./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-lopstr16/flag_loopdep_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/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_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-lopstr16/flag_loopdep_simple.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e1c46549da470f14361a9b2a5fb79d079bbffb4006138f4fef05b9b152f9be7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:35:12,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:35:12,636 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:35:12,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:35:12,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:35:12,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:35:12,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:35:12,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:35:12,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:35:12,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:35:12,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:35:12,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:35:12,686 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:35:12,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:35:12,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:35:12,689 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:35:12,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:35:12,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:35:12,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:35:12,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:35:12,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:35:12,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:35:12,692 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:35:12,692 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:35:12,693 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:35:12,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:35:12,693 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:35:12,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:35:12,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:35:12,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:35:12,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:35:12,697 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:35:12,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:35:12,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:35:12,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:35:12,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:35:12,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:35:12,698 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:35:12,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:35:12,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:35:12,699 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:35:12,700 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_83842e6a-56e1-4309-886e-5c774371a483/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e1c46549da470f14361a9b2a5fb79d079bbffb4006138f4fef05b9b152f9be7 [2023-11-06 22:35:12,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:35:13,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:35:13,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:35:13,018 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:35:13,018 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:35:13,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-lopstr16/flag_loopdep_simple.i [2023-11-06 22:35:16,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:35:16,325 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:35:16,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/sv-benchmarks/c/array-lopstr16/flag_loopdep_simple.i [2023-11-06 22:35:16,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/data/7494e639c/a7262c9823444b56b5e5be9a6ff5d4cf/FLAG4d72fa5ba [2023-11-06 22:35:16,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/data/7494e639c/a7262c9823444b56b5e5be9a6ff5d4cf [2023-11-06 22:35:16,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:35:16,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:35:16,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:35:16,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:35:16,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:35:16,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60320b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16, skipping insertion in model container [2023-11-06 22:35:16,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,391 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:35:16,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:35:16,558 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:35:16,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:35:16,599 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:35:16,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16 WrapperNode [2023-11-06 22:35:16,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:35:16,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:35:16,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:35:16,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:35:16,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,637 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-11-06 22:35:16,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:35:16,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:35:16,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:35:16,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:35:16,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:35:16,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:35:16,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:35:16,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:35:16,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (1/1) ... [2023-11-06 22:35:16,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:35:16,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:16,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:35:16,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:35:16,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:35:16,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:35:16,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:35:16,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:35:16,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:35:16,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:35:16,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:35:16,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:35:16,846 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:35:16,848 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:35:17,055 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:35:17,062 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:35:17,062 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:35:17,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:35:17 BoogieIcfgContainer [2023-11-06 22:35:17,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:35:17,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:35:17,068 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:35:17,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:35:17,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:35:16" (1/3) ... [2023-11-06 22:35:17,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef77502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:35:17, skipping insertion in model container [2023-11-06 22:35:17,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:16" (2/3) ... [2023-11-06 22:35:17,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef77502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:35:17, skipping insertion in model container [2023-11-06 22:35:17,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:35:17" (3/3) ... [2023-11-06 22:35:17,075 INFO L112 eAbstractionObserver]: Analyzing ICFG flag_loopdep_simple.i [2023-11-06 22:35:17,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:35:17,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:35:17,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:35:17,147 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;@34bd3021, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:35:17,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-06 22:35:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 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 22:35:17,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:35:17,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:17,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:35:17,158 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 22:35:17,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:17,164 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2023-11-06 22:35:17,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:17,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004327373] [2023-11-06 22:35:17,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:17,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:17,459 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 22:35:17,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:17,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004327373] [2023-11-06 22:35:17,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004327373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:17,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:17,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:35:17,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587416266] [2023-11-06 22:35:17,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:17,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:35:17,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:17,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:35:17,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:35:17,500 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:17,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:17,607 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2023-11-06 22:35:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:35:17,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 22:35:17,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:17,619 INFO L225 Difference]: With dead ends: 64 [2023-11-06 22:35:17,619 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 22:35:17,622 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 22:35:17,629 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:17,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 88 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:35:17,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 22:35:17,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2023-11-06 22:35:17,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states 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 22:35:17,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-11-06 22:35:17,672 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 5 [2023-11-06 22:35:17,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:17,673 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-11-06 22:35:17,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:17,673 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-11-06 22:35:17,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:35:17,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:17,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:17,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:35:17,675 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 22:35:17,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:17,677 INFO L85 PathProgramCache]: Analyzing trace with hash 215923509, now seen corresponding path program 1 times [2023-11-06 22:35:17,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:17,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504753576] [2023-11-06 22:35:17,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:17,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:17,793 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 22:35:17,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:17,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504753576] [2023-11-06 22:35:17,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504753576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:17,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:17,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:35:17,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905595584] [2023-11-06 22:35:17,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:17,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:35:17,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:17,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:35:17,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:35:17,797 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:17,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:17,875 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2023-11-06 22:35:17,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:35:17,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 22:35:17,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:17,878 INFO L225 Difference]: With dead ends: 56 [2023-11-06 22:35:17,878 INFO L226 Difference]: Without dead ends: 44 [2023-11-06 22:35:17,883 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 22:35:17,888 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 13 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:17,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 62 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:17,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-06 22:35:17,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2023-11-06 22:35:17,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.4137931034482758) 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 22:35:17,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2023-11-06 22:35:17,904 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 8 [2023-11-06 22:35:17,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:17,905 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2023-11-06 22:35:17,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:17,906 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2023-11-06 22:35:17,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:35:17,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:17,908 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:35:17,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:35:17,909 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 22:35:17,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:17,910 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2023-11-06 22:35:17,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:17,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027536491] [2023-11-06 22:35:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:17,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:18,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:35:18,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:18,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027536491] [2023-11-06 22:35:18,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027536491] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:18,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011473663] [2023-11-06 22:35:18,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:18,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:18,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:18,052 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:18,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:35:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:18,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:35:18,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:35:18,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:35:18,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011473663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:18,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:35:18,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 22:35:18,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556873599] [2023-11-06 22:35:18,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:18,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:35:18,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:18,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:35:18,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:35:18,267 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 22:35:18,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:18,338 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2023-11-06 22:35:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:35:18,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 22:35:18,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:18,339 INFO L225 Difference]: With dead ends: 36 [2023-11-06 22:35:18,340 INFO L226 Difference]: Without dead ends: 35 [2023-11-06 22:35:18,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:35:18,341 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:18,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 87 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:18,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-06 22:35:18,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2023-11-06 22:35:18,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 33 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:18,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2023-11-06 22:35:18,348 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 9 [2023-11-06 22:35:18,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:18,348 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2023-11-06 22:35:18,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 22:35:18,349 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2023-11-06 22:35:18,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:35:18,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:18,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:35:18,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:35:18,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-06 22:35:18,556 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:35:18,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:18,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2023-11-06 22:35:18,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:18,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347348803] [2023-11-06 22:35:18,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:18,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:18,740 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 22:35:18,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:18,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347348803] [2023-11-06 22:35:18,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347348803] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:18,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386038778] [2023-11-06 22:35:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:18,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:18,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:18,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:18,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:35:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:18,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:35:18,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:18,843 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 22:35:18,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:35:18,919 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 22:35:18,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386038778] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:35:18,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:35:18,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 22:35:18,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125087892] [2023-11-06 22:35:18,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:35:18,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:35:18,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:18,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:35:18,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:35:18,928 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states 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 22:35:19,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:19,030 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2023-11-06 22:35:19,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:35:19,030 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 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 22:35:19,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:19,032 INFO L225 Difference]: With dead ends: 51 [2023-11-06 22:35:19,033 INFO L226 Difference]: Without dead ends: 50 [2023-11-06 22:35:19,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 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 22:35:19,034 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 30 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:19,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 110 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:19,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-06 22:35:19,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2023-11-06 22:35:19,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 45 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 22:35:19,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2023-11-06 22:35:19,042 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 10 [2023-11-06 22:35:19,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:19,043 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2023-11-06 22:35:19,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states 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 22:35:19,043 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2023-11-06 22:35:19,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:35:19,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:19,044 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:19,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-06 22:35:19,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:19,250 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 22:35:19,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:19,250 INFO L85 PathProgramCache]: Analyzing trace with hash -965302825, now seen corresponding path program 1 times [2023-11-06 22:35:19,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:19,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940133873] [2023-11-06 22:35:19,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:19,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:19,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:35:19,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:19,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940133873] [2023-11-06 22:35:19,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940133873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:19,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:19,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:35:19,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842814895] [2023-11-06 22:35:19,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:19,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:35:19,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:19,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:35:19,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:35:19,321 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:19,341 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2023-11-06 22:35:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:35:19,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-06 22:35:19,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:19,343 INFO L225 Difference]: With dead ends: 69 [2023-11-06 22:35:19,344 INFO L226 Difference]: Without dead ends: 46 [2023-11-06 22:35:19,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:35:19,346 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:19,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 50 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:19,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-06 22:35:19,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-06 22:35:19,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 45 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 22:35:19,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2023-11-06 22:35:19,368 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 13 [2023-11-06 22:35:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:19,368 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2023-11-06 22:35:19,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:19,369 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2023-11-06 22:35:19,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-06 22:35:19,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:19,370 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:19,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:35:19,373 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:35:19,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:19,375 INFO L85 PathProgramCache]: Analyzing trace with hash -64521645, now seen corresponding path program 1 times [2023-11-06 22:35:19,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:19,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20652919] [2023-11-06 22:35:19,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:19,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:35:19,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:19,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20652919] [2023-11-06 22:35:19,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20652919] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:19,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42313395] [2023-11-06 22:35:19,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:19,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:19,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:19,479 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:19,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:35:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:19,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:35:19,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:19,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:35:19,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:35:19,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:35:19,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42313395] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:35:19,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:35:19,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 22:35:19,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321228097] [2023-11-06 22:35:19,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:35:19,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:35:19,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:19,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:35:19,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:35:19,678 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:19,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:19,730 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2023-11-06 22:35:19,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:35:19,731 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-06 22:35:19,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:19,732 INFO L225 Difference]: With dead ends: 69 [2023-11-06 22:35:19,732 INFO L226 Difference]: Without dead ends: 46 [2023-11-06 22:35:19,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:35:19,733 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:19,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 92 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:19,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-06 22:35:19,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-06 22:35:19,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 45 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:19,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2023-11-06 22:35:19,739 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 17 [2023-11-06 22:35:19,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:19,740 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2023-11-06 22:35:19,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:19,740 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2023-11-06 22:35:19,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 22:35:19,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:19,741 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1] [2023-11-06 22:35:19,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:35:19,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:19,947 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 22:35:19,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:19,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1326689066, now seen corresponding path program 2 times [2023-11-06 22:35:19,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:19,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581873934] [2023-11-06 22:35:19,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:19,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:20,213 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:35:20,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:20,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581873934] [2023-11-06 22:35:20,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581873934] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:20,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104593118] [2023-11-06 22:35:20,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:35:20,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:20,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:20,215 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:20,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:35:20,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:35:20,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:35:20,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:35:20,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:20,358 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-06 22:35:20,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:35:20,428 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-06 22:35:20,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104593118] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:35:20,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:35:20,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2023-11-06 22:35:20,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60066237] [2023-11-06 22:35:20,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:35:20,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-06 22:35:20,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:20,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-06 22:35:20,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:35:20,430 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:20,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:20,675 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2023-11-06 22:35:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:35:20,676 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-06 22:35:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:20,677 INFO L225 Difference]: With dead ends: 54 [2023-11-06 22:35:20,677 INFO L226 Difference]: Without dead ends: 53 [2023-11-06 22:35:20,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2023-11-06 22:35:20,678 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:20,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 170 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:35:20,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-06 22:35:20,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 38. [2023-11-06 22:35:20,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 22:35:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2023-11-06 22:35:20,684 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 22 [2023-11-06 22:35:20,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:20,684 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2023-11-06 22:35:20,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:20,685 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-11-06 22:35:20,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-06 22:35:20,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:20,686 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:20,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:35:20,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:20,891 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 22:35:20,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:20,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1897641653, now seen corresponding path program 2 times [2023-11-06 22:35:20,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:20,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686766004] [2023-11-06 22:35:20,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:20,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:21,039 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:35:21,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:21,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686766004] [2023-11-06 22:35:21,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686766004] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:21,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914289533] [2023-11-06 22:35:21,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:35:21,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:21,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:21,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:21,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:35:21,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:35:21,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:35:21,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:35:21,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:35:21,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:35:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:35:21,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914289533] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:35:21,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:35:21,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2023-11-06 22:35:21,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851063058] [2023-11-06 22:35:21,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:35:21,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-06 22:35:21,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:21,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-06 22:35:21,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2023-11-06 22:35:21,391 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:21,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:21,548 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2023-11-06 22:35:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:35:21,549 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-06 22:35:21,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:21,549 INFO L225 Difference]: With dead ends: 77 [2023-11-06 22:35:21,549 INFO L226 Difference]: Without dead ends: 54 [2023-11-06 22:35:21,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=236, Invalid=576, Unknown=0, NotChecked=0, Total=812 [2023-11-06 22:35:21,551 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:21,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 193 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:35:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-06 22:35:21,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-06 22:35:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.18) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:21,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2023-11-06 22:35:21,558 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 25 [2023-11-06 22:35:21,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:21,559 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2023-11-06 22:35:21,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:21,559 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2023-11-06 22:35:21,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-06 22:35:21,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:21,561 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:21,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:35:21,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:21,766 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 22:35:21,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash -919699653, now seen corresponding path program 3 times [2023-11-06 22:35:21,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:21,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228997842] [2023-11-06 22:35:21,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:21,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:35:22,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:22,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228997842] [2023-11-06 22:35:22,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228997842] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:22,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104848386] [2023-11-06 22:35:22,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:35:22,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:22,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:22,235 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:22,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:35:22,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:35:22,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:35:22,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:35:22,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:22,393 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-06 22:35:22,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:35:22,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104848386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:22,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:35:22,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 20 [2023-11-06 22:35:22,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104688903] [2023-11-06 22:35:22,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:22,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:35:22,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:22,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:35:22,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:35:22,397 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:22,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:22,441 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2023-11-06 22:35:22,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:35:22,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-11-06 22:35:22,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:22,442 INFO L225 Difference]: With dead ends: 63 [2023-11-06 22:35:22,443 INFO L226 Difference]: Without dead ends: 62 [2023-11-06 22:35:22,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:35:22,444 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:22,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 47 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:22,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-06 22:35:22,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 53. [2023-11-06 22:35:22,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 50 states have (on average 1.16) internal successors, (58), 52 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 22:35:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2023-11-06 22:35:22,452 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 41 [2023-11-06 22:35:22,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:22,453 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2023-11-06 22:35:22,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2023-11-06 22:35:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-06 22:35:22,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:22,455 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:22,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:35:22,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:22,660 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:35:22,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:22,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1554081898, now seen corresponding path program 1 times [2023-11-06 22:35:22,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:22,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293685900] [2023-11-06 22:35:22,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:22,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-11-06 22:35:22,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:22,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293685900] [2023-11-06 22:35:22,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293685900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:22,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:22,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:35:22,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666100271] [2023-11-06 22:35:22,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:22,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:35:22,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:22,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:35:22,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:35:22,727 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:22,756 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2023-11-06 22:35:22,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:35:22,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-11-06 22:35:22,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:22,758 INFO L225 Difference]: With dead ends: 54 [2023-11-06 22:35:22,758 INFO L226 Difference]: Without dead ends: 53 [2023-11-06 22:35:22,759 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 22:35:22,759 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:22,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 43 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:22,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-06 22:35:22,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2023-11-06 22:35:22,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 47 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:22,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2023-11-06 22:35:22,775 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 42 [2023-11-06 22:35:22,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:22,775 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2023-11-06 22:35:22,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2023-11-06 22:35:22,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-06 22:35:22,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:22,779 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:22,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:35:22,779 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:35:22,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:22,780 INFO L85 PathProgramCache]: Analyzing trace with hash 884386972, now seen corresponding path program 1 times [2023-11-06 22:35:22,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:22,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123577780] [2023-11-06 22:35:22,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:22,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-06 22:35:22,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:22,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123577780] [2023-11-06 22:35:22,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123577780] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:22,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026260561] [2023-11-06 22:35:22,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:22,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:22,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:22,864 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:22,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:35:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:22,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:35:22,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-11-06 22:35:23,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:35:23,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026260561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:23,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:35:23,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-06 22:35:23,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210679601] [2023-11-06 22:35:23,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:23,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:35:23,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:23,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:35:23,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:35:23,013 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 22:35:23,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:23,020 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2023-11-06 22:35:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:35:23,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 43 [2023-11-06 22:35:23,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:23,022 INFO L225 Difference]: With dead ends: 70 [2023-11-06 22:35:23,022 INFO L226 Difference]: Without dead ends: 61 [2023-11-06 22:35:23,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:35:23,024 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:23,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 44 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:23,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-06 22:35:23,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2023-11-06 22:35:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 58 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2023-11-06 22:35:23,034 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 43 [2023-11-06 22:35:23,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:23,035 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2023-11-06 22:35:23,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 22:35:23,036 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2023-11-06 22:35:23,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-06 22:35:23,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:23,039 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:23,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:35:23,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:23,245 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:35:23,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:23,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1277413982, now seen corresponding path program 1 times [2023-11-06 22:35:23,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:23,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415327046] [2023-11-06 22:35:23,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:23,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-06 22:35:23,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:23,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415327046] [2023-11-06 22:35:23,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415327046] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:23,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13123755] [2023-11-06 22:35:23,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:23,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:23,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:23,340 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:23,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:35:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:23,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-06 22:35:23,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:35:23,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:35:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:35:24,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13123755] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:35:24,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:35:24,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 35 [2023-11-06 22:35:24,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851249846] [2023-11-06 22:35:24,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:35:24,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-06 22:35:24,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:24,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-06 22:35:24,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=911, Unknown=0, NotChecked=0, Total=1190 [2023-11-06 22:35:24,211 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand has 35 states, 35 states have (on average 2.4571428571428573) internal successors, (86), 35 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 22:35:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:24,686 INFO L93 Difference]: Finished difference Result 150 states and 181 transitions. [2023-11-06 22:35:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-06 22:35:24,687 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.4571428571428573) internal successors, (86), 35 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-11-06 22:35:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:24,688 INFO L225 Difference]: With dead ends: 150 [2023-11-06 22:35:24,688 INFO L226 Difference]: Without dead ends: 122 [2023-11-06 22:35:24,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=635, Invalid=1815, Unknown=0, NotChecked=0, Total=2450 [2023-11-06 22:35:24,690 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 85 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:24,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 148 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:35:24,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-06 22:35:24,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 100. [2023-11-06 22:35:24,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 98 states have (on average 1.1122448979591837) internal successors, (109), 99 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 22:35:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 109 transitions. [2023-11-06 22:35:24,703 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 109 transitions. Word has length 43 [2023-11-06 22:35:24,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:24,704 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 109 transitions. [2023-11-06 22:35:24,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.4571428571428573) internal successors, (86), 35 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 22:35:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 109 transitions. [2023-11-06 22:35:24,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-06 22:35:24,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:24,708 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:24,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:35:24,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:24,915 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:35:24,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:24,915 INFO L85 PathProgramCache]: Analyzing trace with hash -162161836, now seen corresponding path program 1 times [2023-11-06 22:35:24,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:24,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103127857] [2023-11-06 22:35:24,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:24,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2023-11-06 22:35:25,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:25,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103127857] [2023-11-06 22:35:25,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103127857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:25,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:25,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:35:25,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893668960] [2023-11-06 22:35:25,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:25,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:35:25,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:25,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:35:25,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:35:25,075 INFO L87 Difference]: Start difference. First operand 100 states and 109 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 22:35:25,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:25,111 INFO L93 Difference]: Finished difference Result 114 states and 126 transitions. [2023-11-06 22:35:25,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:35:25,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 80 [2023-11-06 22:35:25,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:25,112 INFO L225 Difference]: With dead ends: 114 [2023-11-06 22:35:25,113 INFO L226 Difference]: Without dead ends: 112 [2023-11-06 22:35:25,113 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 22:35:25,114 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:25,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 50 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:25,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-06 22:35:25,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2023-11-06 22:35:25,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 110 states have (on average 1.1090909090909091) internal successors, (122), 111 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 22:35:25,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2023-11-06 22:35:25,124 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 80 [2023-11-06 22:35:25,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:25,124 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2023-11-06 22:35:25,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 22:35:25,125 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2023-11-06 22:35:25,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-06 22:35:25,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:25,126 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:25,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:35:25,126 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:35:25,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:25,127 INFO L85 PathProgramCache]: Analyzing trace with hash -882728561, now seen corresponding path program 1 times [2023-11-06 22:35:25,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:25,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889572538] [2023-11-06 22:35:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:25,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:35:26,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:26,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889572538] [2023-11-06 22:35:26,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889572538] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:26,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948638598] [2023-11-06 22:35:26,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:26,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:26,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:26,228 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:26,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:35:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:26,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-06 22:35:26,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:27,417 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:35:27,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:35:28,733 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:35:28,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948638598] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:35:28,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:35:28,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 95 [2023-11-06 22:35:28,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088222197] [2023-11-06 22:35:28,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:35:28,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2023-11-06 22:35:28,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:28,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2023-11-06 22:35:28,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2109, Invalid=6821, Unknown=0, NotChecked=0, Total=8930 [2023-11-06 22:35:28,742 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand has 95 states, 95 states have (on average 2.126315789473684) internal successors, (202), 95 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 22:35:29,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:29,982 INFO L93 Difference]: Finished difference Result 225 states and 260 transitions. [2023-11-06 22:35:29,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-06 22:35:29,983 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.126315789473684) internal successors, (202), 95 states have internal predecessors, (202), 0 states have call successors, (0), 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 85 [2023-11-06 22:35:29,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:29,984 INFO L225 Difference]: With dead ends: 225 [2023-11-06 22:35:29,984 INFO L226 Difference]: Without dead ends: 176 [2023-11-06 22:35:29,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6114 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=3836, Invalid=11664, Unknown=0, NotChecked=0, Total=15500 [2023-11-06 22:35:29,991 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 198 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:29,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 175 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:35:29,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-06 22:35:30,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2023-11-06 22:35:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 174 states have (on average 1.0689655172413792) internal successors, (186), 175 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 22:35:30,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2023-11-06 22:35:30,004 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 85 [2023-11-06 22:35:30,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:30,005 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2023-11-06 22:35:30,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.126315789473684) internal successors, (202), 95 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 22:35:30,005 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2023-11-06 22:35:30,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-06 22:35:30,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:30,007 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:30,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:35:30,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:35:30,213 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:35:30,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:30,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1228151119, now seen corresponding path program 2 times [2023-11-06 22:35:30,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:30,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136216755] [2023-11-06 22:35:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:30,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:35:33,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:33,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136216755] [2023-11-06 22:35:33,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136216755] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:33,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967478639] [2023-11-06 22:35:33,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:35:33,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:33,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:33,734 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:33,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:35:33,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:35:33,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:35:33,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-06 22:35:33,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:35:36,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:35:41,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:35:41,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967478639] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:35:41,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:35:41,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 191 [2023-11-06 22:35:41,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399071309] [2023-11-06 22:35:41,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:35:41,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2023-11-06 22:35:41,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:41,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2023-11-06 22:35:41,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8317, Invalid=27973, Unknown=0, NotChecked=0, Total=36290 [2023-11-06 22:35:41,502 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand has 191 states, 191 states have (on average 2.06282722513089) internal successors, (394), 191 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 22:35:45,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:45,591 INFO L93 Difference]: Finished difference Result 353 states and 404 transitions. [2023-11-06 22:35:45,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-11-06 22:35:45,592 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 191 states have (on average 2.06282722513089) internal successors, (394), 191 states have internal predecessors, (394), 0 states have call successors, (0), 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 149 [2023-11-06 22:35:45,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:45,594 INFO L225 Difference]: With dead ends: 353 [2023-11-06 22:35:45,594 INFO L226 Difference]: Without dead ends: 304 [2023-11-06 22:35:45,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26034 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=15356, Invalid=48400, Unknown=0, NotChecked=0, Total=63756 [2023-11-06 22:35:45,601 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 708 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:45,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 175 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:35:45,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-11-06 22:35:45,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2023-11-06 22:35:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 302 states have (on average 1.0397350993377483) internal successors, (314), 303 states have internal predecessors, (314), 0 states have call successors, (0), 0 states 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 22:35:45,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 314 transitions. [2023-11-06 22:35:45,624 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 314 transitions. Word has length 149 [2023-11-06 22:35:45,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:45,625 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 314 transitions. [2023-11-06 22:35:45,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 191 states have (on average 2.06282722513089) internal successors, (394), 191 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 22:35:45,625 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 314 transitions. [2023-11-06 22:35:45,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-11-06 22:35:45,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:45,629 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:45,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:35:45,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-06 22:35:45,835 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:35:45,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:45,836 INFO L85 PathProgramCache]: Analyzing trace with hash 234686671, now seen corresponding path program 3 times [2023-11-06 22:35:45,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:45,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320650207] [2023-11-06 22:35:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:45,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:35:58,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:58,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320650207] [2023-11-06 22:35:58,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320650207] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:35:58,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784942437] [2023-11-06 22:35:58,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:35:58,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:35:58,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:58,056 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:35:58,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:35:58,222 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:35:58,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:35:58,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:35:58,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:35:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7882 trivial. 0 not checked. [2023-11-06 22:35:58,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:35:58,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784942437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:58,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:35:58,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [129] total 132 [2023-11-06 22:35:58,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800277662] [2023-11-06 22:35:58,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:58,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:35:58,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:58,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:35:58,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4231, Invalid=13061, Unknown=0, NotChecked=0, Total=17292 [2023-11-06 22:35:58,452 INFO L87 Difference]: Start difference. First operand 304 states and 314 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:58,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:58,567 INFO L93 Difference]: Finished difference Result 304 states and 314 transitions. [2023-11-06 22:35:58,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:35:58,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 277 [2023-11-06 22:35:58,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:58,571 INFO L225 Difference]: With dead ends: 304 [2023-11-06 22:35:58,571 INFO L226 Difference]: Without dead ends: 303 [2023-11-06 22:35:58,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4281 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=4236, Invalid=13320, Unknown=0, NotChecked=0, Total=17556 [2023-11-06 22:35:58,573 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:58,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 58 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:58,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-06 22:35:58,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2023-11-06 22:35:58,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.033112582781457) internal successors, (312), 302 states have internal predecessors, (312), 0 states have call successors, (0), 0 states 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 22:35:58,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 312 transitions. [2023-11-06 22:35:58,596 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 312 transitions. Word has length 277 [2023-11-06 22:35:58,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:58,597 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 312 transitions. [2023-11-06 22:35:58,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 312 transitions. [2023-11-06 22:35:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-11-06 22:35:58,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:35:58,602 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:58,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:35:58,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-06 22:35:58,807 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:35:58,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:58,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1314647683, now seen corresponding path program 1 times [2023-11-06 22:35:58,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:58,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801100290] [2023-11-06 22:35:58,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:58,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7883 trivial. 0 not checked. [2023-11-06 22:35:59,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:59,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801100290] [2023-11-06 22:35:59,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801100290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:59,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:59,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:35:59,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698182060] [2023-11-06 22:35:59,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:59,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:35:59,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:59,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:35:59,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:35:59,043 INFO L87 Difference]: Start difference. First operand 303 states and 312 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:35:59,079 INFO L93 Difference]: Finished difference Result 303 states and 312 transitions. [2023-11-06 22:35:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:35:59,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2023-11-06 22:35:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:35:59,081 INFO L225 Difference]: With dead ends: 303 [2023-11-06 22:35:59,081 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:35:59,084 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 22:35:59,085 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:35:59,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 39 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:35:59,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:35:59,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:35:59,087 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 22:35:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:35:59,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 278 [2023-11-06 22:35:59,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:35:59,087 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:35:59,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:35:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:35:59,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:35:59,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-06 22:35:59,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-06 22:35:59,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-06 22:35:59,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-06 22:35:59,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-06 22:35:59,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-06 22:35:59,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:35:59,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:36:01,136 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-06 22:36:01,137 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 26) no Hoare annotation was computed. [2023-11-06 22:36:01,137 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 27 47) the Hoare annotation is: true [2023-11-06 22:36:01,137 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 39) no Hoare annotation was computed. [2023-11-06 22:36:01,137 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:36:01,137 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-11-06 22:36:01,137 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-06 22:36:01,137 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:36:01,137 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-06 22:36:01,137 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-06 22:36:01,138 INFO L899 garLoopResultBuilder]: For program point L41-2(lines 41 45) no Hoare annotation was computed. [2023-11-06 22:36:01,138 INFO L899 garLoopResultBuilder]: For program point L41-3(line 41) no Hoare annotation was computed. [2023-11-06 22:36:01,138 INFO L899 garLoopResultBuilder]: For program point L41-4(line 41) no Hoare annotation was computed. [2023-11-06 22:36:01,138 INFO L895 garLoopResultBuilder]: At program point L41-5(lines 41 45) the Hoare annotation is: (< 0 (+ 2147483649 |ULTIMATE.start_main_~i~1#1|)) [2023-11-06 22:36:01,138 INFO L899 garLoopResultBuilder]: For program point L41-6(lines 41 45) no Hoare annotation was computed. [2023-11-06 22:36:01,138 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-11-06 22:36:01,138 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:36:01,138 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-06 22:36:01,138 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-06 22:36:01,138 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-11-06 22:36:01,139 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2023-11-06 22:36:01,139 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:36:01,139 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 34 40) no Hoare annotation was computed. [2023-11-06 22:36:01,139 INFO L899 garLoopResultBuilder]: For program point L34-3(line 34) no Hoare annotation was computed. [2023-11-06 22:36:01,140 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-06 22:36:01,140 INFO L899 garLoopResultBuilder]: For program point L34-4(line 34) no Hoare annotation was computed. [2023-11-06 22:36:01,140 INFO L895 garLoopResultBuilder]: At program point L34-5(lines 34 40) the Hoare annotation is: (< 0 (+ 2147483649 |ULTIMATE.start_main_~i~1#1|)) [2023-11-06 22:36:01,140 INFO L899 garLoopResultBuilder]: For program point L34-6(lines 34 40) no Hoare annotation was computed. [2023-11-06 22:36:01,140 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 25) no Hoare annotation was computed. [2023-11-06 22:36:01,140 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2023-11-06 22:36:01,141 INFO L899 garLoopResultBuilder]: For program point L22-4(line 22) no Hoare annotation was computed. [2023-11-06 22:36:01,141 INFO L895 garLoopResultBuilder]: At program point L22-5(lines 22 25) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~flag~0#1| 0))) (or (and (= |ULTIMATE.start_init_~size#1| 1000000) (= |ULTIMATE.start_init_~i~0#1| 0) .cse0) (and (<= |ULTIMATE.start_init_~size#1| 1000000) (<= |ULTIMATE.start_init_~i~0#1| 2147483646) .cse0 (<= 1 |ULTIMATE.start_init_~i~0#1|)))) [2023-11-06 22:36:01,141 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2023-11-06 22:36:01,145 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:01,147 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:36:01,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:36:01 BoogieIcfgContainer [2023-11-06 22:36:01,160 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:36:01,161 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:36:01,161 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:36:01,161 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:36:01,162 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:35:17" (3/4) ... [2023-11-06 22:36:01,164 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:36:01,173 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-06 22:36:01,174 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:36:01,174 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:36:01,174 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:36:01,236 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:36:01,237 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:36:01,237 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:36:01,238 INFO L158 Benchmark]: Toolchain (without parser) took 44885.24ms. Allocated memory was 165.7MB in the beginning and 765.5MB in the end (delta: 599.8MB). Free memory was 123.9MB in the beginning and 476.0MB in the end (delta: -352.0MB). Peak memory consumption was 249.8MB. Max. memory is 16.1GB. [2023-11-06 22:36:01,238 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:36:01,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.22ms. Allocated memory is still 165.7MB. Free memory was 123.9MB in the beginning and 113.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:36:01,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.10ms. Allocated memory is still 165.7MB. Free memory was 113.5MB in the beginning and 111.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:36:01,239 INFO L158 Benchmark]: Boogie Preprocessor took 26.48ms. Allocated memory is still 165.7MB. Free memory was 111.8MB in the beginning and 110.9MB in the end (delta: 993.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:36:01,240 INFO L158 Benchmark]: RCFGBuilder took 399.65ms. Allocated memory is still 165.7MB. Free memory was 110.4MB in the beginning and 99.3MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:36:01,240 INFO L158 Benchmark]: TraceAbstraction took 44093.03ms. Allocated memory was 165.7MB in the beginning and 765.5MB in the end (delta: 599.8MB). Free memory was 98.8MB in the beginning and 479.1MB in the end (delta: -380.3MB). Peak memory consumption was 331.6MB. Max. memory is 16.1GB. [2023-11-06 22:36:01,241 INFO L158 Benchmark]: Witness Printer took 76.41ms. Allocated memory is still 765.5MB. Free memory was 479.1MB in the beginning and 476.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:36:01,243 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.22ms. Allocated memory is still 165.7MB. Free memory was 123.9MB in the beginning and 113.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.10ms. Allocated memory is still 165.7MB. Free memory was 113.5MB in the beginning and 111.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.48ms. Allocated memory is still 165.7MB. Free memory was 111.8MB in the beginning and 110.9MB in the end (delta: 993.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 399.65ms. Allocated memory is still 165.7MB. Free memory was 110.4MB in the beginning and 99.3MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 44093.03ms. Allocated memory was 165.7MB in the beginning and 765.5MB in the end (delta: 599.8MB). Free memory was 98.8MB in the beginning and 479.1MB in the end (delta: -380.3MB). Peak memory consumption was 331.6MB. Max. memory is 16.1GB. * Witness Printer took 76.41ms. Allocated memory is still 765.5MB. Free memory was 479.1MB in the beginning and 476.0MB in the end (delta: 3.2MB). 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: 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, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 44.0s, OverallIterations: 17, TraceHistogramMax: 63, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1203 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1203 mSDsluCounter, 1631 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1251 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1359 IncrementalHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 380 mSDtfsCounter, 1359 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1504 GetRequests, 823 SyntacticMatches, 0 SemanticMatches, 681 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37384 ImplicationChecksByTransitivity, 23.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=15, InterpolantAutomatonStates: 311, 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, 17 MinimizatonAttempts, 68 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 77 NumberOfFragments, 35 HoareAnnotationTreeSize, 4 FomulaSimplifications, 710 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 4 FomulaSimplificationsInter, 2797 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 30.1s InterpolantComputationTime, 1868 NumberOfCodeBlocks, 1575 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2184 ConstructedInterpolants, 0 QuantifiedInterpolants, 6878 SizeOfPredicates, 82 NumberOfNonLiveVariables, 1637 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 35 InterpolantComputations, 10 PerfectInterpolantSequences, 16850/32105 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: 22]: Loop Invariant Derived loop invariant: ((((size == 1000000) && (i == 0)) && (flag == 0)) || ((((size <= 1000000) && (i <= 2147483646)) && (flag == 0)) && (1 <= i))) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:36:01,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83842e6a-56e1-4309-886e-5c774371a483/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