./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/min-2-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/min-2-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 68785685c781649dca8a870a36ccbd5837fb99f65c0418361b1a73f7848e1bda --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:54:31,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:54:31,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:54:31,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:54:31,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:54:31,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:54:31,201 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:54:31,201 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:54:31,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:54:31,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:54:31,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:54:31,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:54:31,210 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:54:31,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:54:31,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:54:31,213 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:54:31,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:54:31,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:54:31,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:54:31,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:54:31,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:54:31,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:54:31,217 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:54:31,217 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:54:31,218 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:54:31,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:54:31,219 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:54:31,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:54:31,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:54:31,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:54:31,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:31,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:54:31,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:54:31,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:54:31,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:54:31,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:54:31,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:54:31,225 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:54:31,225 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:54:31,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:54:31,226 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:54:31,226 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_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68785685c781649dca8a870a36ccbd5837fb99f65c0418361b1a73f7848e1bda [2023-11-06 22:54:31,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:54:31,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:54:31,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:54:31,592 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:54:31,593 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:54:31,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-multidimensional/min-2-u.c [2023-11-06 22:54:34,762 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:54:35,031 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:54:35,032 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/sv-benchmarks/c/array-multidimensional/min-2-u.c [2023-11-06 22:54:35,038 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/data/6c3814b41/f12fe6852675411db73e2e6c7a5a3f88/FLAG513348f14 [2023-11-06 22:54:35,054 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/data/6c3814b41/f12fe6852675411db73e2e6c7a5a3f88 [2023-11-06 22:54:35,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:54:35,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:54:35,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:35,061 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:54:35,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:54:35,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7052d995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35, skipping insertion in model container [2023-11-06 22:54:35,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,092 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:54:35,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:35,270 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:54:35,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:35,306 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:54:35,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35 WrapperNode [2023-11-06 22:54:35,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:35,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:35,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:54:35,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:54:35,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,347 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-11-06 22:54:35,348 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:35,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:54:35,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:54:35,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:54:35,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:54:35,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:54:35,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:54:35,378 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:54:35,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (1/1) ... [2023-11-06 22:54:35,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:35,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:35,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:54:35,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:54:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:54:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:54:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:54:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:54:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:54:35,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:54:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:54:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:54:35,517 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:54:35,519 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:54:35,729 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:54:35,736 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:54:35,736 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 22:54:35,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:35 BoogieIcfgContainer [2023-11-06 22:54:35,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:54:35,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:54:35,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:54:35,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:54:35,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:54:35" (1/3) ... [2023-11-06 22:54:35,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce7a7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:35, skipping insertion in model container [2023-11-06 22:54:35,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:35" (2/3) ... [2023-11-06 22:54:35,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce7a7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:35, skipping insertion in model container [2023-11-06 22:54:35,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:35" (3/3) ... [2023-11-06 22:54:35,766 INFO L112 eAbstractionObserver]: Analyzing ICFG min-2-u.c [2023-11-06 22:54:35,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:54:35,793 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-06 22:54:35,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:54:35,854 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=LoopsAndPotentialCycles, 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;@9485533, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:54:35,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-06 22:54:35,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.8666666666666667) internal successors, (56), 42 states have internal predecessors, (56), 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) [2023-11-06 22:54:35,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:54:35,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:35,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:54:35,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:35,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash 28699890, now seen corresponding path program 1 times [2023-11-06 22:54:35,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:35,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289365724] [2023-11-06 22:54:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:35,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:35,985 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:35,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442058681] [2023-11-06 22:54:35,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:35,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:35,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:35,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:35,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:54:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:36,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:54:36,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:36,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:36,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:36,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289365724] [2023-11-06 22:54:36,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:36,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442058681] [2023-11-06 22:54:36,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442058681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:36,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:36,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:36,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080413186] [2023-11-06 22:54:36,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:36,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:36,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:36,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:36,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:36,171 INFO L87 Difference]: Start difference. First operand has 43 states, 30 states have (on average 1.8666666666666667) internal successors, (56), 42 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:36,284 INFO L93 Difference]: Finished difference Result 80 states and 109 transitions. [2023-11-06 22:54:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:36,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 22:54:36,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:36,295 INFO L225 Difference]: With dead ends: 80 [2023-11-06 22:54:36,296 INFO L226 Difference]: Without dead ends: 34 [2023-11-06 22:54:36,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:36,303 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 34 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:36,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 28 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-06 22:54:36,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-06 22:54:36,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.6) internal successors, (40), 33 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2023-11-06 22:54:36,397 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 5 [2023-11-06 22:54:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:36,397 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2023-11-06 22:54:36,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,398 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2023-11-06 22:54:36,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:54:36,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:36,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:54:36,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:54:36,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:54:36,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:36,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:36,603 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2023-11-06 22:54:36,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:36,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944128420] [2023-11-06 22:54:36,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:36,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:36,617 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:36,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621602103] [2023-11-06 22:54:36,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:36,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:36,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:36,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:36,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:54:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:36,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:54:36,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:36,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:36,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:36,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:36,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944128420] [2023-11-06 22:54:36,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:36,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621602103] [2023-11-06 22:54:36,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621602103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:36,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:36,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:36,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123904124] [2023-11-06 22:54:36,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:36,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:36,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:36,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:36,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:36,698 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:36,762 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2023-11-06 22:54:36,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:36,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 22:54:36,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:36,764 INFO L225 Difference]: With dead ends: 34 [2023-11-06 22:54:36,764 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 22:54:36,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:36,766 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 26 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:36,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 22 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:36,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 22:54:36,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-06 22:54:36,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.48) internal successors, (37), 30 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) [2023-11-06 22:54:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-11-06 22:54:36,774 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 5 [2023-11-06 22:54:36,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:36,775 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-11-06 22:54:36,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:36,775 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-11-06 22:54:36,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:54:36,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:36,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:54:36,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:36,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:36,977 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:36,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:36,978 INFO L85 PathProgramCache]: Analyzing trace with hash 889696651, now seen corresponding path program 1 times [2023-11-06 22:54:36,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:36,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59118244] [2023-11-06 22:54:36,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:36,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:37,006 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:37,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871319270] [2023-11-06 22:54:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:37,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:37,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:37,010 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:37,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:54:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:37,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:54:37,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:37,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:37,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:37,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59118244] [2023-11-06 22:54:37,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:37,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871319270] [2023-11-06 22:54:37,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871319270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:37,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:37,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:37,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631627380] [2023-11-06 22:54:37,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:37,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:37,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:37,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:37,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:37,088 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:37,169 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2023-11-06 22:54:37,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:37,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 22:54:37,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:37,172 INFO L225 Difference]: With dead ends: 60 [2023-11-06 22:54:37,172 INFO L226 Difference]: Without dead ends: 57 [2023-11-06 22:54:37,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:37,174 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 24 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:37,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 38 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:37,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-06 22:54:37,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2023-11-06 22:54:37,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 51 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) [2023-11-06 22:54:37,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2023-11-06 22:54:37,187 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 6 [2023-11-06 22:54:37,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:37,188 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2023-11-06 22:54:37,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,188 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2023-11-06 22:54:37,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:54:37,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:37,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:54:37,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:37,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:37,395 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:37,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:37,396 INFO L85 PathProgramCache]: Analyzing trace with hash 889698349, now seen corresponding path program 1 times [2023-11-06 22:54:37,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:37,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158826030] [2023-11-06 22:54:37,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:37,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:37,408 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:37,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839015681] [2023-11-06 22:54:37,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:37,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:37,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:37,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:37,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:54:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:37,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:54:37,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:37,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:37,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158826030] [2023-11-06 22:54:37,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839015681] [2023-11-06 22:54:37,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839015681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:37,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:37,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:37,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360649832] [2023-11-06 22:54:37,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:37,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:37,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:37,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:37,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:37,508 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:37,618 INFO L93 Difference]: Finished difference Result 99 states and 127 transitions. [2023-11-06 22:54:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:37,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 22:54:37,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:37,622 INFO L225 Difference]: With dead ends: 99 [2023-11-06 22:54:37,622 INFO L226 Difference]: Without dead ends: 96 [2023-11-06 22:54:37,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:37,624 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:37,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 39 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:37,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-06 22:54:37,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 76. [2023-11-06 22:54:37,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 75 states have internal predecessors, (99), 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) [2023-11-06 22:54:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2023-11-06 22:54:37,641 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 6 [2023-11-06 22:54:37,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:37,641 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2023-11-06 22:54:37,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:37,642 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2023-11-06 22:54:37,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:54:37,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:37,643 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:54:37,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:37,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:37,849 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:37,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:37,849 INFO L85 PathProgramCache]: Analyzing trace with hash 760381159, now seen corresponding path program 1 times [2023-11-06 22:54:37,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:37,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760795900] [2023-11-06 22:54:37,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:37,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:37,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:37,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226522856] [2023-11-06 22:54:37,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:37,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:37,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:37,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:37,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:54:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:37,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:37,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:37,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:37,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:38,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:38,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760795900] [2023-11-06 22:54:38,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:38,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226522856] [2023-11-06 22:54:38,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226522856] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:38,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:54:38,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:54:38,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305459598] [2023-11-06 22:54:38,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:38,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:38,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:38,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:38,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:38,008 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:38,203 INFO L93 Difference]: Finished difference Result 231 states and 301 transitions. [2023-11-06 22:54:38,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:38,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 22:54:38,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:38,217 INFO L225 Difference]: With dead ends: 231 [2023-11-06 22:54:38,218 INFO L226 Difference]: Without dead ends: 228 [2023-11-06 22:54:38,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:38,219 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 132 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:38,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 82 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:38,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-11-06 22:54:38,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 148. [2023-11-06 22:54:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 142 states have (on average 1.3732394366197183) internal successors, (195), 147 states have internal predecessors, (195), 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) [2023-11-06 22:54:38,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2023-11-06 22:54:38,255 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 9 [2023-11-06 22:54:38,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:38,255 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2023-11-06 22:54:38,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:38,256 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2023-11-06 22:54:38,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:54:38,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:38,257 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:54:38,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:38,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:38,463 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:38,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:38,464 INFO L85 PathProgramCache]: Analyzing trace with hash 528569044, now seen corresponding path program 1 times [2023-11-06 22:54:38,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:38,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566119573] [2023-11-06 22:54:38,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:38,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:38,477 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:38,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021808556] [2023-11-06 22:54:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:38,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:38,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:38,479 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:38,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:54:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:38,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:38,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:54:38,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:38,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:38,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566119573] [2023-11-06 22:54:38,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:38,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021808556] [2023-11-06 22:54:38,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021808556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:38,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:38,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:54:38,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617329591] [2023-11-06 22:54:38,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:38,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:54:38,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:38,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:54:38,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:54:38,600 INFO L87 Difference]: Start difference. First operand 148 states and 195 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2023-11-06 22:54:38,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:38,689 INFO L93 Difference]: Finished difference Result 280 states and 367 transitions. [2023-11-06 22:54:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:54:38,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 10 [2023-11-06 22:54:38,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:38,691 INFO L225 Difference]: With dead ends: 280 [2023-11-06 22:54:38,691 INFO L226 Difference]: Without dead ends: 150 [2023-11-06 22:54:38,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:54:38,697 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 45 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:38,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 36 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:38,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-06 22:54:38,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2023-11-06 22:54:38,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 142 states have (on average 1.3309859154929577) internal successors, (189), 147 states have internal predecessors, (189), 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) [2023-11-06 22:54:38,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 189 transitions. [2023-11-06 22:54:38,753 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 189 transitions. Word has length 10 [2023-11-06 22:54:38,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:38,754 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 189 transitions. [2023-11-06 22:54:38,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2023-11-06 22:54:38,754 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 189 transitions. [2023-11-06 22:54:38,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-06 22:54:38,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:38,757 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:54:38,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:38,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:38,962 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:38,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:38,963 INFO L85 PathProgramCache]: Analyzing trace with hash -263226782, now seen corresponding path program 1 times [2023-11-06 22:54:38,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:38,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633382269] [2023-11-06 22:54:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:38,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:38,987 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:38,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828660037] [2023-11-06 22:54:38,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:38,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:38,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:38,989 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:39,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:54:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:39,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:54:39,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:39,130 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:54:39,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:39,179 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:54:39,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:39,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633382269] [2023-11-06 22:54:39,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:39,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828660037] [2023-11-06 22:54:39,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828660037] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:39,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:54:39,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:54:39,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838066474] [2023-11-06 22:54:39,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:39,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:54:39,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:39,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:54:39,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:39,187 INFO L87 Difference]: Start difference. First operand 148 states and 189 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 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) [2023-11-06 22:54:39,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:39,360 INFO L93 Difference]: Finished difference Result 280 states and 356 transitions. [2023-11-06 22:54:39,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:54:39,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 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) Word has length 16 [2023-11-06 22:54:39,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:39,363 INFO L225 Difference]: With dead ends: 280 [2023-11-06 22:54:39,363 INFO L226 Difference]: Without dead ends: 150 [2023-11-06 22:54:39,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:54:39,365 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 144 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:39,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 50 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:39,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-06 22:54:39,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2023-11-06 22:54:39,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 142 states have (on average 1.204225352112676) internal successors, (171), 147 states have internal predecessors, (171), 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) [2023-11-06 22:54:39,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 171 transitions. [2023-11-06 22:54:39,387 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 171 transitions. Word has length 16 [2023-11-06 22:54:39,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:39,387 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 171 transitions. [2023-11-06 22:54:39,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 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) [2023-11-06 22:54:39,388 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 171 transitions. [2023-11-06 22:54:39,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 22:54:39,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:39,389 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2023-11-06 22:54:39,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:39,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:39,598 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:39,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:39,598 INFO L85 PathProgramCache]: Analyzing trace with hash -757857363, now seen corresponding path program 2 times [2023-11-06 22:54:39,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:39,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417460417] [2023-11-06 22:54:39,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:39,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:39,616 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:39,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687749234] [2023-11-06 22:54:39,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:54:39,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:39,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:39,618 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:39,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:54:39,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:54:39,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:54:39,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:39,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:54:39,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:39,788 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:54:39,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:39,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417460417] [2023-11-06 22:54:39,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:39,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687749234] [2023-11-06 22:54:39,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687749234] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:39,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:54:39,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:54:39,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982678643] [2023-11-06 22:54:39,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:39,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:39,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:39,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:39,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:39,791 INFO L87 Difference]: Start difference. First operand 148 states and 171 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:39,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:39,880 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2023-11-06 22:54:39,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:54:39,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-06 22:54:39,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:39,882 INFO L225 Difference]: With dead ends: 150 [2023-11-06 22:54:39,882 INFO L226 Difference]: Without dead ends: 147 [2023-11-06 22:54:39,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:39,884 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 60 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:39,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 32 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:39,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-06 22:54:39,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 127. [2023-11-06 22:54:39,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 124 states have (on average 1.1693548387096775) internal successors, (145), 126 states have internal predecessors, (145), 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) [2023-11-06 22:54:39,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 145 transitions. [2023-11-06 22:54:39,903 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 145 transitions. Word has length 18 [2023-11-06 22:54:39,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:39,903 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 145 transitions. [2023-11-06 22:54:39,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:39,904 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 145 transitions. [2023-11-06 22:54:39,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 22:54:39,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:39,906 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:54:39,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:40,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:40,112 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:40,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:40,113 INFO L85 PathProgramCache]: Analyzing trace with hash -653900716, now seen corresponding path program 2 times [2023-11-06 22:54:40,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:40,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022395261] [2023-11-06 22:54:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:40,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:40,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:40,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147457723] [2023-11-06 22:54:40,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:54:40,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:40,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:40,156 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:40,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:54:40,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:54:40,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:54:40,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:40,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 22:54:40,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:40,385 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 22:54:40,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:40,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022395261] [2023-11-06 22:54:40,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:40,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147457723] [2023-11-06 22:54:40,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147457723] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:40,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:54:40,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:54:40,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886219055] [2023-11-06 22:54:40,390 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:40,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:40,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:40,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:40,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:40,393 INFO L87 Difference]: Start difference. First operand 127 states and 145 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2023-11-06 22:54:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:40,493 INFO L93 Difference]: Finished difference Result 176 states and 201 transitions. [2023-11-06 22:54:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:54:40,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 34 [2023-11-06 22:54:40,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:40,496 INFO L225 Difference]: With dead ends: 176 [2023-11-06 22:54:40,496 INFO L226 Difference]: Without dead ends: 173 [2023-11-06 22:54:40,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:40,503 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 186 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:40,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 38 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:40,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-06 22:54:40,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 154. [2023-11-06 22:54:40,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 152 states have (on average 1.1644736842105263) internal successors, (177), 153 states have internal predecessors, (177), 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) [2023-11-06 22:54:40,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 177 transitions. [2023-11-06 22:54:40,527 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 177 transitions. Word has length 34 [2023-11-06 22:54:40,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:40,528 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 177 transitions. [2023-11-06 22:54:40,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2023-11-06 22:54:40,531 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 177 transitions. [2023-11-06 22:54:40,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:54:40,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:40,539 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2023-11-06 22:54:40,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-06 22:54:40,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:40,746 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:40,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:40,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1962167131, now seen corresponding path program 1 times [2023-11-06 22:54:40,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:40,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635247956] [2023-11-06 22:54:40,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:40,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:40,762 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:40,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672299750] [2023-11-06 22:54:40,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:40,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:40,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:40,764 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:40,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:54:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:40,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:40,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:40,890 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 22:54:40,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:40,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:40,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635247956] [2023-11-06 22:54:40,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:40,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672299750] [2023-11-06 22:54:40,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672299750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:40,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:40,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:54:40,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286031872] [2023-11-06 22:54:40,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:40,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:40,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:40,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:40,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:40,894 INFO L87 Difference]: Start difference. First operand 154 states and 177 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-06 22:54:40,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:40,944 INFO L93 Difference]: Finished difference Result 306 states and 352 transitions. [2023-11-06 22:54:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:40,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 64 [2023-11-06 22:54:40,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:40,946 INFO L225 Difference]: With dead ends: 306 [2023-11-06 22:54:40,947 INFO L226 Difference]: Without dead ends: 170 [2023-11-06 22:54:40,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:40,950 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 42 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 [2023-11-06 22:54:40,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 42 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:40,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-06 22:54:40,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 155. [2023-11-06 22:54:40,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.1633986928104576) internal successors, (178), 154 states have internal predecessors, (178), 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) [2023-11-06 22:54:40,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 178 transitions. [2023-11-06 22:54:40,974 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 178 transitions. Word has length 64 [2023-11-06 22:54:40,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:40,976 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 178 transitions. [2023-11-06 22:54:40,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-06 22:54:40,976 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 178 transitions. [2023-11-06 22:54:40,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-06 22:54:40,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:40,977 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:40,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:41,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:41,183 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:41,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:41,184 INFO L85 PathProgramCache]: Analyzing trace with hash -736675100, now seen corresponding path program 1 times [2023-11-06 22:54:41,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:41,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857348981] [2023-11-06 22:54:41,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:41,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:41,204 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:41,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1642781194] [2023-11-06 22:54:41,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:41,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:41,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:41,206 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:41,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:54:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:41,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:54:41,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:41,472 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 22:54:41,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:41,566 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 22:54:41,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:41,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857348981] [2023-11-06 22:54:41,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:41,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642781194] [2023-11-06 22:54:41,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642781194] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:41,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:54:41,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-06 22:54:41,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054637531] [2023-11-06 22:54:41,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:41,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:54:41,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:41,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:54:41,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:54:41,570 INFO L87 Difference]: Start difference. First operand 155 states and 178 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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) [2023-11-06 22:54:41,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:41,927 INFO L93 Difference]: Finished difference Result 488 states and 594 transitions. [2023-11-06 22:54:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:54:41,927 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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 80 [2023-11-06 22:54:41,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:41,930 INFO L225 Difference]: With dead ends: 488 [2023-11-06 22:54:41,930 INFO L226 Difference]: Without dead ends: 336 [2023-11-06 22:54:41,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=191, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:54:41,932 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 231 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:41,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 96 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:54:41,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-06 22:54:41,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 335. [2023-11-06 22:54:41,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 333 states have (on average 1.1291291291291292) internal successors, (376), 334 states have internal predecessors, (376), 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) [2023-11-06 22:54:41,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 376 transitions. [2023-11-06 22:54:41,971 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 376 transitions. Word has length 80 [2023-11-06 22:54:41,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:41,971 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 376 transitions. [2023-11-06 22:54:41,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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) [2023-11-06 22:54:41,972 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 376 transitions. [2023-11-06 22:54:41,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-06 22:54:41,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:41,980 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 10, 10, 10, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:41,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:42,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:42,187 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-06 22:54:42,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:42,187 INFO L85 PathProgramCache]: Analyzing trace with hash 2028558090, now seen corresponding path program 2 times [2023-11-06 22:54:42,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:42,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649648141] [2023-11-06 22:54:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:42,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:42,226 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:54:42,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [83413976] [2023-11-06 22:54:42,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:54:42,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:42,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:42,227 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:42,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:54:42,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:54:42,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:54:42,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:42,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:42,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1988 backedges. 0 proven. 846 refuted. 0 times theorem prover too weak. 1142 trivial. 0 not checked. [2023-11-06 22:54:42,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1988 backedges. 0 proven. 846 refuted. 0 times theorem prover too weak. 1142 trivial. 0 not checked. [2023-11-06 22:54:42,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649648141] [2023-11-06 22:54:42,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:54:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83413976] [2023-11-06 22:54:42,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83413976] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:42,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:54:42,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:54:42,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309721354] [2023-11-06 22:54:42,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:42,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:42,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:42,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:42,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:42,822 INFO L87 Difference]: Start difference. First operand 335 states and 376 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 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) [2023-11-06 22:54:42,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:42,921 INFO L93 Difference]: Finished difference Result 404 states and 448 transitions. [2023-11-06 22:54:42,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:54:42,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 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) Word has length 170 [2023-11-06 22:54:42,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:42,922 INFO L225 Difference]: With dead ends: 404 [2023-11-06 22:54:42,923 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:54:42,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:42,924 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 54 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:42,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 20 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:42,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:54:42,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:54:42,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:54:42,926 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2023-11-06 22:54:42,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:42,926 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:54:42,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 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) [2023-11-06 22:54:42,927 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:54:42,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:54:42,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2023-11-06 22:54:42,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2023-11-06 22:54:42,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2023-11-06 22:54:42,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2023-11-06 22:54:42,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2023-11-06 22:54:42,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2023-11-06 22:54:42,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2023-11-06 22:54:42,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2023-11-06 22:54:42,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2023-11-06 22:54:42,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2023-11-06 22:54:42,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2023-11-06 22:54:42,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2023-11-06 22:54:42,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:43,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:54:43,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:54:45,261 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-06 22:54:45,262 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 30) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |ULTIMATE.start_main_~n~0#1| 1500)) [2023-11-06 22:54:45,262 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 30) no Hoare annotation was computed. [2023-11-06 22:54:45,262 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-06 22:54:45,262 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 13 64) the Hoare annotation is: (<= 0 |ULTIMATE.start_main_~i~0#1|) [2023-11-06 22:54:45,262 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-06 22:54:45,263 INFO L899 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2023-11-06 22:54:45,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-06 22:54:45,263 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-11-06 22:54:45,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:54:45,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2023-11-06 22:54:45,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-06 22:54:45,263 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-11-06 22:54:45,263 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-11-06 22:54:45,264 INFO L895 garLoopResultBuilder]: At program point L54-2(lines 54 62) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |ULTIMATE.start_main_~n~0#1| 1500)) [2023-11-06 22:54:45,264 INFO L899 garLoopResultBuilder]: For program point L54-3(lines 54 62) no Hoare annotation was computed. [2023-11-06 22:54:45,264 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-06 22:54:45,264 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2023-11-06 22:54:45,264 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:54:45,264 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 47) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |ULTIMATE.start_main_~n~0#1| 1500)) [2023-11-06 22:54:45,265 INFO L899 garLoopResultBuilder]: For program point L38-3(lines 38 47) no Hoare annotation was computed. [2023-11-06 22:54:45,265 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-11-06 22:54:45,266 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2023-11-06 22:54:45,267 INFO L895 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1499) (= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2023-11-06 22:54:45,267 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-11-06 22:54:45,267 INFO L895 garLoopResultBuilder]: At program point L56-2(lines 56 60) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1499) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |ULTIMATE.start_main_~n~0#1| 1500)) [2023-11-06 22:54:45,268 INFO L899 garLoopResultBuilder]: For program point L56-3(lines 56 60) no Hoare annotation was computed. [2023-11-06 22:54:45,268 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-11-06 22:54:45,268 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-11-06 22:54:45,268 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 40 45) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1499) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |ULTIMATE.start_main_~n~0#1| 1500)) [2023-11-06 22:54:45,268 INFO L899 garLoopResultBuilder]: For program point L40-3(lines 40 45) no Hoare annotation was computed. [2023-11-06 22:54:45,268 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:54:45,269 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-06 22:54:45,269 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 43) no Hoare annotation was computed. [2023-11-06 22:54:45,269 INFO L899 garLoopResultBuilder]: For program point L41-2(lines 41 43) no Hoare annotation was computed. [2023-11-06 22:54:45,269 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:54:45,269 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-06 22:54:45,270 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 32) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |ULTIMATE.start_main_~n~0#1| 1500)) [2023-11-06 22:54:45,270 INFO L899 garLoopResultBuilder]: For program point L25-3(lines 25 32) no Hoare annotation was computed. [2023-11-06 22:54:45,270 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-06 22:54:45,270 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-06 22:54:45,270 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-11-06 22:54:45,271 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-06 22:54:45,274 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:45,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:54:45,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:54:45 BoogieIcfgContainer [2023-11-06 22:54:45,315 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:54:45,316 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:54:45,316 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:54:45,317 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:54:45,317 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:35" (3/4) ... [2023-11-06 22:54:45,321 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:54:45,334 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-06 22:54:45,335 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:54:45,335 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:54:45,335 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:54:45,433 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:54:45,434 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:54:45,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:54:45,435 INFO L158 Benchmark]: Toolchain (without parser) took 10376.60ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 122.0MB in the beginning and 87.7MB in the end (delta: 34.3MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2023-11-06 22:54:45,435 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:54:45,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.01ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 111.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:54:45,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.09ms. Allocated memory is still 151.0MB. Free memory was 111.0MB in the beginning and 109.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:54:45,437 INFO L158 Benchmark]: Boogie Preprocessor took 27.70ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 108.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:54:45,438 INFO L158 Benchmark]: RCFGBuilder took 361.65ms. Allocated memory is still 151.0MB. Free memory was 107.8MB in the beginning and 95.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:54:45,439 INFO L158 Benchmark]: TraceAbstraction took 9566.66ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 94.7MB in the beginning and 92.9MB in the end (delta: 1.8MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2023-11-06 22:54:45,439 INFO L158 Benchmark]: Witness Printer took 118.31ms. Allocated memory is still 195.0MB. Free memory was 92.9MB in the beginning and 87.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:54:45,443 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.01ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 111.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.09ms. Allocated memory is still 151.0MB. Free memory was 111.0MB in the beginning and 109.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.70ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 108.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 361.65ms. Allocated memory is still 151.0MB. Free memory was 107.8MB in the beginning and 95.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9566.66ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 94.7MB in the beginning and 92.9MB in the end (delta: 1.8MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. * Witness Printer took 118.31ms. Allocated memory is still 195.0MB. Free memory was 92.9MB in the beginning and 87.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 12, TraceHistogramMax: 30, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 964 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 964 mSDsluCounter, 523 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 272 mSDsCounter, 211 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 515 IncrementalHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 211 mSolverCounterUnsat, 251 mSDtfsCounter, 515 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 745 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=11, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 164 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 145 NumberOfFragments, 136 HoareAnnotationTreeSize, 8 FomulaSimplifications, 5633 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 8 FomulaSimplificationsInter, 2740 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 423 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 732 ConstructedInterpolants, 0 QuantifiedInterpolants, 1832 SizeOfPredicates, 14 NumberOfNonLiveVariables, 980 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 3380/5258 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((((m <= 1000) && (i <= 2147483646)) && (0 <= j)) && (0 <= i)) && (j <= 2147483646)) && (n == 1500)) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ((((((m <= 1000) && (0 <= j)) && (0 <= i)) && (i <= 1499)) && (n == 1500)) && (j <= 1499)) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((((m <= 1000) && (i <= 2147483646)) && (0 <= j)) && (0 <= i)) && (j <= 2147483646)) && (n == 1500)) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (0 <= i) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((m <= 1000) && (0 <= j)) && (0 <= i)) && (i <= 1499)) && (j <= 2147483646)) && (n == 1500)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((m <= 1000) && (i <= 2147483646)) && (0 <= j)) && (0 <= i)) && (j <= 2147483646)) && (n == 1500)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((m <= 1000) && (i <= 999)) && (0 <= j)) && (0 <= i)) && (j <= 2147483646)) && (n == 1500)) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: ((((((m <= 1000) && (0 <= j)) && (0 <= i)) && (i <= 1499)) && (j <= 2147483646)) && (n == 1500)) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:54:45,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cf00e42-9db7-401e-9036-933ff12f6ae7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE