./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/sum01_bug02.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/sum01_bug02.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme --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 29d100da65e2ae9d5c43d48b49216d155078158e341858baee0b08b697e15c8e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:58,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:58,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 10:41:58,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:58,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:58,277 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:58,278 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:58,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:58,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:41:58,280 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:41:58,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:41:58,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:41:58,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:58,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:58,283 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:58,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:58,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:41:58,285 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:41:58,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:41:58,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:41:58,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:58,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:41:58,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:41:58,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:41:58,289 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:41:58,289 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:41:58,290 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:41:58,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:58,291 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:58,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:58,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:58,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:41:58,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:41:58,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:58,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:58,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:41:58,294 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:41:58,294 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:41:58,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:41:58,295 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:41:58,295 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:41:58,295 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:41:58,296 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:41:58,296 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:41:58,296 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_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29d100da65e2ae9d5c43d48b49216d155078158e341858baee0b08b697e15c8e [2023-11-26 10:41:58,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:58,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:58,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:58,653 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:58,654 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:58,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/loops/sum01_bug02.i [2023-11-26 10:42:01,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:01,971 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:01,971 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/sv-benchmarks/c/loops/sum01_bug02.i [2023-11-26 10:42:01,979 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/data/7aa609ff1/11d43efefdef4eaabe86510280442047/FLAG6cafe33ec [2023-11-26 10:42:01,994 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/data/7aa609ff1/11d43efefdef4eaabe86510280442047 [2023-11-26 10:42:01,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:01,999 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:02,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:02,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:02,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:02,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:01" (1/1) ... [2023-11-26 10:42:02,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661450c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02, skipping insertion in model container [2023-11-26 10:42:02,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:01" (1/1) ... [2023-11-26 10:42:02,030 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:02,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:02,202 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:02,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:02,234 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:02,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02 WrapperNode [2023-11-26 10:42:02,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:02,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:02,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:02,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:02,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,252 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,274 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2023-11-26 10:42:02,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:02,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:02,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:02,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:02,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,299 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,318 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:42:02,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,343 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:02,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:02,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:02,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:02,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (1/1) ... [2023-11-26 10:42:02,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:02,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:02,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:02,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:42:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:02,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:02,501 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:02,504 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:02,703 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:02,746 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:02,747 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:42:02,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:02 BoogieIcfgContainer [2023-11-26 10:42:02,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:02,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:42:02,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:42:02,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:42:02,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:42:01" (1/3) ... [2023-11-26 10:42:02,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58175a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:02, skipping insertion in model container [2023-11-26 10:42:02,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:02" (2/3) ... [2023-11-26 10:42:02,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58175a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:02, skipping insertion in model container [2023-11-26 10:42:02,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:02" (3/3) ... [2023-11-26 10:42:02,766 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02.i [2023-11-26 10:42:02,793 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:42:02,793 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-26 10:42:02,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:02,849 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;@7c8c6ae9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:02,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 10:42:02,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 10:42:02,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:02,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 10:42:02,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:02,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:02,866 INFO L85 PathProgramCache]: Analyzing trace with hash 2867881, now seen corresponding path program 1 times [2023-11-26 10:42:02,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:02,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400531600] [2023-11-26 10:42:02,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:02,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:03,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:03,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400531600] [2023-11-26 10:42:03,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400531600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:03,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:03,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:03,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128719026] [2023-11-26 10:42:03,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:03,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:03,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:03,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:03,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:03,115 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-26 10:42:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:03,147 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2023-11-26 10:42:03,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:42:03,150 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-26 10:42:03,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:03,156 INFO L225 Difference]: With dead ends: 36 [2023-11-26 10:42:03,157 INFO L226 Difference]: Without dead ends: 21 [2023-11-26 10:42:03,159 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 [2023-11-26 10:42:03,162 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:03,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-26 10:42:03,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-26 10:42:03,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 20 states have internal predecessors, (22), 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) [2023-11-26 10:42:03,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-11-26 10:42:03,190 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 4 [2023-11-26 10:42:03,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:03,190 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-11-26 10:42:03,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-26 10:42:03,191 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-11-26 10:42:03,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 10:42:03,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:03,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 10:42:03,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:42:03,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:03,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:03,192 INFO L85 PathProgramCache]: Analyzing trace with hash 2867106, now seen corresponding path program 1 times [2023-11-26 10:42:03,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:03,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833314176] [2023-11-26 10:42:03,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:03,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:03,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:03,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:03,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833314176] [2023-11-26 10:42:03,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833314176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:03,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:03,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:42:03,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295999323] [2023-11-26 10:42:03,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:03,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:03,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:03,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:03,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:03,287 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-26 10:42:03,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:03,305 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2023-11-26 10:42:03,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:03,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-26 10:42:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:03,306 INFO L225 Difference]: With dead ends: 21 [2023-11-26 10:42:03,306 INFO L226 Difference]: Without dead ends: 20 [2023-11-26 10:42:03,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:03,309 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:03,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 14 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:03,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-26 10:42:03,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-26 10:42:03,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 19 states have internal predecessors, (21), 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) [2023-11-26 10:42:03,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2023-11-26 10:42:03,314 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 4 [2023-11-26 10:42:03,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:03,315 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2023-11-26 10:42:03,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-26 10:42:03,315 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2023-11-26 10:42:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 10:42:03,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:03,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 10:42:03,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:42:03,346 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:03,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:03,347 INFO L85 PathProgramCache]: Analyzing trace with hash 88880359, now seen corresponding path program 1 times [2023-11-26 10:42:03,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:03,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006230364] [2023-11-26 10:42:03,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:03,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:03,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:03,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:03,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006230364] [2023-11-26 10:42:03,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006230364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:03,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:03,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:03,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493676849] [2023-11-26 10:42:03,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:03,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:42:03,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:03,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:42:03,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:42:03,433 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:03,496 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-11-26 10:42:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:42:03,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-26 10:42:03,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:03,498 INFO L225 Difference]: With dead ends: 38 [2023-11-26 10:42:03,499 INFO L226 Difference]: Without dead ends: 35 [2023-11-26 10:42:03,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:42:03,501 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:03,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 39 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:03,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-26 10:42:03,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 21. [2023-11-26 10:42:03,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 20 states have internal predecessors, (22), 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) [2023-11-26 10:42:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-11-26 10:42:03,509 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 5 [2023-11-26 10:42:03,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:03,509 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-11-26 10:42:03,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:03,510 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-11-26 10:42:03,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 10:42:03,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:03,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 10:42:03,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:42:03,511 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:03,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:03,512 INFO L85 PathProgramCache]: Analyzing trace with hash 88881545, now seen corresponding path program 1 times [2023-11-26 10:42:03,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:03,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803532942] [2023-11-26 10:42:03,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:03,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:03,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:03,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:03,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803532942] [2023-11-26 10:42:03,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803532942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:03,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:03,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:42:03,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18520931] [2023-11-26 10:42:03,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:03,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:03,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:03,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:03,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:03,605 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:03,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:03,626 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2023-11-26 10:42:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:03,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-26 10:42:03,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:03,628 INFO L225 Difference]: With dead ends: 39 [2023-11-26 10:42:03,628 INFO L226 Difference]: Without dead ends: 37 [2023-11-26 10:42:03,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:03,630 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:03,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 31 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:03,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-26 10:42:03,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2023-11-26 10:42:03,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.608695652173913) internal successors, (37), 29 states have internal predecessors, (37), 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) [2023-11-26 10:42:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2023-11-26 10:42:03,638 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 5 [2023-11-26 10:42:03,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:03,639 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2023-11-26 10:42:03,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-26 10:42:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 10:42:03,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:03,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 10:42:03,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:42:03,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:03,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:03,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1539633391, now seen corresponding path program 1 times [2023-11-26 10:42:03,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:03,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352012967] [2023-11-26 10:42:03,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:03,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:03,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:03,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352012967] [2023-11-26 10:42:03,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352012967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:03,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:03,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:03,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708861100] [2023-11-26 10:42:03,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:03,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:42:03,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:03,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:42:03,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:42:03,724 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 4 states, 4 states have (on average 1.5) 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) [2023-11-26 10:42:03,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:03,763 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2023-11-26 10:42:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:42:03,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) 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 [2023-11-26 10:42:03,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:03,767 INFO L225 Difference]: With dead ends: 56 [2023-11-26 10:42:03,767 INFO L226 Difference]: Without dead ends: 29 [2023-11-26 10:42:03,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:42:03,769 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:03,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 31 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:03,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-26 10:42:03,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2023-11-26 10:42:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:03,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2023-11-26 10:42:03,780 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 6 [2023-11-26 10:42:03,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:03,781 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2023-11-26 10:42:03,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) 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) [2023-11-26 10:42:03,781 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2023-11-26 10:42:03,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 10:42:03,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:03,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:03,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:42:03,783 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:03,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:03,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2124662771, now seen corresponding path program 1 times [2023-11-26 10:42:03,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:03,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899613415] [2023-11-26 10:42:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:03,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:03,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:03,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:03,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899613415] [2023-11-26 10:42:03,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899613415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:03,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:03,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:03,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149149486] [2023-11-26 10:42:03,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:03,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:42:03,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:03,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:42:03,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:42:03,873 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-26 10:42:03,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:03,905 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2023-11-26 10:42:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:42:03,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-26 10:42:03,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:03,907 INFO L225 Difference]: With dead ends: 29 [2023-11-26 10:42:03,907 INFO L226 Difference]: Without dead ends: 28 [2023-11-26 10:42:03,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:42:03,909 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:03,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 44 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-26 10:42:03,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2023-11-26 10:42:03,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 25 states have internal predecessors, (27), 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) [2023-11-26 10:42:03,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2023-11-26 10:42:03,916 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 8 [2023-11-26 10:42:03,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:03,917 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-11-26 10:42:03,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-26 10:42:03,917 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2023-11-26 10:42:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-26 10:42:03,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:03,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:03,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:42:03,919 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:03,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:03,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1440036401, now seen corresponding path program 1 times [2023-11-26 10:42:03,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:03,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291558768] [2023-11-26 10:42:03,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:03,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:04,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:04,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291558768] [2023-11-26 10:42:04,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291558768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:04,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:04,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:04,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502426033] [2023-11-26 10:42:04,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:04,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:42:04,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:04,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:42:04,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:42:04,020 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:04,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:04,045 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2023-11-26 10:42:04,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:42:04,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-26 10:42:04,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:04,047 INFO L225 Difference]: With dead ends: 26 [2023-11-26 10:42:04,047 INFO L226 Difference]: Without dead ends: 25 [2023-11-26 10:42:04,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:42:04,049 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:04,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 26 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:04,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-26 10:42:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-26 10:42:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.368421052631579) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:04,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2023-11-26 10:42:04,055 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 9 [2023-11-26 10:42:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:04,056 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2023-11-26 10:42:04,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:04,056 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2023-11-26 10:42:04,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 10:42:04,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:04,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:04,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:42:04,057 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:04,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:04,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1691454353, now seen corresponding path program 1 times [2023-11-26 10:42:04,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:04,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566558205] [2023-11-26 10:42:04,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:04,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:04,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:04,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:04,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566558205] [2023-11-26 10:42:04,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566558205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:04,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:04,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:04,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070222450] [2023-11-26 10:42:04,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:04,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:42:04,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:04,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:42:04,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:42:04,157 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:04,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:04,210 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2023-11-26 10:42:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:42:04,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-26 10:42:04,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:04,212 INFO L225 Difference]: With dead ends: 30 [2023-11-26 10:42:04,212 INFO L226 Difference]: Without dead ends: 28 [2023-11-26 10:42:04,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:42:04,217 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:04,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 38 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:04,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-26 10:42:04,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-26 10:42:04,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 27 states have internal predecessors, (29), 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) [2023-11-26 10:42:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-11-26 10:42:04,236 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 10 [2023-11-26 10:42:04,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:04,240 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-11-26 10:42:04,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-11-26 10:42:04,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 10:42:04,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:04,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:04,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:42:04,243 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:04,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:04,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1123070022, now seen corresponding path program 1 times [2023-11-26 10:42:04,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:04,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558803401] [2023-11-26 10:42:04,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:04,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:04,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:04,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:04,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558803401] [2023-11-26 10:42:04,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558803401] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:04,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73827540] [2023-11-26 10:42:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:04,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:04,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:04,400 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:04,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:42:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:04,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:42:04,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:04,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:04,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:04,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73827540] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:04,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:04,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-26 10:42:04,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048950679] [2023-11-26 10:42:04,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:04,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 10:42:04,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:04,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 10:42:04,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:42:04,668 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 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) [2023-11-26 10:42:04,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:04,874 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2023-11-26 10:42:04,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 10:42:04,875 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 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 14 [2023-11-26 10:42:04,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:04,876 INFO L225 Difference]: With dead ends: 44 [2023-11-26 10:42:04,876 INFO L226 Difference]: Without dead ends: 39 [2023-11-26 10:42:04,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2023-11-26 10:42:04,877 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 82 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:04,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 49 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:42:04,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-26 10:42:04,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2023-11-26 10:42:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.3) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2023-11-26 10:42:04,889 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 14 [2023-11-26 10:42:04,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:04,889 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2023-11-26 10:42:04,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 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) [2023-11-26 10:42:04,890 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2023-11-26 10:42:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 10:42:04,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:04,890 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:04,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:05,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:05,092 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:05,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:05,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1123068836, now seen corresponding path program 1 times [2023-11-26 10:42:05,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:05,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072239109] [2023-11-26 10:42:05,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:05,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:05,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:05,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:05,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072239109] [2023-11-26 10:42:05,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072239109] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:05,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829712951] [2023-11-26 10:42:05,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:05,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:05,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:05,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:05,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:42:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:05,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:42:05,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:05,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:05,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829712951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:05,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:42:05,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-26 10:42:05,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511300411] [2023-11-26 10:42:05,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:05,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:42:05,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:05,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:42:05,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:42:05,231 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-26 10:42:05,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:05,245 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2023-11-26 10:42:05,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:42:05,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2023-11-26 10:42:05,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:05,247 INFO L225 Difference]: With dead ends: 25 [2023-11-26 10:42:05,247 INFO L226 Difference]: Without dead ends: 24 [2023-11-26 10:42:05,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:42:05,248 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:05,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:05,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-26 10:42:05,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-26 10:42:05,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.25) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2023-11-26 10:42:05,253 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2023-11-26 10:42:05,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:05,253 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2023-11-26 10:42:05,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-26 10:42:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2023-11-26 10:42:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 10:42:05,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:05,255 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:05,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:05,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 10:42:05,463 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:05,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:05,464 INFO L85 PathProgramCache]: Analyzing trace with hash -455395496, now seen corresponding path program 1 times [2023-11-26 10:42:05,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:05,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991673893] [2023-11-26 10:42:05,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:05,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:05,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:05,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:05,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991673893] [2023-11-26 10:42:05,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991673893] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:05,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878871797] [2023-11-26 10:42:05,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:05,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:05,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:05,539 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:05,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:42:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:05,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:42:05,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:05,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:05,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:05,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:05,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878871797] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:05,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:05,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-11-26 10:42:05,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627020242] [2023-11-26 10:42:05,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:05,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:42:05,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:05,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:42:05,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:42:05,692 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:05,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:05,741 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2023-11-26 10:42:05,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:42:05,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-26 10:42:05,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:05,743 INFO L225 Difference]: With dead ends: 61 [2023-11-26 10:42:05,743 INFO L226 Difference]: Without dead ends: 60 [2023-11-26 10:42:05,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:42:05,745 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:05,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 52 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:05,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-26 10:42:05,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2023-11-26 10:42:05,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 50 states have internal predecessors, (64), 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) [2023-11-26 10:42:05,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2023-11-26 10:42:05,762 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 15 [2023-11-26 10:42:05,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:05,763 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2023-11-26 10:42:05,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:05,765 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2023-11-26 10:42:05,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 10:42:05,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:05,767 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:05,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-26 10:42:05,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 10:42:05,973 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:05,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:05,973 INFO L85 PathProgramCache]: Analyzing trace with hash -455389538, now seen corresponding path program 1 times [2023-11-26 10:42:05,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:05,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498142494] [2023-11-26 10:42:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:05,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:06,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:06,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498142494] [2023-11-26 10:42:06,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498142494] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:06,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029433707] [2023-11-26 10:42:06,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:06,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:06,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:06,034 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:06,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:42:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:06,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:42:06,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:06,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:06,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:06,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029433707] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:06,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:06,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2023-11-26 10:42:06,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089441680] [2023-11-26 10:42:06,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:06,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-26 10:42:06,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 10:42:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:42:06,272 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 14 states have internal predecessors, (42), 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) [2023-11-26 10:42:06,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:06,442 INFO L93 Difference]: Finished difference Result 96 states and 117 transitions. [2023-11-26 10:42:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 10:42:06,442 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 14 states have internal predecessors, (42), 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 15 [2023-11-26 10:42:06,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:06,444 INFO L225 Difference]: With dead ends: 96 [2023-11-26 10:42:06,444 INFO L226 Difference]: Without dead ends: 56 [2023-11-26 10:42:06,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2023-11-26 10:42:06,446 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 55 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:06,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 59 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:42:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-26 10:42:06,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 46. [2023-11-26 10:42:06,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 45 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:06,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2023-11-26 10:42:06,461 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 15 [2023-11-26 10:42:06,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:06,461 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2023-11-26 10:42:06,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 14 states have internal predecessors, (42), 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) [2023-11-26 10:42:06,461 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2023-11-26 10:42:06,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 10:42:06,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:06,462 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-26 10:42:06,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:06,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 10:42:06,668 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:06,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:06,669 INFO L85 PathProgramCache]: Analyzing trace with hash 190457212, now seen corresponding path program 1 times [2023-11-26 10:42:06,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:06,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116602678] [2023-11-26 10:42:06,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:06,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:06,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:06,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116602678] [2023-11-26 10:42:06,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116602678] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:06,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101038542] [2023-11-26 10:42:06,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:06,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:06,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:06,737 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:06,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 10:42:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:06,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:42:06,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:06,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:06,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101038542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:06,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:42:06,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-26 10:42:06,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644261800] [2023-11-26 10:42:06,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:06,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:42:06,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:06,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:42:06,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:42:06,860 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2023-11-26 10:42:06,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:06,904 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2023-11-26 10:42:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:42:06,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2023-11-26 10:42:06,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:06,905 INFO L225 Difference]: With dead ends: 46 [2023-11-26 10:42:06,905 INFO L226 Difference]: Without dead ends: 45 [2023-11-26 10:42:06,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:42:06,908 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:06,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 37 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:06,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-26 10:42:06,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-26 10:42:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 44 states have internal predecessors, (50), 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) [2023-11-26 10:42:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2023-11-26 10:42:06,923 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 19 [2023-11-26 10:42:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:06,923 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2023-11-26 10:42:06,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2023-11-26 10:42:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2023-11-26 10:42:06,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-26 10:42:06,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:06,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-26 10:42:06,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:07,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 10:42:07,133 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:07,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:07,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1609206342, now seen corresponding path program 1 times [2023-11-26 10:42:07,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:07,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747854024] [2023-11-26 10:42:07,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:07,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:07,194 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:07,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:07,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747854024] [2023-11-26 10:42:07,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747854024] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:07,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595426039] [2023-11-26 10:42:07,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:07,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:07,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:07,197 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:07,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 10:42:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:07,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:42:07,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:07,305 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:07,362 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:07,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595426039] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:07,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:07,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-26 10:42:07,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683852373] [2023-11-26 10:42:07,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:07,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 10:42:07,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:07,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 10:42:07,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:42:07,366 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 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) [2023-11-26 10:42:07,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:07,449 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2023-11-26 10:42:07,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:42:07,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 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 20 [2023-11-26 10:42:07,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:07,452 INFO L225 Difference]: With dead ends: 67 [2023-11-26 10:42:07,452 INFO L226 Difference]: Without dead ends: 66 [2023-11-26 10:42:07,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-26 10:42:07,454 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:07,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 44 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:07,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-26 10:42:07,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2023-11-26 10:42:07,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 61 states have (on average 1.180327868852459) internal successors, (72), 63 states have internal predecessors, (72), 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) [2023-11-26 10:42:07,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2023-11-26 10:42:07,465 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 20 [2023-11-26 10:42:07,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:07,465 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2023-11-26 10:42:07,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 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) [2023-11-26 10:42:07,466 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2023-11-26 10:42:07,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-26 10:42:07,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:07,467 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1] [2023-11-26 10:42:07,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:07,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 10:42:07,673 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:07,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:07,673 INFO L85 PathProgramCache]: Analyzing trace with hash 718618285, now seen corresponding path program 1 times [2023-11-26 10:42:07,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:07,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873789538] [2023-11-26 10:42:07,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:07,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:07,797 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:07,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:07,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873789538] [2023-11-26 10:42:07,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873789538] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:07,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057393828] [2023-11-26 10:42:07,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:07,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:07,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:07,801 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:07,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 10:42:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:07,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:42:07,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:07,960 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:07,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:08,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057393828] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:08,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:08,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 20 [2023-11-26 10:42:08,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647922973] [2023-11-26 10:42:08,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:08,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-26 10:42:08,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:08,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-26 10:42:08,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2023-11-26 10:42:08,075 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 21 states, 20 states have (on average 3.9) internal successors, (78), 21 states have internal predecessors, (78), 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) [2023-11-26 10:42:08,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:08,490 INFO L93 Difference]: Finished difference Result 111 states and 133 transitions. [2023-11-26 10:42:08,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-26 10:42:08,490 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.9) internal successors, (78), 21 states have internal predecessors, (78), 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 26 [2023-11-26 10:42:08,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:08,492 INFO L225 Difference]: With dead ends: 111 [2023-11-26 10:42:08,492 INFO L226 Difference]: Without dead ends: 110 [2023-11-26 10:42:08,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1467, Unknown=0, NotChecked=0, Total=1806 [2023-11-26 10:42:08,494 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 96 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:08,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 79 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:42:08,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-26 10:42:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2023-11-26 10:42:08,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 102 states have (on average 1.1862745098039216) internal successors, (121), 104 states have internal predecessors, (121), 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) [2023-11-26 10:42:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2023-11-26 10:42:08,505 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 26 [2023-11-26 10:42:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:08,506 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2023-11-26 10:42:08,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.9) internal successors, (78), 21 states have internal predecessors, (78), 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) [2023-11-26 10:42:08,506 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2023-11-26 10:42:08,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-26 10:42:08,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:08,508 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2023-11-26 10:42:08,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:08,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 10:42:08,714 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:08,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:08,714 INFO L85 PathProgramCache]: Analyzing trace with hash -195236597, now seen corresponding path program 2 times [2023-11-26 10:42:08,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:08,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263675685] [2023-11-26 10:42:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:08,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:08,803 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:08,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:08,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263675685] [2023-11-26 10:42:08,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263675685] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:08,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927513938] [2023-11-26 10:42:08,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:42:08,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:08,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:08,806 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:08,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 10:42:08,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 10:42:08,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:08,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:42:08,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:08,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:09,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927513938] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:09,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:09,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-26 10:42:09,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966836677] [2023-11-26 10:42:09,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:09,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 10:42:09,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:09,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 10:42:09,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:42:09,054 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand has 13 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 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) [2023-11-26 10:42:09,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:09,125 INFO L93 Difference]: Finished difference Result 312 states and 373 transitions. [2023-11-26 10:42:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 10:42:09,126 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 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 42 [2023-11-26 10:42:09,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:09,130 INFO L225 Difference]: With dead ends: 312 [2023-11-26 10:42:09,130 INFO L226 Difference]: Without dead ends: 311 [2023-11-26 10:42:09,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:42:09,131 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 38 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:09,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 104 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:09,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-26 10:42:09,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 297. [2023-11-26 10:42:09,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 294 states have (on average 1.248299319727891) internal successors, (367), 296 states have internal predecessors, (367), 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) [2023-11-26 10:42:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 367 transitions. [2023-11-26 10:42:09,162 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 367 transitions. Word has length 42 [2023-11-26 10:42:09,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:09,162 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 367 transitions. [2023-11-26 10:42:09,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 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) [2023-11-26 10:42:09,163 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 367 transitions. [2023-11-26 10:42:09,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-26 10:42:09,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:09,167 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 1, 1, 1] [2023-11-26 10:42:09,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:09,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 10:42:09,372 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:09,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:09,373 INFO L85 PathProgramCache]: Analyzing trace with hash 952700979, now seen corresponding path program 1 times [2023-11-26 10:42:09,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:09,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058390000] [2023-11-26 10:42:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:09,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:09,599 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 10:42:09,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:09,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058390000] [2023-11-26 10:42:09,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058390000] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:09,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616868855] [2023-11-26 10:42:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:09,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:09,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:09,602 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:09,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 10:42:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:09,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 10:42:09,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:09,928 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 10:42:09,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:10,119 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 10:42:10,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616868855] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:10,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:10,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2023-11-26 10:42:10,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187956372] [2023-11-26 10:42:10,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:10,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-26 10:42:10,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:10,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-26 10:42:10,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2023-11-26 10:42:10,122 INFO L87 Difference]: Start difference. First operand 297 states and 367 transitions. Second operand has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 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) [2023-11-26 10:42:10,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:10,362 INFO L93 Difference]: Finished difference Result 496 states and 619 transitions. [2023-11-26 10:42:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 10:42:10,363 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 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 43 [2023-11-26 10:42:10,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:10,365 INFO L225 Difference]: With dead ends: 496 [2023-11-26 10:42:10,365 INFO L226 Difference]: Without dead ends: 237 [2023-11-26 10:42:10,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 64 SyntacticMatches, 7 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2023-11-26 10:42:10,368 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 44 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:10,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 64 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:42:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-26 10:42:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2023-11-26 10:42:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 234 states have (on average 1.235042735042735) internal successors, (289), 236 states have internal predecessors, (289), 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) [2023-11-26 10:42:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 289 transitions. [2023-11-26 10:42:10,386 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 289 transitions. Word has length 43 [2023-11-26 10:42:10,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:10,387 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 289 transitions. [2023-11-26 10:42:10,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 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) [2023-11-26 10:42:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 289 transitions. [2023-11-26 10:42:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-26 10:42:10,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:10,388 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2023-11-26 10:42:10,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:10,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-26 10:42:10,597 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:10,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:10,597 INFO L85 PathProgramCache]: Analyzing trace with hash -408589197, now seen corresponding path program 2 times [2023-11-26 10:42:10,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:10,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042199484] [2023-11-26 10:42:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:10,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:10,809 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:10,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:10,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042199484] [2023-11-26 10:42:10,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042199484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:10,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669070723] [2023-11-26 10:42:10,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:42:10,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:10,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:10,812 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:10,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 10:42:10,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:42:10,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:10,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:42:10,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:11,119 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-26 10:42:11,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-26 10:42:11,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669070723] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:11,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:11,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-26 10:42:11,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486828008] [2023-11-26 10:42:11,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:11,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-26 10:42:11,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:11,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-26 10:42:11,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-11-26 10:42:11,299 INFO L87 Difference]: Start difference. First operand 237 states and 289 transitions. Second operand has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 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) [2023-11-26 10:42:11,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:11,534 INFO L93 Difference]: Finished difference Result 237 states and 289 transitions. [2023-11-26 10:42:11,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 10:42:11,535 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 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 47 [2023-11-26 10:42:11,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:11,537 INFO L225 Difference]: With dead ends: 237 [2023-11-26 10:42:11,537 INFO L226 Difference]: Without dead ends: 236 [2023-11-26 10:42:11,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2023-11-26 10:42:11,539 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 29 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:11,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 44 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:42:11,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-26 10:42:11,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2023-11-26 10:42:11,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 234 states have (on average 1.1324786324786325) internal successors, (265), 235 states have internal predecessors, (265), 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) [2023-11-26 10:42:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 265 transitions. [2023-11-26 10:42:11,560 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 265 transitions. Word has length 47 [2023-11-26 10:42:11,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:11,561 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 265 transitions. [2023-11-26 10:42:11,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 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) [2023-11-26 10:42:11,562 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 265 transitions. [2023-11-26 10:42:11,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-26 10:42:11,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:11,564 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 5, 5, 5, 4, 1, 1, 1] [2023-11-26 10:42:11,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:11,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-26 10:42:11,770 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:11,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash 309086989, now seen corresponding path program 2 times [2023-11-26 10:42:11,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:11,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639600867] [2023-11-26 10:42:11,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:11,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:12,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:12,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639600867] [2023-11-26 10:42:12,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639600867] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:12,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134656245] [2023-11-26 10:42:12,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:42:12,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:12,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:12,214 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:12,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 10:42:12,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 10:42:12,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:12,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-26 10:42:12,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:12,387 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:12,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:12,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134656245] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:12,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:12,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 36 [2023-11-26 10:42:12,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572180782] [2023-11-26 10:42:12,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:12,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-26 10:42:12,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:12,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-26 10:42:12,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2023-11-26 10:42:12,909 INFO L87 Difference]: Start difference. First operand 236 states and 265 transitions. Second operand has 38 states, 37 states have (on average 3.891891891891892) internal successors, (144), 37 states have internal predecessors, (144), 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) [2023-11-26 10:42:13,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:13,487 INFO L93 Difference]: Finished difference Result 1762 states and 2015 transitions. [2023-11-26 10:42:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-26 10:42:13,488 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 3.891891891891892) internal successors, (144), 37 states have internal predecessors, (144), 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 72 [2023-11-26 10:42:13,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:13,497 INFO L225 Difference]: With dead ends: 1762 [2023-11-26 10:42:13,497 INFO L226 Difference]: Without dead ends: 1761 [2023-11-26 10:42:13,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=910, Invalid=2170, Unknown=0, NotChecked=0, Total=3080 [2023-11-26 10:42:13,500 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 157 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:13,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 128 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:42:13,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2023-11-26 10:42:13,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 629. [2023-11-26 10:42:13,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 627 states have (on average 1.127591706539075) internal successors, (707), 628 states have internal predecessors, (707), 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) [2023-11-26 10:42:13,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 707 transitions. [2023-11-26 10:42:13,563 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 707 transitions. Word has length 72 [2023-11-26 10:42:13,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:13,564 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 707 transitions. [2023-11-26 10:42:13,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 3.891891891891892) internal successors, (144), 37 states have internal predecessors, (144), 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) [2023-11-26 10:42:13,564 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 707 transitions. [2023-11-26 10:42:13,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-26 10:42:13,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:13,566 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2023-11-26 10:42:13,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:13,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:13,773 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:13,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:13,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1281765141, now seen corresponding path program 3 times [2023-11-26 10:42:13,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:13,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101419950] [2023-11-26 10:42:13,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:13,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:14,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:14,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101419950] [2023-11-26 10:42:14,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101419950] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:14,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376382472] [2023-11-26 10:42:14,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 10:42:14,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:14,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:14,085 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:14,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 10:42:14,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-26 10:42:14,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:14,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 10:42:14,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:14,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:14,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376382472] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:14,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:14,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-11-26 10:42:14,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491732560] [2023-11-26 10:42:14,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:14,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-26 10:42:14,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:14,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-26 10:42:14,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-26 10:42:14,660 INFO L87 Difference]: Start difference. First operand 629 states and 707 transitions. Second operand has 25 states, 24 states have (on average 8.25) internal successors, (198), 24 states have internal predecessors, (198), 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) [2023-11-26 10:42:14,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:14,841 INFO L93 Difference]: Finished difference Result 1113 states and 1261 transitions. [2023-11-26 10:42:14,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 10:42:14,842 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 8.25) internal successors, (198), 24 states have internal predecessors, (198), 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 96 [2023-11-26 10:42:14,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:14,848 INFO L225 Difference]: With dead ends: 1113 [2023-11-26 10:42:14,848 INFO L226 Difference]: Without dead ends: 1112 [2023-11-26 10:42:14,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-26 10:42:14,850 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 81 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:14,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 186 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:42:14,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2023-11-26 10:42:14,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1095. [2023-11-26 10:42:14,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1093 states have (on average 1.1335773101555353) internal successors, (1239), 1094 states have internal predecessors, (1239), 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) [2023-11-26 10:42:14,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1239 transitions. [2023-11-26 10:42:14,933 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1239 transitions. Word has length 96 [2023-11-26 10:42:14,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:14,934 INFO L495 AbstractCegarLoop]: Abstraction has 1095 states and 1239 transitions. [2023-11-26 10:42:14,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 8.25) internal successors, (198), 24 states have internal predecessors, (198), 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) [2023-11-26 10:42:14,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1239 transitions. [2023-11-26 10:42:14,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-26 10:42:14,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:14,937 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 14, 5, 5, 5, 1, 1, 1] [2023-11-26 10:42:14,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:15,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:15,143 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:15,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:15,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1957359251, now seen corresponding path program 3 times [2023-11-26 10:42:15,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:15,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469766391] [2023-11-26 10:42:15,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:15,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:16,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 0 proven. 1163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:16,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:16,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469766391] [2023-11-26 10:42:16,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469766391] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:16,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046110275] [2023-11-26 10:42:16,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 10:42:16,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:16,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:16,516 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:16,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 10:42:16,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-11-26 10:42:16,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:16,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-26 10:42:16,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:17,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 62 proven. 1101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:17,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 62 proven. 1101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:18,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046110275] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:18,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:18,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 40, 40] total 87 [2023-11-26 10:42:18,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509519128] [2023-11-26 10:42:18,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:18,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2023-11-26 10:42:18,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:18,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2023-11-26 10:42:18,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1368, Invalid=6288, Unknown=0, NotChecked=0, Total=7656 [2023-11-26 10:42:18,964 INFO L87 Difference]: Start difference. First operand 1095 states and 1239 transitions. Second operand has 88 states, 87 states have (on average 3.7126436781609193) internal successors, (323), 88 states have internal predecessors, (323), 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) [2023-11-26 10:42:23,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:23,545 INFO L93 Difference]: Finished difference Result 6195 states and 7509 transitions. [2023-11-26 10:42:23,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2023-11-26 10:42:23,546 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 3.7126436781609193) internal successors, (323), 88 states have internal predecessors, (323), 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 142 [2023-11-26 10:42:23,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:23,578 INFO L225 Difference]: With dead ends: 6195 [2023-11-26 10:42:23,578 INFO L226 Difference]: Without dead ends: 6194 [2023-11-26 10:42:23,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10031 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=7426, Invalid=28864, Unknown=0, NotChecked=0, Total=36290 [2023-11-26 10:42:23,592 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 609 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:23,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 146 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:42:23,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2023-11-26 10:42:23,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 3896. [2023-11-26 10:42:23,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3894 states have (on average 1.1435541859270673) internal successors, (4453), 3895 states have internal predecessors, (4453), 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) [2023-11-26 10:42:23,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 4453 transitions. [2023-11-26 10:42:23,920 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 4453 transitions. Word has length 142 [2023-11-26 10:42:23,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:23,920 INFO L495 AbstractCegarLoop]: Abstraction has 3896 states and 4453 transitions. [2023-11-26 10:42:23,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 3.7126436781609193) internal successors, (323), 88 states have internal predecessors, (323), 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) [2023-11-26 10:42:23,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 4453 transitions. [2023-11-26 10:42:23,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-11-26 10:42:23,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:23,926 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1] [2023-11-26 10:42:23,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:24,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:24,133 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:24,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:24,134 INFO L85 PathProgramCache]: Analyzing trace with hash -687300437, now seen corresponding path program 4 times [2023-11-26 10:42:24,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:24,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185978890] [2023-11-26 10:42:24,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:24,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:25,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2167 backedges. 0 proven. 2167 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:25,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:25,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185978890] [2023-11-26 10:42:25,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185978890] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:25,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238628525] [2023-11-26 10:42:25,042 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-26 10:42:25,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:25,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:25,045 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:25,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-26 10:42:25,169 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-26 10:42:25,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:25,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-26 10:42:25,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2167 backedges. 909 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2023-11-26 10:42:25,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:25,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238628525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:25,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:42:25,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [23] total 41 [2023-11-26 10:42:25,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190152249] [2023-11-26 10:42:25,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:25,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-26 10:42:25,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:25,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-26 10:42:25,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=1342, Unknown=0, NotChecked=0, Total=1722 [2023-11-26 10:42:25,860 INFO L87 Difference]: Start difference. First operand 3896 states and 4453 transitions. Second operand has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 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) [2023-11-26 10:42:26,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:26,306 INFO L93 Difference]: Finished difference Result 3897 states and 4453 transitions. [2023-11-26 10:42:26,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-26 10:42:26,307 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 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 204 [2023-11-26 10:42:26,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:26,309 INFO L225 Difference]: With dead ends: 3897 [2023-11-26 10:42:26,309 INFO L226 Difference]: Without dead ends: 255 [2023-11-26 10:42:26,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=528, Invalid=2334, Unknown=0, NotChecked=0, Total=2862 [2023-11-26 10:42:26,317 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 27 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:26,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 56 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:42:26,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-26 10:42:26,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2023-11-26 10:42:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.0039370078740157) internal successors, (255), 254 states have internal predecessors, (255), 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) [2023-11-26 10:42:26,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 255 transitions. [2023-11-26 10:42:26,335 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 255 transitions. Word has length 204 [2023-11-26 10:42:26,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:26,336 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 255 transitions. [2023-11-26 10:42:26,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 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) [2023-11-26 10:42:26,336 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 255 transitions. [2023-11-26 10:42:26,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-26 10:42:26,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:26,340 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 30, 5, 5, 5, 1, 1, 1] [2023-11-26 10:42:26,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:26,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-26 10:42:26,548 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:26,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:26,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1417918355, now seen corresponding path program 4 times [2023-11-26 10:42:26,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:26,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777958540] [2023-11-26 10:42:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:26,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4083 backedges. 0 proven. 4083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:30,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:30,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777958540] [2023-11-26 10:42:30,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777958540] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:30,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139848570] [2023-11-26 10:42:30,455 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-26 10:42:30,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:30,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:30,457 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:30,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-26 10:42:30,597 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-26 10:42:30,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:30,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 71 conjunts are in the unsatisfiable core [2023-11-26 10:42:30,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:31,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4083 backedges. 0 proven. 4083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:31,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:35,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4083 backedges. 0 proven. 4083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:35,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139848570] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:35,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:35,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70, 70] total 140 [2023-11-26 10:42:35,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110926868] [2023-11-26 10:42:35,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:35,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2023-11-26 10:42:35,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2023-11-26 10:42:35,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5111, Invalid=14911, Unknown=0, NotChecked=0, Total=20022 [2023-11-26 10:42:35,876 INFO L87 Difference]: Start difference. First operand 255 states and 255 transitions. Second operand has 142 states, 141 states have (on average 3.602836879432624) internal successors, (508), 141 states have internal predecessors, (508), 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) [2023-11-26 10:42:40,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:40,083 INFO L93 Difference]: Finished difference Result 509 states and 544 transitions. [2023-11-26 10:42:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2023-11-26 10:42:40,083 INFO L78 Accepts]: Start accepts. Automaton has has 142 states, 141 states have (on average 3.602836879432624) internal successors, (508), 141 states have internal predecessors, (508), 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 254 [2023-11-26 10:42:40,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:40,086 INFO L225 Difference]: With dead ends: 509 [2023-11-26 10:42:40,087 INFO L226 Difference]: Without dead ends: 508 [2023-11-26 10:42:40,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9454 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=12636, Invalid=32096, Unknown=0, NotChecked=0, Total=44732 [2023-11-26 10:42:40,123 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 654 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:40,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 234 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 10:42:40,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-26 10:42:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 507. [2023-11-26 10:42:40,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 506 states have (on average 1.0019762845849802) internal successors, (507), 506 states have internal predecessors, (507), 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) [2023-11-26 10:42:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 507 transitions. [2023-11-26 10:42:40,157 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 507 transitions. Word has length 254 [2023-11-26 10:42:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:40,158 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 507 transitions. [2023-11-26 10:42:40,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 141 states have (on average 3.602836879432624) internal successors, (508), 141 states have internal predecessors, (508), 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) [2023-11-26 10:42:40,158 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 507 transitions. [2023-11-26 10:42:40,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-11-26 10:42:40,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:40,169 INFO L195 NwaCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 66, 5, 5, 5, 1, 1, 1] [2023-11-26 10:42:40,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:40,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdaf4236-7384-4e16-915e-c148ace13607/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:40,376 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:40,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:40,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1381485523, now seen corresponding path program 5 times [2023-11-26 10:42:40,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:40,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830498167] [2023-11-26 10:42:40,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:40,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat