./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45a8f33f173b19ce98ca13bb7c3a70605cebce85501309e729b51c966620adf7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:03:09,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:03:09,272 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:03:09,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:03:09,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:03:09,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:03:09,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:03:09,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:03:09,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:03:09,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:03:09,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:03:09,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:03:09,308 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:03:09,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:03:09,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:03:09,310 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:03:09,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:03:09,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:03:09,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:03:09,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:03:09,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:03:09,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:03:09,313 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:03:09,314 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:03:09,314 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:03:09,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:03:09,315 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:03:09,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:03:09,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:03:09,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:03:09,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:09,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:03:09,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:03:09,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:03:09,318 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:03:09,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:03:09,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:03:09,319 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:03:09,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:03:09,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:03:09,319 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:03:09,320 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_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45a8f33f173b19ce98ca13bb7c3a70605cebce85501309e729b51c966620adf7 [2023-11-12 02:03:09,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:03:09,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:03:09,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:03:09,649 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:03:09,650 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:03:09,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i [2023-11-12 02:03:12,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:03:13,211 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:03:13,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i [2023-11-12 02:03:13,231 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/data/4cd027e51/5cc6f38515ad40039b61aa774255d813/FLAG6b6612a73 [2023-11-12 02:03:13,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/data/4cd027e51/5cc6f38515ad40039b61aa774255d813 [2023-11-12 02:03:13,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:03:13,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:03:13,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:13,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:03:13,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:03:13,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f7b39a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13, skipping insertion in model container [2023-11-12 02:03:13,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,297 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:03:13,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:13,634 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:03:13,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:13,704 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:03:13,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13 WrapperNode [2023-11-12 02:03:13,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:13,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:13,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:03:13,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:03:13,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,748 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,784 INFO L138 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 119 [2023-11-12 02:03:13,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:13,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:03:13,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:03:13,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:03:13,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:03:13,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:03:13,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:03:13,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:03:13,842 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (1/1) ... [2023-11-12 02:03:13,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:13,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:13,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:03:13,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:03:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:03:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:03:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:03:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:03:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:03:13,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:03:14,052 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:03:14,054 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:03:14,274 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:03:14,281 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:03:14,282 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:03:14,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:14 BoogieIcfgContainer [2023-11-12 02:03:14,284 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:03:14,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:03:14,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:03:14,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:03:14,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:03:13" (1/3) ... [2023-11-12 02:03:14,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5976a2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:14, skipping insertion in model container [2023-11-12 02:03:14,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:13" (2/3) ... [2023-11-12 02:03:14,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5976a2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:14, skipping insertion in model container [2023-11-12 02:03:14,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:14" (3/3) ... [2023-11-12 02:03:14,295 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrspn-alloca-1.i [2023-11-12 02:03:14,317 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:03:14,318 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-12 02:03:14,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:03:14,391 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56cd95e5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:03:14,392 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-12 02:03:14,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 47 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:14,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 02:03:14,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:14,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:03:14,404 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:14,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:14,410 INFO L85 PathProgramCache]: Analyzing trace with hash 889510733, now seen corresponding path program 1 times [2023-11-12 02:03:14,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:14,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505982341] [2023-11-12 02:03:14,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:14,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:14,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:14,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505982341] [2023-11-12 02:03:14,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505982341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:14,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:14,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:14,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824098608] [2023-11-12 02:03:14,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:14,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:14,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:14,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:14,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:14,678 INFO L87 Difference]: Start difference. First operand has 48 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 47 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2023-11-12 02:03:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:14,726 INFO L93 Difference]: Finished difference Result 80 states and 99 transitions. [2023-11-12 02:03:14,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:14,729 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 [2023-11-12 02:03:14,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:14,737 INFO L225 Difference]: With dead ends: 80 [2023-11-12 02:03:14,738 INFO L226 Difference]: Without dead ends: 33 [2023-11-12 02:03:14,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:14,745 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 45 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:14,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 46 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:14,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-12 02:03:14,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-12 02:03:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.565217391304348) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:14,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2023-11-12 02:03:14,781 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 6 [2023-11-12 02:03:14,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:14,782 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2023-11-12 02:03:14,782 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) [2023-11-12 02:03:14,782 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2023-11-12 02:03:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 02:03:14,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:14,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:14,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:03:14,784 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:14,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:14,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028999, now seen corresponding path program 1 times [2023-11-12 02:03:14,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:14,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363536651] [2023-11-12 02:03:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:14,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:14,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:14,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363536651] [2023-11-12 02:03:14,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363536651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:14,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:14,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:14,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116674004] [2023-11-12 02:03:14,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:14,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:14,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:14,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:14,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:14,939 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:14,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:14,985 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2023-11-12 02:03:14,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:14,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 02:03:14,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:14,988 INFO L225 Difference]: With dead ends: 63 [2023-11-12 02:03:14,991 INFO L226 Difference]: Without dead ends: 61 [2023-11-12 02:03:14,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:14,993 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 27 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:14,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 53 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-12 02:03:15,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 51. [2023-11-12 02:03:15,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.5365853658536586) internal successors, (63), 50 states have internal predecessors, (63), 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) [2023-11-12 02:03:15,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2023-11-12 02:03:15,012 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 7 [2023-11-12 02:03:15,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:15,013 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2023-11-12 02:03:15,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,014 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2023-11-12 02:03:15,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 02:03:15,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:15,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:15,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:03:15,017 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:15,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:15,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1806876041, now seen corresponding path program 1 times [2023-11-12 02:03:15,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:15,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222966919] [2023-11-12 02:03:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:15,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:15,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:15,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222966919] [2023-11-12 02:03:15,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222966919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:15,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:15,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:15,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541401754] [2023-11-12 02:03:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:15,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:15,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:15,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:15,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:15,110 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:15,133 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2023-11-12 02:03:15,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:15,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 02:03:15,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:15,135 INFO L225 Difference]: With dead ends: 51 [2023-11-12 02:03:15,135 INFO L226 Difference]: Without dead ends: 49 [2023-11-12 02:03:15,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:15,137 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:15,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:15,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-12 02:03:15,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 31. [2023-11-12 02:03:15,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 30 states have internal predecessors, (34), 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) [2023-11-12 02:03:15,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2023-11-12 02:03:15,153 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 7 [2023-11-12 02:03:15,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:15,154 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2023-11-12 02:03:15,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,155 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2023-11-12 02:03:15,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:03:15,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:15,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:15,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:03:15,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:15,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:15,167 INFO L85 PathProgramCache]: Analyzing trace with hash 628418293, now seen corresponding path program 1 times [2023-11-12 02:03:15,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:15,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758106409] [2023-11-12 02:03:15,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:15,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:15,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:15,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758106409] [2023-11-12 02:03:15,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758106409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:15,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:15,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482572679] [2023-11-12 02:03:15,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:15,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:15,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:15,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:15,236 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:15,256 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2023-11-12 02:03:15,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:15,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 02:03:15,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:15,258 INFO L225 Difference]: With dead ends: 31 [2023-11-12 02:03:15,258 INFO L226 Difference]: Without dead ends: 29 [2023-11-12 02:03:15,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:15,260 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:15,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:15,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-12 02:03:15,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-12 02:03:15,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.391304347826087) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-12 02:03:15,266 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 10 [2023-11-12 02:03:15,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:15,267 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-12 02:03:15,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,267 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-12 02:03:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:03:15,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:15,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:15,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:03:15,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:15,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:15,270 INFO L85 PathProgramCache]: Analyzing trace with hash 628419956, now seen corresponding path program 1 times [2023-11-12 02:03:15,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:15,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155694391] [2023-11-12 02:03:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:15,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:15,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:15,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155694391] [2023-11-12 02:03:15,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155694391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:15,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:15,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:03:15,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865297459] [2023-11-12 02:03:15,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:15,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:03:15,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:15,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:03:15,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:15,391 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:15,441 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2023-11-12 02:03:15,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:03:15,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 02:03:15,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:15,445 INFO L225 Difference]: With dead ends: 74 [2023-11-12 02:03:15,447 INFO L226 Difference]: Without dead ends: 50 [2023-11-12 02:03:15,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:15,449 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:15,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 63 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:15,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-12 02:03:15,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 34. [2023-11-12 02:03:15,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 33 states have internal predecessors, (38), 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) [2023-11-12 02:03:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2023-11-12 02:03:15,463 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 10 [2023-11-12 02:03:15,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:15,464 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2023-11-12 02:03:15,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,465 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2023-11-12 02:03:15,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:03:15,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:15,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:15,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:03:15,466 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:15,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:15,467 INFO L85 PathProgramCache]: Analyzing trace with hash -180926670, now seen corresponding path program 1 times [2023-11-12 02:03:15,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:15,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032004769] [2023-11-12 02:03:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:15,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:15,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:15,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032004769] [2023-11-12 02:03:15,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032004769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:15,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:15,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:03:15,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976107988] [2023-11-12 02:03:15,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:15,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:03:15,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:15,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:03:15,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:15,565 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:15,601 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2023-11-12 02:03:15,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:03:15,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 02:03:15,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:15,602 INFO L225 Difference]: With dead ends: 43 [2023-11-12 02:03:15,602 INFO L226 Difference]: Without dead ends: 41 [2023-11-12 02:03:15,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:03:15,604 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:15,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 76 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-12 02:03:15,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2023-11-12 02:03:15,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 39 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2023-11-12 02:03:15,612 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 10 [2023-11-12 02:03:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:15,612 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2023-11-12 02:03:15,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-11-12 02:03:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:03:15,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:15,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:15,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:03:15,614 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:15,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:15,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1993869323, now seen corresponding path program 1 times [2023-11-12 02:03:15,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:15,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73679987] [2023-11-12 02:03:15,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:15,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:15,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:15,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:15,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73679987] [2023-11-12 02:03:15,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73679987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:15,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:15,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:15,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359668749] [2023-11-12 02:03:15,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:15,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:15,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:15,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:15,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:15,658 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:15,689 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2023-11-12 02:03:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:15,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-12 02:03:15,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:15,690 INFO L225 Difference]: With dead ends: 75 [2023-11-12 02:03:15,690 INFO L226 Difference]: Without dead ends: 68 [2023-11-12 02:03:15,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:15,692 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:15,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 47 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:15,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-12 02:03:15,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2023-11-12 02:03:15,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 58 states have (on average 1.293103448275862) internal successors, (75), 63 states have internal predecessors, (75), 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) [2023-11-12 02:03:15,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2023-11-12 02:03:15,703 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 11 [2023-11-12 02:03:15,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:15,703 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2023-11-12 02:03:15,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,704 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2023-11-12 02:03:15,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:03:15,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:15,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:15,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:03:15,705 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:15,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:15,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1491751347, now seen corresponding path program 1 times [2023-11-12 02:03:15,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:15,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581690099] [2023-11-12 02:03:15,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:15,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:15,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:15,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:15,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581690099] [2023-11-12 02:03:15,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581690099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:15,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:15,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:15,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413250176] [2023-11-12 02:03:15,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:15,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:15,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:15,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:15,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:15,761 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:15,781 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2023-11-12 02:03:15,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:15,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-12 02:03:15,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:15,786 INFO L225 Difference]: With dead ends: 64 [2023-11-12 02:03:15,786 INFO L226 Difference]: Without dead ends: 57 [2023-11-12 02:03:15,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:15,788 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:15,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 23 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:15,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-12 02:03:15,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 33. [2023-11-12 02:03:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 32 states have internal predecessors, (38), 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) [2023-11-12 02:03:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2023-11-12 02:03:15,801 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2023-11-12 02:03:15,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:15,801 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2023-11-12 02:03:15,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2023-11-12 02:03:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:03:15,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:15,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:15,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:03:15,803 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:15,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:15,804 INFO L85 PathProgramCache]: Analyzing trace with hash 36780700, now seen corresponding path program 1 times [2023-11-12 02:03:15,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:15,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333650593] [2023-11-12 02:03:15,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:15,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:15,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:15,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:15,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333650593] [2023-11-12 02:03:15,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333650593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:15,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:15,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:03:15,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707288651] [2023-11-12 02:03:15,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:15,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:03:15,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:15,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:03:15,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:15,897 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:15,931 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2023-11-12 02:03:15,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:03:15,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-12 02:03:15,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:15,938 INFO L225 Difference]: With dead ends: 64 [2023-11-12 02:03:15,938 INFO L226 Difference]: Without dead ends: 48 [2023-11-12 02:03:15,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:15,941 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:15,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 49 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:15,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-12 02:03:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2023-11-12 02:03:15,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 45 states have internal predecessors, (52), 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) [2023-11-12 02:03:15,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2023-11-12 02:03:15,976 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 14 [2023-11-12 02:03:15,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:15,977 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2023-11-12 02:03:15,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:15,977 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2023-11-12 02:03:15,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:03:15,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:15,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:15,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:03:15,979 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:15,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:15,980 INFO L85 PathProgramCache]: Analyzing trace with hash 737845278, now seen corresponding path program 1 times [2023-11-12 02:03:15,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:15,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296270088] [2023-11-12 02:03:15,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:15,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:16,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:16,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296270088] [2023-11-12 02:03:16,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296270088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:16,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:16,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:03:16,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338009375] [2023-11-12 02:03:16,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:16,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:03:16,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:16,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:03:16,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:16,077 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:16,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:16,119 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2023-11-12 02:03:16,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:03:16,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-12 02:03:16,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:16,122 INFO L225 Difference]: With dead ends: 54 [2023-11-12 02:03:16,122 INFO L226 Difference]: Without dead ends: 52 [2023-11-12 02:03:16,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:03:16,123 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:16,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 59 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:16,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-12 02:03:16,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-12 02:03:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 51 states have internal predecessors, (58), 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) [2023-11-12 02:03:16,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2023-11-12 02:03:16,144 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 14 [2023-11-12 02:03:16,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:16,144 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2023-11-12 02:03:16,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:16,145 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2023-11-12 02:03:16,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 02:03:16,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:16,147 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:16,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:03:16,147 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:16,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:16,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1917321044, now seen corresponding path program 1 times [2023-11-12 02:03:16,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:16,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616737896] [2023-11-12 02:03:16,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:16,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:16,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:16,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616737896] [2023-11-12 02:03:16,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616737896] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:16,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841145925] [2023-11-12 02:03:16,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:16,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:16,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:16,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:16,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:03:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:16,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:03:16,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:16,449 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:16,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:16,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841145925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:16,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:03:16,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-12 02:03:16,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575277594] [2023-11-12 02:03:16,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:16,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:03:16,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:16,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:03:16,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:03:16,452 INFO L87 Difference]: Start difference. First operand 52 states and 58 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) [2023-11-12 02:03:16,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:16,497 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2023-11-12 02:03:16,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:03:16,497 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 16 [2023-11-12 02:03:16,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:16,498 INFO L225 Difference]: With dead ends: 53 [2023-11-12 02:03:16,498 INFO L226 Difference]: Without dead ends: 52 [2023-11-12 02:03:16,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:03:16,499 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:16,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 56 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:16,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-12 02:03:16,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2023-11-12 02:03:16,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 50 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) [2023-11-12 02:03:16,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2023-11-12 02:03:16,506 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 16 [2023-11-12 02:03:16,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:16,506 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2023-11-12 02:03:16,507 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) [2023-11-12 02:03:16,507 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2023-11-12 02:03:16,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:03:16,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:16,508 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:16,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:16,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:16,714 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:16,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:16,716 INFO L85 PathProgramCache]: Analyzing trace with hash 692589843, now seen corresponding path program 1 times [2023-11-12 02:03:16,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:16,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079503210] [2023-11-12 02:03:16,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:16,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:16,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:16,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079503210] [2023-11-12 02:03:16,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079503210] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:16,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776913166] [2023-11-12 02:03:16,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:16,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:16,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:16,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:16,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:03:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:16,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:03:16,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:16,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:03:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:16,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776913166] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:03:16,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:03:16,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-12 02:03:16,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321880638] [2023-11-12 02:03:16,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:03:16,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:03:16,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:16,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:03:16,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:03:16,975 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:17,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:17,091 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2023-11-12 02:03:17,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:03:17,092 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-12 02:03:17,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:17,094 INFO L225 Difference]: With dead ends: 92 [2023-11-12 02:03:17,094 INFO L226 Difference]: Without dead ends: 91 [2023-11-12 02:03:17,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:03:17,096 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 21 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:17,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 78 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:03:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-12 02:03:17,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2023-11-12 02:03:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.130952380952381) internal successors, (95), 86 states have internal predecessors, (95), 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) [2023-11-12 02:03:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2023-11-12 02:03:17,107 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 17 [2023-11-12 02:03:17,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:17,107 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2023-11-12 02:03:17,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:17,108 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2023-11-12 02:03:17,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:03:17,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:17,109 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:17,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:17,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:03:17,314 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:17,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:17,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1973612760, now seen corresponding path program 1 times [2023-11-12 02:03:17,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:17,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85043322] [2023-11-12 02:03:17,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:17,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:17,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:17,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:17,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85043322] [2023-11-12 02:03:17,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85043322] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:17,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058704046] [2023-11-12 02:03:17,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:17,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:17,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:17,439 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:17,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:03:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:17,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:03:17,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:17,574 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:17,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:17,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058704046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:17,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:03:17,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-12 02:03:17,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711186866] [2023-11-12 02:03:17,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:17,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:03:17,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:17,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:03:17,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:03:17,579 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2023-11-12 02:03:17,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:17,623 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2023-11-12 02:03:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:03:17,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-12 02:03:17,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:17,625 INFO L225 Difference]: With dead ends: 87 [2023-11-12 02:03:17,625 INFO L226 Difference]: Without dead ends: 86 [2023-11-12 02:03:17,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:03:17,626 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:17,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 88 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:17,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-12 02:03:17,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-12 02:03:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 1.119047619047619) internal successors, (94), 85 states have internal predecessors, (94), 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) [2023-11-12 02:03:17,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2023-11-12 02:03:17,636 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 20 [2023-11-12 02:03:17,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:17,637 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2023-11-12 02:03:17,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2023-11-12 02:03:17,637 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2023-11-12 02:03:17,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 02:03:17,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:17,638 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:17,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:17,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:17,844 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:17,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:17,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1052453501, now seen corresponding path program 1 times [2023-11-12 02:03:17,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:17,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981328423] [2023-11-12 02:03:17,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:17,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:17,937 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:17,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:17,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981328423] [2023-11-12 02:03:17,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981328423] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:17,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241212762] [2023-11-12 02:03:17,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:17,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:17,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:17,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:17,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:03:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:18,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:03:18,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:18,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:18,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:03:18,133 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:18,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241212762] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:03:18,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:03:18,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-12 02:03:18,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369051088] [2023-11-12 02:03:18,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:03:18,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:03:18,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:18,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:03:18,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:03:18,135 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:18,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:18,231 INFO L93 Difference]: Finished difference Result 105 states and 115 transitions. [2023-11-12 02:03:18,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:03:18,232 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-12 02:03:18,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:18,233 INFO L225 Difference]: With dead ends: 105 [2023-11-12 02:03:18,233 INFO L226 Difference]: Without dead ends: 104 [2023-11-12 02:03:18,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:03:18,234 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:18,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 96 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:18,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-12 02:03:18,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-11-12 02:03:18,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 102 states have (on average 1.0980392156862746) internal successors, (112), 103 states have internal predecessors, (112), 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) [2023-11-12 02:03:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2023-11-12 02:03:18,245 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 21 [2023-11-12 02:03:18,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:18,245 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2023-11-12 02:03:18,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2023-11-12 02:03:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 02:03:18,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:18,247 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:18,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:18,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-12 02:03:18,454 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:18,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:18,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1274375013, now seen corresponding path program 2 times [2023-11-12 02:03:18,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:18,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265314384] [2023-11-12 02:03:18,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:18,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:18,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:18,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265314384] [2023-11-12 02:03:18,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265314384] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:18,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497137958] [2023-11-12 02:03:18,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:03:18,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:18,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:18,643 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:18,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:03:18,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:03:18,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:03:18,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:03:18,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-12 02:03:18,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:03:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-12 02:03:18,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497137958] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:03:18,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:03:18,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2023-11-12 02:03:18,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598055838] [2023-11-12 02:03:18,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:03:18,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-12 02:03:18,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:18,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 02:03:18,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:03:18,940 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 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) [2023-11-12 02:03:19,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:19,197 INFO L93 Difference]: Finished difference Result 128 states and 140 transitions. [2023-11-12 02:03:19,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-12 02:03:19,198 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-12 02:03:19,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:19,199 INFO L225 Difference]: With dead ends: 128 [2023-11-12 02:03:19,199 INFO L226 Difference]: Without dead ends: 87 [2023-11-12 02:03:19,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2023-11-12 02:03:19,201 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 84 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:19,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 55 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:03:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-12 02:03:19,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 48. [2023-11-12 02:03:19,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.0638297872340425) internal successors, (50), 47 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:19,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2023-11-12 02:03:19,207 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 35 [2023-11-12 02:03:19,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:19,208 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2023-11-12 02:03:19,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 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) [2023-11-12 02:03:19,208 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2023-11-12 02:03:19,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 02:03:19,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:19,209 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:19,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:19,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-12 02:03:19,415 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:03:19,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:19,416 INFO L85 PathProgramCache]: Analyzing trace with hash -719514865, now seen corresponding path program 2 times [2023-11-12 02:03:19,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:19,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594551447] [2023-11-12 02:03:19,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:19,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:19,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:19,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594551447] [2023-11-12 02:03:19,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594551447] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:19,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577475210] [2023-11-12 02:03:19,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:03:19,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:19,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:19,588 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:19,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:03:19,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:03:19,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:03:19,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:03:19,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:19,760 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-12 02:03:19,760 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:03:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-12 02:03:19,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577475210] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:03:19,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:03:19,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2023-11-12 02:03:19,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891906151] [2023-11-12 02:03:19,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:03:19,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-12 02:03:19,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:19,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 02:03:19,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:03:19,861 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 18 states, 17 states have (on average 4.411764705882353) internal successors, (75), 18 states have internal predecessors, (75), 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) [2023-11-12 02:03:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:20,107 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2023-11-12 02:03:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-12 02:03:20,108 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.411764705882353) internal successors, (75), 18 states have internal predecessors, (75), 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 39 [2023-11-12 02:03:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:20,108 INFO L225 Difference]: With dead ends: 57 [2023-11-12 02:03:20,109 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:03:20,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2023-11-12 02:03:20,110 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 31 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:20,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 88 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:03:20,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:03:20,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:03:20,112 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) [2023-11-12 02:03:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:03:20,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2023-11-12 02:03:20,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:20,112 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:03:20,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.411764705882353) internal successors, (75), 18 states have internal predecessors, (75), 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) [2023-11-12 02:03:20,113 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:03:20,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:03:20,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2023-11-12 02:03:20,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2023-11-12 02:03:20,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2023-11-12 02:03:20,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2023-11-12 02:03:20,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2023-11-12 02:03:20,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2023-11-12 02:03:20,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2023-11-12 02:03:20,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2023-11-12 02:03:20,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2023-11-12 02:03:20,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2023-11-12 02:03:20,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2023-11-12 02:03:20,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2023-11-12 02:03:20,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-12 02:03:20,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-12 02:03:20,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:03:20,740 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2023-11-12 02:03:20,741 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 529 554) no Hoare annotation was computed. [2023-11-12 02:03:20,741 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2023-11-12 02:03:20,741 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2023-11-12 02:03:20,741 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:03:20,741 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 534) no Hoare annotation was computed. [2023-11-12 02:03:20,741 INFO L899 garLoopResultBuilder]: For program point L532-2(lines 529 554) no Hoare annotation was computed. [2023-11-12 02:03:20,741 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 525) no Hoare annotation was computed. [2023-11-12 02:03:20,741 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2023-11-12 02:03:20,742 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2023-11-12 02:03:20,742 INFO L899 garLoopResultBuilder]: For program point L541-1(line 541) no Hoare annotation was computed. [2023-11-12 02:03:20,742 INFO L899 garLoopResultBuilder]: For program point L541-2(lines 541 544) no Hoare annotation was computed. [2023-11-12 02:03:20,742 INFO L899 garLoopResultBuilder]: For program point L541-4(lines 541 544) no Hoare annotation was computed. [2023-11-12 02:03:20,742 INFO L899 garLoopResultBuilder]: For program point L541-5(line 541) no Hoare annotation was computed. [2023-11-12 02:03:20,742 INFO L899 garLoopResultBuilder]: For program point L541-6(line 541) no Hoare annotation was computed. [2023-11-12 02:03:20,742 INFO L895 garLoopResultBuilder]: At program point L541-7(lines 541 544) the Hoare annotation is: (and (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse0 .cse1 .cse2))) (<= |ULTIMATE.start_main_~length2~0#1| 2147483647)) [2023-11-12 02:03:20,743 INFO L899 garLoopResultBuilder]: For program point L541-8(lines 541 544) no Hoare annotation was computed. [2023-11-12 02:03:20,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2023-11-12 02:03:20,743 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:03:20,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2023-11-12 02:03:20,743 INFO L899 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2023-11-12 02:03:20,743 INFO L899 garLoopResultBuilder]: For program point L551-1(line 551) no Hoare annotation was computed. [2023-11-12 02:03:20,743 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 535 537) no Hoare annotation was computed. [2023-11-12 02:03:20,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2023-11-12 02:03:20,743 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2023-11-12 02:03:20,744 INFO L899 garLoopResultBuilder]: For program point L552-1(line 552) no Hoare annotation was computed. [2023-11-12 02:03:20,744 INFO L899 garLoopResultBuilder]: For program point L519-1(lines 519 526) no Hoare annotation was computed. [2023-11-12 02:03:20,744 INFO L899 garLoopResultBuilder]: For program point L519-3(lines 519 526) no Hoare annotation was computed. [2023-11-12 02:03:20,744 INFO L895 garLoopResultBuilder]: At program point L519-4(lines 519 526) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2023-11-12 02:03:20,744 INFO L899 garLoopResultBuilder]: For program point L519-5(lines 519 526) no Hoare annotation was computed. [2023-11-12 02:03:20,744 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:03:20,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2023-11-12 02:03:20,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:03:20,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2023-11-12 02:03:20,744 INFO L899 garLoopResultBuilder]: For program point L546-1(line 546) no Hoare annotation was computed. [2023-11-12 02:03:20,745 INFO L899 garLoopResultBuilder]: For program point L546-2(lines 546 549) no Hoare annotation was computed. [2023-11-12 02:03:20,745 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 541) no Hoare annotation was computed. [2023-11-12 02:03:20,745 INFO L899 garLoopResultBuilder]: For program point L546-4(lines 546 549) no Hoare annotation was computed. [2023-11-12 02:03:20,745 INFO L899 garLoopResultBuilder]: For program point L546-5(line 546) no Hoare annotation was computed. [2023-11-12 02:03:20,745 INFO L899 garLoopResultBuilder]: For program point L546-6(line 546) no Hoare annotation was computed. [2023-11-12 02:03:20,745 INFO L895 garLoopResultBuilder]: At program point L546-7(lines 546 549) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and (= |ULTIMATE.start_main_~i~1#1| 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 (<= |ULTIMATE.start_main_~i~1#1| 2147483646) .cse1 .cse2 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse3))) [2023-11-12 02:03:20,745 INFO L899 garLoopResultBuilder]: For program point L546-8(lines 546 549) no Hoare annotation was computed. [2023-11-12 02:03:20,745 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 546) no Hoare annotation was computed. [2023-11-12 02:03:20,746 INFO L899 garLoopResultBuilder]: For program point L522-1(line 522) no Hoare annotation was computed. [2023-11-12 02:03:20,746 INFO L899 garLoopResultBuilder]: For program point L522-3(lines 522 523) no Hoare annotation was computed. [2023-11-12 02:03:20,746 INFO L895 garLoopResultBuilder]: At program point L522-5(lines 522 523) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2023-11-12 02:03:20,746 INFO L899 garLoopResultBuilder]: For program point L522-6(lines 522 523) no Hoare annotation was computed. [2023-11-12 02:03:20,746 INFO L899 garLoopResultBuilder]: For program point cstrspn_returnLabel#1(lines 514 528) no Hoare annotation was computed. [2023-11-12 02:03:20,750 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:20,753 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:03:20,765 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~length1~0 [2023-11-12 02:03:20,766 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~length1~0 [2023-11-12 02:03:20,766 ERROR L464 ceAbstractionStarter]: Failed to backtranslate (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2023-11-12 02:03:20,766 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~length1~0 [2023-11-12 02:03:20,766 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~length1~0 [2023-11-12 02:03:20,766 ERROR L464 ceAbstractionStarter]: Failed to backtranslate (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2023-11-12 02:03:20,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:03:20 BoogieIcfgContainer [2023-11-12 02:03:20,767 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:03:20,767 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:03:20,768 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:03:20,768 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:03:20,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:14" (3/4) ... [2023-11-12 02:03:20,770 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:03:20,779 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 02:03:20,779 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:03:20,780 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 02:03:20,780 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:03:20,874 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:03:20,875 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:03:20,875 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:03:20,876 INFO L158 Benchmark]: Toolchain (without parser) took 7628.36ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 110.1MB in the beginning and 100.5MB in the end (delta: 9.6MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2023-11-12 02:03:20,876 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:03:20,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.18ms. Allocated memory is still 148.9MB. Free memory was 110.1MB in the beginning and 93.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 02:03:20,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.48ms. Allocated memory is still 148.9MB. Free memory was 93.3MB in the beginning and 91.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:03:20,877 INFO L158 Benchmark]: Boogie Preprocessor took 55.48ms. Allocated memory is still 148.9MB. Free memory was 91.3MB in the beginning and 89.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:03:20,878 INFO L158 Benchmark]: RCFGBuilder took 443.50ms. Allocated memory is still 148.9MB. Free memory was 89.7MB in the beginning and 75.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:03:20,878 INFO L158 Benchmark]: TraceAbstraction took 6479.70ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 74.5MB in the beginning and 105.8MB in the end (delta: -31.3MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2023-11-12 02:03:20,879 INFO L158 Benchmark]: Witness Printer took 107.66ms. Allocated memory is still 188.7MB. Free memory was 105.8MB in the beginning and 100.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:03:20,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.18ms. Allocated memory is still 148.9MB. Free memory was 110.1MB in the beginning and 93.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.48ms. Allocated memory is still 148.9MB. Free memory was 93.3MB in the beginning and 91.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.48ms. Allocated memory is still 148.9MB. Free memory was 91.3MB in the beginning and 89.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.50ms. Allocated memory is still 148.9MB. Free memory was 89.7MB in the beginning and 75.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6479.70ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 74.5MB in the beginning and 105.8MB in the end (delta: -31.3MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. * Witness Printer took 107.66ms. Allocated memory is still 188.7MB. Free memory was 105.8MB in the beginning and 100.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~length1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~length1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~length1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~length1~0 * 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: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 541]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 546]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: 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, 48 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 361 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 361 mSDsluCounter, 930 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 561 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 458 IncrementalHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 369 mSDtfsCounter, 458 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=14, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 119 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 24 NumberOfFragments, 76 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1395 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 4 FomulaSimplificationsInter, 600 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 396 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 1252 SizeOfPredicates, 14 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 202/416 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: 541]: Loop Invariant Derived loop invariant: ((((((i == 0) && (1 <= length1)) && (1 <= length2)) && (length1 <= 2147483647)) || (((((1 <= i) && (i <= 2147483646)) && (1 <= length1)) && (1 <= length2)) && (length1 <= 2147483647))) && (length2 <= 2147483647)) - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: ((((((i == 0) && (1 <= length1)) && (1 <= length2)) && (length1 <= 2147483647)) && (length2 <= 2147483647)) || ((((((1 <= length1) && (i <= 2147483646)) && (1 <= length2)) && (length1 <= 2147483647)) && (1 <= i)) && (length2 <= 2147483647))) - InvariantResult [Line: 519]: Loop Invariant [2023-11-12 02:03:20,892 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~length1~0 [2023-11-12 02:03:20,893 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~length1~0 Derived loop invariant: NULL - InvariantResult [Line: 522]: Loop Invariant [2023-11-12 02:03:20,893 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~length1~0 [2023-11-12 02:03:20,893 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~length1~0 Derived loop invariant: NULL RESULT: Ultimate proved your program to be correct! [2023-11-12 02:03:20,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915173cd-9115-45df-9713-5cbb72b18d74/bin/uautomizer-verify-uTZkv6EMXl/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