./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array13_alloca.i --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_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/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_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-15/array13_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/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_c96366c4-79bc-497a-93f7-cbca8b279b02/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 bcb4bc0abad87560c498c61782d3ccf631503b41762d0db8553a6c831cbdcaff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:59:32,054 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:59:32,185 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 22:59:32,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:59:32,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:59:32,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:59:32,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:59:32,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:59:32,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:59:32,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:59:32,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:59:32,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:59:32,244 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:59:32,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:59:32,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:59:32,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:59:32,246 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:59:32,247 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:59:32,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:59:32,248 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:59:32,248 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:59:32,249 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:59:32,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:59:32,250 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:59:32,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:59:32,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:59:32,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:59:32,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:59:32,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:59:32,254 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:59:32,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:59:32,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:59:32,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:59:32,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:59:32,256 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:59:32,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:59:32,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:59:32,257 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:59:32,257 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_c96366c4-79bc-497a-93f7-cbca8b279b02/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcb4bc0abad87560c498c61782d3ccf631503b41762d0db8553a6c831cbdcaff [2023-11-06 22:59:32,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:59:32,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:59:32,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:59:32,607 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:59:32,608 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:59:32,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-15/array13_alloca.i [2023-11-06 22:59:35,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:59:36,049 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:59:36,050 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/sv-benchmarks/c/termination-15/array13_alloca.i [2023-11-06 22:59:36,066 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/data/65fe5234e/d4b1e8a012864a0da3e398c73f139ecb/FLAG703d5b8cd [2023-11-06 22:59:36,085 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/data/65fe5234e/d4b1e8a012864a0da3e398c73f139ecb [2023-11-06 22:59:36,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:59:36,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:59:36,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:36,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:59:36,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:59:36,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a489a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36, skipping insertion in model container [2023-11-06 22:59:36,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,171 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:59:36,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:36,536 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:59:36,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:36,614 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:59:36,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36 WrapperNode [2023-11-06 22:59:36,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:36,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:36,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:59:36,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:59:36,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,658 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-11-06 22:59:36,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:36,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:59:36,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:59:36,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:59:36,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:59:36,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:59:36,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:59:36,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:59:36,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (1/1) ... [2023-11-06 22:59:36,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:59:36,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:36,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:36,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:59:36,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:59:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:59:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:59:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:59:36,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:59:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:59:36,902 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:59:36,905 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:59:37,140 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:59:37,147 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:59:37,148 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:59:37,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:37 BoogieIcfgContainer [2023-11-06 22:59:37,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:59:37,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:59:37,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:59:37,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:59:37,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:59:36" (1/3) ... [2023-11-06 22:59:37,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5166930a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:37, skipping insertion in model container [2023-11-06 22:59:37,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:36" (2/3) ... [2023-11-06 22:59:37,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5166930a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:37, skipping insertion in model container [2023-11-06 22:59:37,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:37" (3/3) ... [2023-11-06 22:59:37,162 INFO L112 eAbstractionObserver]: Analyzing ICFG array13_alloca.i [2023-11-06 22:59:37,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:59:37,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:59:37,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:59:37,249 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;@6759c012, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:59:37,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-06 22:59:37,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 20 states have (on average 1.7) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:59:37,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:37,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:37,260 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 22:59:37,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:37,266 INFO L85 PathProgramCache]: Analyzing trace with hash -592037013, now seen corresponding path program 1 times [2023-11-06 22:59:37,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:37,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789178376] [2023-11-06 22:59:37,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:37,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:37,560 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 22:59:37,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:37,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789178376] [2023-11-06 22:59:37,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789178376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:37,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:37,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:59:37,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681762108] [2023-11-06 22:59:37,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:37,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:37,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:37,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:37,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:37,605 INFO L87 Difference]: Start difference. First operand has 27 states, 20 states have (on average 1.7) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:37,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:37,716 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2023-11-06 22:59:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:37,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 22:59:37,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:37,729 INFO L225 Difference]: With dead ends: 62 [2023-11-06 22:59:37,729 INFO L226 Difference]: Without dead ends: 39 [2023-11-06 22:59:37,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:37,737 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 19 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:37,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 73 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:37,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-06 22:59:37,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 28. [2023-11-06 22:59:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2023-11-06 22:59:37,822 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 9 [2023-11-06 22:59:37,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:37,823 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2023-11-06 22:59:37,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-06 22:59:37,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:59:37,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:37,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:37,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:59:37,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:37,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:37,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1174750793, now seen corresponding path program 1 times [2023-11-06 22:59:37,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:37,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403008497] [2023-11-06 22:59:37,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:37,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:37,933 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 22:59:37,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:37,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403008497] [2023-11-06 22:59:37,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403008497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:37,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:37,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:37,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349608710] [2023-11-06 22:59:37,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:37,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:37,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:37,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:37,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:37,940 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:37,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:37,984 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2023-11-06 22:59:37,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:37,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-06 22:59:37,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:37,986 INFO L225 Difference]: With dead ends: 39 [2023-11-06 22:59:37,986 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 22:59:37,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:37,989 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 32 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:37,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 37 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:37,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 22:59:37,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 22:59:37,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.5) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 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 22:59:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2023-11-06 22:59:37,995 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 10 [2023-11-06 22:59:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:37,996 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2023-11-06 22:59:37,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-06 22:59:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:59:37,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:37,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:37,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:59:37,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:37,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:37,998 INFO L85 PathProgramCache]: Analyzing trace with hash 220033369, now seen corresponding path program 1 times [2023-11-06 22:59:37,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:37,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967608847] [2023-11-06 22:59:37,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:37,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:38,216 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 22:59:38,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:38,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967608847] [2023-11-06 22:59:38,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967608847] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:38,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911264108] [2023-11-06 22:59:38,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:38,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:38,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:38,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:38,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:59:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:38,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:59:38,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:38,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:38,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:38,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911264108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:38,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:59:38,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2023-11-06 22:59:38,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370095633] [2023-11-06 22:59:38,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:38,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:38,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:38,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:38,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:59:38,453 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 22:59:38,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:38,518 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2023-11-06 22:59:38,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:38,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-06 22:59:38,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:38,521 INFO L225 Difference]: With dead ends: 65 [2023-11-06 22:59:38,521 INFO L226 Difference]: Without dead ends: 47 [2023-11-06 22:59:38,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:59:38,523 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:38,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 68 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:38,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-06 22:59:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2023-11-06 22:59:38,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.4) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2023-11-06 22:59:38,531 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 14 [2023-11-06 22:59:38,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:38,531 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2023-11-06 22:59:38,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 22:59:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2023-11-06 22:59:38,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:59:38,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:38,533 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:38,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:38,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:38,743 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:38,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:38,744 INFO L85 PathProgramCache]: Analyzing trace with hash 478198807, now seen corresponding path program 1 times [2023-11-06 22:59:38,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:38,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595866229] [2023-11-06 22:59:38,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:38,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:38,913 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 22:59:38,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:38,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595866229] [2023-11-06 22:59:38,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595866229] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:38,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355738151] [2023-11-06 22:59:38,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:38,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:38,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:38,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:38,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:59:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:38,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:59:38,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:39,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:39,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:39,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355738151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:39,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:59:39,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 22:59:39,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433912235] [2023-11-06 22:59:39,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:39,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:39,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:39,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:59:39,054 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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 22:59:39,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:39,119 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2023-11-06 22:59:39,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:39,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-06 22:59:39,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:39,122 INFO L225 Difference]: With dead ends: 36 [2023-11-06 22:59:39,122 INFO L226 Difference]: Without dead ends: 35 [2023-11-06 22:59:39,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:59:39,131 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 23 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:39,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 48 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:39,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-06 22:59:39,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-06 22:59:39,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:39,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2023-11-06 22:59:39,145 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 14 [2023-11-06 22:59:39,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:39,146 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2023-11-06 22:59:39,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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 22:59:39,146 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2023-11-06 22:59:39,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 22:59:39,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:39,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:39,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:39,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:39,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:39,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:39,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1770372727, now seen corresponding path program 1 times [2023-11-06 22:59:39,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:39,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881920072] [2023-11-06 22:59:39,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:39,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:59:39,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:39,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881920072] [2023-11-06 22:59:39,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881920072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:39,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:39,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:59:39,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347968900] [2023-11-06 22:59:39,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:39,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:39,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:39,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:39,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:39,475 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 22:59:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:39,513 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2023-11-06 22:59:39,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:39,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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) Word has length 15 [2023-11-06 22:59:39,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:39,516 INFO L225 Difference]: With dead ends: 45 [2023-11-06 22:59:39,516 INFO L226 Difference]: Without dead ends: 43 [2023-11-06 22:59:39,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:39,518 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:39,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 58 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:39,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-06 22:59:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2023-11-06 22:59:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 38 states have internal predecessors, (46), 0 states have call successors, (0), 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 22:59:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2023-11-06 22:59:39,558 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 15 [2023-11-06 22:59:39,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:39,558 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2023-11-06 22:59:39,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 22:59:39,559 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2023-11-06 22:59:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 22:59:39,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:39,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:39,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:59:39,560 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:39,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:39,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1770372535, now seen corresponding path program 1 times [2023-11-06 22:59:39,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:39,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401431044] [2023-11-06 22:59:39,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:39,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:59:39,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:39,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401431044] [2023-11-06 22:59:39,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401431044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:39,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:39,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:59:39,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111677594] [2023-11-06 22:59:39,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:39,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:39,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:39,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:39,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:39,652 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 22:59:39,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:39,685 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2023-11-06 22:59:39,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:39,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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) Word has length 15 [2023-11-06 22:59:39,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:39,687 INFO L225 Difference]: With dead ends: 43 [2023-11-06 22:59:39,687 INFO L226 Difference]: Without dead ends: 41 [2023-11-06 22:59:39,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:39,688 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:39,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 58 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:39,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-06 22:59:39,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-06 22:59:39,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 40 states have internal predecessors, (48), 0 states have call successors, (0), 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 22:59:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2023-11-06 22:59:39,694 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 15 [2023-11-06 22:59:39,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:39,694 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2023-11-06 22:59:39,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 22:59:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2023-11-06 22:59:39,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 22:59:39,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:39,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:39,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:59:39,696 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 22:59:39,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:39,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1939261192, now seen corresponding path program 1 times [2023-11-06 22:59:39,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:39,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669923298] [2023-11-06 22:59:39,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:39,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:39,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:39,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669923298] [2023-11-06 22:59:39,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669923298] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:39,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545312337] [2023-11-06 22:59:39,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:39,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:39,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:39,797 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:39,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:59:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:39,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:59:39,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:39,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:39,980 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:39,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545312337] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:39,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:59:39,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 22:59:39,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398870915] [2023-11-06 22:59:39,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:39,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:59:39,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:39,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:59:39,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:59:39,983 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:40,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:40,100 INFO L93 Difference]: Finished difference Result 108 states and 129 transitions. [2023-11-06 22:59:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:59:40,100 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-06 22:59:40,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:40,104 INFO L225 Difference]: With dead ends: 108 [2023-11-06 22:59:40,104 INFO L226 Difference]: Without dead ends: 107 [2023-11-06 22:59:40,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:59:40,106 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 105 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:40,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 145 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:40,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-06 22:59:40,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 56. [2023-11-06 22:59:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 55 states have internal predecessors, (69), 0 states have call successors, (0), 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 22:59:40,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2023-11-06 22:59:40,131 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 15 [2023-11-06 22:59:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:40,132 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2023-11-06 22:59:40,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2023-11-06 22:59:40,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:59:40,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:40,134 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:40,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:40,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:40,345 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 22:59:40,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:40,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1696806660, now seen corresponding path program 1 times [2023-11-06 22:59:40,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:40,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687540055] [2023-11-06 22:59:40,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:40,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:40,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:59:40,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:40,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687540055] [2023-11-06 22:59:40,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687540055] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:40,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177653822] [2023-11-06 22:59:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:40,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:40,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:40,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:40,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:59:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:40,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:59:40,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:59:40,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:40,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177653822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:40,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:59:40,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 22:59:40,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140600010] [2023-11-06 22:59:40,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:40,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:59:40,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:40,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:59:40,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:40,525 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:40,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:40,561 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2023-11-06 22:59:40,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:40,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-06 22:59:40,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:40,563 INFO L225 Difference]: With dead ends: 67 [2023-11-06 22:59:40,563 INFO L226 Difference]: Without dead ends: 54 [2023-11-06 22:59:40,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:59:40,564 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:40,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 76 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:40,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-06 22:59:40,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-06 22:59:40,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 49 states have (on average 1.346938775510204) internal successors, (66), 53 states have internal predecessors, (66), 0 states have call successors, (0), 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 22:59:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2023-11-06 22:59:40,585 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 19 [2023-11-06 22:59:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:40,586 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2023-11-06 22:59:40,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2023-11-06 22:59:40,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:59:40,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:40,588 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:40,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:59:40,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:40,794 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:40,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:40,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1874301438, now seen corresponding path program 1 times [2023-11-06 22:59:40,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:40,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643800529] [2023-11-06 22:59:40,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:40,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:59:40,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:40,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643800529] [2023-11-06 22:59:40,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643800529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:40,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:40,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:59:40,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173986204] [2023-11-06 22:59:40,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:40,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:40,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:40,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:40,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:40,839 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:40,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:40,862 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2023-11-06 22:59:40,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:40,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-06 22:59:40,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:40,863 INFO L225 Difference]: With dead ends: 54 [2023-11-06 22:59:40,863 INFO L226 Difference]: Without dead ends: 53 [2023-11-06 22:59:40,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:40,864 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 9 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 50 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 22:59:40,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 50 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-06 22:59:40,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-06 22:59:40,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 52 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 22:59:40,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2023-11-06 22:59:40,870 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 19 [2023-11-06 22:59:40,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:40,871 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2023-11-06 22:59:40,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:40,871 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2023-11-06 22:59:40,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:59:40,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:40,872 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:40,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:59:40,872 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:40,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:40,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1874301630, now seen corresponding path program 1 times [2023-11-06 22:59:40,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:40,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138141552] [2023-11-06 22:59:40,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:40,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:59:40,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:40,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138141552] [2023-11-06 22:59:40,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138141552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:40,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:40,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:59:40,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100701595] [2023-11-06 22:59:40,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:40,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:40,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:40,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:40,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:40,916 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:40,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:40,942 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2023-11-06 22:59:40,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:40,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-06 22:59:40,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:40,943 INFO L225 Difference]: With dead ends: 54 [2023-11-06 22:59:40,944 INFO L226 Difference]: Without dead ends: 53 [2023-11-06 22:59:40,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:40,945 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 8 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:40,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 48 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:40,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-06 22:59:40,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2023-11-06 22:59:40,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 51 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2023-11-06 22:59:40,957 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 19 [2023-11-06 22:59:40,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:40,957 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2023-11-06 22:59:40,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:40,958 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2023-11-06 22:59:40,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-06 22:59:40,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:40,959 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:40,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:59:40,960 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:40,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:40,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2026197483, now seen corresponding path program 1 times [2023-11-06 22:59:40,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:40,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070106604] [2023-11-06 22:59:40,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:40,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:59:41,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:41,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070106604] [2023-11-06 22:59:41,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070106604] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:41,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981296309] [2023-11-06 22:59:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:41,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:41,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:41,082 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:41,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:59:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:41,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:59:41,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:59:41,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:41,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981296309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:41,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:59:41,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2023-11-06 22:59:41,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775160790] [2023-11-06 22:59:41,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:41,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:41,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:41,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:41,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:59:41,262 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:41,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:41,314 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2023-11-06 22:59:41,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:41,314 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-06 22:59:41,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:41,316 INFO L225 Difference]: With dead ends: 66 [2023-11-06 22:59:41,316 INFO L226 Difference]: Without dead ends: 44 [2023-11-06 22:59:41,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:59:41,318 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:41,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 59 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:41,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-06 22:59:41,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-06 22:59:41,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 0 states have call successors, (0), 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 22:59:41,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2023-11-06 22:59:41,325 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 20 [2023-11-06 22:59:41,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:41,325 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2023-11-06 22:59:41,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:41,326 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2023-11-06 22:59:41,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-06 22:59:41,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:41,329 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:41,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-06 22:59:41,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:41,535 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:41,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:41,535 INFO L85 PathProgramCache]: Analyzing trace with hash 274625107, now seen corresponding path program 1 times [2023-11-06 22:59:41,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:41,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257887198] [2023-11-06 22:59:41,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:59:41,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:41,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257887198] [2023-11-06 22:59:41,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257887198] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:41,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106495923] [2023-11-06 22:59:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:41,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:41,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:41,627 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:41,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:59:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:41,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:59:41,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:41,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:41,838 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:41,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:41,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106495923] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:41,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:59:41,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 16 [2023-11-06 22:59:41,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362531279] [2023-11-06 22:59:41,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:41,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:59:41,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:41,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:59:41,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:59:41,980 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:42,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:42,213 INFO L93 Difference]: Finished difference Result 65 states and 78 transitions. [2023-11-06 22:59:42,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:59:42,214 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-06 22:59:42,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:42,214 INFO L225 Difference]: With dead ends: 65 [2023-11-06 22:59:42,214 INFO L226 Difference]: Without dead ends: 51 [2023-11-06 22:59:42,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2023-11-06 22:59:42,216 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 31 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:42,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 89 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:42,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-06 22:59:42,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2023-11-06 22:59:42,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 45 states have (on average 1.288888888888889) internal successors, (58), 47 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:42,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2023-11-06 22:59:42,221 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 20 [2023-11-06 22:59:42,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:42,221 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2023-11-06 22:59:42,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:42,221 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2023-11-06 22:59:42,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-06 22:59:42,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:42,222 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:42,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:42,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:59:42,429 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:42,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:42,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1664835887, now seen corresponding path program 1 times [2023-11-06 22:59:42,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:42,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788695591] [2023-11-06 22:59:42,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:42,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:42,507 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-06 22:59:42,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:42,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788695591] [2023-11-06 22:59:42,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788695591] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:42,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001605504] [2023-11-06 22:59:42,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:42,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:42,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:42,509 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:42,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:59:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:42,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:59:42,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-06 22:59:42,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:42,659 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-06 22:59:42,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001605504] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:42,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:59:42,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 22:59:42,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218532200] [2023-11-06 22:59:42,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:42,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:59:42,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:59:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:59:42,661 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:42,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:42,768 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2023-11-06 22:59:42,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:59:42,769 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-06 22:59:42,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:42,769 INFO L225 Difference]: With dead ends: 69 [2023-11-06 22:59:42,770 INFO L226 Difference]: Without dead ends: 68 [2023-11-06 22:59:42,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:59:42,772 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 20 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:42,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 102 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:42,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-06 22:59:42,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60. [2023-11-06 22:59:42,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 57 states have (on average 1.280701754385965) internal successors, (73), 59 states have internal predecessors, (73), 0 states have call successors, (0), 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 22:59:42,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 73 transitions. [2023-11-06 22:59:42,781 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 73 transitions. Word has length 25 [2023-11-06 22:59:42,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:42,783 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 73 transitions. [2023-11-06 22:59:42,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:42,783 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 73 transitions. [2023-11-06 22:59:42,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-06 22:59:42,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:42,787 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:42,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:42,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:59:42,993 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:42,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:42,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1600521108, now seen corresponding path program 1 times [2023-11-06 22:59:42,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:42,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39251938] [2023-11-06 22:59:42,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:42,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-06 22:59:43,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:43,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39251938] [2023-11-06 22:59:43,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39251938] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:43,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927337126] [2023-11-06 22:59:43,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:43,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:43,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:43,101 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:43,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:59:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:43,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:59:43,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:59:43,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:43,270 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:59:43,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927337126] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:43,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:59:43,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-11-06 22:59:43,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474632598] [2023-11-06 22:59:43,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:43,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:59:43,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:43,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:59:43,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:59:43,272 INFO L87 Difference]: Start difference. First operand 60 states and 73 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 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 22:59:43,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:43,391 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2023-11-06 22:59:43,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:59:43,391 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-11-06 22:59:43,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:43,392 INFO L225 Difference]: With dead ends: 81 [2023-11-06 22:59:43,392 INFO L226 Difference]: Without dead ends: 79 [2023-11-06 22:59:43,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:59:43,393 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:43,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 83 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:43,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-06 22:59:43,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2023-11-06 22:59:43,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 62 states have internal predecessors, (77), 0 states have call successors, (0), 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 22:59:43,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2023-11-06 22:59:43,399 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 29 [2023-11-06 22:59:43,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:43,400 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2023-11-06 22:59:43,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 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 22:59:43,400 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2023-11-06 22:59:43,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-06 22:59:43,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:43,401 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:43,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:43,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:59:43,607 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 22:59:43,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:43,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1250973554, now seen corresponding path program 2 times [2023-11-06 22:59:43,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:43,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421854194] [2023-11-06 22:59:43,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:43,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:43,840 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:43,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:43,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421854194] [2023-11-06 22:59:43,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421854194] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:43,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065391298] [2023-11-06 22:59:43,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:59:43,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:43,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:43,843 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:43,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:59:43,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:59:43,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:59:43,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:59:43,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:43,999 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-06 22:59:43,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-06 22:59:44,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065391298] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:44,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:59:44,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2023-11-06 22:59:44,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738919735] [2023-11-06 22:59:44,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:44,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 22:59:44,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:44,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 22:59:44,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:59:44,060 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 15 states, 14 states have (on average 3.142857142857143) internal successors, (44), 15 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:44,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:44,288 INFO L93 Difference]: Finished difference Result 197 states and 239 transitions. [2023-11-06 22:59:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:59:44,289 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.142857142857143) internal successors, (44), 15 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-06 22:59:44,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:44,290 INFO L225 Difference]: With dead ends: 197 [2023-11-06 22:59:44,290 INFO L226 Difference]: Without dead ends: 196 [2023-11-06 22:59:44,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2023-11-06 22:59:44,292 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 178 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:44,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 89 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:44,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-06 22:59:44,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 48. [2023-11-06 22:59:44,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 47 states have internal predecessors, (57), 0 states have call successors, (0), 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 22:59:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2023-11-06 22:59:44,324 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 30 [2023-11-06 22:59:44,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:44,325 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2023-11-06 22:59:44,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.142857142857143) internal successors, (44), 15 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:44,325 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2023-11-06 22:59:44,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-06 22:59:44,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:44,326 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:44,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:44,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:44,532 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:59:44,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:44,532 INFO L85 PathProgramCache]: Analyzing trace with hash 520998506, now seen corresponding path program 2 times [2023-11-06 22:59:44,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:44,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307843739] [2023-11-06 22:59:44,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:44,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:59:44,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:44,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307843739] [2023-11-06 22:59:44,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307843739] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:44,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017298792] [2023-11-06 22:59:44,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:59:44,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:44,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:44,773 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:44,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:59:44,849 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:59:44,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:59:44,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:59:44,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-06 22:59:44,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:45,019 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-06 22:59:45,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017298792] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:45,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:59:45,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2023-11-06 22:59:45,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457239339] [2023-11-06 22:59:45,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:45,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:59:45,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:45,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:59:45,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:59:45,022 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:45,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:45,345 INFO L93 Difference]: Finished difference Result 93 states and 112 transitions. [2023-11-06 22:59:45,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:59:45,346 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2023-11-06 22:59:45,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:45,346 INFO L225 Difference]: With dead ends: 93 [2023-11-06 22:59:45,346 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:59:45,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2023-11-06 22:59:45,348 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 53 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:45,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 65 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:45,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:59:45,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:59:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:45,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:59:45,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2023-11-06 22:59:45,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:45,350 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:59:45,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:59:45,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:59:45,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-06 22:59:45,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-06 22:59:45,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-06 22:59:45,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-06 22:59:45,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-06 22:59:45,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-06 22:59:45,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:45,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:45,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:59:46,983 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 379) no Hoare annotation was computed. [2023-11-06 22:59:46,983 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2023-11-06 22:59:46,983 INFO L895 garLoopResultBuilder]: At program point L378-2(lines 377 383) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length~0#1|))) (or (and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 2147483647) .cse1) (and .cse0 (= |ULTIMATE.start_main_~length~0#1| 1)) (and (<= (+ |ULTIMATE.start_main_~j~0#1| 1) 0) .cse0 .cse1))) [2023-11-06 22:59:46,983 INFO L899 garLoopResultBuilder]: For program point L370-2(lines 370 375) no Hoare annotation was computed. [2023-11-06 22:59:46,984 INFO L899 garLoopResultBuilder]: For program point L370-3(line 370) no Hoare annotation was computed. [2023-11-06 22:59:46,984 INFO L899 garLoopResultBuilder]: For program point L370-4(line 370) no Hoare annotation was computed. [2023-11-06 22:59:46,984 INFO L895 garLoopResultBuilder]: At program point L370-5(lines 370 375) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~length~0#1| 2147483647)) (.cse1 (<= 1 |ULTIMATE.start_main_~length~0#1|))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse1) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0) .cse1))) [2023-11-06 22:59:46,984 INFO L899 garLoopResultBuilder]: For program point L370-6(lines 370 375) no Hoare annotation was computed. [2023-11-06 22:59:46,984 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 364 385) the Hoare annotation is: true [2023-11-06 22:59:46,984 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:59:46,984 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 370) no Hoare annotation was computed. [2023-11-06 22:59:46,984 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 381) no Hoare annotation was computed. [2023-11-06 22:59:46,985 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:59:46,985 INFO L899 garLoopResultBuilder]: For program point L379(line 379) no Hoare annotation was computed. [2023-11-06 22:59:46,985 INFO L899 garLoopResultBuilder]: For program point L379-1(line 379) no Hoare annotation was computed. [2023-11-06 22:59:46,985 INFO L899 garLoopResultBuilder]: For program point L367(line 367) no Hoare annotation was computed. [2023-11-06 22:59:46,985 INFO L899 garLoopResultBuilder]: For program point L367-2(line 367) no Hoare annotation was computed. [2023-11-06 22:59:46,985 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 370) no Hoare annotation was computed. [2023-11-06 22:59:46,985 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:59:46,985 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 381) no Hoare annotation was computed. [2023-11-06 22:59:46,985 INFO L899 garLoopResultBuilder]: For program point L372(lines 372 374) no Hoare annotation was computed. [2023-11-06 22:59:46,985 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:59:46,986 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 379) no Hoare annotation was computed. [2023-11-06 22:59:46,986 INFO L899 garLoopResultBuilder]: For program point L381(line 381) no Hoare annotation was computed. [2023-11-06 22:59:46,986 INFO L899 garLoopResultBuilder]: For program point L381-1(line 381) no Hoare annotation was computed. [2023-11-06 22:59:46,986 INFO L899 garLoopResultBuilder]: For program point L377-2(lines 377 383) no Hoare annotation was computed. [2023-11-06 22:59:46,986 INFO L899 garLoopResultBuilder]: For program point L369(line 369) no Hoare annotation was computed. [2023-11-06 22:59:46,989 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:46,992 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:59:47,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:59:47 BoogieIcfgContainer [2023-11-06 22:59:47,009 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:59:47,009 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:59:47,009 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:59:47,010 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:59:47,010 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:37" (3/4) ... [2023-11-06 22:59:47,013 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:59:47,023 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-06 22:59:47,023 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:59:47,024 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-06 22:59:47,024 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:59:47,099 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:59:47,099 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:59:47,099 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:59:47,101 INFO L158 Benchmark]: Toolchain (without parser) took 11004.29ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 122.5MB in the beginning and 63.4MB in the end (delta: 59.1MB). Peak memory consumption was 116.8MB. Max. memory is 16.1GB. [2023-11-06 22:59:47,101 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 155.2MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:47,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.26ms. Allocated memory is still 155.2MB. Free memory was 122.1MB in the beginning and 104.4MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:59:47,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.53ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 102.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:59:47,102 INFO L158 Benchmark]: Boogie Preprocessor took 26.98ms. Allocated memory is still 155.2MB. Free memory was 102.8MB in the beginning and 101.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:47,103 INFO L158 Benchmark]: RCFGBuilder took 463.71ms. Allocated memory is still 155.2MB. Free memory was 101.6MB in the beginning and 90.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:59:47,104 INFO L158 Benchmark]: TraceAbstraction took 9855.32ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 89.3MB in the beginning and 67.6MB in the end (delta: 21.7MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. [2023-11-06 22:59:47,105 INFO L158 Benchmark]: Witness Printer took 90.31ms. Allocated memory is still 209.7MB. Free memory was 67.6MB in the beginning and 63.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:59:47,110 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 155.2MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.26ms. Allocated memory is still 155.2MB. Free memory was 122.1MB in the beginning and 104.4MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.53ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 102.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.98ms. Allocated memory is still 155.2MB. Free memory was 102.8MB in the beginning and 101.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 463.71ms. Allocated memory is still 155.2MB. Free memory was 101.6MB in the beginning and 90.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9855.32ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 89.3MB in the beginning and 67.6MB in the end (delta: 21.7MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. * Witness Printer took 90.31ms. Allocated memory is still 209.7MB. Free memory was 67.6MB in the beginning and 63.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 370]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 370]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 379]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 379]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 381]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 381]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 535 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 535 mSDsluCounter, 1148 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 862 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 874 IncrementalHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 286 mSDtfsCounter, 874 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 508 GetRequests, 332 SyntacticMatches, 9 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=14, InterpolantAutomatonStates: 127, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 253 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 27 NumberOfFragments, 55 HoareAnnotationTreeSize, 3 FomulaSimplifications, 10777 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1884 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 533 NumberOfCodeBlocks, 487 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 657 ConstructedInterpolants, 0 QuantifiedInterpolants, 1551 SizeOfPredicates, 28 NumberOfNonLiveVariables, 683 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 32 InterpolantComputations, 10 PerfectInterpolantSequences, 234/408 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 364]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 370]: Loop Invariant Derived loop invariant: ((((length <= 2147483647) && (1 <= i)) && (1 <= length)) || (((length <= 2147483647) && (i == 0)) && (1 <= length))) - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: ((((((length <= 2147483647) && (1 <= i)) && (j <= 2147483647)) && (1 <= length)) || ((1 <= i) && (length == 1))) || ((((j + 1) <= 0) && (1 <= i)) && (1 <= length))) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:59:47,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c96366c4-79bc-497a-93f7-cbca8b279b02/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE