./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound10.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_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/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_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/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_c0289f02-50fb-4c00-9818-0a562e443bac/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 ca6b6f09277139d829682a6458fdcdacf72411331aa404fd46248e3dcb9a9e7f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:01:32,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:01:32,141 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:01:32,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:01:32,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:01:32,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:01:32,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:01:32,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:01:32,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:01:32,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:01:32,200 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:01:32,200 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:01:32,200 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:01:32,201 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:01:32,201 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:01:32,201 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:01:32,201 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:01:32,201 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:01:32,201 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:01:32,202 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:01:32,202 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:01:32,202 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:01:32,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:01:32,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:01:32,203 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:01:32,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:01:32,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:01:32,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:01:32,204 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:01:32,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:01:32,204 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:01:32,204 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:01:32,204 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:01:32,204 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:01:32,205 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:01:32,205 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:01:32,205 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:01:32,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:01:32,205 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:01:32,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:01:32,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:01:32,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:01:32,206 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:01:32,206 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:01:32,206 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:01:32,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:01:32,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:01:32,207 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:01:32,207 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:01:32,208 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_c0289f02-50fb-4c00-9818-0a562e443bac/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 -> ca6b6f09277139d829682a6458fdcdacf72411331aa404fd46248e3dcb9a9e7f [2024-11-14 05:01:32,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:01:32,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:01:32,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:01:32,595 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:01:32,596 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:01:32,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound10.c Unable to find full path for "g++" [2024-11-14 05:01:34,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:01:35,096 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:01:35,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound10.c [2024-11-14 05:01:35,106 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/data/d7b1319e1/0098b5e5f6c44d52a3405bc28255ee2a/FLAG6ea588bda [2024-11-14 05:01:35,136 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/data/d7b1319e1/0098b5e5f6c44d52a3405bc28255ee2a [2024-11-14 05:01:35,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:01:35,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:01:35,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:01:35,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:01:35,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:01:35,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f251a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35, skipping insertion in model container [2024-11-14 05:01:35,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,177 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:01:35,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:01:35,384 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:01:35,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:01:35,421 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:01:35,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35 WrapperNode [2024-11-14 05:01:35,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:01:35,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:01:35,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:01:35,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:01:35,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,457 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-11-14 05:01:35,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:01:35,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:01:35,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:01:35,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:01:35,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:01:35,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:01:35,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:01:35,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:01:35,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (1/1) ... [2024-11-14 05:01:35,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:01:35,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:35,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:01:35,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:01:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:01:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:01:35,556 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:01:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:01:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:01:35,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:01:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:01:35,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:01:35,628 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:01:35,631 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:01:36,089 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-14 05:01:36,089 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:01:36,136 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:01:36,136 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:01:36,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:01:36 BoogieIcfgContainer [2024-11-14 05:01:36,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:01:36,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:01:36,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:01:36,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:01:36,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:01:35" (1/3) ... [2024-11-14 05:01:36,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed3978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:01:36, skipping insertion in model container [2024-11-14 05:01:36,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:35" (2/3) ... [2024-11-14 05:01:36,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed3978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:01:36, skipping insertion in model container [2024-11-14 05:01:36,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:01:36" (3/3) ... [2024-11-14 05:01:36,154 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound10.c [2024-11-14 05:01:36,176 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:01:36,180 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG prodbin-ll_valuebound10.c that has 3 procedures, 49 locations, 1 initial locations, 1 loop locations, and 16 error locations. [2024-11-14 05:01:36,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:01:36,268 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;@5e7166a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:01:36,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-14 05:01:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 25 states have (on average 1.76) internal successors, (44), 41 states have internal predecessors, (44), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:01:36,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:01:36,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:36,282 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:01:36,282 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:36,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:36,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1738488458, now seen corresponding path program 1 times [2024-11-14 05:01:36,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:36,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511703644] [2024-11-14 05:01:36,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:36,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:36,507 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 05:01:36,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:36,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511703644] [2024-11-14 05:01:36,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511703644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:36,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:36,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:01:36,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190717278] [2024-11-14 05:01:36,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:36,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:01:36,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:01:36,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:01:36,538 INFO L87 Difference]: Start difference. First operand has 49 states, 25 states have (on average 1.76) internal successors, (44), 41 states have internal predecessors, (44), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 05:01:36,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:36,576 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2024-11-14 05:01:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:01:36,578 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 14 [2024-11-14 05:01:36,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:36,585 INFO L225 Difference]: With dead ends: 58 [2024-11-14 05:01:36,585 INFO L226 Difference]: Without dead ends: 46 [2024-11-14 05:01:36,588 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 05:01:36,591 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:36,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:01:36,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-14 05:01:36,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-14 05:01:36,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 39 states have internal predecessors, (41), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:01:36,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2024-11-14 05:01:36,640 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 14 [2024-11-14 05:01:36,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:36,642 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2024-11-14 05:01:36,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 05:01:36,643 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2024-11-14 05:01:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:01:36,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:36,644 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:01:36,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:01:36,645 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:36,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:36,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1738491322, now seen corresponding path program 1 times [2024-11-14 05:01:36,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:36,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069961172] [2024-11-14 05:01:36,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:36,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:01:36,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951592270] [2024-11-14 05:01:36,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:36,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:36,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:36,689 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:01:36,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:01:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:36,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 05:01:36,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:37,126 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 05:01:37,126 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:01:37,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:37,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069961172] [2024-11-14 05:01:37,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:01:37,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951592270] [2024-11-14 05:01:37,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951592270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:37,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:37,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:01:37,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299260744] [2024-11-14 05:01:37,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:37,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:01:37,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:37,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:01:37,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:01:37,133 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:01:37,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:37,503 INFO L93 Difference]: Finished difference Result 70 states and 87 transitions. [2024-11-14 05:01:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:01:37,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2024-11-14 05:01:37,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:37,505 INFO L225 Difference]: With dead ends: 70 [2024-11-14 05:01:37,505 INFO L226 Difference]: Without dead ends: 58 [2024-11-14 05:01:37,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:01:37,507 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 73 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:37,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 40 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:01:37,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-14 05:01:37,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-11-14 05:01:37,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.5405405405405406) internal successors, (57), 48 states have internal predecessors, (57), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:01:37,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2024-11-14 05:01:37,520 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 14 [2024-11-14 05:01:37,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:37,521 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2024-11-14 05:01:37,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:01:37,521 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2024-11-14 05:01:37,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 05:01:37,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:37,522 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:01:37,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:01:37,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:37,726 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:37,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:37,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1941343915, now seen corresponding path program 1 times [2024-11-14 05:01:37,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:37,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698834719] [2024-11-14 05:01:37,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:37,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:01:37,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455984510] [2024-11-14 05:01:37,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:37,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:37,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:37,780 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:01:37,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:01:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:37,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:01:37,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:38,039 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 05:01:38,039 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:01:38,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:38,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698834719] [2024-11-14 05:01:38,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:01:38,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455984510] [2024-11-14 05:01:38,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455984510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:38,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:38,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:01:38,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596923921] [2024-11-14 05:01:38,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:38,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:01:38,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:38,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:01:38,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:01:38,043 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 7 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:01:38,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:38,286 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2024-11-14 05:01:38,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:01:38,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2024-11-14 05:01:38,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:38,288 INFO L225 Difference]: With dead ends: 60 [2024-11-14 05:01:38,288 INFO L226 Difference]: Without dead ends: 57 [2024-11-14 05:01:38,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:01:38,289 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 114 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:38,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 46 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:01:38,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-14 05:01:38,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-14 05:01:38,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.4736842105263157) internal successors, (56), 49 states have internal predecessors, (56), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:01:38,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 66 transitions. [2024-11-14 05:01:38,311 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 66 transitions. Word has length 15 [2024-11-14 05:01:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:38,312 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 66 transitions. [2024-11-14 05:01:38,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:01:38,312 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2024-11-14 05:01:38,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 05:01:38,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:38,313 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:01:38,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:01:38,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:38,515 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:38,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:38,516 INFO L85 PathProgramCache]: Analyzing trace with hash 52119272, now seen corresponding path program 1 times [2024-11-14 05:01:38,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:38,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252820810] [2024-11-14 05:01:38,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:38,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:38,633 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 05:01:38,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:38,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252820810] [2024-11-14 05:01:38,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252820810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:38,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:38,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:01:38,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752140707] [2024-11-14 05:01:38,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:38,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:01:38,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:38,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:01:38,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:01:38,636 INFO L87 Difference]: Start difference. First operand 57 states and 66 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 05:01:38,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:38,720 INFO L93 Difference]: Finished difference Result 80 states and 94 transitions. [2024-11-14 05:01:38,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:01:38,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 16 [2024-11-14 05:01:38,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:38,724 INFO L225 Difference]: With dead ends: 80 [2024-11-14 05:01:38,724 INFO L226 Difference]: Without dead ends: 79 [2024-11-14 05:01:38,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:01:38,725 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 27 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:38,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 59 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:01:38,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-14 05:01:38,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 71. [2024-11-14 05:01:38,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 62 states have internal predecessors, (76), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:01:38,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2024-11-14 05:01:38,747 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 16 [2024-11-14 05:01:38,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:38,747 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2024-11-14 05:01:38,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 05:01:38,747 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2024-11-14 05:01:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 05:01:38,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:38,749 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:01:38,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:01:38,750 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:38,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:38,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1615697485, now seen corresponding path program 1 times [2024-11-14 05:01:38,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:38,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612666440] [2024-11-14 05:01:38,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:38,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:39,006 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 05:01:39,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:39,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612666440] [2024-11-14 05:01:39,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612666440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:39,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:39,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:01:39,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456535955] [2024-11-14 05:01:39,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:39,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:01:39,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:39,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:01:39,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:01:39,008 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 05:01:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:39,308 INFO L93 Difference]: Finished difference Result 80 states and 92 transitions. [2024-11-14 05:01:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:01:39,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 17 [2024-11-14 05:01:39,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:39,310 INFO L225 Difference]: With dead ends: 80 [2024-11-14 05:01:39,310 INFO L226 Difference]: Without dead ends: 79 [2024-11-14 05:01:39,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:01:39,311 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 25 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:39,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 62 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:01:39,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-14 05:01:39,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 71. [2024-11-14 05:01:39,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 62 states have internal predecessors, (74), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:01:39,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2024-11-14 05:01:39,333 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 17 [2024-11-14 05:01:39,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:39,334 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2024-11-14 05:01:39,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 05:01:39,336 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2024-11-14 05:01:39,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 05:01:39,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:39,337 INFO L215 NwaCegarLoop]: trace histogram [3, 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 05:01:39,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:01:39,337 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:39,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:39,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1762280930, now seen corresponding path program 1 times [2024-11-14 05:01:39,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:39,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676789499] [2024-11-14 05:01:39,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:39,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:39,592 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 05:01:39,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:39,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676789499] [2024-11-14 05:01:39,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676789499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:39,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:39,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:01:39,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186628142] [2024-11-14 05:01:39,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:39,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:01:39,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:39,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:01:39,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:01:39,594 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:01:39,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:39,776 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions. [2024-11-14 05:01:39,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:01:39,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-11-14 05:01:39,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:39,778 INFO L225 Difference]: With dead ends: 72 [2024-11-14 05:01:39,780 INFO L226 Difference]: Without dead ends: 71 [2024-11-14 05:01:39,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:01:39,782 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 49 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:39,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 53 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:01:39,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-14 05:01:39,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-14 05:01:39,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 62 states have internal predecessors, (73), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:01:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 85 transitions. [2024-11-14 05:01:39,803 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 85 transitions. Word has length 25 [2024-11-14 05:01:39,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:39,803 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 85 transitions. [2024-11-14 05:01:39,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:01:39,804 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 85 transitions. [2024-11-14 05:01:39,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 05:01:39,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:39,805 INFO L215 NwaCegarLoop]: trace histogram [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 05:01:39,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:01:39,806 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:39,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:39,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1203865948, now seen corresponding path program 1 times [2024-11-14 05:01:39,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:39,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759143774] [2024-11-14 05:01:39,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:39,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:39,968 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 05:01:39,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:39,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759143774] [2024-11-14 05:01:39,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759143774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:39,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:39,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:01:39,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866244447] [2024-11-14 05:01:39,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:39,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:01:39,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:39,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:01:39,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:01:39,970 INFO L87 Difference]: Start difference. First operand 71 states and 85 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:01:40,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:40,064 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2024-11-14 05:01:40,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:01:40,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-11-14 05:01:40,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:40,066 INFO L225 Difference]: With dead ends: 72 [2024-11-14 05:01:40,066 INFO L226 Difference]: Without dead ends: 71 [2024-11-14 05:01:40,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:01:40,067 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 47 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:40,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 54 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:01:40,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-14 05:01:40,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-14 05:01:40,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.411764705882353) internal successors, (72), 62 states have internal predecessors, (72), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:01:40,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2024-11-14 05:01:40,090 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 26 [2024-11-14 05:01:40,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:40,090 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2024-11-14 05:01:40,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:01:40,091 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2024-11-14 05:01:40,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 05:01:40,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:40,092 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:01:40,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:01:40,092 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:40,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:40,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1559397264, now seen corresponding path program 1 times [2024-11-14 05:01:40,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:40,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007031427] [2024-11-14 05:01:40,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:40,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:40,282 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 05:01:40,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:40,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007031427] [2024-11-14 05:01:40,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007031427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:40,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:40,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:01:40,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333943349] [2024-11-14 05:01:40,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:40,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:01:40,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:40,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:01:40,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:01:40,285 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:01:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:40,379 INFO L93 Difference]: Finished difference Result 71 states and 84 transitions. [2024-11-14 05:01:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:01:40,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2024-11-14 05:01:40,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:40,383 INFO L225 Difference]: With dead ends: 71 [2024-11-14 05:01:40,383 INFO L226 Difference]: Without dead ends: 69 [2024-11-14 05:01:40,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:01:40,384 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 38 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:40,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 39 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:01:40,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-14 05:01:40,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2024-11-14 05:01:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 50 states have (on average 1.36) internal successors, (68), 59 states have internal predecessors, (68), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:01:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2024-11-14 05:01:40,408 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 28 [2024-11-14 05:01:40,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:40,408 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2024-11-14 05:01:40,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:01:40,409 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2024-11-14 05:01:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 05:01:40,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:40,410 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:01:40,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:01:40,410 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:40,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:40,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1393463703, now seen corresponding path program 1 times [2024-11-14 05:01:40,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:40,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154314897] [2024-11-14 05:01:40,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:40,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:40,514 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 05:01:40,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:40,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154314897] [2024-11-14 05:01:40,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154314897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:40,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:40,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:01:40,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541051007] [2024-11-14 05:01:40,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:40,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:01:40,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:40,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:01:40,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:01:40,517 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:01:40,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:40,664 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2024-11-14 05:01:40,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:01:40,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2024-11-14 05:01:40,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:40,666 INFO L225 Difference]: With dead ends: 72 [2024-11-14 05:01:40,666 INFO L226 Difference]: Without dead ends: 71 [2024-11-14 05:01:40,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:01:40,667 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 48 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:40,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 49 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:01:40,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-14 05:01:40,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2024-11-14 05:01:40,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 61 states have internal predecessors, (70), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:01:40,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2024-11-14 05:01:40,681 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 29 [2024-11-14 05:01:40,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:40,682 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2024-11-14 05:01:40,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:01:40,683 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2024-11-14 05:01:40,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 05:01:40,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:40,684 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:01:40,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:01:40,685 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:40,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:40,685 INFO L85 PathProgramCache]: Analyzing trace with hash -247701752, now seen corresponding path program 1 times [2024-11-14 05:01:40,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:40,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141202367] [2024-11-14 05:01:40,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:40,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:40,751 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 05:01:40,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:40,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141202367] [2024-11-14 05:01:40,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141202367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:40,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:40,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:01:40,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950242983] [2024-11-14 05:01:40,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:40,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:01:40,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:40,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:01:40,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:01:40,754 INFO L87 Difference]: Start difference. First operand 70 states and 82 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:01:40,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:40,831 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2024-11-14 05:01:40,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:01:40,832 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2024-11-14 05:01:40,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:40,833 INFO L225 Difference]: With dead ends: 72 [2024-11-14 05:01:40,833 INFO L226 Difference]: Without dead ends: 71 [2024-11-14 05:01:40,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:01:40,835 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 46 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:40,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 50 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:01:40,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-14 05:01:40,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-14 05:01:40,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 62 states have internal predecessors, (71), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:01:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2024-11-14 05:01:40,849 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 30 [2024-11-14 05:01:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:40,850 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2024-11-14 05:01:40,850 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:01:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2024-11-14 05:01:40,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 05:01:40,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:40,851 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-14 05:01:40,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 05:01:40,852 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:01:40,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:40,852 INFO L85 PathProgramCache]: Analyzing trace with hash 362817042, now seen corresponding path program 1 times [2024-11-14 05:01:40,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:40,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684319479] [2024-11-14 05:01:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:40,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:01:40,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838059442] [2024-11-14 05:01:40,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:40,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:40,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:40,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:01:40,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:01:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:40,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:01:40,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:01:41,380 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:01:44,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:44,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684319479] [2024-11-14 05:01:44,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:01:44,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838059442] [2024-11-14 05:01:44,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838059442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:01:44,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1646595018] [2024-11-14 05:01:44,157 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:01:44,157 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:01:44,161 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:01:44,167 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:01:44,171 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:01:48,260 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 121 for LOIs [2024-11-14 05:01:48,444 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:01:48,445 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:02:01,545 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1929#(exists ((|v_ULTIMATE.start_main_~x~0#1_36| Int) (|v_ULTIMATE.start_main_~y~0#1_41| Int)) (and (<= 1 |#StackHeapBarrier|) (= (mod |v_ULTIMATE.start_main_~x~0#1_36| 2) 0) (<= 0 (+ 4611686018427387904 (div |v_ULTIMATE.start_main_~x~0#1_36| 2))) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~x~0#1_36| |v_ULTIMATE.start_main_~y~0#1_41|)) 0) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= (div |v_ULTIMATE.start_main_~x~0#1_36| 2) 4611686018427387903) (<= |ULTIMATE.start_main_~b~0#1| 10) (<= |ULTIMATE.start_main_~a~0#1| 10) (= |ULTIMATE.start_main_~z~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_40| Int)) (and (or (and (not (= (mod |v_ULTIMATE.start_main_~y~0#1_40| 2) 0)) (= |v_ULTIMATE.start_main_~y~0#1_41| (+ (div |v_ULTIMATE.start_main_~y~0#1_40| 2) 1))) (and (= (mod |v_ULTIMATE.start_main_~y~0#1_40| 2) 0) (= (div |v_ULTIMATE.start_main_~y~0#1_40| 2) |v_ULTIMATE.start_main_~y~0#1_41|))) (<= (div |v_ULTIMATE.start_main_~y~0#1_40| 2) 9223372036854775807) (or (< |v_ULTIMATE.start_main_~y~0#1_40| 0) (not (= (mod |v_ULTIMATE.start_main_~y~0#1_40| 2) 1))) (or (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~y~0#1_40| 2))) (and (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~y~0#1_40| 2)) 0) (not (= (mod |v_ULTIMATE.start_main_~y~0#1_40| 2) 0))))))))' at error location [2024-11-14 05:02:01,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:02:01,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:02:01,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-14 05:02:01,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131322623] [2024-11-14 05:02:01,546 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:02:01,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:02:01,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:02:01,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:02:01,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=821, Unknown=2, NotChecked=0, Total=992 [2024-11-14 05:02:01,548 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand has 9 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:02:01,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:02:01,946 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2024-11-14 05:02:01,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:02:01,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 30 [2024-11-14 05:02:01,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:02:01,947 INFO L225 Difference]: With dead ends: 84 [2024-11-14 05:02:01,948 INFO L226 Difference]: Without dead ends: 80 [2024-11-14 05:02:01,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=207, Invalid=981, Unknown=2, NotChecked=0, Total=1190 [2024-11-14 05:02:01,949 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 48 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:02:01,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 43 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:02:01,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-14 05:02:01,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 66. [2024-11-14 05:02:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 57 states have internal predecessors, (63), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:02:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2024-11-14 05:02:01,958 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 30 [2024-11-14 05:02:01,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:02:01,959 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2024-11-14 05:02:01,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:02:01,959 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2024-11-14 05:02:01,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 05:02:01,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:02:01,960 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-14 05:02:01,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:02:02,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:02:02,164 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:02:02,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:02:02,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1637573537, now seen corresponding path program 1 times [2024-11-14 05:02:02,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:02:02,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466770739] [2024-11-14 05:02:02,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:02,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:02:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:02:02,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120055115] [2024-11-14 05:02:02,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:02,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:02:02,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:02:02,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:02:02,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:02:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:02,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:02:02,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:02:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:02:03,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:02:05,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:02:05,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466770739] [2024-11-14 05:02:05,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:02:05,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120055115] [2024-11-14 05:02:05,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120055115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:02:05,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1193367553] [2024-11-14 05:02:05,874 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:02:05,874 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:02:05,874 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:02:05,875 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:02:05,875 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:02:07,707 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 123 for LOIs [2024-11-14 05:02:07,797 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:02:07,799 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:02:18,478 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2266#(exists ((|v_ULTIMATE.start_main_~y~0#1_48| Int) (|v_ULTIMATE.start_main_~x~0#1_43| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_43| |v_ULTIMATE.start_main_~y~0#1_48|)) (<= 0 (+ 4611686018427387903 (div (* (- 1) |v_ULTIMATE.start_main_~x~0#1_43|) 2))) (<= 1 |ULTIMATE.start_main_~b~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_47| Int)) (and (or (and (= |v_ULTIMATE.start_main_~y~0#1_48| (div |v_ULTIMATE.start_main_~y~0#1_47| 2)) (= (mod |v_ULTIMATE.start_main_~y~0#1_47| 2) 0)) (and (not (= (mod |v_ULTIMATE.start_main_~y~0#1_47| 2) 0)) (= (+ (div |v_ULTIMATE.start_main_~y~0#1_47| 2) 1) |v_ULTIMATE.start_main_~y~0#1_48|))) (or (< |v_ULTIMATE.start_main_~y~0#1_47| 0) (not (= (mod |v_ULTIMATE.start_main_~y~0#1_47| 2) 1))) (or (= 9223372036854775807 (div |v_ULTIMATE.start_main_~y~0#1_47| 2)) (< (div |v_ULTIMATE.start_main_~y~0#1_47| 2) 9223372036854775807)) (or (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~y~0#1_47| 2))) (and (not (= (mod |v_ULTIMATE.start_main_~y~0#1_47| 2) 0)) (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~y~0#1_47| 2)) 0))))) (<= |ULTIMATE.start_main_~b~0#1| 10) (<= |ULTIMATE.start_main_~a~0#1| 10) (<= (div (* (- 1) |v_ULTIMATE.start_main_~x~0#1_43|) 2) 4611686018427387904) (= |ULTIMATE.start_main_~z~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1|) (= (mod |v_ULTIMATE.start_main_~x~0#1_43| 2) 0)))' at error location [2024-11-14 05:02:18,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:02:18,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:02:18,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 05:02:18,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465589651] [2024-11-14 05:02:18,479 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:02:18,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 05:02:18,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:02:18,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 05:02:18,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=891, Unknown=1, NotChecked=0, Total=1056 [2024-11-14 05:02:18,481 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand has 10 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:02:22,186 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 05:02:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:02:22,188 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2024-11-14 05:02:22,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:02:22,192 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31 [2024-11-14 05:02:22,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:02:22,193 INFO L225 Difference]: With dead ends: 74 [2024-11-14 05:02:22,193 INFO L226 Difference]: Without dead ends: 72 [2024-11-14 05:02:22,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=248, Invalid=1311, Unknown=1, NotChecked=0, Total=1560 [2024-11-14 05:02:22,194 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 63 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:02:22,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 71 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 273 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2024-11-14 05:02:22,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-14 05:02:22,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2024-11-14 05:02:22,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 50 states have (on average 1.18) internal successors, (59), 55 states have internal predecessors, (59), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:02:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2024-11-14 05:02:22,203 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 31 [2024-11-14 05:02:22,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:02:22,203 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2024-11-14 05:02:22,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:02:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2024-11-14 05:02:22,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 05:02:22,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:02:22,204 INFO L215 NwaCegarLoop]: trace histogram [3, 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 05:02:22,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:02:22,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:02:22,408 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:02:22,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:02:22,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1559840987, now seen corresponding path program 1 times [2024-11-14 05:02:22,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:02:22,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997886823] [2024-11-14 05:02:22,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:22,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:02:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:02:22,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127987242] [2024-11-14 05:02:22,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:22,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:02:22,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:02:22,434 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:02:22,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:02:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:22,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 05:02:22,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:02:23,217 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:02:23,218 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:02:24,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:02:24,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997886823] [2024-11-14 05:02:24,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:02:24,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127987242] [2024-11-14 05:02:24,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127987242] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:02:24,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [454748415] [2024-11-14 05:02:24,895 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:02:24,895 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:02:24,896 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:02:24,896 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:02:24,896 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:02:25,799 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 70 for LOIs [2024-11-14 05:02:25,824 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:02:25,826 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:02:29,985 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2622#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 10) (<= |ULTIMATE.start_main_~a~0#1| 10) (<= |ULTIMATE.start_main_~z~0#1| 10) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 0 |ULTIMATE.start_main_~z~0#1|) (exists ((|v_ULTIMATE.start_main_~x~0#1_48| Int) (|v_ULTIMATE.start_main_~y~0#1_57| Int)) (and (<= |v_ULTIMATE.start_main_~x~0#1_48| 20) (<= 0 |v_ULTIMATE.start_main_~x~0#1_48|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_48| |v_ULTIMATE.start_main_~y~0#1_57|)))))' at error location [2024-11-14 05:02:29,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:02:29,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:02:29,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 05:02:29,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703926759] [2024-11-14 05:02:29,986 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:02:29,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:02:29,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:02:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:02:29,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=822, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 05:02:29,987 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 11 states have internal predecessors, (26), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:02:31,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:02:31,848 INFO L93 Difference]: Finished difference Result 87 states and 103 transitions. [2024-11-14 05:02:31,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:02:31,849 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 11 states have internal predecessors, (26), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 35 [2024-11-14 05:02:31,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:02:31,850 INFO L225 Difference]: With dead ends: 87 [2024-11-14 05:02:31,850 INFO L226 Difference]: Without dead ends: 85 [2024-11-14 05:02:31,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 45 SyntacticMatches, 7 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=389, Invalid=1417, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 05:02:31,852 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 60 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:02:31,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 70 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 05:02:31,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-14 05:02:31,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 70. [2024-11-14 05:02:31,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 61 states have internal predecessors, (66), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:02:31,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2024-11-14 05:02:31,863 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 35 [2024-11-14 05:02:31,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:02:31,863 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2024-11-14 05:02:31,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 11 states have internal predecessors, (26), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:02:31,864 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2024-11-14 05:02:31,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-14 05:02:31,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:02:31,866 INFO L215 NwaCegarLoop]: trace histogram [3, 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 05:02:31,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 05:02:32,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:02:32,067 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:02:32,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:02:32,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1110430290, now seen corresponding path program 1 times [2024-11-14 05:02:32,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:02:32,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124849664] [2024-11-14 05:02:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:32,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:02:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:32,254 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:02:32,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:02:32,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124849664] [2024-11-14 05:02:32,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124849664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:02:32,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878123910] [2024-11-14 05:02:32,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:32,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:02:32,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:02:32,256 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:02:32,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:02:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:32,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:02:32,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:02:32,472 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:02:32,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:02:32,647 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:02:32,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878123910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:02:32,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [830725104] [2024-11-14 05:02:32,649 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:02:32,650 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:02:32,650 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:02:32,650 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:02:32,650 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:02:33,422 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 70 for LOIs [2024-11-14 05:02:33,441 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:02:33,442 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:02:37,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [830725104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:02:37,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:02:37,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6, 6, 6] total 26 [2024-11-14 05:02:37,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626556589] [2024-11-14 05:02:37,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:02:37,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 05:02:37,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:02:37,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 05:02:37,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2024-11-14 05:02:37,097 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 18 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:02:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:02:38,155 INFO L93 Difference]: Finished difference Result 97 states and 108 transitions. [2024-11-14 05:02:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 05:02:38,156 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2024-11-14 05:02:38,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:02:38,157 INFO L225 Difference]: With dead ends: 97 [2024-11-14 05:02:38,157 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 05:02:38,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 76 SyntacticMatches, 12 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2024-11-14 05:02:38,157 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 124 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:02:38,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 40 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:02:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 05:02:38,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2024-11-14 05:02:38,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 70 states have (on average 1.1428571428571428) internal successors, (80), 74 states have internal predecessors, (80), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 05:02:38,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2024-11-14 05:02:38,170 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 36 [2024-11-14 05:02:38,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:02:38,170 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2024-11-14 05:02:38,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:02:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2024-11-14 05:02:38,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 05:02:38,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:02:38,171 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:02:38,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 05:02:38,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 05:02:38,372 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:02:38,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:02:38,372 INFO L85 PathProgramCache]: Analyzing trace with hash 589205616, now seen corresponding path program 1 times [2024-11-14 05:02:38,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:02:38,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825563007] [2024-11-14 05:02:38,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:38,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:02:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:38,479 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:02:38,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:02:38,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825563007] [2024-11-14 05:02:38,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825563007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:02:38,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:02:38,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:02:38,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447596753] [2024-11-14 05:02:38,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:02:38,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:02:38,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:02:38,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:02:38,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:02:38,481 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-14 05:02:38,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:02:38,585 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2024-11-14 05:02:38,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:02:38,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 42 [2024-11-14 05:02:38,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:02:38,587 INFO L225 Difference]: With dead ends: 91 [2024-11-14 05:02:38,587 INFO L226 Difference]: Without dead ends: 90 [2024-11-14 05:02:38,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:02:38,588 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:02:38,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 69 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:02:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-14 05:02:38,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2024-11-14 05:02:38,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 76 states have internal predecessors, (82), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 05:02:38,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2024-11-14 05:02:38,608 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 42 [2024-11-14 05:02:38,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:02:38,610 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2024-11-14 05:02:38,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-14 05:02:38,610 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2024-11-14 05:02:38,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 05:02:38,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:02:38,614 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:02:38,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 05:02:38,615 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:02:38,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:02:38,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1470280404, now seen corresponding path program 1 times [2024-11-14 05:02:38,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:02:38,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040496462] [2024-11-14 05:02:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:38,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:02:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:02:38,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:02:38,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040496462] [2024-11-14 05:02:38,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040496462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:02:38,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700360813] [2024-11-14 05:02:38,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:38,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:02:38,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:02:38,767 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:02:38,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:02:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:38,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:02:38,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:02:38,915 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:02:38,915 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:02:39,041 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:02:39,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700360813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:02:39,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [33752670] [2024-11-14 05:02:39,043 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:02:39,043 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:02:39,044 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:02:39,044 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:02:39,044 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:02:47,035 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 05:02:47,037 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:02:47,038 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:02:50,966 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3512#true' at error location [2024-11-14 05:02:50,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:02:50,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:02:50,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-14 05:02:50,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204557158] [2024-11-14 05:02:50,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:02:50,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:02:50,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:02:50,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:02:50,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=765, Unknown=1, NotChecked=0, Total=870 [2024-11-14 05:02:50,968 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-14 05:02:51,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:02:51,299 INFO L93 Difference]: Finished difference Result 257 states and 295 transitions. [2024-11-14 05:02:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:02:51,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 46 [2024-11-14 05:02:51,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:02:51,302 INFO L225 Difference]: With dead ends: 257 [2024-11-14 05:02:51,302 INFO L226 Difference]: Without dead ends: 256 [2024-11-14 05:02:51,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=136, Invalid=985, Unknown=1, NotChecked=0, Total=1122 [2024-11-14 05:02:51,304 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 218 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:02:51,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 71 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:02:51,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-14 05:02:51,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 224. [2024-11-14 05:02:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 203 states have (on average 1.1231527093596059) internal successors, (228), 207 states have internal predecessors, (228), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:02:51,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2024-11-14 05:02:51,346 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 46 [2024-11-14 05:02:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:02:51,347 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2024-11-14 05:02:51,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-14 05:02:51,347 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2024-11-14 05:02:51,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 05:02:51,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:02:51,349 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 05:02:51,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:02:51,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 05:02:51,550 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:02:51,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:02:51,551 INFO L85 PathProgramCache]: Analyzing trace with hash 693670105, now seen corresponding path program 1 times [2024-11-14 05:02:51,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:02:51,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74436084] [2024-11-14 05:02:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:51,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:02:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:02:51,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1915465668] [2024-11-14 05:02:51,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:51,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:02:51,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:02:51,593 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:02:51,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:02:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:51,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 05:02:51,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:02:53,831 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:02:53,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:03:39,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:03:39,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74436084] [2024-11-14 05:03:39,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:03:39,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915465668] [2024-11-14 05:03:39,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915465668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:03:39,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [630306251] [2024-11-14 05:03:39,351 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:03:39,351 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:03:39,351 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:03:39,352 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:03:39,352 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:03:41,054 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 71 for LOIs [2024-11-14 05:03:41,075 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:03:41,076 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:04:06,553 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4367#true' at error location [2024-11-14 05:04:06,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:04:06,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:04:06,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-14 05:04:06,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034404113] [2024-11-14 05:04:06,553 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:04:06,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 05:04:06,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:04:06,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 05:04:06,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=2276, Unknown=9, NotChecked=0, Total=2652 [2024-11-14 05:04:06,556 INFO L87 Difference]: Start difference. First operand 224 states and 256 transitions. Second operand has 17 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-14 05:04:11,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:04:14,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:04:16,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:04:19,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:04:27,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:04:29,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:04:31,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:04:32,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:04:32,237 INFO L93 Difference]: Finished difference Result 241 states and 277 transitions. [2024-11-14 05:04:32,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 05:04:32,238 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 51 [2024-11-14 05:04:32,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:04:32,240 INFO L225 Difference]: With dead ends: 241 [2024-11-14 05:04:32,240 INFO L226 Difference]: Without dead ends: 240 [2024-11-14 05:04:32,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 984 ImplicationChecksByTransitivity, 55.3s TimeCoverageRelationStatistics Valid=420, Invalid=2541, Unknown=9, NotChecked=0, Total=2970 [2024-11-14 05:04:32,243 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 40 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 6 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:04:32,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 154 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 711 Invalid, 7 Unknown, 0 Unchecked, 24.1s Time] [2024-11-14 05:04:32,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-14 05:04:32,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 217. [2024-11-14 05:04:32,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 196 states have (on average 1.1224489795918366) internal successors, (220), 200 states have internal predecessors, (220), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:04:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 248 transitions. [2024-11-14 05:04:32,272 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 248 transitions. Word has length 51 [2024-11-14 05:04:32,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:04:32,273 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 248 transitions. [2024-11-14 05:04:32,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-14 05:04:32,273 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 248 transitions. [2024-11-14 05:04:32,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 05:04:32,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:04:32,274 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-14 05:04:32,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 05:04:32,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 05:04:32,474 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:04:32,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:04:32,475 INFO L85 PathProgramCache]: Analyzing trace with hash 28936826, now seen corresponding path program 1 times [2024-11-14 05:04:32,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:04:32,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379681912] [2024-11-14 05:04:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:04:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:04:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:04:32,752 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:04:32,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:04:32,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379681912] [2024-11-14 05:04:32,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379681912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:04:32,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247169295] [2024-11-14 05:04:32,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:04:32,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:04:32,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:04:32,755 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:04:32,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 05:04:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:04:32,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:04:32,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:04:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:04:33,066 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:04:33,300 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:04:33,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247169295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:04:33,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [42778147] [2024-11-14 05:04:33,302 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:04:33,302 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:04:33,302 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:04:33,302 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:04:33,302 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:04:34,344 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 71 for LOIs [2024-11-14 05:04:34,392 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:04:34,394 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:04:44,053 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5188#true' at error location [2024-11-14 05:04:44,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:04:44,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:04:44,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-14 05:04:44,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933052825] [2024-11-14 05:04:44,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:04:44,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:04:44,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:04:44,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:04:44,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=988, Unknown=1, NotChecked=0, Total=1122 [2024-11-14 05:04:44,055 INFO L87 Difference]: Start difference. First operand 217 states and 248 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-14 05:04:44,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:04:44,606 INFO L93 Difference]: Finished difference Result 219 states and 250 transitions. [2024-11-14 05:04:44,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:04:44,606 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) Word has length 52 [2024-11-14 05:04:44,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:04:44,608 INFO L225 Difference]: With dead ends: 219 [2024-11-14 05:04:44,608 INFO L226 Difference]: Without dead ends: 218 [2024-11-14 05:04:44,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=185, Invalid=1296, Unknown=1, NotChecked=0, Total=1482 [2024-11-14 05:04:44,609 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 95 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:04:44,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 47 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:04:44,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-14 05:04:44,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2024-11-14 05:04:44,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 196 states have (on average 1.1071428571428572) internal successors, (217), 199 states have internal predecessors, (217), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:04:44,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 245 transitions. [2024-11-14 05:04:44,631 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 245 transitions. Word has length 52 [2024-11-14 05:04:44,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:04:44,632 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 245 transitions. [2024-11-14 05:04:44,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-14 05:04:44,632 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 245 transitions. [2024-11-14 05:04:44,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 05:04:44,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:04:44,633 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-14 05:04:44,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 05:04:44,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 05:04:44,833 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:04:44,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:04:44,834 INFO L85 PathProgramCache]: Analyzing trace with hash 897041659, now seen corresponding path program 1 times [2024-11-14 05:04:44,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:04:44,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904149452] [2024-11-14 05:04:44,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:04:44,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:04:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:04:44,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [946481860] [2024-11-14 05:04:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:04:44,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:04:44,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:04:44,861 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:04:44,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 05:04:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:04:44,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 05:04:44,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:04:46,726 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 05:04:46,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:05:32,154 WARN L286 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:05:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 05:05:47,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:05:47,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904149452] [2024-11-14 05:05:47,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:05:47,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946481860] [2024-11-14 05:05:47,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946481860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:05:47,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [629149919] [2024-11-14 05:05:47,018 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:05:47,018 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:05:47,019 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:05:47,019 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:05:47,019 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:05:48,205 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 71 for LOIs [2024-11-14 05:05:48,223 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:05:48,225 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:06:17,085 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6035#true' at error location [2024-11-14 05:06:17,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:06:17,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:06:17,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2024-11-14 05:06:17,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338207684] [2024-11-14 05:06:17,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:06:17,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-14 05:06:17,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:06:17,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-14 05:06:17,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=1990, Unknown=8, NotChecked=0, Total=2256 [2024-11-14 05:06:17,088 INFO L87 Difference]: Start difference. First operand 216 states and 245 transitions. Second operand has 25 states, 23 states have (on average 3.347826086956522) internal successors, (77), 24 states have internal predecessors, (77), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-14 05:06:22,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 05:06:34,427 WARN L286 SmtUtils]: Spent 9.05s on a formula simplification. DAG size of input: 77 DAG size of output: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:06:56,130 WARN L286 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 75 DAG size of output: 67 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:07:18,134 WARN L286 SmtUtils]: Spent 13.35s on a formula simplification. DAG size of input: 99 DAG size of output: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:07:20,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 05:07:21,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 05:07:23,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 05:07:27,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 05:07:31,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 05:07:41,106 WARN L286 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 70 DAG size of output: 55 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:07:43,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:07:43,157 INFO L93 Difference]: Finished difference Result 269 states and 311 transitions. [2024-11-14 05:07:43,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 05:07:43,158 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 3.347826086956522) internal successors, (77), 24 states have internal predecessors, (77), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2024-11-14 05:07:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:07:43,159 INFO L225 Difference]: With dead ends: 269 [2024-11-14 05:07:43,159 INFO L226 Difference]: Without dead ends: 267 [2024-11-14 05:07:43,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1041 ImplicationChecksByTransitivity, 124.7s TimeCoverageRelationStatistics Valid=493, Invalid=3277, Unknown=12, NotChecked=0, Total=3782 [2024-11-14 05:07:43,160 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 93 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 26 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:07:43,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 213 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 737 Invalid, 2 Unknown, 0 Unchecked, 22.2s Time] [2024-11-14 05:07:43,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-14 05:07:43,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 264. [2024-11-14 05:07:43,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 241 states have (on average 1.116182572614108) internal successors, (269), 244 states have internal predecessors, (269), 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 05:07:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 303 transitions. [2024-11-14 05:07:43,202 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 303 transitions. Word has length 53 [2024-11-14 05:07:43,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:07:43,202 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 303 transitions. [2024-11-14 05:07:43,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 3.347826086956522) internal successors, (77), 24 states have internal predecessors, (77), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-14 05:07:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 303 transitions. [2024-11-14 05:07:43,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 05:07:43,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:07:43,204 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-14 05:07:43,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 05:07:43,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:07:43,404 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:07:43,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:07:43,405 INFO L85 PathProgramCache]: Analyzing trace with hash -2146724101, now seen corresponding path program 2 times [2024-11-14 05:07:43,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:07:43,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438528608] [2024-11-14 05:07:43,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:07:43,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:07:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:07:43,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118315480] [2024-11-14 05:07:43,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:07:43,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:07:43,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:07:43,427 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:07:43,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 05:07:43,492 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 05:07:43,492 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:07:43,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:07:43,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:07:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 05:07:44,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:07:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 05:07:50,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:07:50,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438528608] [2024-11-14 05:07:50,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:07:50,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118315480] [2024-11-14 05:07:50,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118315480] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 05:07:50,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:07:50,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-14 05:07:50,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611643373] [2024-11-14 05:07:50,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:07:50,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:07:50,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:07:50,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:07:50,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=173, Unknown=1, NotChecked=0, Total=240 [2024-11-14 05:07:50,314 INFO L87 Difference]: Start difference. First operand 264 states and 303 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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 05:07:54,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:07:54,979 INFO L93 Difference]: Finished difference Result 265 states and 303 transitions. [2024-11-14 05:07:54,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:07:54,980 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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 53 [2024-11-14 05:07:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:07:54,981 INFO L225 Difference]: With dead ends: 265 [2024-11-14 05:07:54,981 INFO L226 Difference]: Without dead ends: 264 [2024-11-14 05:07:54,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=80, Invalid=225, Unknown=1, NotChecked=0, Total=306 [2024-11-14 05:07:54,982 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 10 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:07:54,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 70 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 05:07:54,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-14 05:07:55,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2024-11-14 05:07:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 239 states have (on average 1.104602510460251) internal successors, (264), 242 states have internal predecessors, (264), 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 05:07:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 298 transitions. [2024-11-14 05:07:55,033 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 298 transitions. Word has length 53 [2024-11-14 05:07:55,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:07:55,033 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 298 transitions. [2024-11-14 05:07:55,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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 05:07:55,033 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 298 transitions. [2024-11-14 05:07:55,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 05:07:55,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:07:55,034 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 05:07:55,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 05:07:55,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:07:55,235 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:07:55,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:07:55,235 INFO L85 PathProgramCache]: Analyzing trace with hash 2016106934, now seen corresponding path program 1 times [2024-11-14 05:07:55,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:07:55,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118284501] [2024-11-14 05:07:55,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:07:55,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:07:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:07:55,501 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:07:55,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:07:55,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118284501] [2024-11-14 05:07:55,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118284501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:07:55,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147586032] [2024-11-14 05:07:55,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:07:55,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:07:55,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:07:55,505 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:07:55,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 05:07:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:07:55,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:07:55,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:07:55,976 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:07:55,976 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:07:56,310 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:07:56,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147586032] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:07:56,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [38284716] [2024-11-14 05:07:56,312 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:07:56,312 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:07:56,312 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:07:56,312 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:07:56,312 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:07:57,519 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 71 for LOIs [2024-11-14 05:07:57,545 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:07:57,547 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:08:08,509 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8347#(and (= (mod |ULTIMATE.start_main_~y~0#1| 2) 1) (<= 0 |ULTIMATE.start_main_~y~0#1|) (exists ((|v_ULTIMATE.start_main_~x~0#1_121| Int) (|v_ULTIMATE.start_main_~z~0#1_72| Int)) (and (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) 9223372036854775807) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~x~0#1_121| |v_ULTIMATE.start_main_~z~0#1_72|)) (= (+ (* |v_ULTIMATE.start_main_~x~0#1_121| |ULTIMATE.start_main_~y~0#1|) |v_ULTIMATE.start_main_~z~0#1_72|) (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (<= 0 (+ (* |v_ULTIMATE.start_main_~x~0#1_121| |ULTIMATE.start_main_~y~0#1|) 9223372036854775808)))))' at error location [2024-11-14 05:08:08,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:08:08,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:08:08,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-14 05:08:08,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527976502] [2024-11-14 05:08:08,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:08:08,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 05:08:08,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:08:08,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 05:08:08,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1380, Unknown=1, NotChecked=0, Total=1560 [2024-11-14 05:08:08,510 INFO L87 Difference]: Start difference. First operand 262 states and 298 transitions. Second operand has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 11 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2024-11-14 05:08:09,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:09,437 INFO L93 Difference]: Finished difference Result 424 states and 489 transitions. [2024-11-14 05:08:09,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 05:08:09,438 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 11 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) Word has length 62 [2024-11-14 05:08:09,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:09,441 INFO L225 Difference]: With dead ends: 424 [2024-11-14 05:08:09,444 INFO L226 Difference]: Without dead ends: 423 [2024-11-14 05:08:09,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=281, Invalid=1974, Unknown=1, NotChecked=0, Total=2256 [2024-11-14 05:08:09,450 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 190 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:09,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 161 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:08:09,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-14 05:08:09,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 365. [2024-11-14 05:08:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 336 states have (on average 1.1101190476190477) internal successors, (373), 339 states have internal predecessors, (373), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:08:09,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 419 transitions. [2024-11-14 05:08:09,614 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 419 transitions. Word has length 62 [2024-11-14 05:08:09,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:09,615 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 419 transitions. [2024-11-14 05:08:09,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 11 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2024-11-14 05:08:09,615 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 419 transitions. [2024-11-14 05:08:09,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 05:08:09,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:08:09,617 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:08:09,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-14 05:08:09,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:08:09,823 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:08:09,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:08:09,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1572306291, now seen corresponding path program 2 times [2024-11-14 05:08:09,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:08:09,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887594221] [2024-11-14 05:08:09,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:09,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:08:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:08:09,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [794772972] [2024-11-14 05:08:09,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:08:09,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:08:09,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:08:09,866 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:08:09,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 05:08:09,935 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 05:08:09,935 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:08:09,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:08:09,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:10,876 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 05:08:10,876 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:08:10,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:08:10,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887594221] [2024-11-14 05:08:10,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:08:10,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794772972] [2024-11-14 05:08:10,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794772972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:08:10,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:08:10,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:08:10,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786143431] [2024-11-14 05:08:10,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:08:10,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:08:10,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:08:10,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:08:10,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:08:10,879 INFO L87 Difference]: Start difference. First operand 365 states and 419 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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 05:08:12,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:12,251 INFO L93 Difference]: Finished difference Result 392 states and 449 transitions. [2024-11-14 05:08:12,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:08:12,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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 67 [2024-11-14 05:08:12,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:12,254 INFO L225 Difference]: With dead ends: 392 [2024-11-14 05:08:12,254 INFO L226 Difference]: Without dead ends: 391 [2024-11-14 05:08:12,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:08:12,256 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:12,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 72 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 05:08:12,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-14 05:08:12,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 357. [2024-11-14 05:08:12,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 329 states have (on average 1.088145896656535) internal successors, (358), 331 states have internal predecessors, (358), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:08:12,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 404 transitions. [2024-11-14 05:08:12,317 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 404 transitions. Word has length 67 [2024-11-14 05:08:12,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:12,318 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 404 transitions. [2024-11-14 05:08:12,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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 05:08:12,318 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 404 transitions. [2024-11-14 05:08:12,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 05:08:12,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:08:12,319 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:08:12,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-14 05:08:12,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:08:12,520 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 05:08:12,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:08:12,520 INFO L85 PathProgramCache]: Analyzing trace with hash 637556835, now seen corresponding path program 3 times [2024-11-14 05:08:12,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:08:12,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952460585] [2024-11-14 05:08:12,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:12,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:08:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:14,343 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 102 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 05:08:14,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:08:14,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952460585] [2024-11-14 05:08:14,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952460585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:08:14,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382374161] [2024-11-14 05:08:14,344 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:08:14,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:08:14,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:08:14,346 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:08:14,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 05:08:14,428 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:08:14,428 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:08:14,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:08:14,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 64 proven. 42 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 05:08:15,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 33 proven. 73 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 05:08:18,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382374161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:18,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [196883478] [2024-11-14 05:08:18,012 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:08:18,012 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:08:18,012 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:08:18,012 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:08:18,013 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:08:19,597 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 71 for LOIs [2024-11-14 05:08:19,630 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 05:08:19,632 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:08:31,185 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10338#true' at error location [2024-11-14 05:08:31,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:08:31,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:08:31,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 11] total 28 [2024-11-14 05:08:31,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449886380] [2024-11-14 05:08:31,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:08:31,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 05:08:31,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:08:31,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 05:08:31,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=2266, Unknown=2, NotChecked=0, Total=2550 [2024-11-14 05:08:31,188 INFO L87 Difference]: Start difference. First operand 357 states and 404 transitions. Second operand has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 25 states have internal predecessors, (150), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (16), 14 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-14 05:08:32,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:32,989 INFO L93 Difference]: Finished difference Result 424 states and 475 transitions. [2024-11-14 05:08:32,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 05:08:32,990 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 25 states have internal predecessors, (150), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (16), 14 states have call predecessors, (16), 13 states have call successors, (16) Word has length 85 [2024-11-14 05:08:32,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:32,991 INFO L225 Difference]: With dead ends: 424 [2024-11-14 05:08:32,991 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:08:32,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 217 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1492 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=573, Invalid=3585, Unknown=2, NotChecked=0, Total=4160 [2024-11-14 05:08:32,998 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 121 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:32,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 282 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 05:08:32,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:08:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:08:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:08:33,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:08:33,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2024-11-14 05:08:33,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:33,001 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:08:33,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 25 states have internal predecessors, (150), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (16), 14 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-14 05:08:33,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:08:33,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:08:33,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-14 05:08:33,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-14 05:08:33,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-14 05:08:33,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-14 05:08:33,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-14 05:08:33,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-14 05:08:33,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-14 05:08:33,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-14 05:08:33,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-14 05:08:33,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-14 05:08:33,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-14 05:08:33,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-14 05:08:33,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-14 05:08:33,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-14 05:08:33,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-14 05:08:33,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-14 05:08:33,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-14 05:08:33,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:08:33,215 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:08:33,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:08:43,184 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:08:43,197 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,202 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,205 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:08:43,205 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,206 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,206 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,207 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,207 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,207 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,208 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,208 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,209 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,209 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,209 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,210 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,210 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,210 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,210 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,211 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,212 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,213 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,213 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,213 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,213 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:08:43,213 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,214 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,214 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,214 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,214 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,214 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,216 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,216 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,216 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,216 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,216 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:08:43,216 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,216 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,216 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,217 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,217 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,217 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,223 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:08:43,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 05:08:43,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,225 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,225 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:08:43,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 05:08:43,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,236 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,236 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,236 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,236 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,238 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:08:43,238 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,239 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,239 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,239 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,239 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,239 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,239 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,239 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,240 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,240 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,240 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,240 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,240 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,240 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,240 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,241 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,241 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,241 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,241 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,241 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,241 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:08:43,241 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,242 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,242 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:08:43,242 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:08:43,242 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,242 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:08:43,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:08:43,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:08:43,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:08:43,244 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:08:43,253 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:08:43,253 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:08:43,265 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 05:08:43,266 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:08:43,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:08:43 BoogieIcfgContainer [2024-11-14 05:08:43,267 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:08:43,268 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:08:43,268 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:08:43,269 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:08:43,269 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:01:36" (3/4) ... [2024-11-14 05:08:43,272 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:08:43,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-14 05:08:43,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-14 05:08:43,285 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-14 05:08:43,286 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-14 05:08:43,286 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 05:08:43,286 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:08:43,385 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:08:43,385 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:08:43,385 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:08:43,386 INFO L158 Benchmark]: Toolchain (without parser) took 428243.48ms. Allocated memory was 117.4MB in the beginning and 654.3MB in the end (delta: 536.9MB). Free memory was 91.8MB in the beginning and 459.7MB in the end (delta: -367.9MB). Peak memory consumption was 168.6MB. Max. memory is 16.1GB. [2024-11-14 05:08:43,387 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:08:43,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.83ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 80.6MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:08:43,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.12ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 883.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:08:43,388 INFO L158 Benchmark]: Boogie Preprocessor took 21.17ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 79.0MB in the end (delta: 721.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:08:43,388 INFO L158 Benchmark]: RCFGBuilder took 656.24ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 64.8MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:08:43,388 INFO L158 Benchmark]: TraceAbstraction took 427123.34ms. Allocated memory was 117.4MB in the beginning and 654.3MB in the end (delta: 536.9MB). Free memory was 64.3MB in the beginning and 464.0MB in the end (delta: -399.6MB). Peak memory consumption was 363.0MB. Max. memory is 16.1GB. [2024-11-14 05:08:43,389 INFO L158 Benchmark]: Witness Printer took 117.32ms. Allocated memory is still 654.3MB. Free memory was 464.0MB in the beginning and 459.7MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:08:43,393 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.83ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 80.6MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.12ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 883.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.17ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 79.0MB in the end (delta: 721.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 656.24ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 64.8MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 427123.34ms. Allocated memory was 117.4MB in the beginning and 654.3MB in the end (delta: 536.9MB). Free memory was 64.3MB in the beginning and 464.0MB in the end (delta: -399.6MB). Peak memory consumption was 363.0MB. Max. memory is 16.1GB. * Witness Printer took 117.32ms. Allocated memory is still 654.3MB. Free memory was 464.0MB in the beginning and 459.7MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 417.0s, OverallIterations: 23, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 130.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 1569 SdHoareTripleChecker+Valid, 57.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1550 mSDsluCounter, 1864 SdHoareTripleChecker+Invalid, 56.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1350 mSDsCounter, 172 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4283 IncrementalHoareTripleChecker+Invalid, 4465 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 172 mSolverCounterUnsat, 514 mSDtfsCounter, 4283 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1689 GetRequests, 1166 SyntacticMatches, 37 SemanticMatches, 486 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 6949 ImplicationChecksByTransitivity, 267.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=365occurred in iteration=21, InterpolantAutomatonStates: 209, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 23 MinimizatonAttempts, 224 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 136.3s InterpolantComputationTime, 1487 NumberOfCodeBlocks, 1427 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 1490 ConstructedInterpolants, 23 QuantifiedInterpolants, 13553 SizeOfPredicates, 31 NumberOfNonLiveVariables, 1265 ConjunctsInSsa, 193 ConjunctsInUnsatCore, 35 InterpolantComputations, 13 PerfectInterpolantSequences, 593/1013 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 34, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 50, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 16, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 12, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 76, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 105, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 23, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 34, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 12, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1000, DAG_COMPRESSION_RETAINED_NODES: 107, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((((((((((((x <= 4294967294) && (0 <= x)) && (1 <= y)) && (y <= 5)) && (1 <= b)) && (((x >= 0) ? (x % 2) : ((x % 2) + 2)) == 0)) && (b <= 10)) && (a <= 10)) && (z == 0)) && (0 <= a)) || (((((((((((0 <= x) && (y <= 2)) && (0 <= y)) && (x <= 8589934588)) && (1 <= b)) && (((x >= 0) ? (x % 2) : ((x % 2) + 2)) == 0)) && (b <= 10)) && (a <= 10)) && (0 <= a)) && (z <= 4294967294)) && (0 <= z))) || (((((((((((0 <= x) && (((y >= 0) ? (y / 2) : ((y / 2) - 1)) <= 0)) && (0 <= y)) && (1 <= b)) && (((x >= 0) ? (x % 2) : ((x % 2) + 2)) == 0)) && (b <= 10)) && (a <= 10)) && (0 <= a)) && (x <= 4611686018427387903)) && (((__int128) x + z) <= 9223372036854775807)) && (0 <= z))) || (((((((((0 <= x) && (y == 0)) && (1 <= b)) && (((x >= 0) ? (x % 2) : ((x % 2) + 2)) == 0)) && (b <= 10)) && (a <= 10)) && (z <= 9223372036854775807)) && (0 <= a)) && (0 <= z))) || ((((((((y <= 2) && (1 <= b)) && (b <= 10)) && (a <= 10)) && ((z + ((__int128) 6 * x)) <= 9223372036854775807)) && (((__int128) z * 4) == x)) && (0 <= a)) && (0 <= z))) || (((((((b == y) && (1 <= b)) && (b <= 10)) && (a <= 10)) && (z == 0)) && (0 <= a)) && (a == x))) || ((((((((((((long long) -1 + b) >= 0) ? (((long long) -1 + b) / 2) : ((((long long) -1 + b) / 2) - 1)) == y) && (1 <= b)) && (a == z)) && (((b >= 0) ? (b % 2) : ((b % 2) + 2)) == 1)) && (b <= 10)) && (x == ((long long) 2 * a))) && (a <= 10)) && (0 <= z))) - ProcedureContractResult [Line: 9]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:08:43,617 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-14 05:08:43,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0289f02-50fb-4c00-9818-0a562e443bac/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE