./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/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_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/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_4c1cddec-1084-4f95-baad-f0d4feac239d/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 d3c61dee0c4c48de96844df391dc470a843cae078bb175116ed4a6b789669168 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:33,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:33,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:43:33,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:33,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:34,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:34,011 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:34,012 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:34,013 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:34,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:34,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:34,020 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:34,020 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:34,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:34,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:43:34,023 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:43:34,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:34,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:43:34,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:34,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:43:34,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:34,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:43:34,026 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:43:34,027 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:43:34,027 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:43:34,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:43:34,028 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:34,029 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:34,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:34,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:34,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:34,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:34,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:34,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:43:34,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:43:34,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:43:34,033 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:34,034 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:43:34,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:34,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:34,034 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:34,035 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_4c1cddec-1084-4f95-baad-f0d4feac239d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3c61dee0c4c48de96844df391dc470a843cae078bb175116ed4a6b789669168 [2023-11-19 07:43:34,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:34,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:34,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:34,418 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:34,419 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:34,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.c [2023-11-19 07:43:37,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:37,794 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:37,795 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.c [2023-11-19 07:43:37,803 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/data/b8b045af1/f5e4576fc05644ebbb98b5c30e93900a/FLAG88630b292 [2023-11-19 07:43:37,818 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/data/b8b045af1/f5e4576fc05644ebbb98b5c30e93900a [2023-11-19 07:43:37,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:37,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:37,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:37,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:37,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:37,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:37" (1/1) ... [2023-11-19 07:43:37,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@471e125e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:37, skipping insertion in model container [2023-11-19 07:43:37,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:37" (1/1) ... [2023-11-19 07:43:37,853 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:38,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:38,046 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:38,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:38,088 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:38,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38 WrapperNode [2023-11-19 07:43:38,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:38,090 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:38,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:38,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:38,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,141 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 192 [2023-11-19 07:43:38,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:38,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:38,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:38,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:38,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,167 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:38,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:38,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:38,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:38,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2023-11-19 07:43:38,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:38,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:38,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:38,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:43:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:43:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:43:38,359 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:38,361 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:39,134 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:39,147 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:39,147 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:43:39,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:39 BoogieIcfgContainer [2023-11-19 07:43:39,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:39,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:39,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:39,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:39,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:37" (1/3) ... [2023-11-19 07:43:39,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b082b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:39, skipping insertion in model container [2023-11-19 07:43:39,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (2/3) ... [2023-11-19 07:43:39,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b082b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:39, skipping insertion in model container [2023-11-19 07:43:39,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:39" (3/3) ... [2023-11-19 07:43:39,168 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound20.c [2023-11-19 07:43:39,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:39,190 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 138 error locations. [2023-11-19 07:43:39,260 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:39,268 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;@16054537, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:39,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2023-11-19 07:43:39,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 303 states, 152 states have (on average 1.9407894736842106) internal successors, (295), 290 states have internal predecessors, (295), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:43:39,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:43:39,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:39,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:43:39,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:39,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:39,289 INFO L85 PathProgramCache]: Analyzing trace with hash 889508963, now seen corresponding path program 1 times [2023-11-19 07:43:39,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:39,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669974262] [2023-11-19 07:43:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:39,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:39,516 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 07:43:39,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:39,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669974262] [2023-11-19 07:43:39,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669974262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:39,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:39,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:39,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438086670] [2023-11-19 07:43:39,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:39,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:43:39,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:39,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:43:39,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:43:39,603 INFO L87 Difference]: Start difference. First operand has 303 states, 152 states have (on average 1.9407894736842106) internal successors, (295), 290 states have internal predecessors, (295), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 07:43:39,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:39,715 INFO L93 Difference]: Finished difference Result 595 states and 640 transitions. [2023-11-19 07:43:39,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:43:39,718 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-19 07:43:39,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:39,740 INFO L225 Difference]: With dead ends: 595 [2023-11-19 07:43:39,740 INFO L226 Difference]: Without dead ends: 289 [2023-11-19 07:43:39,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:43:39,755 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:39,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2023-11-19 07:43:39,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2023-11-19 07:43:39,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 147 states have (on average 1.8911564625850341) internal successors, (278), 277 states have internal predecessors, (278), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:43:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 298 transitions. [2023-11-19 07:43:39,838 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 298 transitions. Word has length 6 [2023-11-19 07:43:39,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:39,839 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 298 transitions. [2023-11-19 07:43:39,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 07:43:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 298 transitions. [2023-11-19 07:43:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:43:39,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:39,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:43:39,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:43:39,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:39,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:39,841 INFO L85 PathProgramCache]: Analyzing trace with hash 889568486, now seen corresponding path program 1 times [2023-11-19 07:43:39,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:39,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002671439] [2023-11-19 07:43:39,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:39,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:39,912 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 07:43:39,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:39,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002671439] [2023-11-19 07:43:39,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002671439] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:39,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:39,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:39,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480904116] [2023-11-19 07:43:39,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:39,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:39,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:39,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:39,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:39,916 INFO L87 Difference]: Start difference. First operand 289 states and 298 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:43:40,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:40,074 INFO L93 Difference]: Finished difference Result 558 states and 577 transitions. [2023-11-19 07:43:40,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:40,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-19 07:43:40,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:40,078 INFO L225 Difference]: With dead ends: 558 [2023-11-19 07:43:40,078 INFO L226 Difference]: Without dead ends: 538 [2023-11-19 07:43:40,079 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 07:43:40,081 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 237 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:40,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 522 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:40,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-11-19 07:43:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 348. [2023-11-19 07:43:40,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 201 states have (on average 1.791044776119403) internal successors, (360), 331 states have internal predecessors, (360), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 07:43:40,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 390 transitions. [2023-11-19 07:43:40,107 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 390 transitions. Word has length 6 [2023-11-19 07:43:40,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:40,108 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 390 transitions. [2023-11-19 07:43:40,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:43:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 390 transitions. [2023-11-19 07:43:40,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 07:43:40,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:40,110 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:40,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:43:40,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:40,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:40,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1390848492, now seen corresponding path program 1 times [2023-11-19 07:43:40,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:40,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093822095] [2023-11-19 07:43:40,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:40,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:40,135 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:40,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124167045] [2023-11-19 07:43:40,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:40,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:40,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:40,138 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:40,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:43:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:43:40,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:40,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:40,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:40,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:40,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093822095] [2023-11-19 07:43:40,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:40,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124167045] [2023-11-19 07:43:40,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124167045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:40,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:40,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:40,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763440853] [2023-11-19 07:43:40,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:40,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:40,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:40,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:40,489 INFO L87 Difference]: Start difference. First operand 348 states and 390 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:41,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:41,215 INFO L93 Difference]: Finished difference Result 546 states and 565 transitions. [2023-11-19 07:43:41,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:41,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2023-11-19 07:43:41,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:41,221 INFO L225 Difference]: With dead ends: 546 [2023-11-19 07:43:41,221 INFO L226 Difference]: Without dead ends: 491 [2023-11-19 07:43:41,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 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 07:43:41,223 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 172 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:41,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 269 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:43:41,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-11-19 07:43:41,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 433. [2023-11-19 07:43:41,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 281 states have (on average 1.6476868327402134) internal successors, (463), 411 states have internal predecessors, (463), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 503 transitions. [2023-11-19 07:43:41,259 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 503 transitions. Word has length 39 [2023-11-19 07:43:41,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:41,260 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 503 transitions. [2023-11-19 07:43:41,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:41,261 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 503 transitions. [2023-11-19 07:43:41,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 07:43:41,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:41,263 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:41,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:41,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:41,478 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:41,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:41,479 INFO L85 PathProgramCache]: Analyzing trace with hash 870574670, now seen corresponding path program 1 times [2023-11-19 07:43:41,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:41,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688100937] [2023-11-19 07:43:41,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:41,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:41,508 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:41,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2101446695] [2023-11-19 07:43:41,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:41,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:41,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:41,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:41,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:43:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:41,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:43:41,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:41,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:41,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:41,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:41,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688100937] [2023-11-19 07:43:41,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:41,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101446695] [2023-11-19 07:43:41,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101446695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:41,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:41,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:41,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466100428] [2023-11-19 07:43:41,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:41,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:41,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:41,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:41,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:41,673 INFO L87 Difference]: Start difference. First operand 433 states and 503 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:42,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:42,325 INFO L93 Difference]: Finished difference Result 486 states and 510 transitions. [2023-11-19 07:43:42,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:42,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2023-11-19 07:43:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:42,329 INFO L225 Difference]: With dead ends: 486 [2023-11-19 07:43:42,330 INFO L226 Difference]: Without dead ends: 481 [2023-11-19 07:43:42,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 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 07:43:42,331 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 163 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:42,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 409 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:43:42,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-19 07:43:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 433. [2023-11-19 07:43:42,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 281 states have (on average 1.6298932384341638) internal successors, (458), 411 states have internal predecessors, (458), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:42,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 498 transitions. [2023-11-19 07:43:42,350 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 498 transitions. Word has length 41 [2023-11-19 07:43:42,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:42,351 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 498 transitions. [2023-11-19 07:43:42,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:42,351 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 498 transitions. [2023-11-19 07:43:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 07:43:42,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:42,353 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:42,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:42,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:42,573 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:42,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:42,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1218011089, now seen corresponding path program 1 times [2023-11-19 07:43:42,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:42,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524696097] [2023-11-19 07:43:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:42,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:42,594 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:42,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [141134426] [2023-11-19 07:43:42,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:42,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:42,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:42,601 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:42,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:43:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:42,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:43:42,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:42,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:42,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:42,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524696097] [2023-11-19 07:43:42,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:42,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141134426] [2023-11-19 07:43:42,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141134426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:42,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:42,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:42,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195239779] [2023-11-19 07:43:42,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:42,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:42,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:42,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:42,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:42,722 INFO L87 Difference]: Start difference. First operand 433 states and 498 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:43,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:43,052 INFO L93 Difference]: Finished difference Result 486 states and 505 transitions. [2023-11-19 07:43:43,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:43,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2023-11-19 07:43:43,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:43,056 INFO L225 Difference]: With dead ends: 486 [2023-11-19 07:43:43,056 INFO L226 Difference]: Without dead ends: 481 [2023-11-19 07:43:43,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 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 07:43:43,058 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 157 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:43,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 414 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:43:43,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-19 07:43:43,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 433. [2023-11-19 07:43:43,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 281 states have (on average 1.612099644128114) internal successors, (453), 411 states have internal predecessors, (453), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:43,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 493 transitions. [2023-11-19 07:43:43,076 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 493 transitions. Word has length 42 [2023-11-19 07:43:43,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:43,077 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 493 transitions. [2023-11-19 07:43:43,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:43,077 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 493 transitions. [2023-11-19 07:43:43,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 07:43:43,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:43,079 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:43,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:43,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:43,301 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:43,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:43,302 INFO L85 PathProgramCache]: Analyzing trace with hash -896361808, now seen corresponding path program 1 times [2023-11-19 07:43:43,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:43,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578364726] [2023-11-19 07:43:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:43,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:43,316 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:43,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767731971] [2023-11-19 07:43:43,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:43,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:43,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:43,318 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:43,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:43:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:43,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:43,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:43,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:43,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:43,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578364726] [2023-11-19 07:43:43,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:43,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767731971] [2023-11-19 07:43:43,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767731971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:43,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:43,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:43,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484933219] [2023-11-19 07:43:43,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:43,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:43,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:43,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:43,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:43,453 INFO L87 Difference]: Start difference. First operand 433 states and 493 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:44,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:44,083 INFO L93 Difference]: Finished difference Result 481 states and 500 transitions. [2023-11-19 07:43:44,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:44,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2023-11-19 07:43:44,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:44,087 INFO L225 Difference]: With dead ends: 481 [2023-11-19 07:43:44,087 INFO L226 Difference]: Without dead ends: 479 [2023-11-19 07:43:44,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:44,089 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 327 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:44,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 356 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:43:44,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-19 07:43:44,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 433. [2023-11-19 07:43:44,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 281 states have (on average 1.604982206405694) internal successors, (451), 411 states have internal predecessors, (451), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 491 transitions. [2023-11-19 07:43:44,118 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 491 transitions. Word has length 43 [2023-11-19 07:43:44,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:44,118 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 491 transitions. [2023-11-19 07:43:44,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:44,119 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 491 transitions. [2023-11-19 07:43:44,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 07:43:44,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:44,121 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:44,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:44,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:44,338 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:44,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:44,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2017412173, now seen corresponding path program 1 times [2023-11-19 07:43:44,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:44,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611074922] [2023-11-19 07:43:44,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:44,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:44,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:44,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919303837] [2023-11-19 07:43:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:44,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:44,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:44,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:44,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:43:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:44,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:44,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:44,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:44,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:44,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611074922] [2023-11-19 07:43:44,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:44,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919303837] [2023-11-19 07:43:44,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919303837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:44,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:44,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:44,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769167301] [2023-11-19 07:43:44,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:44,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:44,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:44,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:44,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:44,485 INFO L87 Difference]: Start difference. First operand 433 states and 491 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:46,267 INFO L93 Difference]: Finished difference Result 479 states and 498 transitions. [2023-11-19 07:43:46,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:46,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2023-11-19 07:43:46,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:46,272 INFO L225 Difference]: With dead ends: 479 [2023-11-19 07:43:46,272 INFO L226 Difference]: Without dead ends: 477 [2023-11-19 07:43:46,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:46,274 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 171 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:46,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 438 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 07:43:46,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-11-19 07:43:46,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 433. [2023-11-19 07:43:46,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 281 states have (on average 1.597864768683274) internal successors, (449), 411 states have internal predecessors, (449), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:46,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 489 transitions. [2023-11-19 07:43:46,296 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 489 transitions. Word has length 44 [2023-11-19 07:43:46,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:46,296 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 489 transitions. [2023-11-19 07:43:46,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:46,297 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 489 transitions. [2023-11-19 07:43:46,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 07:43:46,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:46,298 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:46,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:46,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:43:46,525 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:46,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:46,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1248572556, now seen corresponding path program 1 times [2023-11-19 07:43:46,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:46,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219274128] [2023-11-19 07:43:46,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:46,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:46,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:46,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [184198331] [2023-11-19 07:43:46,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:46,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:46,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:46,566 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:46,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:43:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:46,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:43:46,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:46,875 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:46,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:46,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:46,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219274128] [2023-11-19 07:43:46,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:46,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184198331] [2023-11-19 07:43:46,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184198331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:46,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:46,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:46,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40962917] [2023-11-19 07:43:46,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:46,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:46,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:46,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:46,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:46,880 INFO L87 Difference]: Start difference. First operand 433 states and 489 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:47,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:47,350 INFO L93 Difference]: Finished difference Result 477 states and 496 transitions. [2023-11-19 07:43:47,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:47,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-19 07:43:47,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:47,354 INFO L225 Difference]: With dead ends: 477 [2023-11-19 07:43:47,354 INFO L226 Difference]: Without dead ends: 463 [2023-11-19 07:43:47,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 07:43:47,355 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 134 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:47,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 251 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:43:47,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-11-19 07:43:47,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 436. [2023-11-19 07:43:47,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 284 states have (on average 1.5528169014084507) internal successors, (441), 414 states have internal predecessors, (441), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 481 transitions. [2023-11-19 07:43:47,376 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 481 transitions. Word has length 47 [2023-11-19 07:43:47,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:47,376 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 481 transitions. [2023-11-19 07:43:47,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:47,376 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 481 transitions. [2023-11-19 07:43:47,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 07:43:47,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:47,378 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:47,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:47,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:47,599 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:47,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:47,599 INFO L85 PathProgramCache]: Analyzing trace with hash -51043465, now seen corresponding path program 1 times [2023-11-19 07:43:47,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:47,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482516913] [2023-11-19 07:43:47,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:47,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:47,613 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:47,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671195682] [2023-11-19 07:43:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:47,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:47,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:47,615 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:47,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:43:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:47,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:47,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:47,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:47,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:47,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482516913] [2023-11-19 07:43:47,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:47,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671195682] [2023-11-19 07:43:47,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671195682] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:47,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:47,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:47,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485115368] [2023-11-19 07:43:47,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:47,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:47,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:47,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:47,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:47,839 INFO L87 Difference]: Start difference. First operand 436 states and 481 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:49,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:49,538 INFO L93 Difference]: Finished difference Result 463 states and 482 transitions. [2023-11-19 07:43:49,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:49,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2023-11-19 07:43:49,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:49,542 INFO L225 Difference]: With dead ends: 463 [2023-11-19 07:43:49,542 INFO L226 Difference]: Without dead ends: 460 [2023-11-19 07:43:49,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:49,543 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 151 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:49,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 374 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 07:43:49,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-11-19 07:43:49,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 436. [2023-11-19 07:43:49,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 284 states have (on average 1.5422535211267605) internal successors, (438), 414 states have internal predecessors, (438), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:43:49,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 478 transitions. [2023-11-19 07:43:49,563 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 478 transitions. Word has length 48 [2023-11-19 07:43:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:49,564 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 478 transitions. [2023-11-19 07:43:49,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:49,564 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 478 transitions. [2023-11-19 07:43:49,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 07:43:49,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:49,565 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:49,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-19 07:43:49,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:49,782 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:49,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:49,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1852558139, now seen corresponding path program 1 times [2023-11-19 07:43:49,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:49,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749701270] [2023-11-19 07:43:49,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:49,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:49,805 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:49,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338885454] [2023-11-19 07:43:49,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:49,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:49,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:49,807 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:49,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:43:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:49,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:43:49,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:50,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:50,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:50,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749701270] [2023-11-19 07:43:50,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:50,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338885454] [2023-11-19 07:43:50,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338885454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:50,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:50,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:50,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463146708] [2023-11-19 07:43:50,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:50,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:50,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:50,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:50,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:50,160 INFO L87 Difference]: Start difference. First operand 436 states and 478 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:51,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:51,102 INFO L93 Difference]: Finished difference Result 460 states and 479 transitions. [2023-11-19 07:43:51,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:51,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2023-11-19 07:43:51,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:51,106 INFO L225 Difference]: With dead ends: 460 [2023-11-19 07:43:51,106 INFO L226 Difference]: Without dead ends: 426 [2023-11-19 07:43:51,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:51,107 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 143 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:51,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 336 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:43:51,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-19 07:43:51,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 407. [2023-11-19 07:43:51,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 257 states have (on average 1.583657587548638) internal successors, (407), 387 states have internal predecessors, (407), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:43:51,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 443 transitions. [2023-11-19 07:43:51,124 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 443 transitions. Word has length 52 [2023-11-19 07:43:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:51,124 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 443 transitions. [2023-11-19 07:43:51,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:43:51,124 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 443 transitions. [2023-11-19 07:43:51,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 07:43:51,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:51,126 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:51,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:51,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:43:51,346 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:51,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:51,347 INFO L85 PathProgramCache]: Analyzing trace with hash 386547261, now seen corresponding path program 1 times [2023-11-19 07:43:51,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:51,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904127756] [2023-11-19 07:43:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:51,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:51,361 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:51,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719338261] [2023-11-19 07:43:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:51,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:51,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:51,370 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:51,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:43:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:51,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:43:51,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:43:51,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:51,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:51,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904127756] [2023-11-19 07:43:51,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:51,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719338261] [2023-11-19 07:43:51,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719338261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:51,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:51,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:51,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336131687] [2023-11-19 07:43:51,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:51,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:51,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:51,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:51,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:51,487 INFO L87 Difference]: Start difference. First operand 407 states and 443 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:43:52,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:52,339 INFO L93 Difference]: Finished difference Result 407 states and 443 transitions. [2023-11-19 07:43:52,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:52,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 84 [2023-11-19 07:43:52,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:52,342 INFO L225 Difference]: With dead ends: 407 [2023-11-19 07:43:52,342 INFO L226 Difference]: Without dead ends: 403 [2023-11-19 07:43:52,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 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 07:43:52,343 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 241 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:52,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 156 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:43:52,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-19 07:43:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2023-11-19 07:43:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 257 states have (on average 1.5680933852140078) internal successors, (403), 383 states have internal predecessors, (403), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:43:52,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 439 transitions. [2023-11-19 07:43:52,362 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 439 transitions. Word has length 84 [2023-11-19 07:43:52,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:52,363 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 439 transitions. [2023-11-19 07:43:52,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:43:52,363 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 439 transitions. [2023-11-19 07:43:52,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 07:43:52,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:52,368 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:52,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:52,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:52,586 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:52,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:52,586 INFO L85 PathProgramCache]: Analyzing trace with hash -901936631, now seen corresponding path program 1 times [2023-11-19 07:43:52,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:52,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648992769] [2023-11-19 07:43:52,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:52,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:52,601 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:52,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37034389] [2023-11-19 07:43:52,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:52,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:52,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:52,603 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:52,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:43:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:52,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:43:52,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:52,723 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:43:52,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:52,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:52,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648992769] [2023-11-19 07:43:52,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:52,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37034389] [2023-11-19 07:43:52,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37034389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:52,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:52,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:52,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451873491] [2023-11-19 07:43:52,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:52,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:52,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:52,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:52,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:52,727 INFO L87 Difference]: Start difference. First operand 403 states and 439 transitions. Second operand has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:43:53,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:53,296 INFO L93 Difference]: Finished difference Result 403 states and 439 transitions. [2023-11-19 07:43:53,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:53,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2023-11-19 07:43:53,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:53,300 INFO L225 Difference]: With dead ends: 403 [2023-11-19 07:43:53,300 INFO L226 Difference]: Without dead ends: 400 [2023-11-19 07:43:53,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 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 07:43:53,301 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 213 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:53,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 207 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:43:53,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2023-11-19 07:43:53,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2023-11-19 07:43:53,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 257 states have (on average 1.556420233463035) internal successors, (400), 380 states have internal predecessors, (400), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:43:53,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 436 transitions. [2023-11-19 07:43:53,320 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 436 transitions. Word has length 85 [2023-11-19 07:43:53,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:53,321 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 436 transitions. [2023-11-19 07:43:53,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:43:53,321 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 436 transitions. [2023-11-19 07:43:53,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 07:43:53,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:53,328 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:53,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:53,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:43:53,548 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:53,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:53,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1031775984, now seen corresponding path program 1 times [2023-11-19 07:43:53,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:53,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479624427] [2023-11-19 07:43:53,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:53,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:53,569 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:53,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291888845] [2023-11-19 07:43:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:53,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:53,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:53,574 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:53,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:43:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:53,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:43:53,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:43:53,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:53,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:53,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479624427] [2023-11-19 07:43:53,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:53,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291888845] [2023-11-19 07:43:53,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291888845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:53,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:53,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:53,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463316004] [2023-11-19 07:43:53,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:53,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:53,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:53,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:53,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:53,907 INFO L87 Difference]: Start difference. First operand 400 states and 436 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:43:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:54,033 INFO L93 Difference]: Finished difference Result 400 states and 436 transitions. [2023-11-19 07:43:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:43:54,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 87 [2023-11-19 07:43:54,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:54,037 INFO L225 Difference]: With dead ends: 400 [2023-11-19 07:43:54,037 INFO L226 Difference]: Without dead ends: 396 [2023-11-19 07:43:54,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 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 07:43:54,039 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 209 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:54,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 498 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:54,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-11-19 07:43:54,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2023-11-19 07:43:54,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 257 states have (on average 1.5252918287937742) internal successors, (392), 376 states have internal predecessors, (392), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:43:54,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 428 transitions. [2023-11-19 07:43:54,062 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 428 transitions. Word has length 87 [2023-11-19 07:43:54,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:54,063 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 428 transitions. [2023-11-19 07:43:54,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:43:54,063 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 428 transitions. [2023-11-19 07:43:54,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 07:43:54,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:54,067 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:54,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:54,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:43:54,282 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:54,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:54,282 INFO L85 PathProgramCache]: Analyzing trace with hash 822292939, now seen corresponding path program 1 times [2023-11-19 07:43:54,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:54,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012442243] [2023-11-19 07:43:54,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:54,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:54,304 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:54,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1550344330] [2023-11-19 07:43:54,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:54,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:54,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:54,306 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:54,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:43:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:54,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:54,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:54,468 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:43:54,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:54,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:54,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012442243] [2023-11-19 07:43:54,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:54,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550344330] [2023-11-19 07:43:54,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550344330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:54,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:54,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:54,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100656140] [2023-11-19 07:43:54,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:54,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:54,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:54,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:54,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:54,474 INFO L87 Difference]: Start difference. First operand 396 states and 428 transitions. Second operand has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:43:54,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:54,598 INFO L93 Difference]: Finished difference Result 411 states and 428 transitions. [2023-11-19 07:43:54,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:54,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 87 [2023-11-19 07:43:54,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:54,602 INFO L225 Difference]: With dead ends: 411 [2023-11-19 07:43:54,603 INFO L226 Difference]: Without dead ends: 403 [2023-11-19 07:43:54,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:54,604 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 315 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:54,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 493 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:54,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-19 07:43:54,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 388. [2023-11-19 07:43:54,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 257 states have (on average 1.4941634241245136) internal successors, (384), 368 states have internal predecessors, (384), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:43:54,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 420 transitions. [2023-11-19 07:43:54,627 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 420 transitions. Word has length 87 [2023-11-19 07:43:54,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:54,628 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 420 transitions. [2023-11-19 07:43:54,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:43:54,628 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 420 transitions. [2023-11-19 07:43:54,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 07:43:54,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:54,629 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:54,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:54,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:43:54,850 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:54,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:54,850 INFO L85 PathProgramCache]: Analyzing trace with hash -600718926, now seen corresponding path program 1 times [2023-11-19 07:43:54,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:54,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634014240] [2023-11-19 07:43:54,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:54,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:54,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:54,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1897430239] [2023-11-19 07:43:54,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:54,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:54,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:54,866 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:54,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:43:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:54,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:54,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:43:55,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:55,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:55,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634014240] [2023-11-19 07:43:55,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:55,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897430239] [2023-11-19 07:43:55,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897430239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:55,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:55,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:55,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052915529] [2023-11-19 07:43:55,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:55,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:55,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:55,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:55,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:55,021 INFO L87 Difference]: Start difference. First operand 388 states and 420 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:43:55,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:55,402 INFO L93 Difference]: Finished difference Result 403 states and 420 transitions. [2023-11-19 07:43:55,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:55,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 89 [2023-11-19 07:43:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:55,406 INFO L225 Difference]: With dead ends: 403 [2023-11-19 07:43:55,406 INFO L226 Difference]: Without dead ends: 395 [2023-11-19 07:43:55,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 07:43:55,407 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 60 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:55,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 419 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:43:55,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-11-19 07:43:55,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 388. [2023-11-19 07:43:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 257 states have (on average 1.4630350194552528) internal successors, (376), 368 states have internal predecessors, (376), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:43:55,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 412 transitions. [2023-11-19 07:43:55,426 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 412 transitions. Word has length 89 [2023-11-19 07:43:55,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:55,427 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 412 transitions. [2023-11-19 07:43:55,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:43:55,427 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 412 transitions. [2023-11-19 07:43:55,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 07:43:55,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:55,429 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:55,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:55,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 07:43:55,639 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:55,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:55,640 INFO L85 PathProgramCache]: Analyzing trace with hash -278722615, now seen corresponding path program 1 times [2023-11-19 07:43:55,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:55,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812912863] [2023-11-19 07:43:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:55,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:55,661 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:55,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41355384] [2023-11-19 07:43:55,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:55,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:55,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:55,663 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:55,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:43:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:55,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:55,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:55,812 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:43:55,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:43:55,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:55,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812912863] [2023-11-19 07:43:55,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:55,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41355384] [2023-11-19 07:43:55,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41355384] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:43:55,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:43:55,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:43:55,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558475737] [2023-11-19 07:43:55,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:55,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:43:55,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:55,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:43:55,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:43:55,946 INFO L87 Difference]: Start difference. First operand 388 states and 412 transitions. Second operand has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:43:56,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:56,174 INFO L93 Difference]: Finished difference Result 658 states and 693 transitions. [2023-11-19 07:43:56,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:43:56,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2023-11-19 07:43:56,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:56,179 INFO L225 Difference]: With dead ends: 658 [2023-11-19 07:43:56,180 INFO L226 Difference]: Without dead ends: 650 [2023-11-19 07:43:56,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:43:56,181 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 672 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:56,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 725 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:43:56,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-11-19 07:43:56,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 450. [2023-11-19 07:43:56,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 320 states have (on average 1.4625) internal successors, (468), 425 states have internal predecessors, (468), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:43:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 514 transitions. [2023-11-19 07:43:56,206 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 514 transitions. Word has length 88 [2023-11-19 07:43:56,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:56,207 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 514 transitions. [2023-11-19 07:43:56,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:43:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 514 transitions. [2023-11-19 07:43:56,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-19 07:43:56,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:56,209 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:56,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:56,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 07:43:56,426 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:56,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:56,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1460160748, now seen corresponding path program 1 times [2023-11-19 07:43:56,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:56,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064984773] [2023-11-19 07:43:56,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:56,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:56,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:56,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1970396365] [2023-11-19 07:43:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:56,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:56,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:56,440 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:56,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:43:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:56,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:43:56,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:43:56,634 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:56,839 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:43:56,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:56,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064984773] [2023-11-19 07:43:56,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:56,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970396365] [2023-11-19 07:43:56,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970396365] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:43:56,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:43:56,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:43:56,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939110109] [2023-11-19 07:43:56,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:56,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:43:56,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:56,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:43:56,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:43:56,842 INFO L87 Difference]: Start difference. First operand 450 states and 514 transitions. Second operand has 6 states, 5 states have (on average 27.6) internal successors, (138), 6 states have internal predecessors, (138), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:43:57,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:57,099 INFO L93 Difference]: Finished difference Result 656 states and 689 transitions. [2023-11-19 07:43:57,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:43:57,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 6 states have internal predecessors, (138), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 99 [2023-11-19 07:43:57,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:57,104 INFO L225 Difference]: With dead ends: 656 [2023-11-19 07:43:57,105 INFO L226 Difference]: Without dead ends: 651 [2023-11-19 07:43:57,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:43:57,106 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1238 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:57,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 829 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:43:57,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2023-11-19 07:43:57,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 455. [2023-11-19 07:43:57,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 328 states have (on average 1.4268292682926829) internal successors, (468), 429 states have internal predecessors, (468), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 07:43:57,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 516 transitions. [2023-11-19 07:43:57,132 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 516 transitions. Word has length 99 [2023-11-19 07:43:57,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:57,132 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 516 transitions. [2023-11-19 07:43:57,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 6 states have internal predecessors, (138), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:43:57,133 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 516 transitions. [2023-11-19 07:43:57,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:43:57,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:57,135 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:57,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:57,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:43:57,350 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:57,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:57,350 INFO L85 PathProgramCache]: Analyzing trace with hash -590433326, now seen corresponding path program 1 times [2023-11-19 07:43:57,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:57,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026457395] [2023-11-19 07:43:57,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:57,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:57,367 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:57,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [263295189] [2023-11-19 07:43:57,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:57,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:57,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:57,369 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:57,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:43:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:57,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:57,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:43:57,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:57,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:57,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026457395] [2023-11-19 07:43:57,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:57,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263295189] [2023-11-19 07:43:57,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263295189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:57,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:57,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:57,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95275099] [2023-11-19 07:43:57,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:57,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:57,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:57,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:57,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:57,567 INFO L87 Difference]: Start difference. First operand 455 states and 516 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:43:57,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:57,983 INFO L93 Difference]: Finished difference Result 462 states and 516 transitions. [2023-11-19 07:43:57,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:57,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 104 [2023-11-19 07:43:57,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:57,987 INFO L225 Difference]: With dead ends: 462 [2023-11-19 07:43:57,987 INFO L226 Difference]: Without dead ends: 461 [2023-11-19 07:43:57,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:57,988 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 53 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:57,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 419 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:43:57,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-19 07:43:58,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 455. [2023-11-19 07:43:58,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 328 states have (on average 1.423780487804878) internal successors, (467), 429 states have internal predecessors, (467), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 07:43:58,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 515 transitions. [2023-11-19 07:43:58,010 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 515 transitions. Word has length 104 [2023-11-19 07:43:58,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:58,011 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 515 transitions. [2023-11-19 07:43:58,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:43:58,011 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 515 transitions. [2023-11-19 07:43:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 07:43:58,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:58,012 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:58,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:58,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:43:58,230 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:58,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1123563715, now seen corresponding path program 1 times [2023-11-19 07:43:58,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:58,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435334251] [2023-11-19 07:43:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:58,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:58,259 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:58,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374669614] [2023-11-19 07:43:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:58,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:58,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:58,262 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:58,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 07:43:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:58,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:43:58,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:58,605 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:43:58,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:58,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:58,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435334251] [2023-11-19 07:43:58,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:58,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374669614] [2023-11-19 07:43:58,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374669614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:58,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:58,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:58,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133134512] [2023-11-19 07:43:58,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:58,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:58,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:58,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:58,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:58,608 INFO L87 Difference]: Start difference. First operand 455 states and 515 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:43:59,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:59,094 INFO L93 Difference]: Finished difference Result 461 states and 515 transitions. [2023-11-19 07:43:59,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:59,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 105 [2023-11-19 07:43:59,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:59,098 INFO L225 Difference]: With dead ends: 461 [2023-11-19 07:43:59,098 INFO L226 Difference]: Without dead ends: 460 [2023-11-19 07:43:59,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 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 07:43:59,099 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 106 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:59,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 350 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:43:59,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-11-19 07:43:59,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 455. [2023-11-19 07:43:59,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 328 states have (on average 1.420731707317073) internal successors, (466), 429 states have internal predecessors, (466), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 07:43:59,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 514 transitions. [2023-11-19 07:43:59,124 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 514 transitions. Word has length 105 [2023-11-19 07:43:59,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:59,125 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 514 transitions. [2023-11-19 07:43:59,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:43:59,125 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 514 transitions. [2023-11-19 07:43:59,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-19 07:43:59,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:59,127 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:59,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:59,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:59,350 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:43:59,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:59,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1663949401, now seen corresponding path program 1 times [2023-11-19 07:43:59,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:59,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231707617] [2023-11-19 07:43:59,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:59,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:59,378 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:59,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841202165] [2023-11-19 07:43:59,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:59,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:59,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:59,380 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:59,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 07:43:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:59,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:43:59,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:59,783 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:43:59,784 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:59,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:59,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231707617] [2023-11-19 07:43:59,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:59,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841202165] [2023-11-19 07:43:59,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841202165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:59,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:59,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:59,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120630017] [2023-11-19 07:43:59,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:59,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:59,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:59,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:59,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:59,787 INFO L87 Difference]: Start difference. First operand 455 states and 514 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:44:00,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:00,819 INFO L93 Difference]: Finished difference Result 460 states and 514 transitions. [2023-11-19 07:44:00,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:44:00,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 120 [2023-11-19 07:44:00,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:00,823 INFO L225 Difference]: With dead ends: 460 [2023-11-19 07:44:00,823 INFO L226 Difference]: Without dead ends: 447 [2023-11-19 07:44:00,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:44:00,824 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 375 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:00,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 326 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:44:00,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-19 07:44:00,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 442. [2023-11-19 07:44:00,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 328 states have (on average 1.3658536585365855) internal successors, (448), 416 states have internal predecessors, (448), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 07:44:00,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 496 transitions. [2023-11-19 07:44:00,865 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 496 transitions. Word has length 120 [2023-11-19 07:44:00,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:00,865 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 496 transitions. [2023-11-19 07:44:00,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:44:00,866 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 496 transitions. [2023-11-19 07:44:00,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-19 07:44:00,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:00,867 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:00,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:01,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:01,094 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:44:01,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:01,094 INFO L85 PathProgramCache]: Analyzing trace with hash -42823788, now seen corresponding path program 1 times [2023-11-19 07:44:01,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:01,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534943811] [2023-11-19 07:44:01,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:01,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:01,105 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:44:01,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300524493] [2023-11-19 07:44:01,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:01,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:01,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:01,107 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:01,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:44:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:01,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:44:01,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:44:01,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:01,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:01,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534943811] [2023-11-19 07:44:01,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:44:01,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300524493] [2023-11-19 07:44:01,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300524493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:01,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:44:01,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-19 07:44:01,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204264476] [2023-11-19 07:44:01,691 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:01,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:44:01,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:01,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:44:01,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:44:01,692 INFO L87 Difference]: Start difference. First operand 442 states and 496 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:44:02,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:02,550 INFO L93 Difference]: Finished difference Result 623 states and 651 transitions. [2023-11-19 07:44:02,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:44:02,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 121 [2023-11-19 07:44:02,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:02,554 INFO L225 Difference]: With dead ends: 623 [2023-11-19 07:44:02,554 INFO L226 Difference]: Without dead ends: 601 [2023-11-19 07:44:02,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:44:02,556 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 304 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:02,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 325 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:44:02,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2023-11-19 07:44:02,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 523. [2023-11-19 07:44:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 404 states have (on average 1.381188118811881) internal successors, (558), 492 states have internal predecessors, (558), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:44:02,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 616 transitions. [2023-11-19 07:44:02,594 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 616 transitions. Word has length 121 [2023-11-19 07:44:02,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:02,594 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 616 transitions. [2023-11-19 07:44:02,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:44:02,595 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 616 transitions. [2023-11-19 07:44:02,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-19 07:44:02,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:02,597 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:02,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:02,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:02,809 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:44:02,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:02,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1327537335, now seen corresponding path program 1 times [2023-11-19 07:44:02,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:02,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492460224] [2023-11-19 07:44:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:02,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:02,823 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:44:02,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650508418] [2023-11-19 07:44:02,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:02,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:02,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:02,825 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:02,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 07:44:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:02,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:44:02,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:44:03,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:03,266 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:44:03,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:03,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492460224] [2023-11-19 07:44:03,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:44:03,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650508418] [2023-11-19 07:44:03,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650508418] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:03,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:44:03,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:44:03,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959122175] [2023-11-19 07:44:03,268 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:03,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:44:03,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:03,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:44:03,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:44:03,270 INFO L87 Difference]: Start difference. First operand 523 states and 616 transitions. Second operand has 6 states, 5 states have (on average 32.8) internal successors, (164), 6 states have internal predecessors, (164), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:44:04,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:04,237 INFO L93 Difference]: Finished difference Result 595 states and 629 transitions. [2023-11-19 07:44:04,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:44:04,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 32.8) internal successors, (164), 6 states have internal predecessors, (164), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 122 [2023-11-19 07:44:04,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:04,242 INFO L225 Difference]: With dead ends: 595 [2023-11-19 07:44:04,242 INFO L226 Difference]: Without dead ends: 590 [2023-11-19 07:44:04,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:44:04,243 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 799 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:04,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 455 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:44:04,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2023-11-19 07:44:04,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 519. [2023-11-19 07:44:04,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 404 states have (on average 1.358910891089109) internal successors, (549), 488 states have internal predecessors, (549), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:44:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 607 transitions. [2023-11-19 07:44:04,301 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 607 transitions. Word has length 122 [2023-11-19 07:44:04,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:04,301 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 607 transitions. [2023-11-19 07:44:04,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.8) internal successors, (164), 6 states have internal predecessors, (164), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:44:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 607 transitions. [2023-11-19 07:44:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-19 07:44:04,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:04,304 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:04,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:04,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-19 07:44:04,529 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:44:04,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:04,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1796015670, now seen corresponding path program 1 times [2023-11-19 07:44:04,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:04,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801110936] [2023-11-19 07:44:04,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:04,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:04,545 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:44:04,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1042084124] [2023-11-19 07:44:04,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:04,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:04,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:04,547 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:04,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-19 07:44:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:04,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:44:04,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:04,906 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:44:04,906 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:05,118 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:44:05,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:05,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801110936] [2023-11-19 07:44:05,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:44:05,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042084124] [2023-11-19 07:44:05,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042084124] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:05,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:44:05,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:44:05,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147517493] [2023-11-19 07:44:05,123 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:05,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:44:05,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:05,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:44:05,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:44:05,126 INFO L87 Difference]: Start difference. First operand 519 states and 607 transitions. Second operand has 6 states, 5 states have (on average 33.2) internal successors, (166), 6 states have internal predecessors, (166), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:44:05,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:05,979 INFO L93 Difference]: Finished difference Result 588 states and 620 transitions. [2023-11-19 07:44:05,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:44:05,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.2) internal successors, (166), 6 states have internal predecessors, (166), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 123 [2023-11-19 07:44:05,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:05,985 INFO L225 Difference]: With dead ends: 588 [2023-11-19 07:44:05,985 INFO L226 Difference]: Without dead ends: 583 [2023-11-19 07:44:05,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:44:05,986 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 777 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:05,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 409 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:44:05,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-11-19 07:44:06,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 515. [2023-11-19 07:44:06,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 404 states have (on average 1.3366336633663367) internal successors, (540), 484 states have internal predecessors, (540), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:44:06,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 598 transitions. [2023-11-19 07:44:06,043 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 598 transitions. Word has length 123 [2023-11-19 07:44:06,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:06,043 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 598 transitions. [2023-11-19 07:44:06,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.2) internal successors, (166), 6 states have internal predecessors, (166), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:44:06,044 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 598 transitions. [2023-11-19 07:44:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:44:06,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:06,046 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:06,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:06,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-19 07:44:06,268 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:44:06,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:06,269 INFO L85 PathProgramCache]: Analyzing trace with hash -158088981, now seen corresponding path program 1 times [2023-11-19 07:44:06,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:06,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991027692] [2023-11-19 07:44:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:06,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:06,287 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:44:06,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134742616] [2023-11-19 07:44:06,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:06,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:06,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:06,289 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:06,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-19 07:44:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:06,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:44:06,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:06,875 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:44:06,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:44:07,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:07,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991027692] [2023-11-19 07:44:07,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:44:07,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134742616] [2023-11-19 07:44:07,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134742616] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:07,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:44:07,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-19 07:44:07,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448307498] [2023-11-19 07:44:07,324 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:07,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:44:07,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:07,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:44:07,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:44:07,327 INFO L87 Difference]: Start difference. First operand 515 states and 598 transitions. Second operand has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:44:11,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:11,423 INFO L93 Difference]: Finished difference Result 576 states and 611 transitions. [2023-11-19 07:44:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:44:11,424 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 124 [2023-11-19 07:44:11,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:11,427 INFO L225 Difference]: With dead ends: 576 [2023-11-19 07:44:11,427 INFO L226 Difference]: Without dead ends: 423 [2023-11-19 07:44:11,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:44:11,429 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 584 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:11,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 522 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-19 07:44:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-11-19 07:44:11,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 407. [2023-11-19 07:44:11,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 304 states have (on average 1.3125) internal successors, (399), 382 states have internal predecessors, (399), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:44:11,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 445 transitions. [2023-11-19 07:44:11,457 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 445 transitions. Word has length 124 [2023-11-19 07:44:11,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:11,458 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 445 transitions. [2023-11-19 07:44:11,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:44:11,458 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 445 transitions. [2023-11-19 07:44:11,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-19 07:44:11,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:11,461 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:11,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:11,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:11,684 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:44:11,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:11,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1665611949, now seen corresponding path program 1 times [2023-11-19 07:44:11,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:11,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896126833] [2023-11-19 07:44:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:11,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:11,698 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:44:11,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429330421] [2023-11-19 07:44:11,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:11,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:11,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:11,701 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:11,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-19 07:44:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:11,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:44:11,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:12,498 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:44:12,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:13,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:13,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896126833] [2023-11-19 07:44:13,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:44:13,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429330421] [2023-11-19 07:44:13,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429330421] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:13,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:44:13,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-19 07:44:13,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572859524] [2023-11-19 07:44:13,063 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:13,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:44:13,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:13,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:44:13,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:44:13,067 INFO L87 Difference]: Start difference. First operand 407 states and 445 transitions. Second operand has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:44:14,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:14,033 INFO L93 Difference]: Finished difference Result 423 states and 445 transitions. [2023-11-19 07:44:14,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:44:14,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 170 [2023-11-19 07:44:14,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:14,038 INFO L225 Difference]: With dead ends: 423 [2023-11-19 07:44:14,038 INFO L226 Difference]: Without dead ends: 422 [2023-11-19 07:44:14,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:44:14,039 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 49 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:14,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 439 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:44:14,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-11-19 07:44:14,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 407. [2023-11-19 07:44:14,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 304 states have (on average 1.3092105263157894) internal successors, (398), 382 states have internal predecessors, (398), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:44:14,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 444 transitions. [2023-11-19 07:44:14,076 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 444 transitions. Word has length 170 [2023-11-19 07:44:14,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:14,077 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 444 transitions. [2023-11-19 07:44:14,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:44:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 444 transitions. [2023-11-19 07:44:14,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-19 07:44:14,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:14,082 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:14,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:14,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:14,305 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:44:14,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:14,306 INFO L85 PathProgramCache]: Analyzing trace with hash 94363053, now seen corresponding path program 1 times [2023-11-19 07:44:14,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:14,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010393663] [2023-11-19 07:44:14,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:14,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:14,322 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:44:14,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [561307268] [2023-11-19 07:44:14,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:14,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:14,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:14,325 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:14,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-19 07:44:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:14,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:44:14,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:44:15,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:15,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:15,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010393663] [2023-11-19 07:44:15,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:44:15,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561307268] [2023-11-19 07:44:15,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561307268] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:15,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:44:15,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-19 07:44:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032091801] [2023-11-19 07:44:15,234 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:15,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:44:15,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:15,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:44:15,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:44:15,236 INFO L87 Difference]: Start difference. First operand 407 states and 444 transitions. Second operand has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 07:44:16,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:16,185 INFO L93 Difference]: Finished difference Result 422 states and 444 transitions. [2023-11-19 07:44:16,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:44:16,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 171 [2023-11-19 07:44:16,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:16,189 INFO L225 Difference]: With dead ends: 422 [2023-11-19 07:44:16,189 INFO L226 Difference]: Without dead ends: 421 [2023-11-19 07:44:16,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:44:16,190 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 87 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:16,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 526 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:44:16,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-11-19 07:44:16,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 407. [2023-11-19 07:44:16,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 304 states have (on average 1.305921052631579) internal successors, (397), 382 states have internal predecessors, (397), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:44:16,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 443 transitions. [2023-11-19 07:44:16,217 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 443 transitions. Word has length 171 [2023-11-19 07:44:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:16,218 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 443 transitions. [2023-11-19 07:44:16,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 07:44:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 443 transitions. [2023-11-19 07:44:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-19 07:44:16,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:16,222 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:16,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:16,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-19 07:44:16,442 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:44:16,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:16,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2033680207, now seen corresponding path program 1 times [2023-11-19 07:44:16,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:16,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986351407] [2023-11-19 07:44:16,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:16,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:16,463 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:44:16,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [606025562] [2023-11-19 07:44:16,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:16,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:16,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:16,466 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:16,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-19 07:44:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:16,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:44:16,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:44:18,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:44:19,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:19,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986351407] [2023-11-19 07:44:19,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:44:19,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606025562] [2023-11-19 07:44:19,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606025562] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:19,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:44:19,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-11-19 07:44:19,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837314936] [2023-11-19 07:44:19,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:19,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:44:19,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:19,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:44:19,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:44:19,697 INFO L87 Difference]: Start difference. First operand 407 states and 443 transitions. Second operand has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-19 07:44:23,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:23,439 INFO L93 Difference]: Finished difference Result 421 states and 443 transitions. [2023-11-19 07:44:23,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:44:23,440 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 174 [2023-11-19 07:44:23,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:23,443 INFO L225 Difference]: With dead ends: 421 [2023-11-19 07:44:23,444 INFO L226 Difference]: Without dead ends: 413 [2023-11-19 07:44:23,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:44:23,445 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 611 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:23,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 256 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-19 07:44:23,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-11-19 07:44:23,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 407. [2023-11-19 07:44:23,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 304 states have (on average 1.2796052631578947) internal successors, (389), 382 states have internal predecessors, (389), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:44:23,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 435 transitions. [2023-11-19 07:44:23,481 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 435 transitions. Word has length 174 [2023-11-19 07:44:23,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:23,482 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 435 transitions. [2023-11-19 07:44:23,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-19 07:44:23,483 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 435 transitions. [2023-11-19 07:44:23,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-19 07:44:23,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:23,485 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:23,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-19 07:44:23,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:23,702 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-19 07:44:23,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:23,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1785882623, now seen corresponding path program 1 times [2023-11-19 07:44:23,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:23,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856101095] [2023-11-19 07:44:23,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:23,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:23,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:44:23,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038265211] [2023-11-19 07:44:23,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:23,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:23,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:23,725 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:23,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1cddec-1084-4f95-baad-f0d4feac239d/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-19 07:44:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:23,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:44:23,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:26,023 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:44:26,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:44:26,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:26,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856101095] [2023-11-19 07:44:26,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:44:26,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038265211] [2023-11-19 07:44:26,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038265211] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:44:26,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:44:26,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-11-19 07:44:26,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308175822] [2023-11-19 07:44:26,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:26,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:44:26,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:26,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:44:26,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:44:26,729 INFO L87 Difference]: Start difference. First operand 407 states and 435 transitions. Second operand has 11 states, 10 states have (on average 26.8) internal successors, (268), 11 states have internal predecessors, (268), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24)