./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:46:08,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:46:08,973 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 22:46:08,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:46:08,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:46:09,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:46:09,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:46:09,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:46:09,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:46:09,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:46:09,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:46:09,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:46:09,009 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:46:09,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:46:09,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:46:09,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:46:09,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:46:09,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:46:09,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:46:09,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:46:09,014 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:46:09,015 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:46:09,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:46:09,016 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:46:09,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:46:09,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:46:09,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:46:09,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:46:09,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:46:09,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:46:09,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:46:09,022 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:46:09,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:46:09,023 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:46:09,024 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:46:09,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:46:09,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:46:09,025 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:46:09,025 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_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 [2023-11-06 22:46:09,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:46:09,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:46:09,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:46:09,303 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:46:09,304 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:46:09,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2023-11-06 22:46:12,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:46:12,683 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:46:12,684 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2023-11-06 22:46:12,691 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/data/f0db59fe5/109991ebb4f84c41a3ce3c6d9526c2bd/FLAG2a95a13f3 [2023-11-06 22:46:12,706 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/data/f0db59fe5/109991ebb4f84c41a3ce3c6d9526c2bd [2023-11-06 22:46:12,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:46:12,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:46:12,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:46:12,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:46:12,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:46:12,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7731a9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12, skipping insertion in model container [2023-11-06 22:46:12,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,738 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:46:12,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:46:12,884 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:46:12,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:46:12,908 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:46:12,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12 WrapperNode [2023-11-06 22:46:12,909 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:46:12,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:46:12,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:46:12,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:46:12,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,947 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-11-06 22:46:12,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:46:12,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:46:12,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:46:12,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:46:12,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:46:12,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:46:12,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:46:12,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:46:12,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (1/1) ... [2023-11-06 22:46:12,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:46:12,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:13,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:13,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:46:13,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:46:13,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:46:13,094 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:46:13,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:46:13,195 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:46:13,202 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:46:13,202 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:46:13,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:46:13 BoogieIcfgContainer [2023-11-06 22:46:13,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:46:13,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:46:13,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:46:13,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:46:13,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:46:12" (1/3) ... [2023-11-06 22:46:13,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440564c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:46:13, skipping insertion in model container [2023-11-06 22:46:13,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:12" (2/3) ... [2023-11-06 22:46:13,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440564c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:46:13, skipping insertion in model container [2023-11-06 22:46:13,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:46:13" (3/3) ... [2023-11-06 22:46:13,215 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2023-11-06 22:46:13,236 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:46:13,237 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:46:13,304 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:46:13,313 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7273b40e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:46:13,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-06 22:46:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 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) [2023-11-06 22:46:13,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:46:13,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:13,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:46:13,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:13,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:13,331 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-11-06 22:46:13,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:13,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473558156] [2023-11-06 22:46:13,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:13,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:13,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:13,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473558156] [2023-11-06 22:46:13,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473558156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:13,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:13,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:46:13,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442901568] [2023-11-06 22:46:13,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:13,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:46:13,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:13,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:13,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:46:13,670 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:13,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:13,714 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2023-11-06 22:46:13,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:13,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-06 22:46:13,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:13,725 INFO L225 Difference]: With dead ends: 23 [2023-11-06 22:46:13,725 INFO L226 Difference]: Without dead ends: 14 [2023-11-06 22:46:13,729 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 [2023-11-06 22:46:13,737 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:13,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 17 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:13,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-06 22:46:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-06 22:46:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 13 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) [2023-11-06 22:46:13,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-06 22:46:13,777 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2023-11-06 22:46:13,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:13,777 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-06 22:46:13,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-06 22:46:13,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:46:13,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:13,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:46:13,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:46:13,780 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:13,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:13,781 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2023-11-06 22:46:13,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:13,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392452191] [2023-11-06 22:46:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:13,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:13,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:13,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392452191] [2023-11-06 22:46:13,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392452191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:13,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:13,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:46:13,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379622505] [2023-11-06 22:46:13,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:13,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:46:13,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:13,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:13,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:46:13,822 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:13,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:13,848 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-11-06 22:46:13,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:13,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 22:46:13,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:13,850 INFO L225 Difference]: With dead ends: 18 [2023-11-06 22:46:13,850 INFO L226 Difference]: Without dead ends: 17 [2023-11-06 22:46:13,850 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 [2023-11-06 22:46:13,852 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:13,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:13,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-06 22:46:13,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-06 22:46:13,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:13,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-06 22:46:13,857 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 5 [2023-11-06 22:46:13,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:13,858 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-06 22:46:13,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:13,858 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-06 22:46:13,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:46:13,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:13,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:46:13,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:46:13,859 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:13,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:13,860 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2023-11-06 22:46:13,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:13,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081091586] [2023-11-06 22:46:13,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:13,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:13,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:13,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081091586] [2023-11-06 22:46:13,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081091586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:13,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:13,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:46:13,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401177051] [2023-11-06 22:46:13,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:13,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:46:13,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:13,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:13,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:46:13,912 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:13,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:13,927 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-11-06 22:46:13,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:13,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 22:46:13,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:13,928 INFO L225 Difference]: With dead ends: 20 [2023-11-06 22:46:13,928 INFO L226 Difference]: Without dead ends: 19 [2023-11-06 22:46:13,929 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 [2023-11-06 22:46:13,930 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:13,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:13,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-06 22:46:13,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2023-11-06 22:46:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:13,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-11-06 22:46:13,937 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2023-11-06 22:46:13,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:13,937 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-11-06 22:46:13,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:13,938 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-11-06 22:46:13,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:46:13,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:13,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:13,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:46:13,940 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:13,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:13,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2023-11-06 22:46:13,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:13,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310949468] [2023-11-06 22:46:13,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:13,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:14,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:14,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310949468] [2023-11-06 22:46:14,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310949468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:14,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:14,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:46:14,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561526557] [2023-11-06 22:46:14,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:14,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:46:14,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:14,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:46:14,013 INFO L87 Difference]: Start difference. First operand 18 states and 18 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) [2023-11-06 22:46:14,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:14,033 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-11-06 22:46:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:14,034 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 [2023-11-06 22:46:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:14,035 INFO L225 Difference]: With dead ends: 18 [2023-11-06 22:46:14,035 INFO L226 Difference]: Without dead ends: 17 [2023-11-06 22:46:14,035 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 [2023-11-06 22:46:14,037 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:14,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:14,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-06 22:46:14,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-06 22:46:14,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-06 22:46:14,049 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2023-11-06 22:46:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:14,049 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-06 22:46:14,049 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) [2023-11-06 22:46:14,049 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-06 22:46:14,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:46:14,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:14,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:14,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:46:14,051 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:14,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:14,051 INFO L85 PathProgramCache]: Analyzing trace with hash 294943144, now seen corresponding path program 1 times [2023-11-06 22:46:14,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:14,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656414749] [2023-11-06 22:46:14,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:14,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:14,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:14,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656414749] [2023-11-06 22:46:14,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656414749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:14,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:14,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:46:14,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995334027] [2023-11-06 22:46:14,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:14,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:46:14,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:14,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:14,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:46:14,115 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:14,126 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-11-06 22:46:14,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:14,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 22:46:14,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:14,128 INFO L225 Difference]: With dead ends: 17 [2023-11-06 22:46:14,128 INFO L226 Difference]: Without dead ends: 16 [2023-11-06 22:46:14,129 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 [2023-11-06 22:46:14,130 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:14,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:14,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-06 22:46:14,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-06 22:46:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-11-06 22:46:14,136 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 8 [2023-11-06 22:46:14,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:14,137 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-11-06 22:46:14,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,137 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-11-06 22:46:14,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:46:14,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:14,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:14,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:46:14,139 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:14,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:14,140 INFO L85 PathProgramCache]: Analyzing trace with hash 553302925, now seen corresponding path program 1 times [2023-11-06 22:46:14,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:14,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883558357] [2023-11-06 22:46:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:14,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:14,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:14,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883558357] [2023-11-06 22:46:14,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883558357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:14,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:14,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:46:14,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470081588] [2023-11-06 22:46:14,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:14,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:46:14,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:14,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:14,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:46:14,176 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:14,185 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-11-06 22:46:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:14,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 22:46:14,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:14,186 INFO L225 Difference]: With dead ends: 16 [2023-11-06 22:46:14,186 INFO L226 Difference]: Without dead ends: 15 [2023-11-06 22:46:14,187 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 [2023-11-06 22:46:14,189 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:14,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:14,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-06 22:46:14,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-06 22:46:14,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-06 22:46:14,194 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2023-11-06 22:46:14,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:14,195 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-06 22:46:14,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,195 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-06 22:46:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 22:46:14,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:14,196 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:14,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:46:14,196 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:14,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:14,197 INFO L85 PathProgramCache]: Analyzing trace with hash -637002594, now seen corresponding path program 1 times [2023-11-06 22:46:14,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:14,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941833714] [2023-11-06 22:46:14,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:14,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:14,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:14,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941833714] [2023-11-06 22:46:14,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941833714] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:14,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653919725] [2023-11-06 22:46:14,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:14,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:14,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:14,298 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:14,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:46:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:14,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:46:14,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:14,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:14,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:14,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:14,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653919725] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:14,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:14,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 22:46:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143561375] [2023-11-06 22:46:14,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:14,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:46:14,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:46:14,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:14,453 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:14,482 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-11-06 22:46:14,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:46:14,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 12 [2023-11-06 22:46:14,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:14,484 INFO L225 Difference]: With dead ends: 38 [2023-11-06 22:46:14,485 INFO L226 Difference]: Without dead ends: 37 [2023-11-06 22:46:14,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:14,486 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:14,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 35 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:14,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-06 22:46:14,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2023-11-06 22:46:14,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.121212121212121) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2023-11-06 22:46:14,495 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 12 [2023-11-06 22:46:14,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:14,495 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2023-11-06 22:46:14,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,496 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2023-11-06 22:46:14,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:46:14,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:14,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:14,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:14,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:14,703 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:14,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1727756113, now seen corresponding path program 1 times [2023-11-06 22:46:14,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:14,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559307246] [2023-11-06 22:46:14,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:14,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:14,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:14,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559307246] [2023-11-06 22:46:14,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559307246] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:14,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686275513] [2023-11-06 22:46:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:14,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:14,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:14,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:14,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:46:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:14,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:46:14,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:14,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:14,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:14,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686275513] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:14,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:14,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 22:46:14,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896942436] [2023-11-06 22:46:14,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:14,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:46:14,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:14,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:46:14,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:14,959 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:14,984 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2023-11-06 22:46:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:46:14,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-06 22:46:14,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:14,986 INFO L225 Difference]: With dead ends: 37 [2023-11-06 22:46:14,986 INFO L226 Difference]: Without dead ends: 36 [2023-11-06 22:46:14,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:14,987 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 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 [2023-11-06 22:46:14,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:14,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-06 22:46:14,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-06 22:46:14,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 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) [2023-11-06 22:46:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2023-11-06 22:46:14,994 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 13 [2023-11-06 22:46:14,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:14,995 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2023-11-06 22:46:14,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:14,995 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2023-11-06 22:46:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-06 22:46:14,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:14,997 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1] [2023-11-06 22:46:15,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:15,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:15,202 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:15,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:15,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1634791159, now seen corresponding path program 2 times [2023-11-06 22:46:15,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:15,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541080055] [2023-11-06 22:46:15,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:15,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:15,374 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:15,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:15,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541080055] [2023-11-06 22:46:15,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541080055] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:15,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407242246] [2023-11-06 22:46:15,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:46:15,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:15,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:15,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:15,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:46:15,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:46:15,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:46:15,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:46:15,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:15,546 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:15,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:15,676 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:15,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407242246] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:15,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:15,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-06 22:46:15,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527453286] [2023-11-06 22:46:15,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:15,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:46:15,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:46:15,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:46:15,684 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:15,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:15,741 INFO L93 Difference]: Finished difference Result 83 states and 88 transitions. [2023-11-06 22:46:15,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:46:15,741 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 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 33 [2023-11-06 22:46:15,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:15,743 INFO L225 Difference]: With dead ends: 83 [2023-11-06 22:46:15,743 INFO L226 Difference]: Without dead ends: 82 [2023-11-06 22:46:15,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:46:15,745 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:15,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 69 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:15,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-06 22:46:15,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2023-11-06 22:46:15,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.0933333333333333) internal successors, (82), 76 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2023-11-06 22:46:15,757 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 33 [2023-11-06 22:46:15,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:15,757 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2023-11-06 22:46:15,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:15,758 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2023-11-06 22:46:15,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 22:46:15,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:15,759 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2023-11-06 22:46:15,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:15,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:15,965 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:15,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:15,966 INFO L85 PathProgramCache]: Analyzing trace with hash 861081670, now seen corresponding path program 2 times [2023-11-06 22:46:15,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:15,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827062130] [2023-11-06 22:46:15,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:15,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:16,076 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:16,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:16,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827062130] [2023-11-06 22:46:16,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827062130] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:16,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397350388] [2023-11-06 22:46:16,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:46:16,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:16,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:16,079 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:16,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:46:16,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:46:16,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:46:16,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:46:16,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:16,206 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:16,323 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:16,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397350388] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:16,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:16,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-06 22:46:16,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443249968] [2023-11-06 22:46:16,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:16,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:46:16,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:16,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:46:16,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:46:16,328 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:16,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:16,383 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2023-11-06 22:46:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:46:16,384 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-06 22:46:16,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:16,385 INFO L225 Difference]: With dead ends: 79 [2023-11-06 22:46:16,385 INFO L226 Difference]: Without dead ends: 78 [2023-11-06 22:46:16,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:46:16,386 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:16,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 67 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:16,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-06 22:46:16,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-06 22:46:16,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 1.0263157894736843) internal successors, (78), 77 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:16,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2023-11-06 22:46:16,400 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 34 [2023-11-06 22:46:16,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:16,400 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2023-11-06 22:46:16,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:16,400 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2023-11-06 22:46:16,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:46:16,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:16,403 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1] [2023-11-06 22:46:16,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:16,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:16,609 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:16,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:16,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1501766615, now seen corresponding path program 3 times [2023-11-06 22:46:16,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:16,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570757496] [2023-11-06 22:46:16,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:16,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:16,952 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:16,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:16,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570757496] [2023-11-06 22:46:16,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570757496] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:16,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114638017] [2023-11-06 22:46:16,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:46:16,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:16,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:16,955 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:16,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:46:17,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-06 22:46:17,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:46:17,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:46:17,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:17,164 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:17,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:17,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114638017] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:17,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:17,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-11-06 22:46:17,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383182160] [2023-11-06 22:46:17,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:17,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-06 22:46:17,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:17,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-06 22:46:17,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:46:17,542 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand has 24 states, 23 states have (on average 6.478260869565218) internal successors, (149), 24 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:17,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:17,650 INFO L93 Difference]: Finished difference Result 173 states and 184 transitions. [2023-11-06 22:46:17,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:46:17,651 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.478260869565218) internal successors, (149), 24 states have internal predecessors, (149), 0 states have call successors, (0), 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 75 [2023-11-06 22:46:17,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:17,654 INFO L225 Difference]: With dead ends: 173 [2023-11-06 22:46:17,655 INFO L226 Difference]: Without dead ends: 172 [2023-11-06 22:46:17,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:46:17,656 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:17,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 139 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:46:17,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-06 22:46:17,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 161. [2023-11-06 22:46:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 159 states have (on average 1.0817610062893082) internal successors, (172), 160 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 172 transitions. [2023-11-06 22:46:17,678 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 172 transitions. Word has length 75 [2023-11-06 22:46:17,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:17,679 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 172 transitions. [2023-11-06 22:46:17,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.478260869565218) internal successors, (149), 24 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:17,679 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 172 transitions. [2023-11-06 22:46:17,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:46:17,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:17,681 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1] [2023-11-06 22:46:17,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:17,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:17,887 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:17,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:17,887 INFO L85 PathProgramCache]: Analyzing trace with hash 689875238, now seen corresponding path program 3 times [2023-11-06 22:46:17,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:17,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213106013] [2023-11-06 22:46:17,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:17,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:18,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:18,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213106013] [2023-11-06 22:46:18,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213106013] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:18,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810836614] [2023-11-06 22:46:18,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:46:18,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:18,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:18,142 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:18,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:46:18,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-06 22:46:18,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:46:18,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:46:18,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:18,339 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:18,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:18,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810836614] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:18,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:18,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-11-06 22:46:18,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768203746] [2023-11-06 22:46:18,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:18,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-06 22:46:18,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:18,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-06 22:46:18,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:46:18,713 INFO L87 Difference]: Start difference. First operand 161 states and 172 transitions. Second operand has 24 states, 23 states have (on average 6.565217391304348) internal successors, (151), 24 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:18,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:18,822 INFO L93 Difference]: Finished difference Result 163 states and 174 transitions. [2023-11-06 22:46:18,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:46:18,823 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.565217391304348) internal successors, (151), 24 states have internal predecessors, (151), 0 states have call successors, (0), 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 76 [2023-11-06 22:46:18,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:18,825 INFO L225 Difference]: With dead ends: 163 [2023-11-06 22:46:18,825 INFO L226 Difference]: Without dead ends: 162 [2023-11-06 22:46:18,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:46:18,827 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:18,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 131 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:46:18,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-06 22:46:18,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-11-06 22:46:18,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.0125) internal successors, (162), 161 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2023-11-06 22:46:18,851 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 76 [2023-11-06 22:46:18,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:18,851 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2023-11-06 22:46:18,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.565217391304348) internal successors, (151), 24 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:18,852 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2023-11-06 22:46:18,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-06 22:46:18,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:18,855 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1] [2023-11-06 22:46:18,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-06 22:46:19,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:46:19,055 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:19,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:19,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1627044457, now seen corresponding path program 4 times [2023-11-06 22:46:19,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:19,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766206948] [2023-11-06 22:46:19,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:19,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:19,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:19,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766206948] [2023-11-06 22:46:19,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766206948] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:19,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489240621] [2023-11-06 22:46:19,926 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:46:19,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:19,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:19,928 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:19,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:46:20,024 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:46:20,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:46:20,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-06 22:46:20,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:20,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:20,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:21,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:21,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489240621] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:21,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:21,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-11-06 22:46:21,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548882502] [2023-11-06 22:46:21,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:21,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-06 22:46:21,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:21,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-06 22:46:21,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-06 22:46:21,382 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand has 48 states, 47 states have (on average 6.74468085106383) internal successors, (317), 48 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:21,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:21,608 INFO L93 Difference]: Finished difference Result 353 states and 376 transitions. [2023-11-06 22:46:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-06 22:46:21,609 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.74468085106383) internal successors, (317), 48 states have internal predecessors, (317), 0 states have call successors, (0), 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 159 [2023-11-06 22:46:21,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:21,614 INFO L225 Difference]: With dead ends: 353 [2023-11-06 22:46:21,614 INFO L226 Difference]: Without dead ends: 352 [2023-11-06 22:46:21,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-06 22:46:21,618 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 68 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:21,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 273 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:46:21,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-06 22:46:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 329. [2023-11-06 22:46:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 327 states have (on average 1.0764525993883791) internal successors, (352), 328 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 352 transitions. [2023-11-06 22:46:21,634 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 352 transitions. Word has length 159 [2023-11-06 22:46:21,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:21,637 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 352 transitions. [2023-11-06 22:46:21,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.74468085106383) internal successors, (317), 48 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:21,638 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 352 transitions. [2023-11-06 22:46:21,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-06 22:46:21,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:21,646 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1] [2023-11-06 22:46:21,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:21,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:21,852 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:21,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:21,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1101229338, now seen corresponding path program 4 times [2023-11-06 22:46:21,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:21,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359705239] [2023-11-06 22:46:21,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:21,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:22,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:22,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:22,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359705239] [2023-11-06 22:46:22,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359705239] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:22,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993367786] [2023-11-06 22:46:22,605 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:46:22,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:22,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:22,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:22,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:46:22,705 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:46:22,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:46:22,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-06 22:46:22,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:22,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:22,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:23,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993367786] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:23,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:23,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-11-06 22:46:23,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044803147] [2023-11-06 22:46:23,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:23,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-06 22:46:23,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:23,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-06 22:46:23,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-06 22:46:23,989 INFO L87 Difference]: Start difference. First operand 329 states and 352 transitions. Second operand has 48 states, 47 states have (on average 6.787234042553192) internal successors, (319), 48 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:24,205 INFO L93 Difference]: Finished difference Result 331 states and 354 transitions. [2023-11-06 22:46:24,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-06 22:46:24,206 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.787234042553192) internal successors, (319), 48 states have internal predecessors, (319), 0 states have call successors, (0), 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 160 [2023-11-06 22:46:24,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:24,208 INFO L225 Difference]: With dead ends: 331 [2023-11-06 22:46:24,209 INFO L226 Difference]: Without dead ends: 330 [2023-11-06 22:46:24,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-06 22:46:24,211 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:24,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 249 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:46:24,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-06 22:46:24,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2023-11-06 22:46:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 328 states have (on average 1.0060975609756098) internal successors, (330), 329 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:24,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 330 transitions. [2023-11-06 22:46:24,227 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 330 transitions. Word has length 160 [2023-11-06 22:46:24,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:24,228 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 330 transitions. [2023-11-06 22:46:24,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.787234042553192) internal successors, (319), 48 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:24,228 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 330 transitions. [2023-11-06 22:46:24,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-11-06 22:46:24,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:24,235 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 1, 1, 1] [2023-11-06 22:46:24,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:24,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:24,441 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:24,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:24,442 INFO L85 PathProgramCache]: Analyzing trace with hash 62363369, now seen corresponding path program 5 times [2023-11-06 22:46:24,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:24,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647696167] [2023-11-06 22:46:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:24,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:27,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:27,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647696167] [2023-11-06 22:46:27,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647696167] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:27,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625295744] [2023-11-06 22:46:27,233 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:46:27,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:27,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:27,234 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:27,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:46:27,438 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-06 22:46:27,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:46:27,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-06 22:46:27,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:27,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:31,382 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:31,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625295744] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:31,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:31,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-11-06 22:46:31,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090936831] [2023-11-06 22:46:31,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:31,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-06 22:46:31,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:31,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-06 22:46:31,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-06 22:46:31,393 INFO L87 Difference]: Start difference. First operand 330 states and 330 transitions. Second operand has 96 states, 95 states have (on average 6.873684210526315) internal successors, (653), 96 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:32,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:32,039 INFO L93 Difference]: Finished difference Result 713 states and 760 transitions. [2023-11-06 22:46:32,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-06 22:46:32,040 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.873684210526315) internal successors, (653), 96 states have internal predecessors, (653), 0 states have call successors, (0), 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 327 [2023-11-06 22:46:32,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:32,049 INFO L225 Difference]: With dead ends: 713 [2023-11-06 22:46:32,049 INFO L226 Difference]: Without dead ends: 712 [2023-11-06 22:46:32,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-06 22:46:32,057 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 148 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:32,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 538 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:46:32,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-11-06 22:46:32,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 665. [2023-11-06 22:46:32,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 663 states have (on average 1.0739064856711915) internal successors, (712), 664 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 712 transitions. [2023-11-06 22:46:32,085 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 712 transitions. Word has length 327 [2023-11-06 22:46:32,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:32,087 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 712 transitions. [2023-11-06 22:46:32,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.873684210526315) internal successors, (653), 96 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:32,088 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 712 transitions. [2023-11-06 22:46:32,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-11-06 22:46:32,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:32,094 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1] [2023-11-06 22:46:32,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-06 22:46:32,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-06 22:46:32,300 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:32,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:32,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1933264486, now seen corresponding path program 5 times [2023-11-06 22:46:32,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:32,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674418299] [2023-11-06 22:46:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:32,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:34,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:34,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674418299] [2023-11-06 22:46:34,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674418299] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:34,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696550344] [2023-11-06 22:46:34,866 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:46:34,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:34,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:34,869 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:34,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:46:35,068 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-06 22:46:35,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:46:35,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-06 22:46:35,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:35,566 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:35,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:39,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:39,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696550344] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:39,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:39,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-11-06 22:46:39,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081463883] [2023-11-06 22:46:39,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:39,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-06 22:46:39,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:39,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-06 22:46:39,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-06 22:46:39,181 INFO L87 Difference]: Start difference. First operand 665 states and 712 transitions. Second operand has 96 states, 95 states have (on average 6.894736842105263) internal successors, (655), 96 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:39,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:39,671 INFO L93 Difference]: Finished difference Result 667 states and 714 transitions. [2023-11-06 22:46:39,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-06 22:46:39,672 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.894736842105263) internal successors, (655), 96 states have internal predecessors, (655), 0 states have call successors, (0), 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 328 [2023-11-06 22:46:39,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:39,679 INFO L225 Difference]: With dead ends: 667 [2023-11-06 22:46:39,679 INFO L226 Difference]: Without dead ends: 666 [2023-11-06 22:46:39,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-06 22:46:39,684 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:39,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 487 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:46:39,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2023-11-06 22:46:39,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2023-11-06 22:46:39,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 664 states have (on average 1.0030120481927711) internal successors, (666), 665 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:39,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 666 transitions. [2023-11-06 22:46:39,731 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 666 transitions. Word has length 328 [2023-11-06 22:46:39,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:39,731 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 666 transitions. [2023-11-06 22:46:39,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.894736842105263) internal successors, (655), 96 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:39,732 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 666 transitions. [2023-11-06 22:46:39,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-11-06 22:46:39,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:39,746 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 1, 1, 1] [2023-11-06 22:46:39,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:39,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-06 22:46:39,952 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:46:39,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:39,953 INFO L85 PathProgramCache]: Analyzing trace with hash 636866537, now seen corresponding path program 6 times [2023-11-06 22:46:39,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:39,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289784851] [2023-11-06 22:46:39,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:39,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:49,440 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:49,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:49,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289784851] [2023-11-06 22:46:49,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289784851] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:49,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189500486] [2023-11-06 22:46:49,441 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-06 22:46:49,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:49,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:49,442 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:49,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:46:49,849 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-11-06 22:46:49,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:46:49,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-06 22:46:49,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:50,771 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:50,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:47:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:47:02,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189500486] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:47:02,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:47:02,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-11-06 22:47:02,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695756699] [2023-11-06 22:47:02,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:47:02,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-11-06 22:47:02,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:47:02,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-11-06 22:47:02,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-06 22:47:02,880 INFO L87 Difference]: Start difference. First operand 666 states and 666 transitions. Second operand has 192 states, 191 states have (on average 6.93717277486911) internal successors, (1325), 192 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:05,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:47:05,437 INFO L93 Difference]: Finished difference Result 1433 states and 1528 transitions. [2023-11-06 22:47:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-11-06 22:47:05,438 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.93717277486911) internal successors, (1325), 192 states have internal predecessors, (1325), 0 states have call successors, (0), 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 663 [2023-11-06 22:47:05,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:47:05,447 INFO L225 Difference]: With dead ends: 1433 [2023-11-06 22:47:05,447 INFO L226 Difference]: Without dead ends: 1432 [2023-11-06 22:47:05,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1420 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-06 22:47:05,454 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 385 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:47:05,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1064 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:47:05,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2023-11-06 22:47:05,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1337. [2023-11-06 22:47:05,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1335 states have (on average 1.0726591760299626) internal successors, (1432), 1336 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:05,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1432 transitions. [2023-11-06 22:47:05,515 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1432 transitions. Word has length 663 [2023-11-06 22:47:05,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:47:05,517 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1432 transitions. [2023-11-06 22:47:05,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.93717277486911) internal successors, (1325), 192 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:05,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1432 transitions. [2023-11-06 22:47:05,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2023-11-06 22:47:05,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:47:05,538 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1, 1] [2023-11-06 22:47:05,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:47:05,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-06 22:47:05,744 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:47:05,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:47:05,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1731973786, now seen corresponding path program 6 times [2023-11-06 22:47:05,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:47:05,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239024478] [2023-11-06 22:47:05,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:47:05,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:47:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:47:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:47:14,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:47:14,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239024478] [2023-11-06 22:47:14,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239024478] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:47:14,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418730390] [2023-11-06 22:47:14,049 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-06 22:47:14,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:47:14,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:47:14,051 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:47:14,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:47:14,494 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-11-06 22:47:14,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:47:14,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-06 22:47:14,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:47:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:47:15,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:47:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:47:27,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418730390] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:47:27,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:47:27,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-11-06 22:47:27,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941894664] [2023-11-06 22:47:27,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:47:27,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-11-06 22:47:27,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:47:27,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-11-06 22:47:27,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-06 22:47:27,916 INFO L87 Difference]: Start difference. First operand 1337 states and 1432 transitions. Second operand has 192 states, 191 states have (on average 6.947643979057592) internal successors, (1327), 192 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:29,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:47:29,963 INFO L93 Difference]: Finished difference Result 1339 states and 1434 transitions. [2023-11-06 22:47:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-11-06 22:47:29,965 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.947643979057592) internal successors, (1327), 192 states have internal predecessors, (1327), 0 states have call successors, (0), 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 664 [2023-11-06 22:47:29,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:47:29,973 INFO L225 Difference]: With dead ends: 1339 [2023-11-06 22:47:29,974 INFO L226 Difference]: Without dead ends: 1338 [2023-11-06 22:47:29,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1422 GetRequests, 1232 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-06 22:47:29,979 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:47:29,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 967 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:47:29,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2023-11-06 22:47:30,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1338. [2023-11-06 22:47:30,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1336 states have (on average 1.001497005988024) internal successors, (1338), 1337 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:30,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1338 transitions. [2023-11-06 22:47:30,038 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1338 transitions. Word has length 664 [2023-11-06 22:47:30,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:47:30,040 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 1338 transitions. [2023-11-06 22:47:30,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.947643979057592) internal successors, (1327), 192 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:47:30,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1338 transitions. [2023-11-06 22:47:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1336 [2023-11-06 22:47:30,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:47:30,058 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 1, 1, 1] [2023-11-06 22:47:30,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-06 22:47:30,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-06 22:47:30,264 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:47:30,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:47:30,265 INFO L85 PathProgramCache]: Analyzing trace with hash -880524823, now seen corresponding path program 7 times [2023-11-06 22:47:30,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:47:30,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964324650] [2023-11-06 22:47:30,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:47:30,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:47:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:08,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:48:08,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964324650] [2023-11-06 22:48:08,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964324650] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:48:08,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940010215] [2023-11-06 22:48:08,889 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-06 22:48:08,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:48:08,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:08,893 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:48:08,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:48:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:09,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 2482 conjuncts, 192 conjunts are in the unsatisfiable core [2023-11-06 22:48:09,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:10,978 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:10,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:48:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:58,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940010215] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:48:58,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:48:58,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-11-06 22:48:58,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148637632] [2023-11-06 22:48:58,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:48:58,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-11-06 22:48:58,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:48:58,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-11-06 22:48:58,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-11-06 22:48:58,043 INFO L87 Difference]: Start difference. First operand 1338 states and 1338 transitions. Second operand has 384 states, 383 states have (on average 6.968668407310705) internal successors, (2669), 384 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:15,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:49:15,700 INFO L93 Difference]: Finished difference Result 2873 states and 3064 transitions. [2023-11-06 22:49:15,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-11-06 22:49:15,709 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.968668407310705) internal successors, (2669), 384 states have internal predecessors, (2669), 0 states have call successors, (0), 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 1335 [2023-11-06 22:49:15,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:49:15,723 INFO L225 Difference]: With dead ends: 2873 [2023-11-06 22:49:15,724 INFO L226 Difference]: Without dead ends: 2872 [2023-11-06 22:49:15,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2860 GetRequests, 2478 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.6s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-11-06 22:49:15,732 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 864 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:49:15,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 2125 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 22:49:15,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2023-11-06 22:49:15,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2681. [2023-11-06 22:49:15,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2679 states have (on average 1.0720418066442703) internal successors, (2872), 2680 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:15,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 2872 transitions. [2023-11-06 22:49:15,817 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 2872 transitions. Word has length 1335 [2023-11-06 22:49:15,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:49:15,819 INFO L495 AbstractCegarLoop]: Abstraction has 2681 states and 2872 transitions. [2023-11-06 22:49:15,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.968668407310705) internal successors, (2669), 384 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:49:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 2872 transitions. [2023-11-06 22:49:15,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2023-11-06 22:49:15,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:49:15,838 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 190, 190, 1, 1, 1] [2023-11-06 22:49:15,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:49:16,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:16,039 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:49:16,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:49:16,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1526465690, now seen corresponding path program 7 times [2023-11-06 22:49:16,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:49:16,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326575404] [2023-11-06 22:49:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:49:16,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:49:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:55,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:49:55,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326575404] [2023-11-06 22:49:55,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326575404] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:49:55,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32839918] [2023-11-06 22:49:55,076 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-06 22:49:55,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:49:55,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:49:55,080 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:49:55,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd7e84d-e550-4b42-91c8-b9237c450435/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:49:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:49:55,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 192 conjunts are in the unsatisfiable core [2023-11-06 22:49:55,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:49:57,147 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:49:57,148 INFO L327 TraceCheckSpWp]: Computing backward predicates...