./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e073a4c36b82f2b6062e496bb836cd3d16667ec7228f4ab2b6689e74fa81265 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:33:08,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:33:08,226 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:33:08,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:33:08,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:33:08,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:33:08,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:33:08,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:33:08,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:33:08,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:33:08,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:33:08,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:33:08,294 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:33:08,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:33:08,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:33:08,297 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:33:08,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:33:08,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:33:08,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:33:08,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:33:08,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:33:08,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:33:08,301 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:33:08,302 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:33:08,302 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:33:08,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:33:08,303 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:33:08,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:33:08,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:33:08,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:33:08,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:08,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:33:08,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:33:08,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:33:08,308 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:33:08,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:33:08,309 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:33:08,309 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:33:08,309 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:33:08,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:33:08,310 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:33:08,311 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e073a4c36b82f2b6062e496bb836cd3d16667ec7228f4ab2b6689e74fa81265 [2023-11-19 07:33:08,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:33:08,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:33:08,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:33:08,618 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:33:08,618 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:33:08,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i [2023-11-19 07:33:11,741 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:33:11,943 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:33:11,944 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound20.i [2023-11-19 07:33:11,954 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/data/aa66d1f81/00097e36bbe74293b7b6a3ab99d5c408/FLAG6b1c0d0b7 [2023-11-19 07:33:11,971 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/data/aa66d1f81/00097e36bbe74293b7b6a3ab99d5c408 [2023-11-19 07:33:11,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:33:11,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:33:11,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:11,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:33:11,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:33:11,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:11" (1/1) ... [2023-11-19 07:33:11,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dacc599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:11, skipping insertion in model container [2023-11-19 07:33:11,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:11" (1/1) ... [2023-11-19 07:33:12,015 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:33:12,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:12,236 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:33:12,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:12,272 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:33:12,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12 WrapperNode [2023-11-19 07:33:12,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:12,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:12,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:33:12,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:33:12,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,334 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2023-11-19 07:33:12,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:12,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:33:12,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:33:12,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:33:12,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:33:12,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:33:12,359 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:33:12,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:33:12,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (1/1) ... [2023-11-19 07:33:12,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:12,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:12,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:33:12,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:33:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:33:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:33:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:33:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:33:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:33:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:33:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:33:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:33:12,516 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:33:12,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:33:12,693 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:33:12,702 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:33:12,702 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:33:12,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:12 BoogieIcfgContainer [2023-11-19 07:33:12,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:33:12,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:33:12,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:33:12,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:33:12,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:11" (1/3) ... [2023-11-19 07:33:12,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbfc9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:12, skipping insertion in model container [2023-11-19 07:33:12,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:12" (2/3) ... [2023-11-19 07:33:12,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbfc9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:12, skipping insertion in model container [2023-11-19 07:33:12,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:12" (3/3) ... [2023-11-19 07:33:12,728 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound20.i [2023-11-19 07:33:12,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:33:12,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 07:33:12,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:33:12,814 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=PETRI_NET, 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;@789b8634, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:33:12,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 07:33:12,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 30 states have internal predecessors, (40), 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) [2023-11-19 07:33:12,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 07:33:12,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:12,854 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:12,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:12,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:12,862 INFO L85 PathProgramCache]: Analyzing trace with hash -604571617, now seen corresponding path program 1 times [2023-11-19 07:33:12,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:12,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668857135] [2023-11-19 07:33:12,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:12,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:13,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:33:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:13,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:13,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:13,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668857135] [2023-11-19 07:33:13,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668857135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:13,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:13,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:33:13,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699436630] [2023-11-19 07:33:13,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:13,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:33:13,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:13,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:33:13,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:33:13,111 INFO L87 Difference]: Start difference. First operand has 37 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 30 states have internal predecessors, (40), 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:33:13,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:13,151 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2023-11-19 07:33:13,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:33:13,154 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2023-11-19 07:33:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:13,163 INFO L225 Difference]: With dead ends: 70 [2023-11-19 07:33:13,164 INFO L226 Difference]: Without dead ends: 29 [2023-11-19 07:33:13,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:33:13,170 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:13,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:13,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-19 07:33:13,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-19 07:33:13,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:33:13,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2023-11-19 07:33:13,210 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 15 [2023-11-19 07:33:13,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:13,211 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2023-11-19 07:33:13,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:33:13,211 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-11-19 07:33:13,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 07:33:13,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:13,214 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:13,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:33:13,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:13,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:13,216 INFO L85 PathProgramCache]: Analyzing trace with hash 153751263, now seen corresponding path program 1 times [2023-11-19 07:33:13,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:13,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453489848] [2023-11-19 07:33:13,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:13,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:33:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:13,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:13,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453489848] [2023-11-19 07:33:13,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453489848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:13,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:13,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:33:13,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229629472] [2023-11-19 07:33:13,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:13,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:33:13,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:13,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:33:13,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:33:13,414 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:13,497 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2023-11-19 07:33:13,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:33:13,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-19 07:33:13,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:13,501 INFO L225 Difference]: With dead ends: 48 [2023-11-19 07:33:13,501 INFO L226 Difference]: Without dead ends: 33 [2023-11-19 07:33:13,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:33:13,504 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 9 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:13,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 72 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:13,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-19 07:33:13,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-19 07:33:13,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:33:13,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2023-11-19 07:33:13,524 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 15 [2023-11-19 07:33:13,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:13,526 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-11-19 07:33:13,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:13,526 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-11-19 07:33:13,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 07:33:13,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:13,527 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:13,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:33:13,528 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:13,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:13,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2080735310, now seen corresponding path program 1 times [2023-11-19 07:33:13,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:13,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075539503] [2023-11-19 07:33:13,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:13,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:13,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:33:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:13,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:13,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:13,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:13,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075539503] [2023-11-19 07:33:13,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075539503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:13,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:13,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:33:13,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066069787] [2023-11-19 07:33:13,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:13,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:13,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:13,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:13,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:13,832 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:14,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:14,082 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2023-11-19 07:33:14,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:33:14,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-19 07:33:14,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:14,085 INFO L225 Difference]: With dead ends: 52 [2023-11-19 07:33:14,085 INFO L226 Difference]: Without dead ends: 51 [2023-11-19 07:33:14,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:33:14,088 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 27 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:14,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 119 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:33:14,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-19 07:33:14,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2023-11-19 07:33:14,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 37 states have internal predecessors, (44), 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) [2023-11-19 07:33:14,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2023-11-19 07:33:14,104 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 20 [2023-11-19 07:33:14,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:14,104 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2023-11-19 07:33:14,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2023-11-19 07:33:14,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 07:33:14,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:14,107 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:14,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:33:14,108 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:14,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:14,109 INFO L85 PathProgramCache]: Analyzing trace with hash -2080734060, now seen corresponding path program 1 times [2023-11-19 07:33:14,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:14,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760121444] [2023-11-19 07:33:14,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:14,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:14,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:33:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:14,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:14,276 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:14,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:14,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760121444] [2023-11-19 07:33:14,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760121444] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:14,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11456779] [2023-11-19 07:33:14,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:14,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:14,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:14,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:14,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:33:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:14,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:33:14,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:14,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:14,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11456779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:14,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:33:14,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-11-19 07:33:14,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941123502] [2023-11-19 07:33:14,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:14,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:33:14,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:14,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:33:14,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:33:14,440 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:14,478 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2023-11-19 07:33:14,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:33:14,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-19 07:33:14,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:14,480 INFO L225 Difference]: With dead ends: 53 [2023-11-19 07:33:14,481 INFO L226 Difference]: Without dead ends: 52 [2023-11-19 07:33:14,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:33:14,484 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 23 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:14,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 61 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:14,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-19 07:33:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2023-11-19 07:33:14,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 36 states have internal predecessors, (43), 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) [2023-11-19 07:33:14,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2023-11-19 07:33:14,497 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 20 [2023-11-19 07:33:14,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:14,497 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2023-11-19 07:33:14,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:14,498 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2023-11-19 07:33:14,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 07:33:14,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:14,500 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:14,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:33:14,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:14,719 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:14,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:14,719 INFO L85 PathProgramCache]: Analyzing trace with hash -78285105, now seen corresponding path program 1 times [2023-11-19 07:33:14,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:14,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652513947] [2023-11-19 07:33:14,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:14,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:14,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:33:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:14,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:14,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:14,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:14,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652513947] [2023-11-19 07:33:14,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652513947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:14,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:14,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:33:14,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870261919] [2023-11-19 07:33:14,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:14,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:14,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:14,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:14,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:14,991 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:15,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:15,070 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2023-11-19 07:33:15,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:33:15,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-19 07:33:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:15,074 INFO L225 Difference]: With dead ends: 53 [2023-11-19 07:33:15,075 INFO L226 Difference]: Without dead ends: 52 [2023-11-19 07:33:15,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:33:15,079 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 15 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:15,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 98 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:15,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-19 07:33:15,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2023-11-19 07:33:15,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 39 states have internal predecessors, (46), 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) [2023-11-19 07:33:15,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2023-11-19 07:33:15,108 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 21 [2023-11-19 07:33:15,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:15,110 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2023-11-19 07:33:15,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2023-11-19 07:33:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 07:33:15,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:15,117 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:15,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:33:15,118 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:15,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:15,120 INFO L85 PathProgramCache]: Analyzing trace with hash -78246376, now seen corresponding path program 1 times [2023-11-19 07:33:15,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:15,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194392877] [2023-11-19 07:33:15,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:15,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:33:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:15,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:15,302 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:15,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:15,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194392877] [2023-11-19 07:33:15,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194392877] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:15,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101878687] [2023-11-19 07:33:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:15,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:15,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:15,308 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:15,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:33:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:15,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:33:15,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:15,421 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:15,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:15,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101878687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:15,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:33:15,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-11-19 07:33:15,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823987461] [2023-11-19 07:33:15,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:15,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:33:15,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:15,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:33:15,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:33:15,428 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:15,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:15,507 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2023-11-19 07:33:15,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:33:15,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-19 07:33:15,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:15,509 INFO L225 Difference]: With dead ends: 52 [2023-11-19 07:33:15,509 INFO L226 Difference]: Without dead ends: 51 [2023-11-19 07:33:15,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:33:15,511 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 18 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:15,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 85 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:15,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-19 07:33:15,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2023-11-19 07:33:15,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 38 states have internal predecessors, (45), 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) [2023-11-19 07:33:15,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2023-11-19 07:33:15,525 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 21 [2023-11-19 07:33:15,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:15,526 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2023-11-19 07:33:15,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:15,526 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2023-11-19 07:33:15,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 07:33:15,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:15,528 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:15,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:15,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:33:15,750 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:15,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:15,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1129501433, now seen corresponding path program 1 times [2023-11-19 07:33:15,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:15,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727634790] [2023-11-19 07:33:15,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:15,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:33:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:15,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:15,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:15,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727634790] [2023-11-19 07:33:15,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727634790] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:15,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755490695] [2023-11-19 07:33:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:15,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:15,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:15,892 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:15,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:33:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:15,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:33:15,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:16,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:16,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755490695] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:16,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:33:16,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2023-11-19 07:33:16,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957379105] [2023-11-19 07:33:16,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:16,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:33:16,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:16,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:33:16,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:33:16,137 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:33:16,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:16,309 INFO L93 Difference]: Finished difference Result 83 states and 96 transitions. [2023-11-19 07:33:16,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:33:16,309 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 24 [2023-11-19 07:33:16,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:16,311 INFO L225 Difference]: With dead ends: 83 [2023-11-19 07:33:16,311 INFO L226 Difference]: Without dead ends: 70 [2023-11-19 07:33:16,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:33:16,313 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 35 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:16,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 176 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:33:16,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-19 07:33:16,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 60. [2023-11-19 07:33:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 51 states have (on average 1.196078431372549) internal successors, (61), 52 states have internal predecessors, (61), 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) [2023-11-19 07:33:16,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2023-11-19 07:33:16,345 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 24 [2023-11-19 07:33:16,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:16,348 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2023-11-19 07:33:16,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:33:16,349 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2023-11-19 07:33:16,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:33:16,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:16,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:16,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:16,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:33:16,572 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:16,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:16,573 INFO L85 PathProgramCache]: Analyzing trace with hash 654856989, now seen corresponding path program 1 times [2023-11-19 07:33:16,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:16,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344527450] [2023-11-19 07:33:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:16,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:33:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:16,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:16,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:16,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344527450] [2023-11-19 07:33:16,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344527450] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:16,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500504808] [2023-11-19 07:33:16,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:16,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:16,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:16,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:16,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:33:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:16,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:33:16,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:16,829 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:16,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:16,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500504808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:16,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:33:16,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2023-11-19 07:33:16,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090356233] [2023-11-19 07:33:16,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:16,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:16,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:16,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:16,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:33:16,833 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:16,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:16,914 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2023-11-19 07:33:16,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:33:16,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-11-19 07:33:16,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:16,918 INFO L225 Difference]: With dead ends: 60 [2023-11-19 07:33:16,918 INFO L226 Difference]: Without dead ends: 59 [2023-11-19 07:33:16,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:33:16,923 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 30 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:16,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 58 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:16,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-19 07:33:16,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2023-11-19 07:33:16,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:33:16,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2023-11-19 07:33:16,939 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 25 [2023-11-19 07:33:16,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:16,939 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2023-11-19 07:33:16,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:33:16,940 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2023-11-19 07:33:16,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 07:33:16,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:16,957 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:16,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:17,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:17,178 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:17,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:17,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1174269756, now seen corresponding path program 1 times [2023-11-19 07:33:17,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:17,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884729515] [2023-11-19 07:33:17,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:17,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:33:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:33:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:17,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:17,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884729515] [2023-11-19 07:33:17,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884729515] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:17,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424389231] [2023-11-19 07:33:17,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:17,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:17,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:17,283 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:17,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:33:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:17,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:33:17,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:17,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:17,412 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:17,516 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:17,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424389231] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:17,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:33:17,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2023-11-19 07:33:17,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023133644] [2023-11-19 07:33:17,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:17,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-19 07:33:17,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:17,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-19 07:33:17,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:33:17,520 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 19 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:33:17,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:17,776 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2023-11-19 07:33:17,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:33:17,777 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2023-11-19 07:33:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:17,778 INFO L225 Difference]: With dead ends: 77 [2023-11-19 07:33:17,778 INFO L226 Difference]: Without dead ends: 76 [2023-11-19 07:33:17,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2023-11-19 07:33:17,782 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 147 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:17,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 151 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:33:17,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-19 07:33:17,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2023-11-19 07:33:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 60 states have (on average 1.15) internal successors, (69), 60 states have internal predecessors, (69), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:33:17,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2023-11-19 07:33:17,794 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 26 [2023-11-19 07:33:17,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:17,795 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2023-11-19 07:33:17,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 19 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:33:17,795 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2023-11-19 07:33:17,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 07:33:17,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:17,803 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:17,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:18,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:18,006 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:18,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:18,007 INFO L85 PathProgramCache]: Analyzing trace with hash 749470151, now seen corresponding path program 1 times [2023-11-19 07:33:18,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:18,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598896568] [2023-11-19 07:33:18,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:18,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:18,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:33:18,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716897898] [2023-11-19 07:33:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:18,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:18,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:18,022 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:18,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:33:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:18,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:33:18,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:18,218 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:18,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:33:18,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:18,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598896568] [2023-11-19 07:33:18,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:33:18,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716897898] [2023-11-19 07:33:18,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716897898] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:18,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:33:18,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-19 07:33:18,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605765072] [2023-11-19 07:33:18,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:18,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-19 07:33:18,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:18,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 07:33:18,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:33:18,417 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 7 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-19 07:33:18,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:18,842 INFO L93 Difference]: Finished difference Result 165 states and 187 transitions. [2023-11-19 07:33:18,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-19 07:33:18,842 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 7 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 54 [2023-11-19 07:33:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:18,847 INFO L225 Difference]: With dead ends: 165 [2023-11-19 07:33:18,847 INFO L226 Difference]: Without dead ends: 164 [2023-11-19 07:33:18,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=390, Invalid=870, Unknown=0, NotChecked=0, Total=1260 [2023-11-19 07:33:18,849 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 81 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:18,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 227 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:33:18,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-19 07:33:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 125. [2023-11-19 07:33:18,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 105 states have (on average 1.1333333333333333) internal successors, (119), 105 states have internal predecessors, (119), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:33:18,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 139 transitions. [2023-11-19 07:33:18,883 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 139 transitions. Word has length 54 [2023-11-19 07:33:18,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:18,883 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 139 transitions. [2023-11-19 07:33:18,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 7 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-19 07:33:18,884 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 139 transitions. [2023-11-19 07:33:18,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:33:18,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:18,888 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:18,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:19,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:33:19,103 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:19,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:19,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1527022909, now seen corresponding path program 1 times [2023-11-19 07:33:19,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:19,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987333127] [2023-11-19 07:33:19,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:19,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:19,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:33:19,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210353766] [2023-11-19 07:33:19,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:19,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:19,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:19,119 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:19,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:33:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:19,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:33:19,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 07:33:19,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 07:33:19,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:19,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987333127] [2023-11-19 07:33:19,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:33:19,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210353766] [2023-11-19 07:33:19,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210353766] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:19,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:33:19,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-11-19 07:33:19,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785669451] [2023-11-19 07:33:19,580 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:19,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-19 07:33:19,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:19,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-19 07:33:19,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:33:19,585 INFO L87 Difference]: Start difference. First operand 125 states and 139 transitions. Second operand has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 22 states have internal predecessors, (73), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:33:19,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:19,982 INFO L93 Difference]: Finished difference Result 208 states and 236 transitions. [2023-11-19 07:33:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-19 07:33:19,983 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 22 states have internal predecessors, (73), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 62 [2023-11-19 07:33:19,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:19,986 INFO L225 Difference]: With dead ends: 208 [2023-11-19 07:33:19,987 INFO L226 Difference]: Without dead ends: 182 [2023-11-19 07:33:19,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2023-11-19 07:33:19,989 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 112 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:19,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 183 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:33:19,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-19 07:33:20,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 155. [2023-11-19 07:33:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 135 states have (on average 1.1481481481481481) internal successors, (155), 135 states have internal predecessors, (155), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:33:20,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 175 transitions. [2023-11-19 07:33:20,005 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 175 transitions. Word has length 62 [2023-11-19 07:33:20,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:20,006 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 175 transitions. [2023-11-19 07:33:20,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 22 states have internal predecessors, (73), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:33:20,006 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 175 transitions. [2023-11-19 07:33:20,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 07:33:20,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:20,008 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:20,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:20,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 07:33:20,224 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:20,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:20,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1343796701, now seen corresponding path program 2 times [2023-11-19 07:33:20,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:20,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669959667] [2023-11-19 07:33:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:20,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:20,260 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:33:20,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419467675] [2023-11-19 07:33:20,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:33:20,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:20,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:20,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:20,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:33:20,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:33:20,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:33:20,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 07:33:20,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:20,749 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 07:33:20,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 07:33:21,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:21,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669959667] [2023-11-19 07:33:21,355 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:33:21,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419467675] [2023-11-19 07:33:21,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419467675] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:21,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:33:21,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 42 [2023-11-19 07:33:21,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212020028] [2023-11-19 07:33:21,356 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:21,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-19 07:33:21,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:21,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-19 07:33:21,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=1261, Unknown=0, NotChecked=0, Total=1722 [2023-11-19 07:33:21,360 INFO L87 Difference]: Start difference. First operand 155 states and 175 transitions. Second operand has 42 states, 42 states have (on average 3.0) internal successors, (126), 42 states have internal predecessors, (126), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:33:22,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:22,577 INFO L93 Difference]: Finished difference Result 288 states and 330 transitions. [2023-11-19 07:33:22,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-11-19 07:33:22,578 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.0) internal successors, (126), 42 states have internal predecessors, (126), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 92 [2023-11-19 07:33:22,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:22,580 INFO L225 Difference]: With dead ends: 288 [2023-11-19 07:33:22,580 INFO L226 Difference]: Without dead ends: 262 [2023-11-19 07:33:22,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 138 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2099, Invalid=4381, Unknown=0, NotChecked=0, Total=6480 [2023-11-19 07:33:22,586 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 369 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:22,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 155 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:33:22,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-19 07:33:22,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 205. [2023-11-19 07:33:22,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 185 states have (on average 1.162162162162162) internal successors, (215), 185 states have internal predecessors, (215), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:33:22,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 235 transitions. [2023-11-19 07:33:22,607 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 235 transitions. Word has length 92 [2023-11-19 07:33:22,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:22,608 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 235 transitions. [2023-11-19 07:33:22,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.0) internal successors, (126), 42 states have internal predecessors, (126), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:33:22,609 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 235 transitions. [2023-11-19 07:33:22,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:33:22,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:22,610 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:22,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:22,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:33:22,823 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:22,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:22,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1590801713, now seen corresponding path program 2 times [2023-11-19 07:33:22,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:22,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968568254] [2023-11-19 07:33:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:22,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:22,845 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:33:22,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505622949] [2023-11-19 07:33:22,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:33:22,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:22,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:22,847 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:22,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:33:22,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:33:22,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:33:22,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 07:33:22,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:23,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:23,937 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-19 07:33:23,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:23,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968568254] [2023-11-19 07:33:23,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:33:23,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505622949] [2023-11-19 07:33:23,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505622949] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:23,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:33:23,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 41 [2023-11-19 07:33:23,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920533655] [2023-11-19 07:33:23,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:23,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-19 07:33:23,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:23,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-19 07:33:23,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=1297, Unknown=0, NotChecked=0, Total=1722 [2023-11-19 07:33:23,945 INFO L87 Difference]: Start difference. First operand 205 states and 235 transitions. Second operand has 42 states, 41 states have (on average 3.682926829268293) internal successors, (151), 42 states have internal predecessors, (151), 18 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2023-11-19 07:33:25,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:25,032 INFO L93 Difference]: Finished difference Result 476 states and 539 transitions. [2023-11-19 07:33:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-19 07:33:25,035 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.682926829268293) internal successors, (151), 42 states have internal predecessors, (151), 18 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) Word has length 109 [2023-11-19 07:33:25,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:25,041 INFO L225 Difference]: With dead ends: 476 [2023-11-19 07:33:25,041 INFO L226 Difference]: Without dead ends: 475 [2023-11-19 07:33:25,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1492 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1916, Invalid=4726, Unknown=0, NotChecked=0, Total=6642 [2023-11-19 07:33:25,046 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 244 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:25,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 255 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:33:25,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-19 07:33:25,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 315. [2023-11-19 07:33:25,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 275 states have (on average 1.1454545454545455) internal successors, (315), 275 states have internal predecessors, (315), 20 states have call successors, (20), 19 states have call predecessors, (20), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:33:25,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 355 transitions. [2023-11-19 07:33:25,077 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 355 transitions. Word has length 109 [2023-11-19 07:33:25,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:25,078 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 355 transitions. [2023-11-19 07:33:25,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.682926829268293) internal successors, (151), 42 states have internal predecessors, (151), 18 states have call successors, (20), 10 states have call predecessors, (20), 10 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2023-11-19 07:33:25,078 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 355 transitions. [2023-11-19 07:33:25,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-19 07:33:25,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:25,080 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:25,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:25,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:25,283 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:25,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:25,284 INFO L85 PathProgramCache]: Analyzing trace with hash -945366033, now seen corresponding path program 1 times [2023-11-19 07:33:25,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:25,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867287724] [2023-11-19 07:33:25,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:25,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:25,305 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:33:25,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776605510] [2023-11-19 07:33:25,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:25,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:25,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:25,307 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:25,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:33:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:25,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 07:33:25,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 6 proven. 341 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:33:25,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:33:26,492 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 6 proven. 229 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-19 07:33:26,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:26,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867287724] [2023-11-19 07:33:26,492 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:33:26,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776605510] [2023-11-19 07:33:26,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776605510] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:33:26,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:33:26,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2023-11-19 07:33:26,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766843406] [2023-11-19 07:33:26,493 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:33:26,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-19 07:33:26,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-19 07:33:26,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=1760, Unknown=0, NotChecked=0, Total=2256 [2023-11-19 07:33:26,497 INFO L87 Difference]: Start difference. First operand 315 states and 355 transitions. Second operand has 48 states, 47 states have (on average 3.4680851063829787) internal successors, (163), 48 states have internal predecessors, (163), 17 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-19 07:33:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:27,763 INFO L93 Difference]: Finished difference Result 677 states and 764 transitions. [2023-11-19 07:33:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-11-19 07:33:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.4680851063829787) internal successors, (163), 48 states have internal predecessors, (163), 17 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 119 [2023-11-19 07:33:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:27,770 INFO L225 Difference]: With dead ends: 677 [2023-11-19 07:33:27,770 INFO L226 Difference]: Without dead ends: 676 [2023-11-19 07:33:27,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1534 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2022, Invalid=5288, Unknown=0, NotChecked=0, Total=7310 [2023-11-19 07:33:27,776 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 368 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:27,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 262 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:33:27,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2023-11-19 07:33:27,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 315. [2023-11-19 07:33:27,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 275 states have (on average 1.1454545454545455) internal successors, (315), 275 states have internal predecessors, (315), 20 states have call successors, (20), 19 states have call predecessors, (20), 19 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:33:27,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 355 transitions. [2023-11-19 07:33:27,816 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 355 transitions. Word has length 119 [2023-11-19 07:33:27,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:27,817 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 355 transitions. [2023-11-19 07:33:27,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.4680851063829787) internal successors, (163), 48 states have internal predecessors, (163), 17 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-19 07:33:27,817 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 355 transitions. [2023-11-19 07:33:27,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-19 07:33:27,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:27,821 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:27,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:28,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:28,035 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:33:28,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:28,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1642073137, now seen corresponding path program 3 times [2023-11-19 07:33:28,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:28,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779281057] [2023-11-19 07:33:28,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:28,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:28,063 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:33:28,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110858575] [2023-11-19 07:33:28,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:33:28,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:28,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:28,065 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:28,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:33:28,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-19 07:33:28,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:33:28,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:33:28,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:28,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2023-11-19 07:33:28,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:28,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:28,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779281057] [2023-11-19 07:33:28,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:33:28,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110858575] [2023-11-19 07:33:28,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110858575] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:28,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:28,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:33:28,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982307428] [2023-11-19 07:33:28,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:28,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:33:28,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:28,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:33:28,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:33:28,196 INFO L87 Difference]: Start difference. First operand 315 states and 355 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:33:28,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:28,267 INFO L93 Difference]: Finished difference Result 315 states and 355 transitions. [2023-11-19 07:33:28,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:33:28,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 219 [2023-11-19 07:33:28,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:28,269 INFO L225 Difference]: With dead ends: 315 [2023-11-19 07:33:28,269 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:33:28,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:28,271 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:28,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 68 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:28,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:33:28,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:33:28,273 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) [2023-11-19 07:33:28,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:33:28,273 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219 [2023-11-19 07:33:28,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:28,273 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:33:28,274 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:33:28,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:33:28,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:33:28,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-19 07:33:28,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-19 07:33:28,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-19 07:33:28,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-19 07:33:28,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:33:28,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:28,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:33:33,488 INFO L895 garLoopResultBuilder]: At program point L31(line 31) the Hoare annotation is: (= ~counter~0 0) [2023-11-19 07:33:33,488 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-19 07:33:33,488 INFO L895 garLoopResultBuilder]: At program point L31-1(line 31) the Hoare annotation is: (= ~counter~0 0) [2023-11-19 07:33:33,489 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 26 52) no Hoare annotation was computed. [2023-11-19 07:33:33,489 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-19 07:33:33,489 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-19 07:33:33,489 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 49) no Hoare annotation was computed. [2023-11-19 07:33:33,489 INFO L902 garLoopResultBuilder]: At program point L40-4(lines 40 49) the Hoare annotation is: true [2023-11-19 07:33:33,489 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2023-11-19 07:33:33,489 INFO L899 garLoopResultBuilder]: For program point L36-2(line 36) no Hoare annotation was computed. [2023-11-19 07:33:33,489 INFO L899 garLoopResultBuilder]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2023-11-19 07:33:33,490 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-11-19 07:33:33,490 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:33:33,490 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-19 07:33:33,490 INFO L895 garLoopResultBuilder]: At program point L36-5(lines 36 39) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 20)) [2023-11-19 07:33:33,490 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:33:33,490 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 48) no Hoare annotation was computed. [2023-11-19 07:33:33,490 INFO L895 garLoopResultBuilder]: At program point L45-2(lines 40 49) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 21)) [2023-11-19 07:33:33,491 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 20)) [2023-11-19 07:33:33,491 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 40 49) no Hoare annotation was computed. [2023-11-19 07:33:33,491 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2023-11-19 07:33:33,491 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-19 07:33:33,491 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:33:33,492 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-19 07:33:33,492 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:33:33,492 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-19 07:33:33,492 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-11-19 07:33:33,492 INFO L899 garLoopResultBuilder]: For program point L16-2(lines 15 17) no Hoare annotation was computed. [2023-11-19 07:33:33,492 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 15 17) the Hoare annotation is: true [2023-11-19 07:33:33,492 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 15 17) no Hoare annotation was computed. [2023-11-19 07:33:33,492 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 21) no Hoare annotation was computed. [2023-11-19 07:33:33,492 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 22) no Hoare annotation was computed. [2023-11-19 07:33:33,493 INFO L899 garLoopResultBuilder]: For program point L19-2(lines 18 24) no Hoare annotation was computed. [2023-11-19 07:33:33,493 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-19 07:33:33,493 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-19 07:33:33,493 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 18 24) no Hoare annotation was computed. [2023-11-19 07:33:33,493 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 18 24) the Hoare annotation is: true [2023-11-19 07:33:33,496 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:33,499 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:33:33,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:33:33 BoogieIcfgContainer [2023-11-19 07:33:33,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:33:33,515 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:33:33,515 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:33:33,515 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:33:33,516 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:12" (3/4) ... [2023-11-19 07:33:33,519 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:33:33,525 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 07:33:33,525 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 07:33:33,531 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 07:33:33,532 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:33:33,532 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:33:33,532 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:33:33,664 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:33:33,664 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:33:33,664 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:33:33,665 INFO L158 Benchmark]: Toolchain (without parser) took 21689.08ms. Allocated memory was 130.0MB in the beginning and 308.3MB in the end (delta: 178.3MB). Free memory was 84.9MB in the beginning and 141.4MB in the end (delta: -56.6MB). Peak memory consumption was 123.4MB. Max. memory is 16.1GB. [2023-11-19 07:33:33,666 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 130.0MB. Free memory was 102.2MB in the beginning and 102.1MB in the end (delta: 84.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:33:33,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.46ms. Allocated memory is still 130.0MB. Free memory was 84.6MB in the beginning and 73.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:33:33,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.66ms. Allocated memory is still 130.0MB. Free memory was 73.8MB in the beginning and 72.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:33:33,669 INFO L158 Benchmark]: Boogie Preprocessor took 22.82ms. Allocated memory is still 130.0MB. Free memory was 72.2MB in the beginning and 71.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:33:33,669 INFO L158 Benchmark]: RCFGBuilder took 347.80ms. Allocated memory is still 130.0MB. Free memory was 71.0MB in the beginning and 59.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:33:33,670 INFO L158 Benchmark]: TraceAbstraction took 20803.32ms. Allocated memory was 130.0MB in the beginning and 308.3MB in the end (delta: 178.3MB). Free memory was 59.1MB in the beginning and 145.6MB in the end (delta: -86.6MB). Peak memory consumption was 144.5MB. Max. memory is 16.1GB. [2023-11-19 07:33:33,670 INFO L158 Benchmark]: Witness Printer took 149.76ms. Allocated memory is still 308.3MB. Free memory was 145.6MB in the beginning and 141.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:33:33,676 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 130.0MB. Free memory was 102.2MB in the beginning and 102.1MB in the end (delta: 84.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.46ms. Allocated memory is still 130.0MB. Free memory was 84.6MB in the beginning and 73.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.66ms. Allocated memory is still 130.0MB. Free memory was 73.8MB in the beginning and 72.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.82ms. Allocated memory is still 130.0MB. Free memory was 72.2MB in the beginning and 71.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 347.80ms. Allocated memory is still 130.0MB. Free memory was 71.0MB in the beginning and 59.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 20803.32ms. Allocated memory was 130.0MB in the beginning and 308.3MB in the end (delta: 178.3MB). Free memory was 59.1MB in the beginning and 145.6MB in the end (delta: -86.6MB). Peak memory consumption was 144.5MB. Max. memory is 16.1GB. * Witness Printer took 149.76ms. Allocated memory is still 308.3MB. Free memory was 145.6MB in the beginning and 141.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 20.7s, OverallIterations: 15, TraceHistogramMax: 19, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1494 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1494 mSDsluCounter, 2012 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1633 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1330 IncrementalHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 379 mSDtfsCounter, 1330 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1506 GetRequests, 1084 SyntacticMatches, 4 SemanticMatches, 418 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5221 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=13, InterpolantAutomatonStates: 325, 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, 15 MinimizatonAttempts, 695 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 36 PreInvPairs, 96 NumberOfFragments, 36 HoareAnnotationTreeSize, 36 FomulaSimplifications, 161458 FormulaSimplificationTreeSizeReduction, 4.7s HoareSimplificationTime, 8 FomulaSimplificationsInter, 2648 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 958 NumberOfCodeBlocks, 771 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1417 ConstructedInterpolants, 0 QuantifiedInterpolants, 3067 SizeOfPredicates, 91 NumberOfNonLiveVariables, 1428 ConjunctsInSsa, 118 ConjunctsInUnsatCore, 27 InterpolantComputations, 8 PerfectInterpolantSequences, 2178/4024 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((0 <= (counter + 2147483647)) && (counter <= 21)) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((0 <= (counter + 2147483647)) && (counter <= 20)) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:33:33,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87653110-cad5-420b-bf96-c644025c4f90/bin/uautomizer-verify-uCwYo4JHxu/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