./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-simple/nested_4.c --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_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/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_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/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_1c6ef95d-eebe-4a83-911f-047ab00fd262/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 fcf77da5263056f8d62c4caf3b92919690d80ef4ff864a75d0d8d1eec10bdccf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:43,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:43,984 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:57:43,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:43,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:44,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:44,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:44,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:44,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:44,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:44,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:44,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:44,037 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:44,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:44,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:44,040 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:44,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:44,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:44,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:44,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:44,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:44,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:44,043 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:57:44,043 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:57:44,044 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:44,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:44,045 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:44,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:44,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:44,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:44,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:44,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:44,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:44,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:44,048 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:44,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:44,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:44,049 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:44,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:44,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:44,050 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:44,050 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_1c6ef95d-eebe-4a83-911f-047ab00fd262/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcf77da5263056f8d62c4caf3b92919690d80ef4ff864a75d0d8d1eec10bdccf [2023-11-19 07:57:44,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:44,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:44,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:44,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:44,412 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:44,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/loop-simple/nested_4.c [2023-11-19 07:57:47,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:47,685 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:47,685 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/sv-benchmarks/c/loop-simple/nested_4.c [2023-11-19 07:57:47,693 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/data/f742f9560/2c6c742078424342a7f8a799b480997f/FLAGae0a8d361 [2023-11-19 07:57:47,710 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/data/f742f9560/2c6c742078424342a7f8a799b480997f [2023-11-19 07:57:47,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:47,715 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:47,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:47,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:47,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:47,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@84662f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47, skipping insertion in model container [2023-11-19 07:57:47,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,744 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:47,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:47,892 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:47,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:47,923 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:47,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47 WrapperNode [2023-11-19 07:57:47,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:47,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:47,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:47,925 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:47,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,958 INFO L138 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2023-11-19 07:57:47,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:47,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:47,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:47,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:47,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,969 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,973 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,977 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:47,981 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:47,982 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:47,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:47,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (1/1) ... [2023-11-19 07:57:47,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:48,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:48,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:48,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:48,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:48,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:48,130 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:48,133 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:48,270 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:48,278 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:48,279 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:57:48,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:48 BoogieIcfgContainer [2023-11-19 07:57:48,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:48,286 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:48,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:48,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:48,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:47" (1/3) ... [2023-11-19 07:57:48,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc8cdc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:48, skipping insertion in model container [2023-11-19 07:57:48,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:47" (2/3) ... [2023-11-19 07:57:48,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc8cdc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:48, skipping insertion in model container [2023-11-19 07:57:48,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:48" (3/3) ... [2023-11-19 07:57:48,294 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_4.c [2023-11-19 07:57:48,315 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:48,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:57:48,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:48,376 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;@55f72c87, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:48,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 07:57:48,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.894736842105263) internal successors, (36), 27 states have internal predecessors, (36), 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 07:57:48,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 07:57:48,387 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:48,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:57:48,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:48,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:48,394 INFO L85 PathProgramCache]: Analyzing trace with hash 28698896, now seen corresponding path program 1 times [2023-11-19 07:57:48,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:48,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738591427] [2023-11-19 07:57:48,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:48,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:48,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:48,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738591427] [2023-11-19 07:57:48,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738591427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:48,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:48,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:48,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748679579] [2023-11-19 07:57:48,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:48,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:48,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:48,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:48,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:48,703 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.894736842105263) internal successors, (36), 27 states have internal predecessors, (36), 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 07:57:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:48,757 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2023-11-19 07:57:48,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:48,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-19 07:57:48,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:48,769 INFO L225 Difference]: With dead ends: 66 [2023-11-19 07:57:48,769 INFO L226 Difference]: Without dead ends: 35 [2023-11-19 07:57:48,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:48,776 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:48,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 47 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:48,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-19 07:57:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2023-11-19 07:57:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 30 states have internal predecessors, (40), 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 07:57:48,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2023-11-19 07:57:48,822 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 5 [2023-11-19 07:57:48,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:48,822 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2023-11-19 07:57:48,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 07:57:48,823 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2023-11-19 07:57:48,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:57:48,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:48,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:48,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:48,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:48,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:48,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1809866106, now seen corresponding path program 1 times [2023-11-19 07:57:48,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:48,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155457884] [2023-11-19 07:57:48,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:48,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:48,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:48,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:48,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155457884] [2023-11-19 07:57:48,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155457884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:48,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:48,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:48,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435671985] [2023-11-19 07:57:48,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:48,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:48,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:48,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:48,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:48,894 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:57:48,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:48,922 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2023-11-19 07:57:48,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:48,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 07:57:48,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:48,924 INFO L225 Difference]: With dead ends: 66 [2023-11-19 07:57:48,924 INFO L226 Difference]: Without dead ends: 37 [2023-11-19 07:57:48,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:48,926 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:48,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:48,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-19 07:57:48,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-19 07:57:48,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 36 states have internal predecessors, (46), 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 07:57:48,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2023-11-19 07:57:48,937 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 7 [2023-11-19 07:57:48,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:48,937 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-11-19 07:57:48,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:57:48,937 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2023-11-19 07:57:48,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:57:48,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:48,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:48,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:57:48,939 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:48,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:48,940 INFO L85 PathProgramCache]: Analyzing trace with hash -181697864, now seen corresponding path program 1 times [2023-11-19 07:57:48,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:48,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287982401] [2023-11-19 07:57:48,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:48,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:49,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:49,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:49,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287982401] [2023-11-19 07:57:49,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287982401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:49,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:49,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:49,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785627655] [2023-11-19 07:57:49,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:49,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:49,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:49,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:49,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:49,012 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 07:57:49,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:49,046 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2023-11-19 07:57:49,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:49,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 07:57:49,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:49,049 INFO L225 Difference]: With dead ends: 92 [2023-11-19 07:57:49,049 INFO L226 Difference]: Without dead ends: 57 [2023-11-19 07:57:49,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:49,052 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:49,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:49,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-19 07:57:49,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2023-11-19 07:57:49,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 54 states have internal predecessors, (70), 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 07:57:49,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2023-11-19 07:57:49,068 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 9 [2023-11-19 07:57:49,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:49,069 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2023-11-19 07:57:49,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 07:57:49,079 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2023-11-19 07:57:49,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:57:49,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:49,082 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:49,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:57:49,083 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:49,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:49,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1296563273, now seen corresponding path program 1 times [2023-11-19 07:57:49,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:49,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550662476] [2023-11-19 07:57:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:49,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:49,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:49,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:49,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550662476] [2023-11-19 07:57:49,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550662476] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:49,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949299994] [2023-11-19 07:57:49,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:49,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:49,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:49,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:49,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:57:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:49,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:49,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:49,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:49,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:49,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949299994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:49,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:57:49,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 07:57:49,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731392200] [2023-11-19 07:57:49,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:49,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:49,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:49,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:49,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:49,403 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 07:57:49,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:49,435 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2023-11-19 07:57:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:57:49,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-19 07:57:49,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:49,438 INFO L225 Difference]: With dead ends: 55 [2023-11-19 07:57:49,438 INFO L226 Difference]: Without dead ends: 54 [2023-11-19 07:57:49,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 07:57:49,441 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 37 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:49,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 20 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:49,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-19 07:57:49,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-19 07:57:49,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 53 states have internal predecessors, (66), 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 07:57:49,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2023-11-19 07:57:49,457 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 10 [2023-11-19 07:57:49,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:49,457 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2023-11-19 07:57:49,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 07:57:49,458 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2023-11-19 07:57:49,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:57:49,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:49,463 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:49,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:49,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:49,676 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:49,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:49,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1538755730, now seen corresponding path program 1 times [2023-11-19 07:57:49,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:49,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439518147] [2023-11-19 07:57:49,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:49,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:49,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:57:49,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:49,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439518147] [2023-11-19 07:57:49,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439518147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:49,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:49,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:49,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525772234] [2023-11-19 07:57:49,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:49,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:49,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:49,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:49,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:49,727 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 07:57:49,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:49,755 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2023-11-19 07:57:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:49,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 07:57:49,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:49,757 INFO L225 Difference]: With dead ends: 54 [2023-11-19 07:57:49,757 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 07:57:49,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:49,759 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:49,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:49,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 07:57:49,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 45. [2023-11-19 07:57:49,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 44 states have internal predecessors, (54), 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 07:57:49,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2023-11-19 07:57:49,780 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 11 [2023-11-19 07:57:49,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:49,781 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2023-11-19 07:57:49,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 07:57:49,781 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2023-11-19 07:57:49,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 07:57:49,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:49,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:49,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:57:49,783 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:49,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:49,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1935062902, now seen corresponding path program 1 times [2023-11-19 07:57:49,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:49,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943031386] [2023-11-19 07:57:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:49,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:49,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:49,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:49,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943031386] [2023-11-19 07:57:49,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943031386] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:49,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376629061] [2023-11-19 07:57:49,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:49,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:49,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:49,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:49,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:57:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:49,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:57:49,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:49,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:57:49,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:49,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376629061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:49,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:57:50,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 07:57:50,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765512985] [2023-11-19 07:57:50,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:50,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:50,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:50,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:50,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:50,003 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 07:57:50,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:50,026 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2023-11-19 07:57:50,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:50,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-19 07:57:50,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:50,028 INFO L225 Difference]: With dead ends: 45 [2023-11-19 07:57:50,028 INFO L226 Difference]: Without dead ends: 44 [2023-11-19 07:57:50,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:50,029 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:50,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:50,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-19 07:57:50,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-19 07:57:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.358974358974359) internal successors, (53), 43 states have internal predecessors, (53), 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 07:57:50,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2023-11-19 07:57:50,050 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 16 [2023-11-19 07:57:50,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:50,050 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2023-11-19 07:57:50,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 07:57:50,051 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2023-11-19 07:57:50,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 07:57:50,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:50,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:50,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:50,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:50,276 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:50,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:50,276 INFO L85 PathProgramCache]: Analyzing trace with hash -142592092, now seen corresponding path program 1 times [2023-11-19 07:57:50,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:50,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564982263] [2023-11-19 07:57:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:50,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:50,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:50,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:50,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564982263] [2023-11-19 07:57:50,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564982263] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:50,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399305614] [2023-11-19 07:57:50,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:50,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:50,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:50,328 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:50,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:57:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:50,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:57:50,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:57:50,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:50,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399305614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:50,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:57:50,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 07:57:50,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952793602] [2023-11-19 07:57:50,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:50,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:50,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:50,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:50,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:50,440 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 07:57:50,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:50,479 INFO L93 Difference]: Finished difference Result 86 states and 104 transitions. [2023-11-19 07:57:50,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:50,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-19 07:57:50,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:50,484 INFO L225 Difference]: With dead ends: 86 [2023-11-19 07:57:50,487 INFO L226 Difference]: Without dead ends: 85 [2023-11-19 07:57:50,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:50,489 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:50,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 36 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:50,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-19 07:57:50,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2023-11-19 07:57:50,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 76 states have (on average 1.355263157894737) internal successors, (103), 80 states have internal predecessors, (103), 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 07:57:50,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2023-11-19 07:57:50,513 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 17 [2023-11-19 07:57:50,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:50,513 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2023-11-19 07:57:50,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 07:57:50,513 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2023-11-19 07:57:50,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 07:57:50,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:50,514 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:50,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:50,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:50,715 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:50,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:50,715 INFO L85 PathProgramCache]: Analyzing trace with hash -101489022, now seen corresponding path program 1 times [2023-11-19 07:57:50,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:50,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847080722] [2023-11-19 07:57:50,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:50,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:57:50,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:50,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847080722] [2023-11-19 07:57:50,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847080722] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:50,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261098643] [2023-11-19 07:57:50,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:50,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:50,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:50,794 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:50,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:57:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:50,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:50,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:57:50,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:50,918 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:57:50,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261098643] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:50,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:57:50,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:57:50,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426596685] [2023-11-19 07:57:50,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:50,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:50,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:50,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:50,926 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 07:57:50,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:50,982 INFO L93 Difference]: Finished difference Result 225 states and 292 transitions. [2023-11-19 07:57:50,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:50,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-19 07:57:50,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:50,986 INFO L225 Difference]: With dead ends: 225 [2023-11-19 07:57:50,987 INFO L226 Difference]: Without dead ends: 153 [2023-11-19 07:57:50,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:50,994 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 83 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 07:57:50,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 83 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:50,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-19 07:57:51,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-11-19 07:57:51,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.1824324324324325) internal successors, (175), 152 states have internal predecessors, (175), 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 07:57:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 175 transitions. [2023-11-19 07:57:51,037 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 175 transitions. Word has length 17 [2023-11-19 07:57:51,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:51,037 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 175 transitions. [2023-11-19 07:57:51,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 07:57:51,038 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 175 transitions. [2023-11-19 07:57:51,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 07:57:51,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:51,039 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:51,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:51,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:57:51,255 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:51,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:51,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1733170254, now seen corresponding path program 2 times [2023-11-19 07:57:51,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:51,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611819594] [2023-11-19 07:57:51,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:51,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-19 07:57:51,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:51,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611819594] [2023-11-19 07:57:51,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611819594] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:51,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458508942] [2023-11-19 07:57:51,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:57:51,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:51,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:51,398 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:51,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:57:51,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:57:51,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:57:51,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:57:51,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-19 07:57:51,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:51,604 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-19 07:57:51,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458508942] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:51,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:57:51,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2023-11-19 07:57:51,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777595682] [2023-11-19 07:57:51,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:51,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:51,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:51,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:51,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:51,607 INFO L87 Difference]: Start difference. First operand 153 states and 175 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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 07:57:51,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:51,815 INFO L93 Difference]: Finished difference Result 335 states and 395 transitions. [2023-11-19 07:57:51,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:57:51,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-19 07:57:51,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:51,817 INFO L225 Difference]: With dead ends: 335 [2023-11-19 07:57:51,817 INFO L226 Difference]: Without dead ends: 200 [2023-11-19 07:57:51,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:57:51,819 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:51,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 60 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:51,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-19 07:57:51,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2023-11-19 07:57:51,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 196 states have (on average 1.1173469387755102) internal successors, (219), 199 states have internal predecessors, (219), 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 07:57:51,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 219 transitions. [2023-11-19 07:57:51,845 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 219 transitions. Word has length 35 [2023-11-19 07:57:51,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:51,846 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 219 transitions. [2023-11-19 07:57:51,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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 07:57:51,846 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 219 transitions. [2023-11-19 07:57:51,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 07:57:51,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:51,848 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:51,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:52,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-19 07:57:52,068 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:52,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:52,069 INFO L85 PathProgramCache]: Analyzing trace with hash 791216218, now seen corresponding path program 1 times [2023-11-19 07:57:52,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:52,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966192731] [2023-11-19 07:57:52,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:52,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-19 07:57:52,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:52,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966192731] [2023-11-19 07:57:52,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966192731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:52,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:52,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:52,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147627475] [2023-11-19 07:57:52,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:52,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:52,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:52,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:52,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:52,137 INFO L87 Difference]: Start difference. First operand 200 states and 219 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 07:57:52,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:52,162 INFO L93 Difference]: Finished difference Result 200 states and 219 transitions. [2023-11-19 07:57:52,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:52,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-11-19 07:57:52,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:52,164 INFO L225 Difference]: With dead ends: 200 [2023-11-19 07:57:52,164 INFO L226 Difference]: Without dead ends: 199 [2023-11-19 07:57:52,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:52,166 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:52,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:52,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-19 07:57:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 115. [2023-11-19 07:57:52,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 112 states have (on average 1.1339285714285714) internal successors, (127), 114 states have internal predecessors, (127), 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 07:57:52,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 127 transitions. [2023-11-19 07:57:52,182 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 127 transitions. Word has length 48 [2023-11-19 07:57:52,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:52,183 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 127 transitions. [2023-11-19 07:57:52,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 07:57:52,183 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions. [2023-11-19 07:57:52,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 07:57:52,185 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:52,185 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:52,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:57:52,186 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:52,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:52,187 INFO L85 PathProgramCache]: Analyzing trace with hash -726819315, now seen corresponding path program 1 times [2023-11-19 07:57:52,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:52,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203440963] [2023-11-19 07:57:52,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:52,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:52,260 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-19 07:57:52,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:52,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203440963] [2023-11-19 07:57:52,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203440963] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:52,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580481451] [2023-11-19 07:57:52,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:52,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:52,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:52,262 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:52,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:57:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:52,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:52,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:52,385 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-19 07:57:52,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-19 07:57:52,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580481451] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:52,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:57:52,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:57:52,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524576560] [2023-11-19 07:57:52,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:52,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:52,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:52,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:52,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:52,451 INFO L87 Difference]: Start difference. First operand 115 states and 127 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 07:57:52,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:52,519 INFO L93 Difference]: Finished difference Result 467 states and 513 transitions. [2023-11-19 07:57:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:52,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-11-19 07:57:52,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:52,523 INFO L225 Difference]: With dead ends: 467 [2023-11-19 07:57:52,523 INFO L226 Difference]: Without dead ends: 379 [2023-11-19 07:57:52,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:52,526 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 49 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 07:57:52,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 49 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:52,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-19 07:57:52,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2023-11-19 07:57:52,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 376 states have (on average 1.071808510638298) internal successors, (403), 378 states have internal predecessors, (403), 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 07:57:52,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 403 transitions. [2023-11-19 07:57:52,593 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 403 transitions. Word has length 54 [2023-11-19 07:57:52,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:52,594 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 403 transitions. [2023-11-19 07:57:52,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 07:57:52,594 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 403 transitions. [2023-11-19 07:57:52,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-19 07:57:52,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:52,606 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:52,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:52,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:52,827 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:52,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:52,827 INFO L85 PathProgramCache]: Analyzing trace with hash 293855293, now seen corresponding path program 2 times [2023-11-19 07:57:52,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:52,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733867768] [2023-11-19 07:57:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:52,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:53,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 0 proven. 1995 refuted. 0 times theorem prover too weak. 1904 trivial. 0 not checked. [2023-11-19 07:57:53,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:53,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733867768] [2023-11-19 07:57:53,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733867768] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:53,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817835970] [2023-11-19 07:57:53,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:57:53,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:53,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:53,127 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:53,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:57:53,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:57:53,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:57:53,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:57:53,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:53,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 1994 proven. 748 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2023-11-19 07:57:53,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 1994 proven. 748 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2023-11-19 07:57:53,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817835970] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:53,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:57:53,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2023-11-19 07:57:53,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60581471] [2023-11-19 07:57:53,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:53,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:53,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:53,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:53,586 INFO L87 Difference]: Start difference. First operand 379 states and 403 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 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 07:57:53,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:53,860 INFO L93 Difference]: Finished difference Result 840 states and 900 transitions. [2023-11-19 07:57:53,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:57:53,861 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2023-11-19 07:57:53,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:53,865 INFO L225 Difference]: With dead ends: 840 [2023-11-19 07:57:53,865 INFO L226 Difference]: Without dead ends: 554 [2023-11-19 07:57:53,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 361 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:57:53,867 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:53,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 76 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:53,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-19 07:57:53,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2023-11-19 07:57:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 552 states have (on average 1.059782608695652) internal successors, (585), 553 states have internal predecessors, (585), 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 07:57:53,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 585 transitions. [2023-11-19 07:57:53,935 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 585 transitions. Word has length 186 [2023-11-19 07:57:53,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:53,936 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 585 transitions. [2023-11-19 07:57:53,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 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 07:57:53,936 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 585 transitions. [2023-11-19 07:57:53,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-11-19 07:57:53,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:53,941 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:57:53,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:54,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:54,157 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:54,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:54,157 INFO L85 PathProgramCache]: Analyzing trace with hash 117651350, now seen corresponding path program 1 times [2023-11-19 07:57:54,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:54,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628981191] [2023-11-19 07:57:54,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:54,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:54,365 INFO L134 CoverageAnalysis]: Checked inductivity of 8824 backedges. 4479 proven. 0 refuted. 0 times theorem prover too weak. 4345 trivial. 0 not checked. [2023-11-19 07:57:54,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:54,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628981191] [2023-11-19 07:57:54,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628981191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:54,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:54,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:54,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825929894] [2023-11-19 07:57:54,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:54,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:54,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:54,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:54,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:54,369 INFO L87 Difference]: Start difference. First operand 554 states and 585 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 07:57:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:54,435 INFO L93 Difference]: Finished difference Result 554 states and 585 transitions. [2023-11-19 07:57:54,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:54,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2023-11-19 07:57:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:54,440 INFO L225 Difference]: With dead ends: 554 [2023-11-19 07:57:54,440 INFO L226 Difference]: Without dead ends: 553 [2023-11-19 07:57:54,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:54,442 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:54,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:54,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-11-19 07:57:54,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 283. [2023-11-19 07:57:54,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.0602836879432624) internal successors, (299), 282 states have internal predecessors, (299), 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 07:57:54,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 299 transitions. [2023-11-19 07:57:54,489 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 299 transitions. Word has length 275 [2023-11-19 07:57:54,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:54,490 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 299 transitions. [2023-11-19 07:57:54,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 07:57:54,491 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 299 transitions. [2023-11-19 07:57:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-11-19 07:57:54,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:54,495 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-19 07:57:54,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:57:54,496 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:57:54,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:54,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1144911330, now seen corresponding path program 1 times [2023-11-19 07:57:54,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:54,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450427943] [2023-11-19 07:57:54,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:54,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 8832 backedges. 4484 proven. 1 refuted. 0 times theorem prover too weak. 4347 trivial. 0 not checked. [2023-11-19 07:57:54,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:54,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450427943] [2023-11-19 07:57:54,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450427943] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:54,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738195971] [2023-11-19 07:57:54,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:54,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:54,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:54,754 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:54,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:57:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:54,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:57:54,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:55,100 INFO L134 CoverageAnalysis]: Checked inductivity of 8832 backedges. 4485 proven. 0 refuted. 0 times theorem prover too weak. 4347 trivial. 0 not checked. [2023-11-19 07:57:55,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:55,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738195971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:55,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:57:55,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 07:57:55,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47847430] [2023-11-19 07:57:55,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:55,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:55,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:55,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:55,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:55,103 INFO L87 Difference]: Start difference. First operand 283 states and 299 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 07:57:55,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:55,143 INFO L93 Difference]: Finished difference Result 283 states and 299 transitions. [2023-11-19 07:57:55,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:55,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2023-11-19 07:57:55,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:55,144 INFO L225 Difference]: With dead ends: 283 [2023-11-19 07:57:55,145 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:57:55,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:55,146 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:55,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:55,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:57:55,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:57:55,147 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 07:57:55,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:57:55,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 282 [2023-11-19 07:57:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:55,148 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:57:55,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 07:57:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:57:55,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:57:55,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-19 07:57:55,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-19 07:57:55,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-19 07:57:55,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-19 07:57:55,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-19 07:57:55,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-19 07:57:55,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-19 07:57:55,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-19 07:57:55,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:55,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:57:55,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:58:00,524 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-19 07:58:00,525 INFO L899 garLoopResultBuilder]: For program point L31-1(lines 31 33) no Hoare annotation was computed. [2023-11-19 07:58:00,525 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 29) no Hoare annotation was computed. [2023-11-19 07:58:00,525 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2023-11-19 07:58:00,525 INFO L895 garLoopResultBuilder]: At program point L23-4(lines 23 29) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~c~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~a~0#1| 5)) (.cse2 (<= 1 |ULTIMATE.start_main_~d~0#1|)) (.cse3 (<= 0 |ULTIMATE.start_main_~a~0#1|))) (or (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse2 .cse3) (and (= |ULTIMATE.start_main_~b~0#1| 0) .cse0 .cse1 .cse2 .cse3))) [2023-11-19 07:58:00,526 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 15 35) no Hoare annotation was computed. [2023-11-19 07:58:00,526 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-11-19 07:58:00,526 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:58:00,526 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-11-19 07:58:00,526 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-19 07:58:00,526 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:58:00,526 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2023-11-19 07:58:00,526 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2023-11-19 07:58:00,527 INFO L895 garLoopResultBuilder]: At program point L24-4(lines 24 28) the Hoare annotation is: (let ((.cse5 (<= |ULTIMATE.start_main_~b~0#1| 5)) (.cse6 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse2 (= |ULTIMATE.start_main_~b~0#1| 0)) (.cse3 (<= 1 |ULTIMATE.start_main_~d~0#1|)) (.cse4 (<= 0 |ULTIMATE.start_main_~a~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~a~0#1| 5))) (or (and .cse0 (let ((.cse1 (= |ULTIMATE.start_main_~c~0#1| 0))) (or (and .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse3 .cse4)))) (and (let ((.cse7 (<= 1 |ULTIMATE.start_main_~c~0#1|))) (or (and .cse7 .cse5 .cse6 .cse3 .cse4) (and .cse2 .cse7 .cse3 .cse4))) .cse0))) [2023-11-19 07:58:00,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-11-19 07:58:00,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:58:00,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-19 07:58:00,527 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 27) no Hoare annotation was computed. [2023-11-19 07:58:00,527 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2023-11-19 07:58:00,528 INFO L895 garLoopResultBuilder]: At program point L25-4(lines 25 27) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~a~0#1| 5)) (.cse4 (<= |ULTIMATE.start_main_~b~0#1| 5)) (.cse5 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~c~0#1| 5)) (.cse2 (= |ULTIMATE.start_main_~b~0#1| 0)) (.cse6 (<= 1 |ULTIMATE.start_main_~c~0#1|)) (.cse9 (= |ULTIMATE.start_main_~c~0#1| 0)) (.cse8 (<= 0 |ULTIMATE.start_main_~a~0#1|))) (or (and .cse0 (let ((.cse3 (let ((.cse7 (<= 1 |ULTIMATE.start_main_~d~0#1|))) (or (and .cse6 .cse7 .cse8) (and .cse9 .cse7 .cse8))))) (or (and .cse1 .cse2 .cse3) (and .cse1 .cse3 .cse4 .cse5)))) (and .cse0 (let ((.cse10 (let ((.cse11 (= |ULTIMATE.start_main_~d~0#1| 0))) (or (and .cse6 .cse11 .cse8) (and .cse9 .cse11 .cse8))))) (or (and .cse1 .cse10 .cse4 .cse5) (and .cse1 .cse10 .cse2)))))) [2023-11-19 07:58:00,528 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-19 07:58:00,528 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:58:00,528 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-19 07:58:00,528 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 30) no Hoare annotation was computed. [2023-11-19 07:58:00,528 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2023-11-19 07:58:00,528 INFO L895 garLoopResultBuilder]: At program point L22-4(lines 22 30) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= 1 |ULTIMATE.start_main_~d~0#1|) (<= 0 |ULTIMATE.start_main_~a~0#1|)) [2023-11-19 07:58:00,529 INFO L899 garLoopResultBuilder]: For program point L22-5(lines 15 35) no Hoare annotation was computed. [2023-11-19 07:58:00,529 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-11-19 07:58:00,538 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:00,542 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:58:00,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:58:00 BoogieIcfgContainer [2023-11-19 07:58:00,574 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:58:00,574 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:58:00,574 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:58:00,575 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:58:00,575 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:48" (3/4) ... [2023-11-19 07:58:00,578 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:58:00,588 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 07:58:00,588 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:58:00,589 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:58:00,589 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:58:00,717 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:58:00,717 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:58:00,718 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:58:00,718 INFO L158 Benchmark]: Toolchain (without parser) took 13003.85ms. Allocated memory was 151.0MB in the beginning and 295.7MB in the end (delta: 144.7MB). Free memory was 105.7MB in the beginning and 265.5MB in the end (delta: -159.8MB). Peak memory consumption was 132.2MB. Max. memory is 16.1GB. [2023-11-19 07:58:00,721 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 151.0MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:00,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.45ms. Allocated memory is still 151.0MB. Free memory was 105.2MB in the beginning and 95.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:58:00,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.59ms. Allocated memory is still 151.0MB. Free memory was 95.3MB in the beginning and 93.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:58:00,723 INFO L158 Benchmark]: Boogie Preprocessor took 21.12ms. Allocated memory is still 151.0MB. Free memory was 93.7MB in the beginning and 92.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:00,724 INFO L158 Benchmark]: RCFGBuilder took 301.62ms. Allocated memory is still 151.0MB. Free memory was 92.6MB in the beginning and 82.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:58:00,725 INFO L158 Benchmark]: TraceAbstraction took 12288.02ms. Allocated memory was 151.0MB in the beginning and 245.4MB in the end (delta: 94.4MB). Free memory was 81.1MB in the beginning and 75.0MB in the end (delta: 6.1MB). Peak memory consumption was 107.3MB. Max. memory is 16.1GB. [2023-11-19 07:58:00,726 INFO L158 Benchmark]: Witness Printer took 143.57ms. Allocated memory was 245.4MB in the beginning and 295.7MB in the end (delta: 50.3MB). Free memory was 75.0MB in the beginning and 265.5MB in the end (delta: -190.5MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-11-19 07:58:00,732 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 151.0MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.45ms. Allocated memory is still 151.0MB. Free memory was 105.2MB in the beginning and 95.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.59ms. Allocated memory is still 151.0MB. Free memory was 95.3MB in the beginning and 93.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.12ms. Allocated memory is still 151.0MB. Free memory was 93.7MB in the beginning and 92.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 301.62ms. Allocated memory is still 151.0MB. Free memory was 92.6MB in the beginning and 82.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 12288.02ms. Allocated memory was 151.0MB in the beginning and 245.4MB in the end (delta: 94.4MB). Free memory was 81.1MB in the beginning and 75.0MB in the end (delta: 6.1MB). Peak memory consumption was 107.3MB. Max. memory is 16.1GB. * Witness Printer took 143.57ms. Allocated memory was 245.4MB in the beginning and 295.7MB in the end (delta: 50.3MB). Free memory was 75.0MB in the beginning and 265.5MB in the end (delta: -190.5MB). Peak memory consumption was 4.5MB. 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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 1 procedures, 28 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 12.2s, OverallIterations: 14, TraceHistogramMax: 72, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 566 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 307 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 277 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 259 mSDtfsCounter, 277 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 965 GetRequests, 889 SyntacticMatches, 8 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=12, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 372 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 108 NumberOfFragments, 244 HoareAnnotationTreeSize, 4 FomulaSimplifications, 4188 FormulaSimplificationTreeSizeReduction, 3.4s HoareSimplificationTime, 4 FomulaSimplificationsInter, 5852 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1589 NumberOfCodeBlocks, 1589 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1855 ConstructedInterpolants, 0 QuantifiedInterpolants, 3821 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1287 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 26 InterpolantComputations, 10 PerfectInterpolantSequences, 35864/39469 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 8 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((a <= 5) && ((((c <= 5) && (b == 0)) && ((((1 <= c) && (1 <= d)) && (0 <= a)) || (((c == 0) && (1 <= d)) && (0 <= a)))) || ((((c <= 5) && ((((1 <= c) && (1 <= d)) && (0 <= a)) || (((c == 0) && (1 <= d)) && (0 <= a)))) && (b <= 5)) && (1 <= b)))) || ((a <= 5) && (((((c <= 5) && ((((1 <= c) && (d == 0)) && (0 <= a)) || (((c == 0) && (d == 0)) && (0 <= a)))) && (b <= 5)) && (1 <= b)) || (((c <= 5) && ((((1 <= c) && (d == 0)) && (0 <= a)) || (((c == 0) && (d == 0)) && (0 <= a)))) && (b == 0))))) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((((1 <= c) && (a <= 5)) && (1 <= b)) && (1 <= d)) && (0 <= a)) || (((((b == 0) && (1 <= c)) && (a <= 5)) && (1 <= d)) && (0 <= a))) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((1 <= c) && (1 <= b)) && (1 <= d)) && (0 <= a)) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((a <= 5) && (((((c == 0) && (b == 0)) && (1 <= d)) && (0 <= a)) || (((((c == 0) && (b <= 5)) && (1 <= b)) && (1 <= d)) && (0 <= a)))) || (((((((1 <= c) && (b <= 5)) && (1 <= b)) && (1 <= d)) && (0 <= a)) || ((((b == 0) && (1 <= c)) && (1 <= d)) && (0 <= a))) && (a <= 5))) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:58:00,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c6ef95d-eebe-4a83-911f-047ab00fd262/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