./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX --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 f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:51:32,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:51:32,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:51:32,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:51:32,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:51:32,251 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:51:32,252 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:51:32,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:51:32,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:51:32,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:51:32,259 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:51:32,260 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:51:32,261 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:51:32,262 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:51:32,263 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:51:32,263 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:51:32,264 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:51:32,264 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:51:32,264 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:51:32,265 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:51:32,265 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:51:32,266 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:51:32,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:51:32,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:51:32,268 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:51:32,268 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:51:32,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:51:32,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:51:32,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:51:32,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:51:32,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:51:32,272 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:51:32,272 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:51:32,272 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:51:32,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:51:32,273 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:51:32,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:51:32,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:51:32,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:32,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:51:32,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:51:32,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:51:32,276 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:51:32,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:51:32,276 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:51:32,277 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:51:32,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:51:32,277 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2023-11-12 00:51:32,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:51:32,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:51:32,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:51:32,662 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:51:32,663 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:51:32,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-11-12 00:51:35,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:51:36,115 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:51:36,116 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-11-12 00:51:36,133 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/data/2da0035bf/c9066d56179a4c76a938323665e63f38/FLAGedec138a8 [2023-11-12 00:51:36,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/data/2da0035bf/c9066d56179a4c76a938323665e63f38 [2023-11-12 00:51:36,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:51:36,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:51:36,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:36,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:51:36,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:51:36,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e8b331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36, skipping insertion in model container [2023-11-12 00:51:36,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,227 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:51:36,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:36,500 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:51:36,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:36,560 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:51:36,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36 WrapperNode [2023-11-12 00:51:36,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:36,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:36,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:51:36,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:51:36,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,611 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 163 [2023-11-12 00:51:36,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:36,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:51:36,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:51:36,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:51:36,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:51:36,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:51:36,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:51:36,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:51:36,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (1/1) ... [2023-11-12 00:51:36,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:36,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:36,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:51:36,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:51:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:51:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:51:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-12 00:51:36,729 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-12 00:51:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:51:36,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:51:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:51:36,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:51:36,844 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:51:36,848 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:51:37,362 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:51:37,608 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:51:37,608 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:51:37,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:37 BoogieIcfgContainer [2023-11-12 00:51:37,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:51:37,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:51:37,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:51:37,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:51:37,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:51:36" (1/3) ... [2023-11-12 00:51:37,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d6287c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:37, skipping insertion in model container [2023-11-12 00:51:37,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:36" (2/3) ... [2023-11-12 00:51:37,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d6287c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:37, skipping insertion in model container [2023-11-12 00:51:37,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:37" (3/3) ... [2023-11-12 00:51:37,621 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2023-11-12 00:51:37,641 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:51:37,641 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-12 00:51:37,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:51:37,699 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44c47b98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:51:37,699 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-12 00:51:37,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 60 states have internal predecessors, (74), 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) [2023-11-12 00:51:37,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:51:37,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:37,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:37,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:37,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:37,719 INFO L85 PathProgramCache]: Analyzing trace with hash 7975272, now seen corresponding path program 1 times [2023-11-12 00:51:37,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:37,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883931873] [2023-11-12 00:51:37,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:37,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:37,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:37,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883931873] [2023-11-12 00:51:37,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883931873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:37,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:37,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:51:37,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887866469] [2023-11-12 00:51:37,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:37,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:51:37,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:37,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:51:37,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:51:37,963 INFO L87 Difference]: Start difference. First operand has 67 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 60 states have internal predecessors, (74), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:38,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:38,061 INFO L93 Difference]: Finished difference Result 128 states and 169 transitions. [2023-11-12 00:51:38,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:51:38,064 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 00:51:38,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:38,073 INFO L225 Difference]: With dead ends: 128 [2023-11-12 00:51:38,074 INFO L226 Difference]: Without dead ends: 54 [2023-11-12 00:51:38,079 INFO L412 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 [2023-11-12 00:51:38,083 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:38,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:51:38,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-12 00:51:38,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-12 00:51:38,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 48 states have internal predecessors, (54), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:51:38,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2023-11-12 00:51:38,138 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 8 [2023-11-12 00:51:38,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:38,139 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2023-11-12 00:51:38,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:38,140 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2023-11-12 00:51:38,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:51:38,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:38,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:38,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:51:38,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:38,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:38,147 INFO L85 PathProgramCache]: Analyzing trace with hash 6793218, now seen corresponding path program 1 times [2023-11-12 00:51:38,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:38,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997677702] [2023-11-12 00:51:38,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:38,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:38,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:38,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:38,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997677702] [2023-11-12 00:51:38,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997677702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:38,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:38,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:51:38,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383481767] [2023-11-12 00:51:38,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:38,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:51:38,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:38,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:51:38,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:51:38,269 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:38,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:38,467 INFO L93 Difference]: Finished difference Result 144 states and 176 transitions. [2023-11-12 00:51:38,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:51:38,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 00:51:38,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:38,471 INFO L225 Difference]: With dead ends: 144 [2023-11-12 00:51:38,471 INFO L226 Difference]: Without dead ends: 92 [2023-11-12 00:51:38,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:38,475 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 55 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:38,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 130 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:38,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-12 00:51:38,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 84. [2023-11-12 00:51:38,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 66 states have (on average 1.4545454545454546) internal successors, (96), 77 states have internal predecessors, (96), 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) [2023-11-12 00:51:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 104 transitions. [2023-11-12 00:51:38,496 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 104 transitions. Word has length 8 [2023-11-12 00:51:38,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:38,497 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 104 transitions. [2023-11-12 00:51:38,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:38,498 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 104 transitions. [2023-11-12 00:51:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:51:38,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:38,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:38,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:51:38,502 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:38,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1265970838, now seen corresponding path program 1 times [2023-11-12 00:51:38,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:38,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754737724] [2023-11-12 00:51:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:38,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:38,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:38,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:38,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754737724] [2023-11-12 00:51:38,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754737724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:38,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:38,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:51:38,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048766145] [2023-11-12 00:51:38,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:38,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:51:38,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:38,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:51:38,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:38,646 INFO L87 Difference]: Start difference. First operand 84 states and 104 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:38,839 INFO L93 Difference]: Finished difference Result 185 states and 230 transitions. [2023-11-12 00:51:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:51:38,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-12 00:51:38,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:38,843 INFO L225 Difference]: With dead ends: 185 [2023-11-12 00:51:38,843 INFO L226 Difference]: Without dead ends: 103 [2023-11-12 00:51:38,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:51:38,846 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 82 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:38,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 171 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-12 00:51:38,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 90. [2023-11-12 00:51:38,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 72 states have (on average 1.4166666666666667) internal successors, (102), 83 states have internal predecessors, (102), 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) [2023-11-12 00:51:38,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 110 transitions. [2023-11-12 00:51:38,871 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 110 transitions. Word has length 12 [2023-11-12 00:51:38,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:38,872 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 110 transitions. [2023-11-12 00:51:38,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 110 transitions. [2023-11-12 00:51:38,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:51:38,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:38,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:38,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:51:38,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:38,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:38,877 INFO L85 PathProgramCache]: Analyzing trace with hash -590390202, now seen corresponding path program 1 times [2023-11-12 00:51:38,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:38,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841503143] [2023-11-12 00:51:38,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:38,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:39,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:39,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:39,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841503143] [2023-11-12 00:51:39,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841503143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:39,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:39,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:51:39,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111859590] [2023-11-12 00:51:39,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:39,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:51:39,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:39,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:51:39,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:39,016 INFO L87 Difference]: Start difference. First operand 90 states and 110 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:39,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:39,163 INFO L93 Difference]: Finished difference Result 105 states and 123 transitions. [2023-11-12 00:51:39,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:51:39,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-12 00:51:39,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:39,167 INFO L225 Difference]: With dead ends: 105 [2023-11-12 00:51:39,167 INFO L226 Difference]: Without dead ends: 103 [2023-11-12 00:51:39,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:51:39,180 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 65 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:39,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 173 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:39,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-12 00:51:39,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 90. [2023-11-12 00:51:39,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 83 states have internal predecessors, (101), 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) [2023-11-12 00:51:39,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 109 transitions. [2023-11-12 00:51:39,198 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 109 transitions. Word has length 13 [2023-11-12 00:51:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:39,199 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 109 transitions. [2023-11-12 00:51:39,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 109 transitions. [2023-11-12 00:51:39,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:51:39,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:39,201 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:39,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:51:39,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:39,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:39,202 INFO L85 PathProgramCache]: Analyzing trace with hash 715587309, now seen corresponding path program 1 times [2023-11-12 00:51:39,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:39,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166259182] [2023-11-12 00:51:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:39,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:51:39,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:39,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166259182] [2023-11-12 00:51:39,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166259182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:39,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:39,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:51:39,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262946141] [2023-11-12 00:51:39,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:39,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:39,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:39,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:39,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:39,240 INFO L87 Difference]: Start difference. First operand 90 states and 109 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:39,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:39,288 INFO L93 Difference]: Finished difference Result 94 states and 115 transitions. [2023-11-12 00:51:39,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:39,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-12 00:51:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:39,291 INFO L225 Difference]: With dead ends: 94 [2023-11-12 00:51:39,291 INFO L226 Difference]: Without dead ends: 93 [2023-11-12 00:51:39,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:39,292 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 2 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:39,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 98 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:51:39,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-12 00:51:39,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 87. [2023-11-12 00:51:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 80 states have internal predecessors, (97), 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) [2023-11-12 00:51:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 105 transitions. [2023-11-12 00:51:39,304 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 105 transitions. Word has length 15 [2023-11-12 00:51:39,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:39,305 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 105 transitions. [2023-11-12 00:51:39,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:39,305 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 105 transitions. [2023-11-12 00:51:39,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:51:39,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:39,307 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:39,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:51:39,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:39,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:39,308 INFO L85 PathProgramCache]: Analyzing trace with hash 715880061, now seen corresponding path program 1 times [2023-11-12 00:51:39,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:39,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797109393] [2023-11-12 00:51:39,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:39,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:39,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:39,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:39,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797109393] [2023-11-12 00:51:39,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797109393] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:51:39,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975780304] [2023-11-12 00:51:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:39,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:51:39,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:39,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:51:39,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:51:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:39,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:51:39,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:39,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:39,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:51:39,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975780304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:39,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:51:39,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-12 00:51:39,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330060688] [2023-11-12 00:51:39,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:39,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:51:39,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:39,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:51:39,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:51:39,515 INFO L87 Difference]: Start difference. First operand 87 states and 105 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:39,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:39,588 INFO L93 Difference]: Finished difference Result 102 states and 127 transitions. [2023-11-12 00:51:39,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:51:39,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-12 00:51:39,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:39,590 INFO L225 Difference]: With dead ends: 102 [2023-11-12 00:51:39,590 INFO L226 Difference]: Without dead ends: 101 [2023-11-12 00:51:39,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:51:39,592 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 6 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:39,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 152 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:39,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-12 00:51:39,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2023-11-12 00:51:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 82 states have internal predecessors, (100), 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) [2023-11-12 00:51:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 108 transitions. [2023-11-12 00:51:39,602 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 108 transitions. Word has length 15 [2023-11-12 00:51:39,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:39,603 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 108 transitions. [2023-11-12 00:51:39,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:39,603 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 108 transitions. [2023-11-12 00:51:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:51:39,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:39,605 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:39,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:51:39,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 00:51:39,812 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:39,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:39,812 INFO L85 PathProgramCache]: Analyzing trace with hash 237188788, now seen corresponding path program 1 times [2023-11-12 00:51:39,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:39,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486708190] [2023-11-12 00:51:39,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:39,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:39,882 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:51:39,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:39,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486708190] [2023-11-12 00:51:39,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486708190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:39,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:39,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:51:39,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613313441] [2023-11-12 00:51:39,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:39,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:51:39,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:39,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:51:39,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:51:39,885 INFO L87 Difference]: Start difference. First operand 89 states and 108 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:39,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:39,942 INFO L93 Difference]: Finished difference Result 106 states and 131 transitions. [2023-11-12 00:51:39,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:51:39,943 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-12 00:51:39,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:39,944 INFO L225 Difference]: With dead ends: 106 [2023-11-12 00:51:39,945 INFO L226 Difference]: Without dead ends: 104 [2023-11-12 00:51:39,945 INFO L412 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 [2023-11-12 00:51:39,946 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 10 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:39,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 98 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:51:39,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-12 00:51:39,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 87. [2023-11-12 00:51:39,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 71 states have (on average 1.352112676056338) internal successors, (96), 80 states have internal predecessors, (96), 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) [2023-11-12 00:51:39,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2023-11-12 00:51:39,955 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 17 [2023-11-12 00:51:39,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:39,956 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2023-11-12 00:51:39,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:39,956 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2023-11-12 00:51:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 00:51:39,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:39,958 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:39,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:51:39,958 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:39,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:39,959 INFO L85 PathProgramCache]: Analyzing trace with hash -695303669, now seen corresponding path program 1 times [2023-11-12 00:51:39,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:39,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616179300] [2023-11-12 00:51:39,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:39,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:40,031 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:51:40,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:40,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616179300] [2023-11-12 00:51:40,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616179300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:40,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:40,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:51:40,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191625255] [2023-11-12 00:51:40,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:40,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:51:40,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:40,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:51:40,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:40,035 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:51:40,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:40,151 INFO L93 Difference]: Finished difference Result 128 states and 155 transitions. [2023-11-12 00:51:40,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:51:40,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-12 00:51:40,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:40,155 INFO L225 Difference]: With dead ends: 128 [2023-11-12 00:51:40,155 INFO L226 Difference]: Without dead ends: 126 [2023-11-12 00:51:40,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:51:40,157 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 72 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:40,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 137 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:40,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-12 00:51:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 110. [2023-11-12 00:51:40,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 93 states have (on average 1.3655913978494623) internal successors, (127), 102 states have internal predecessors, (127), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:51:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 135 transitions. [2023-11-12 00:51:40,201 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 135 transitions. Word has length 21 [2023-11-12 00:51:40,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:40,202 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 135 transitions. [2023-11-12 00:51:40,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:51:40,202 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 135 transitions. [2023-11-12 00:51:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 00:51:40,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:40,203 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:40,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 00:51:40,203 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:40,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash -723931025, now seen corresponding path program 1 times [2023-11-12 00:51:40,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:40,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559362120] [2023-11-12 00:51:40,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:40,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:51:40,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:40,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559362120] [2023-11-12 00:51:40,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559362120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:40,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:40,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:51:40,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318538678] [2023-11-12 00:51:40,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:40,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:51:40,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:40,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:51:40,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:40,270 INFO L87 Difference]: Start difference. First operand 110 states and 135 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:51:40,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:40,381 INFO L93 Difference]: Finished difference Result 122 states and 147 transitions. [2023-11-12 00:51:40,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:51:40,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-12 00:51:40,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:40,384 INFO L225 Difference]: With dead ends: 122 [2023-11-12 00:51:40,385 INFO L226 Difference]: Without dead ends: 120 [2023-11-12 00:51:40,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:51:40,388 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 71 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:40,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 139 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:40,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-12 00:51:40,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2023-11-12 00:51:40,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 97 states have internal predecessors, (119), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:51:40,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 127 transitions. [2023-11-12 00:51:40,410 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 127 transitions. Word has length 21 [2023-11-12 00:51:40,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:40,412 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 127 transitions. [2023-11-12 00:51:40,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:51:40,412 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 127 transitions. [2023-11-12 00:51:40,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-12 00:51:40,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:40,416 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:40,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 00:51:40,416 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:40,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:40,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1115916260, now seen corresponding path program 1 times [2023-11-12 00:51:40,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:40,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543859833] [2023-11-12 00:51:40,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:40,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 00:51:40,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:40,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543859833] [2023-11-12 00:51:40,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543859833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:40,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:40,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:51:40,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985734368] [2023-11-12 00:51:40,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:40,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:51:40,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:40,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:51:40,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:40,526 INFO L87 Difference]: Start difference. First operand 105 states and 127 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 00:51:40,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:40,634 INFO L93 Difference]: Finished difference Result 117 states and 142 transitions. [2023-11-12 00:51:40,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:51:40,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-11-12 00:51:40,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:40,638 INFO L225 Difference]: With dead ends: 117 [2023-11-12 00:51:40,639 INFO L226 Difference]: Without dead ends: 115 [2023-11-12 00:51:40,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:51:40,640 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 70 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:40,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 130 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:40,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-12 00:51:40,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 101. [2023-11-12 00:51:40,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 93 states have internal predecessors, (114), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:51:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 122 transitions. [2023-11-12 00:51:40,651 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 122 transitions. Word has length 27 [2023-11-12 00:51:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:40,651 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 122 transitions. [2023-11-12 00:51:40,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 00:51:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 122 transitions. [2023-11-12 00:51:40,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-12 00:51:40,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:40,652 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:40,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 00:51:40,653 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:40,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:40,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1087288904, now seen corresponding path program 1 times [2023-11-12 00:51:40,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:40,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14823736] [2023-11-12 00:51:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:40,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 00:51:40,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:40,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14823736] [2023-11-12 00:51:40,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14823736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:40,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:40,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:51:40,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976374628] [2023-11-12 00:51:40,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:40,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:51:40,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:40,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:51:40,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:40,724 INFO L87 Difference]: Start difference. First operand 101 states and 122 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 00:51:40,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:40,832 INFO L93 Difference]: Finished difference Result 111 states and 134 transitions. [2023-11-12 00:51:40,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:51:40,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-11-12 00:51:40,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:40,834 INFO L225 Difference]: With dead ends: 111 [2023-11-12 00:51:40,835 INFO L226 Difference]: Without dead ends: 109 [2023-11-12 00:51:40,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:51:40,836 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 69 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:40,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 130 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:40,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-12 00:51:40,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 94. [2023-11-12 00:51:40,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 81 states have (on average 1.308641975308642) internal successors, (106), 86 states have internal predecessors, (106), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:51:40,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 114 transitions. [2023-11-12 00:51:40,845 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 114 transitions. Word has length 27 [2023-11-12 00:51:40,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:40,846 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 114 transitions. [2023-11-12 00:51:40,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 00:51:40,846 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 114 transitions. [2023-11-12 00:51:40,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-12 00:51:40,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:40,852 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:40,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 00:51:40,852 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:40,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:40,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1726960668, now seen corresponding path program 1 times [2023-11-12 00:51:40,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:40,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866588142] [2023-11-12 00:51:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:40,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:40,988 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 00:51:40,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:40,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866588142] [2023-11-12 00:51:40,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866588142] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:51:40,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240278175] [2023-11-12 00:51:40,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:40,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:51:40,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:40,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:51:41,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:51:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:41,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-12 00:51:41,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 00:51:41,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:51:41,614 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:51:41,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240278175] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 00:51:41,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-12 00:51:41,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 10] total 16 [2023-11-12 00:51:41,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125336222] [2023-11-12 00:51:41,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:41,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:51:41,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:41,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:51:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-12 00:51:41,616 INFO L87 Difference]: Start difference. First operand 94 states and 114 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:51:41,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:41,700 INFO L93 Difference]: Finished difference Result 122 states and 142 transitions. [2023-11-12 00:51:41,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:51:41,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2023-11-12 00:51:41,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:41,702 INFO L225 Difference]: With dead ends: 122 [2023-11-12 00:51:41,702 INFO L226 Difference]: Without dead ends: 98 [2023-11-12 00:51:41,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-11-12 00:51:41,703 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 1 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:41,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 238 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:41,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-12 00:51:41,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2023-11-12 00:51:41,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 81 states have (on average 1.2839506172839505) internal successors, (104), 86 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:51:41,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2023-11-12 00:51:41,712 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 31 [2023-11-12 00:51:41,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:41,712 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2023-11-12 00:51:41,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:51:41,713 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2023-11-12 00:51:41,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 00:51:41,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:41,713 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-12 00:51:41,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:51:41,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 00:51:41,919 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:41,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:41,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1315572115, now seen corresponding path program 1 times [2023-11-12 00:51:41,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:41,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406458647] [2023-11-12 00:51:41,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:41,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:42,024 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 00:51:42,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:42,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406458647] [2023-11-12 00:51:42,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406458647] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:51:42,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755610909] [2023-11-12 00:51:42,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:42,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:51:42,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:42,027 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:51:42,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:51:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:42,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-12 00:51:42,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:42,234 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 00:51:42,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:51:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:51:42,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755610909] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:51:42,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [747145481] [2023-11-12 00:51:42,637 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2023-11-12 00:51:42,637 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:51:42,641 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:51:42,647 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:51:42,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:51:42,882 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 43 for LOIs [2023-11-12 00:51:43,088 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:51:44,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [747145481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:44,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:51:44,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 12, 8] total 28 [2023-11-12 00:51:44,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274452603] [2023-11-12 00:51:44,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:44,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 00:51:44,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:44,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 00:51:44,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2023-11-12 00:51:44,111 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 10 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-12 00:51:44,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:44,394 INFO L93 Difference]: Finished difference Result 208 states and 247 transitions. [2023-11-12 00:51:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:51:44,395 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 35 [2023-11-12 00:51:44,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:44,396 INFO L225 Difference]: With dead ends: 208 [2023-11-12 00:51:44,396 INFO L226 Difference]: Without dead ends: 116 [2023-11-12 00:51:44,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2023-11-12 00:51:44,398 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 63 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:44,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 260 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:51:44,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-12 00:51:44,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 88. [2023-11-12 00:51:44,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 80 states have internal predecessors, (93), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-12 00:51:44,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 102 transitions. [2023-11-12 00:51:44,410 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 102 transitions. Word has length 35 [2023-11-12 00:51:44,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:44,411 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 102 transitions. [2023-11-12 00:51:44,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-12 00:51:44,411 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 102 transitions. [2023-11-12 00:51:44,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 00:51:44,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:44,412 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:44,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:51:44,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-12 00:51:44,624 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:44,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:44,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1238796034, now seen corresponding path program 1 times [2023-11-12 00:51:44,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:44,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496215222] [2023-11-12 00:51:44,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:44,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 00:51:44,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:44,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496215222] [2023-11-12 00:51:44,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496215222] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:51:44,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17916017] [2023-11-12 00:51:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:44,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:51:44,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:44,996 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:51:45,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:51:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:45,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-12 00:51:45,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:45,220 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 00:51:45,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:51:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-12 00:51:45,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17916017] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:51:45,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1913782850] [2023-11-12 00:51:45,577 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2023-11-12 00:51:45,577 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:51:45,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:51:45,578 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:51:45,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:51:46,706 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 11 for LOIs [2023-11-12 00:51:46,828 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:51:49,199 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4156#(or (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (= (+ |ULTIMATE.start_main_~sb~0#1| 1) 0) (<= |ULTIMATE.start_main_~ea~2#1| 127)) (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (= |ULTIMATE.start_main_~sb~0#1| 1) (= |ULTIMATE.start_main_~tmp~2#1| 1) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) (and (= |ULTIMATE.start_main_~sb~0#1| 0) (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (= 0 |ULTIMATE.start_main_~tmp~2#1|) (<= |ULTIMATE.start_main_~ea~2#1| 127)))' at error location [2023-11-12 00:51:49,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:51:49,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:51:49,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 8] total 21 [2023-11-12 00:51:49,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859366627] [2023-11-12 00:51:49,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:51:49,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-12 00:51:49,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:49,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-12 00:51:49,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1181, Unknown=0, NotChecked=0, Total=1332 [2023-11-12 00:51:49,203 INFO L87 Difference]: Start difference. First operand 88 states and 102 transitions. Second operand has 21 states, 16 states have (on average 3.5) internal successors, (56), 17 states have internal predecessors, (56), 4 states have call successors, (7), 1 states have call predecessors, (7), 6 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-12 00:51:49,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:49,837 INFO L93 Difference]: Finished difference Result 247 states and 286 transitions. [2023-11-12 00:51:49,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-12 00:51:49,837 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 3.5) internal successors, (56), 17 states have internal predecessors, (56), 4 states have call successors, (7), 1 states have call predecessors, (7), 6 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 44 [2023-11-12 00:51:49,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:49,839 INFO L225 Difference]: With dead ends: 247 [2023-11-12 00:51:49,839 INFO L226 Difference]: Without dead ends: 142 [2023-11-12 00:51:49,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 101 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=287, Invalid=2365, Unknown=0, NotChecked=0, Total=2652 [2023-11-12 00:51:49,842 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 66 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:49,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 395 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:51:49,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-12 00:51:49,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 90. [2023-11-12 00:51:49,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 81 states have internal predecessors, (92), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:51:49,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 100 transitions. [2023-11-12 00:51:49,854 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 100 transitions. Word has length 44 [2023-11-12 00:51:49,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:49,854 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 100 transitions. [2023-11-12 00:51:49,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 3.5) internal successors, (56), 17 states have internal predecessors, (56), 4 states have call successors, (7), 1 states have call predecessors, (7), 6 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-12 00:51:49,855 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2023-11-12 00:51:49,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 00:51:49,856 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:49,856 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:49,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:51:50,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:51:50,062 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:50,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:50,062 INFO L85 PathProgramCache]: Analyzing trace with hash -2122365718, now seen corresponding path program 1 times [2023-11-12 00:51:50,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:50,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443557327] [2023-11-12 00:51:50,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:50,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:50,268 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-12 00:51:50,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:50,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443557327] [2023-11-12 00:51:50,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443557327] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:51:50,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663026320] [2023-11-12 00:51:50,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:50,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:51:50,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:50,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:51:50,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 00:51:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:50,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:51:50,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:50,422 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 00:51:50,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:51:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-12 00:51:50,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663026320] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:51:50,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1331116454] [2023-11-12 00:51:50,601 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-11-12 00:51:50,601 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:51:50,602 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:51:50,602 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:51:50,602 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:51:53,836 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 11 for LOIs [2023-11-12 00:51:53,977 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:51:56,981 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4910#(or (and (= |ULTIMATE.start_main_~sb~0#1| 0) (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_mulflt_~b#1| 4294967295) (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_mulflt_#in~b#1| 4294967295) (<= 0 |ULTIMATE.start_mulflt_~b#1|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 |ULTIMATE.start_mulflt_~a#1|) (<= |ULTIMATE.start_main_~one~0#1| 4294967295) (<= |ULTIMATE.start_main_~a~0#1| 4294967295) (<= 0 |ULTIMATE.start_main_~zero~0#1|) (<= 0 |ULTIMATE.start_mulflt_#in~a#1|) (<= 0 |ULTIMATE.start_main_~one~0#1|) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= 0 |ULTIMATE.start_main_~a~0#1|) (= 0 |ULTIMATE.start_main_~tmp~2#1|) (<= |ULTIMATE.start_main_~zero~0#1| 4294967295) (<= |ULTIMATE.start_mulflt_~a#1| 4294967295) (<= |ULTIMATE.start_main_~b~0#1| 4294967295) (<= |ULTIMATE.start_main_~ea~2#1| 127) (<= 0 |ULTIMATE.start_mulflt_#in~b#1|) (<= |ULTIMATE.start_mulflt_#in~a#1| 4294967295)) (and (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_mulflt_~b#1| 4294967295) (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_mulflt_#in~b#1| 4294967295) (<= 0 |ULTIMATE.start_mulflt_~b#1|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 |ULTIMATE.start_mulflt_~a#1|) (<= |ULTIMATE.start_main_~one~0#1| 4294967295) (<= |ULTIMATE.start_main_~a~0#1| 4294967295) (<= 0 |ULTIMATE.start_main_~zero~0#1|) (<= 0 |ULTIMATE.start_mulflt_#in~a#1|) (<= 0 |ULTIMATE.start_main_~one~0#1|) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~zero~0#1| 4294967295) (<= |ULTIMATE.start_mulflt_~a#1| 4294967295) (<= |ULTIMATE.start_main_~b~0#1| 4294967295) (= (+ |ULTIMATE.start_main_~sb~0#1| 1) 0) (<= |ULTIMATE.start_main_~ea~2#1| 127) (<= 0 |ULTIMATE.start_mulflt_#in~b#1|) (<= |ULTIMATE.start_mulflt_#in~a#1| 4294967295)) (and (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_mulflt_~b#1| 4294967295) (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_mulflt_#in~b#1| 4294967295) (<= 0 |ULTIMATE.start_mulflt_~b#1|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (= |ULTIMATE.start_main_~sb~0#1| 1) (<= 0 |ULTIMATE.start_mulflt_~a#1|) (<= |ULTIMATE.start_main_~one~0#1| 4294967295) (<= |ULTIMATE.start_main_~a~0#1| 4294967295) (<= 0 |ULTIMATE.start_main_~zero~0#1|) (<= 0 |ULTIMATE.start_mulflt_#in~a#1|) (<= 0 |ULTIMATE.start_main_~one~0#1|) (= |ULTIMATE.start_main_~tmp~2#1| 1) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~zero~0#1| 4294967295) (<= |ULTIMATE.start_mulflt_~a#1| 4294967295) (<= |ULTIMATE.start_main_~b~0#1| 4294967295) (<= |ULTIMATE.start_main_~ea~2#1| 127) (<= 0 |ULTIMATE.start_mulflt_#in~b#1|) (<= |ULTIMATE.start_mulflt_#in~a#1| 4294967295)))' at error location [2023-11-12 00:51:56,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:51:56,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:51:56,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-11-12 00:51:56,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184157890] [2023-11-12 00:51:56,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:51:56,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 00:51:56,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:56,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 00:51:56,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1001, Unknown=0, NotChecked=0, Total=1190 [2023-11-12 00:51:56,985 INFO L87 Difference]: Start difference. First operand 90 states and 100 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 00:51:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:57,309 INFO L93 Difference]: Finished difference Result 334 states and 373 transitions. [2023-11-12 00:51:57,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 00:51:57,310 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-11-12 00:51:57,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:57,313 INFO L225 Difference]: With dead ends: 334 [2023-11-12 00:51:57,313 INFO L226 Difference]: Without dead ends: 268 [2023-11-12 00:51:57,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 126 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=228, Invalid=1178, Unknown=0, NotChecked=0, Total=1406 [2023-11-12 00:51:57,315 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 78 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:57,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 203 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:51:57,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-12 00:51:57,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 110. [2023-11-12 00:51:57,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 96 states have (on average 1.2083333333333333) internal successors, (116), 101 states have internal predecessors, (116), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:51:57,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2023-11-12 00:51:57,335 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 52 [2023-11-12 00:51:57,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:57,335 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2023-11-12 00:51:57,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 00:51:57,336 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2023-11-12 00:51:57,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-12 00:51:57,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:57,337 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:57,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 00:51:57,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:51:57,544 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:57,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:57,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1486606063, now seen corresponding path program 1 times [2023-11-12 00:51:57,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:57,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983604006] [2023-11-12 00:51:57,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:57,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:57,894 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-12 00:51:57,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:57,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983604006] [2023-11-12 00:51:57,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983604006] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:51:57,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139458587] [2023-11-12 00:51:57,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:57,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:51:57,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:57,897 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:51:57,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 00:51:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:58,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-12 00:51:58,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:51:58,200 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-12 00:51:58,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:51:58,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139458587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:58,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:51:58,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 15 [2023-11-12 00:51:58,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622336236] [2023-11-12 00:51:58,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:58,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 00:51:58,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:58,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 00:51:58,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-12 00:51:58,203 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand has 10 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 00:51:58,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:58,454 INFO L93 Difference]: Finished difference Result 160 states and 174 transitions. [2023-11-12 00:51:58,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:51:58,456 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2023-11-12 00:51:58,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:58,457 INFO L225 Difference]: With dead ends: 160 [2023-11-12 00:51:58,457 INFO L226 Difference]: Without dead ends: 157 [2023-11-12 00:51:58,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-11-12 00:51:58,458 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 76 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:58,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 320 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:51:58,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-12 00:51:58,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 131. [2023-11-12 00:51:58,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 120 states have internal predecessors, (136), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-12 00:51:58,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 149 transitions. [2023-11-12 00:51:58,475 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 149 transitions. Word has length 53 [2023-11-12 00:51:58,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:58,475 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 149 transitions. [2023-11-12 00:51:58,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 00:51:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 149 transitions. [2023-11-12 00:51:58,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-12 00:51:58,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:58,477 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:58,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 00:51:58,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-12 00:51:58,684 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:58,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:58,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1159852502, now seen corresponding path program 1 times [2023-11-12 00:51:58,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:58,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785959797] [2023-11-12 00:51:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:58,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-12 00:51:58,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:58,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785959797] [2023-11-12 00:51:58,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785959797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:58,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:58,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:51:58,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623964720] [2023-11-12 00:51:58,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:58,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:51:58,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:58,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:51:58,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:58,972 INFO L87 Difference]: Start difference. First operand 131 states and 149 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:51:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:59,051 INFO L93 Difference]: Finished difference Result 131 states and 149 transitions. [2023-11-12 00:51:59,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:51:59,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 54 [2023-11-12 00:51:59,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:59,053 INFO L225 Difference]: With dead ends: 131 [2023-11-12 00:51:59,053 INFO L226 Difference]: Without dead ends: 123 [2023-11-12 00:51:59,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:51:59,054 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 10 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:59,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 140 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:59,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-12 00:51:59,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-11-12 00:51:59,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 108 states have (on average 1.1666666666666667) internal successors, (126), 112 states have internal predecessors, (126), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-12 00:51:59,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 139 transitions. [2023-11-12 00:51:59,073 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 139 transitions. Word has length 54 [2023-11-12 00:51:59,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:59,074 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 139 transitions. [2023-11-12 00:51:59,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:51:59,075 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 139 transitions. [2023-11-12 00:51:59,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-12 00:51:59,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:59,076 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:59,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-12 00:51:59,076 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:59,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:59,077 INFO L85 PathProgramCache]: Analyzing trace with hash -2025471693, now seen corresponding path program 1 times [2023-11-12 00:51:59,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:59,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514621255] [2023-11-12 00:51:59,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:59,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:59,520 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-12 00:51:59,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:59,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514621255] [2023-11-12 00:51:59,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514621255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:59,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:59,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:51:59,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588398388] [2023-11-12 00:51:59,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:59,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:51:59,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:59,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:51:59,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:51:59,523 INFO L87 Difference]: Start difference. First operand 123 states and 139 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:51:59,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:59,588 INFO L93 Difference]: Finished difference Result 123 states and 139 transitions. [2023-11-12 00:51:59,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:51:59,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2023-11-12 00:51:59,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:59,590 INFO L225 Difference]: With dead ends: 123 [2023-11-12 00:51:59,590 INFO L226 Difference]: Without dead ends: 116 [2023-11-12 00:51:59,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:51:59,591 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 6 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:59,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 141 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:51:59,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-12 00:51:59,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2023-11-12 00:51:59,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 102 states have (on average 1.1568627450980393) internal successors, (118), 104 states have internal predecessors, (118), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-12 00:51:59,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 131 transitions. [2023-11-12 00:51:59,606 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 131 transitions. Word has length 55 [2023-11-12 00:51:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:59,607 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 131 transitions. [2023-11-12 00:51:59,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:51:59,607 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 131 transitions. [2023-11-12 00:51:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 00:51:59,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:59,608 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:59,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-12 00:51:59,609 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:51:59,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:59,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2073236104, now seen corresponding path program 1 times [2023-11-12 00:51:59,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:59,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656660082] [2023-11-12 00:51:59,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:59,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:59,856 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-12 00:51:59,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:59,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656660082] [2023-11-12 00:51:59,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656660082] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:51:59,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600064652] [2023-11-12 00:51:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:59,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:51:59,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:59,859 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:51:59,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 00:52:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:00,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-12 00:52:00,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-12 00:52:00,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:00,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600064652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:00,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:52:00,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 16 [2023-11-12 00:52:00,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743387531] [2023-11-12 00:52:00,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:00,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 00:52:00,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:00,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 00:52:00,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-12 00:52:00,254 INFO L87 Difference]: Start difference. First operand 115 states and 131 transitions. Second operand has 11 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 00:52:00,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:00,525 INFO L93 Difference]: Finished difference Result 129 states and 143 transitions. [2023-11-12 00:52:00,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 00:52:00,526 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-12 00:52:00,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:00,527 INFO L225 Difference]: With dead ends: 129 [2023-11-12 00:52:00,527 INFO L226 Difference]: Without dead ends: 118 [2023-11-12 00:52:00,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2023-11-12 00:52:00,529 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 35 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:00,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 314 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:52:00,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-12 00:52:00,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2023-11-12 00:52:00,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 93 states have (on average 1.1720430107526882) internal successors, (109), 96 states have internal predecessors, (109), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-12 00:52:00,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2023-11-12 00:52:00,544 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 56 [2023-11-12 00:52:00,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:00,544 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2023-11-12 00:52:00,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 00:52:00,544 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2023-11-12 00:52:00,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-12 00:52:00,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:00,545 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:00,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 00:52:00,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:52:00,755 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:52:00,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:00,757 INFO L85 PathProgramCache]: Analyzing trace with hash -858105515, now seen corresponding path program 1 times [2023-11-12 00:52:00,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:00,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105278970] [2023-11-12 00:52:00,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:00,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-12 00:52:00,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:00,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105278970] [2023-11-12 00:52:00,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105278970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:00,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:00,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:52:00,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357553427] [2023-11-12 00:52:00,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:00,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:52:00,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:00,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:52:00,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:52:00,858 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:52:00,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:00,911 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2023-11-12 00:52:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:52:00,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2023-11-12 00:52:00,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:00,913 INFO L225 Difference]: With dead ends: 106 [2023-11-12 00:52:00,913 INFO L226 Difference]: Without dead ends: 105 [2023-11-12 00:52:00,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:52:00,915 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:00,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 101 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:52:00,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-12 00:52:00,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-11-12 00:52:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 93 states have (on average 1.1612903225806452) internal successors, (108), 95 states have internal predecessors, (108), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-12 00:52:00,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2023-11-12 00:52:00,935 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 57 [2023-11-12 00:52:00,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:00,936 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2023-11-12 00:52:00,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:52:00,936 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2023-11-12 00:52:00,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 00:52:00,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:00,937 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:00,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-12 00:52:00,938 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 00:52:00,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:00,938 INFO L85 PathProgramCache]: Analyzing trace with hash -831466986, now seen corresponding path program 1 times [2023-11-12 00:52:00,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:00,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794574367] [2023-11-12 00:52:00,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:00,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:01,511 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-12 00:52:01,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:01,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794574367] [2023-11-12 00:52:01,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794574367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:01,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:01,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:52:01,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494542652] [2023-11-12 00:52:01,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:01,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:52:01,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:01,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:52:01,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:52:01,514 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:52:01,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:01,575 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2023-11-12 00:52:01,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:52:01,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2023-11-12 00:52:01,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:01,577 INFO L225 Difference]: With dead ends: 105 [2023-11-12 00:52:01,577 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:52:01,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:52:01,578 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:01,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 131 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:52:01,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:52:01,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:52:01,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:52:01,579 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2023-11-12 00:52:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:01,580 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:52:01,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:52:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:52:01,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:52:01,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-12 00:52:01,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-12 00:52:01,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-12 00:52:01,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-12 00:52:01,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-11-12 00:52:01,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-11-12 00:52:01,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-11-12 00:52:01,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-11-12 00:52:01,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-12 00:52:01,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-12 00:52:01,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-12 00:52:01,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-12 00:52:01,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-12 00:52:01,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-12 00:52:01,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-12 00:52:01,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-12 00:52:01,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-12 00:52:01,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:52:02,749 INFO L899 garLoopResultBuilder]: For program point base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-12 00:52:02,749 INFO L899 garLoopResultBuilder]: For program point base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2023-11-12 00:52:02,750 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-11-12 00:52:02,750 INFO L899 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2023-11-12 00:52:02,750 INFO L895 garLoopResultBuilder]: At program point L57-2(lines 57 72) the Hoare annotation is: (let ((.cse0 (< 127 |base2flt_#in~e|)) (.cse1 (< (+ 128 |base2flt_#in~e|) 0))) (and (or .cse0 .cse1 (and (<= base2flt_~e 127) (not (= |base2flt_#in~m| 1)))) (let ((.cse2 (select |#memory_int| 1))) (or (not (= (select .cse2 0) 48)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse2 1) 0)) (not (= 22 (select |#length| 2))) (not (= (select |#valid| 1) 1)) (not (= |base2flt_#in~m| 0)) (< |#StackHeapBarrier| 1) (not (= (select |#valid| 2) 1)) (not (= |base2flt_#in~e| 0)))) (or (<= |base2flt_#in~e| base2flt_~e) .cse0 .cse1))) [2023-11-12 00:52:02,750 INFO L899 garLoopResultBuilder]: For program point $Ultimate##27(line 76) no Hoare annotation was computed. [2023-11-12 00:52:02,751 INFO L899 garLoopResultBuilder]: For program point base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2023-11-12 00:52:02,751 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-12 00:52:02,751 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-12 00:52:02,751 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-11-12 00:52:02,751 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2023-11-12 00:52:02,751 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 34) no Hoare annotation was computed. [2023-11-12 00:52:02,751 INFO L899 garLoopResultBuilder]: For program point L58(lines 57 72) no Hoare annotation was computed. [2023-11-12 00:52:02,751 INFO L899 garLoopResultBuilder]: For program point base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2023-11-12 00:52:02,752 INFO L899 garLoopResultBuilder]: For program point L79(lines 28 81) no Hoare annotation was computed. [2023-11-12 00:52:02,752 INFO L899 garLoopResultBuilder]: For program point base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2023-11-12 00:52:02,752 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 24 82) the Hoare annotation is: true [2023-11-12 00:52:02,752 INFO L899 garLoopResultBuilder]: For program point L38(lines 37 52) no Hoare annotation was computed. [2023-11-12 00:52:02,752 INFO L899 garLoopResultBuilder]: For program point L59(lines 57 72) no Hoare annotation was computed. [2023-11-12 00:52:02,752 INFO L899 garLoopResultBuilder]: For program point base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-12 00:52:02,752 INFO L899 garLoopResultBuilder]: For program point base2fltEXIT(lines 24 82) no Hoare annotation was computed. [2023-11-12 00:52:02,752 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 51) no Hoare annotation was computed. [2023-11-12 00:52:02,753 INFO L895 garLoopResultBuilder]: At program point L47-1(lines 37 52) the Hoare annotation is: (let ((.cse12 (select |#memory_int| 1))) (let ((.cse0 (not (= (select .cse12 0) 48))) (.cse1 (not (= 2 (select |#length| 1)))) (.cse2 (not (= (select |#valid| 3) 1))) (.cse3 (not (= (select |#length| 3) 12))) (.cse4 (not (= (select |#valid| 0) 0))) (.cse5 (not (= (select .cse12 1) 0))) (.cse6 (not (= 22 (select |#length| 2)))) (.cse7 (not (= (select |#valid| 1) 1))) (.cse8 (let ((.cse11 (< |#StackHeapBarrier| 1))) (and (or .cse11 (not (= |base2flt_#in~m| 1))) (or (not (= |base2flt_#in~m| 0)) .cse11)))) (.cse9 (not (= (select |#valid| 2) 1))) (.cse10 (not (= |base2flt_#in~e| 0)))) (and (or (< 127 |base2flt_#in~e|) (< (+ 128 |base2flt_#in~e|) 0) (<= base2flt_~e 127)) (or .cse0 .cse1 (and (= base2flt_~m 1) (= base2flt_~e 0)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (and (<= 0 (+ 128 base2flt_~e)) (<= (+ base2flt_~e 1) 0)) .cse9 .cse10) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (< 0 (mod |base2flt_#in~m| 4294967296)) .cse7 .cse8 .cse9 .cse10)))) [2023-11-12 00:52:02,753 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 75) no Hoare annotation was computed. [2023-11-12 00:52:02,753 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 175) no Hoare annotation was computed. [2023-11-12 00:52:02,753 INFO L899 garLoopResultBuilder]: For program point L201(line 201) no Hoare annotation was computed. [2023-11-12 00:52:02,753 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 178) no Hoare annotation was computed. [2023-11-12 00:52:02,753 INFO L899 garLoopResultBuilder]: For program point L201-1(line 201) no Hoare annotation was computed. [2023-11-12 00:52:02,753 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 172) no Hoare annotation was computed. [2023-11-12 00:52:02,754 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 190) no Hoare annotation was computed. [2023-11-12 00:52:02,754 INFO L899 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2023-11-12 00:52:02,754 INFO L899 garLoopResultBuilder]: For program point L177-1(line 177) no Hoare annotation was computed. [2023-11-12 00:52:02,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 201) no Hoare annotation was computed. [2023-11-12 00:52:02,754 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 211) no Hoare annotation was computed. [2023-11-12 00:52:02,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 172) no Hoare annotation was computed. [2023-11-12 00:52:02,754 INFO L899 garLoopResultBuilder]: For program point L194-2(lines 194 211) no Hoare annotation was computed. [2023-11-12 00:52:02,754 INFO L899 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2023-11-12 00:52:02,754 INFO L899 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2023-11-12 00:52:02,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 201) no Hoare annotation was computed. [2023-11-12 00:52:02,755 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 208) no Hoare annotation was computed. [2023-11-12 00:52:02,755 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:52:02,755 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 200) no Hoare annotation was computed. [2023-11-12 00:52:02,755 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 184) no Hoare annotation was computed. [2023-11-12 00:52:02,755 INFO L895 garLoopResultBuilder]: At program point L238(line 238) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (= 22 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~ea~2#1| 127) (= (select .cse0 1) 0))) [2023-11-12 00:52:02,755 INFO L899 garLoopResultBuilder]: For program point L238-1(line 238) no Hoare annotation was computed. [2023-11-12 00:52:02,755 INFO L899 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2023-11-12 00:52:02,756 INFO L899 garLoopResultBuilder]: For program point L172-1(line 172) no Hoare annotation was computed. [2023-11-12 00:52:02,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 177) no Hoare annotation was computed. [2023-11-12 00:52:02,756 INFO L895 garLoopResultBuilder]: At program point L239(line 239) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (= 22 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~ea~2#1| 127) (= (select .cse0 1) 0))) [2023-11-12 00:52:02,756 INFO L899 garLoopResultBuilder]: For program point L239-1(line 239) no Hoare annotation was computed. [2023-11-12 00:52:02,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:52:02,756 INFO L899 garLoopResultBuilder]: For program point L256(lines 256 272) no Hoare annotation was computed. [2023-11-12 00:52:02,756 INFO L899 garLoopResultBuilder]: For program point L256-1(lines 256 272) no Hoare annotation was computed. [2023-11-12 00:52:02,757 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 177) no Hoare annotation was computed. [2023-11-12 00:52:02,757 INFO L895 garLoopResultBuilder]: At program point L240(line 240) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (= 22 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~ea~2#1| 127) (= (select .cse0 1) 0))) [2023-11-12 00:52:02,757 INFO L899 garLoopResultBuilder]: For program point L240-1(line 240) no Hoare annotation was computed. [2023-11-12 00:52:02,757 INFO L902 garLoopResultBuilder]: At program point L257-2(lines 257 266) the Hoare annotation is: true [2023-11-12 00:52:02,757 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 175) no Hoare annotation was computed. [2023-11-12 00:52:02,757 INFO L899 garLoopResultBuilder]: For program point L158-2(lines 157 218) no Hoare annotation was computed. [2023-11-12 00:52:02,757 INFO L899 garLoopResultBuilder]: For program point L216(lines 157 218) no Hoare annotation was computed. [2023-11-12 00:52:02,758 INFO L895 garLoopResultBuilder]: At program point L241(line 241) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (= 22 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~ea~2#1| 127) (= (select .cse0 1) 0))) [2023-11-12 00:52:02,758 INFO L899 garLoopResultBuilder]: For program point L241-1(line 241) no Hoare annotation was computed. [2023-11-12 00:52:02,758 INFO L899 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2023-11-12 00:52:02,758 INFO L899 garLoopResultBuilder]: For program point L175-1(line 175) no Hoare annotation was computed. [2023-11-12 00:52:02,758 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 178) no Hoare annotation was computed. [2023-11-12 00:52:02,758 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 15 20) no Hoare annotation was computed. [2023-11-12 00:52:02,759 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 15 20) the Hoare annotation is: true [2023-11-12 00:52:02,764 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:02,766 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:52:02,784 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,785 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,786 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,786 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,786 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,786 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,787 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,787 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,787 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:02,788 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,788 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,788 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,788 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,789 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,789 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,789 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,790 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,790 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:02,791 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,792 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,792 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,792 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,792 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,793 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,793 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,793 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,794 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:02,794 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,794 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,795 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,795 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,795 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,795 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,796 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,796 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,796 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:02,798 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,798 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,798 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,799 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,799 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,799 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,799 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,800 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,800 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:02,801 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,801 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,801 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,802 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,802 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,802 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,802 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,803 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,803 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:02,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:52:02 BoogieIcfgContainer [2023-11-12 00:52:02,804 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:52:02,805 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:52:02,805 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:52:02,805 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:52:02,806 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:37" (3/4) ... [2023-11-12 00:52:02,808 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:52:02,812 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure base2flt [2023-11-12 00:52:02,812 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-12 00:52:02,821 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2023-11-12 00:52:02,822 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-12 00:52:02,822 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:52:02,823 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:52:02,853 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((127 < \old(e)) || ((128 + \old(e)) < 0)) || (e <= 127)) [2023-11-12 00:52:02,853 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((127 < \old(e)) || ((128 + \old(e)) < 0)) || ((e <= 127) && !((\old(m) == 1)))) && (((\old(e) <= e) || (127 < \old(e))) || ((128 + \old(e)) < 0))) [2023-11-12 00:52:02,886 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((127 < \old(e)) || ((128 + \old(e)) < 0)) || (e <= 127)) [2023-11-12 00:52:02,886 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((127 < \old(e)) || ((128 + \old(e)) < 0)) || ((e <= 127) && !((\old(m) == 1)))) && (((\old(e) <= e) || (127 < \old(e))) || ((128 + \old(e)) < 0))) [2023-11-12 00:52:02,928 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:52:02,929 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:52:02,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:52:02,930 INFO L158 Benchmark]: Toolchain (without parser) took 26767.17ms. Allocated memory was 157.3MB in the beginning and 346.0MB in the end (delta: 188.7MB). Free memory was 111.1MB in the beginning and 251.3MB in the end (delta: -140.2MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2023-11-12 00:52:02,930 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 115.3MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:02,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.22ms. Allocated memory is still 157.3MB. Free memory was 111.1MB in the beginning and 97.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:52:02,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.69ms. Allocated memory is still 157.3MB. Free memory was 97.4MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:52:02,932 INFO L158 Benchmark]: Boogie Preprocessor took 32.52ms. Allocated memory is still 157.3MB. Free memory was 95.4MB in the beginning and 93.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:52:02,932 INFO L158 Benchmark]: RCFGBuilder took 965.85ms. Allocated memory is still 157.3MB. Free memory was 93.7MB in the beginning and 112.3MB in the end (delta: -18.5MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2023-11-12 00:52:02,933 INFO L158 Benchmark]: TraceAbstraction took 25190.68ms. Allocated memory was 157.3MB in the beginning and 346.0MB in the end (delta: 188.7MB). Free memory was 111.7MB in the beginning and 258.6MB in the end (delta: -146.9MB). Peak memory consumption was 193.8MB. Max. memory is 16.1GB. [2023-11-12 00:52:02,933 INFO L158 Benchmark]: Witness Printer took 124.78ms. Allocated memory is still 346.0MB. Free memory was 258.6MB in the beginning and 251.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:52:02,935 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 115.3MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.22ms. Allocated memory is still 157.3MB. Free memory was 111.1MB in the beginning and 97.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.69ms. Allocated memory is still 157.3MB. Free memory was 97.4MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.52ms. Allocated memory is still 157.3MB. Free memory was 95.4MB in the beginning and 93.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 965.85ms. Allocated memory is still 157.3MB. Free memory was 93.7MB in the beginning and 112.3MB in the end (delta: -18.5MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * TraceAbstraction took 25190.68ms. Allocated memory was 157.3MB in the beginning and 346.0MB in the end (delta: 188.7MB). Free memory was 111.7MB in the beginning and 258.6MB in the end (delta: -146.9MB). Peak memory consumption was 193.8MB. Max. memory is 16.1GB. * Witness Printer took 124.78ms. Allocated memory is still 346.0MB. Free memory was 258.6MB in the beginning and 251.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 172]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 172]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 175]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 175]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 177]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 177]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 178]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 178]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 201]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 201]: 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, 67 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 25.1s, OverallIterations: 21, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 866 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 845 mSDsluCounter, 3667 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2747 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1871 IncrementalHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 920 mSDtfsCounter, 1871 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 714 GetRequests, 491 SyntacticMatches, 6 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1643 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=16, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 410 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 76 PreInvPairs, 91 NumberOfFragments, 575 HoareAnnotationTreeSize, 76 FomulaSimplifications, 998 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2144 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 965 NumberOfCodeBlocks, 965 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1095 ConstructedInterpolants, 0 QuantifiedInterpolants, 2507 SizeOfPredicates, 44 NumberOfNonLiveVariables, 919 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 32 InterpolantComputations, 18 PerfectInterpolantSequences, 563/688 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: 0.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 13, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 15, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 6, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 25, TOOLS_QUANTIFIERELIM_TIME: 0.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 34, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 13, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 1, 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: 319, DAG_COMPRESSION_RETAINED_NODES: 63, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant [2023-11-12 00:52:02,953 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,953 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,954 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,954 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,954 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,954 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,955 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,955 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,955 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:02,955 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,956 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,956 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,956 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,956 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,956 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,957 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,957 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,957 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:02,958 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,958 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,959 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,959 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,959 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,959 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,960 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,960 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,960 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:02,960 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,961 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,961 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,961 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,961 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,961 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,962 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,962 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,962 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated Derived loop invariant: (((127 < \old(e)) || ((128 + \old(e)) < 0)) || (e <= 127)) - InvariantResult [Line: 57]: Loop Invariant [2023-11-12 00:52:02,963 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,963 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,964 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,964 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,964 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,964 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,964 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,965 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,965 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:02,966 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:02,966 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:02,966 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:02,966 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:02,967 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:02,967 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:02,967 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:02,967 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:02,968 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated Derived loop invariant: ((((127 < \old(e)) || ((128 + \old(e)) < 0)) || ((e <= 127) && !((\old(m) == 1)))) && (((\old(e) <= e) || (127 < \old(e))) || ((128 + \old(e)) < 0))) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:52:02,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18c9ca4-5a48-443d-8bad-018087fbca28/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE