./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_copy1_ground-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/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_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/standard_copy1_ground-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/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_6a706165-8ecd-4218-a4b1-9ccd10837290/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 5b1ea2b89c0210def4460c68ce885cb310645908c528d57c04841cf488f85c6b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:41:18,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:41:18,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:41:18,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:41:18,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:41:19,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:41:19,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:41:19,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:41:19,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:41:19,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:41:19,022 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:41:19,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:41:19,023 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:41:19,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:41:19,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:41:19,025 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:41:19,026 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:41:19,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:41:19,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:41:19,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:41:19,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:41:19,029 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:41:19,030 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:41:19,030 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:41:19,031 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:41:19,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:41:19,032 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:41:19,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:41:19,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:41:19,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:41:19,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:41:19,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:41:19,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:41:19,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:41:19,036 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:41:19,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:41:19,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:41:19,037 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:41:19,037 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:41:19,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:41:19,037 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:41:19,038 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_6a706165-8ecd-4218-a4b1-9ccd10837290/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b1ea2b89c0210def4460c68ce885cb310645908c528d57c04841cf488f85c6b [2023-11-06 22:41:19,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:41:19,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:41:19,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:41:19,317 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:41:19,318 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:41:19,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-examples/standard_copy1_ground-1.i [2023-11-06 22:41:22,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:41:22,645 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:41:22,646 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/sv-benchmarks/c/array-examples/standard_copy1_ground-1.i [2023-11-06 22:41:22,656 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/data/365000d3a/2b69d6735f90430a8314d7266bc6e3c2/FLAG839d190d8 [2023-11-06 22:41:22,679 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/data/365000d3a/2b69d6735f90430a8314d7266bc6e3c2 [2023-11-06 22:41:22,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:41:22,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:41:22,688 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:41:22,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:41:22,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:41:22,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:22,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ed40b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22, skipping insertion in model container [2023-11-06 22:41:22,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:22,729 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:41:22,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:41:22,933 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:41:22,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:41:22,967 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:41:22,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22 WrapperNode [2023-11-06 22:41:22,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:41:22,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:41:22,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:41:22,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:41:22,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:22,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:23,009 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-11-06 22:41:23,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:41:23,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:41:23,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:41:23,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:41:23,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:23,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:23,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:23,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:23,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:23,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:23,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:23,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:23,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:41:23,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:41:23,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:41:23,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:41:23,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (1/1) ... [2023-11-06 22:41:23,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:41:23,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:23,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:41:23,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:41:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:41:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:41:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:41:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:41:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:41:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:41:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:41:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:41:23,182 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:41:23,184 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:41:23,354 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:41:23,360 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:41:23,360 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:41:23,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:41:23 BoogieIcfgContainer [2023-11-06 22:41:23,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:41:23,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:41:23,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:41:23,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:41:23,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:41:22" (1/3) ... [2023-11-06 22:41:23,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36492bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:41:23, skipping insertion in model container [2023-11-06 22:41:23,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:41:22" (2/3) ... [2023-11-06 22:41:23,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36492bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:41:23, skipping insertion in model container [2023-11-06 22:41:23,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:41:23" (3/3) ... [2023-11-06 22:41:23,372 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy1_ground-1.i [2023-11-06 22:41:23,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:41:23,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:41:23,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:41:23,488 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;@134364fe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:41:23,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-06 22:41:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:23,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:41:23,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:23,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:41:23,502 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 22:41:23,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:23,511 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2023-11-06 22:41:23,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:23,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318474183] [2023-11-06 22:41:23,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:23,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:23,904 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 22:41:23,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:23,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318474183] [2023-11-06 22:41:23,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318474183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:23,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:23,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:41:23,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221472932] [2023-11-06 22:41:23,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:23,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:41:23,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:23,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:41:23,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:41:23,970 INFO L87 Difference]: Start difference. First operand has 31 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 22:41:24,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:24,048 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2023-11-06 22:41:24,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:41:24,054 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 22:41:24,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:24,062 INFO L225 Difference]: With dead ends: 59 [2023-11-06 22:41:24,062 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 22:41:24,065 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 22:41:24,069 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 3 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:24,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 78 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:41:24,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 22:41:24,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 22:41:24,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 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 22:41:24,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-11-06 22:41:24,111 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2023-11-06 22:41:24,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:24,112 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-11-06 22:41:24,112 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 22:41:24,112 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-11-06 22:41:24,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:41:24,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:24,113 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:41:24,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:41:24,114 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:41:24,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:24,114 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2023-11-06 22:41:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:24,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150914281] [2023-11-06 22:41:24,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:24,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:24,251 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 22:41:24,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:24,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150914281] [2023-11-06 22:41:24,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150914281] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:41:24,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634467755] [2023-11-06 22:41:24,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:24,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:24,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:24,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:24,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:41:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:24,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:41:24,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:24,489 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 22:41:24,490 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:41:24,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634467755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:24,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:41:24,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-06 22:41:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728948576] [2023-11-06 22:41:24,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:24,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:41:24,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:24,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:41:24,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:41:24,494 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 22:41:24,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:24,532 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2023-11-06 22:41:24,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:41:24,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 22:41:24,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:24,534 INFO L225 Difference]: With dead ends: 28 [2023-11-06 22:41:24,534 INFO L226 Difference]: Without dead ends: 27 [2023-11-06 22:41:24,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:41:24,537 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 23 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:24,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 56 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:41:24,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-06 22:41:24,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-06 22:41:24,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 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 22:41:24,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2023-11-06 22:41:24,544 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 9 [2023-11-06 22:41:24,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:24,544 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2023-11-06 22:41:24,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 22:41:24,545 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2023-11-06 22:41:24,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:41:24,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:24,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:41:24,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:24,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:24,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:41:24,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:24,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2023-11-06 22:41:24,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:24,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623722214] [2023-11-06 22:41:24,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:24,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:41:24,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:24,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623722214] [2023-11-06 22:41:24,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623722214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:24,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:24,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:41:24,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322163807] [2023-11-06 22:41:24,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:24,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:41:24,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:24,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:41:24,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:41:24,872 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:24,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:24,899 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2023-11-06 22:41:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:41:24,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-06 22:41:24,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:24,900 INFO L225 Difference]: With dead ends: 27 [2023-11-06 22:41:24,900 INFO L226 Difference]: Without dead ends: 26 [2023-11-06 22:41:24,901 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 22:41:24,903 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:24,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 57 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:41:24,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-06 22:41:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2023-11-06 22:41:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 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 22:41:24,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-11-06 22:41:24,910 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 10 [2023-11-06 22:41:24,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:24,910 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-11-06 22:41:24,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:24,911 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-11-06 22:41:24,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:41:24,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:24,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:24,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:41:24,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:41:24,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:24,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504278, now seen corresponding path program 1 times [2023-11-06 22:41:24,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:24,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615100849] [2023-11-06 22:41:24,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:24,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:41:25,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:25,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615100849] [2023-11-06 22:41:25,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615100849] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:41:25,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532296459] [2023-11-06 22:41:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:25,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:25,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:25,070 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:25,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:41:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:25,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:41:25,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:25,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:41:25,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:41:25,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:41:25,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532296459] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:41:25,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:41:25,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-06 22:41:25,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356799634] [2023-11-06 22:41:25,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:41:25,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:41:25,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:25,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:41:25,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:41:25,199 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 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 22:41:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:25,253 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2023-11-06 22:41:25,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:41:25,254 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-06 22:41:25,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:25,254 INFO L225 Difference]: With dead ends: 47 [2023-11-06 22:41:25,255 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 22:41:25,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:41:25,257 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:25,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 95 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:41:25,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 22:41:25,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-06 22:41:25,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-11-06 22:41:25,263 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 11 [2023-11-06 22:41:25,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:25,264 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-11-06 22:41:25,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 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 22:41:25,264 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-11-06 22:41:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:41:25,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:25,265 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:25,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:25,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:25,471 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 22:41:25,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:25,472 INFO L85 PathProgramCache]: Analyzing trace with hash -230725406, now seen corresponding path program 2 times [2023-11-06 22:41:25,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:25,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215603872] [2023-11-06 22:41:25,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:25,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:41:25,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:25,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215603872] [2023-11-06 22:41:25,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215603872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:25,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:25,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:41:25,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753355991] [2023-11-06 22:41:25,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:25,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:41:25,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:25,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:41:25,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:41:25,618 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:25,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:25,667 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2023-11-06 22:41:25,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:41:25,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-06 22:41:25,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:25,670 INFO L225 Difference]: With dead ends: 46 [2023-11-06 22:41:25,670 INFO L226 Difference]: Without dead ends: 35 [2023-11-06 22:41:25,671 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 22:41:25,673 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:25,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 55 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:41:25,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-06 22:41:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-06 22:41:25,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:25,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2023-11-06 22:41:25,684 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 19 [2023-11-06 22:41:25,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:25,685 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2023-11-06 22:41:25,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:25,686 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2023-11-06 22:41:25,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 22:41:25,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:25,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:25,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:41:25,688 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 22:41:25,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:25,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2133188386, now seen corresponding path program 1 times [2023-11-06 22:41:25,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:25,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983034885] [2023-11-06 22:41:25,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:25,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:41:25,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:25,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983034885] [2023-11-06 22:41:25,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983034885] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:41:25,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717581514] [2023-11-06 22:41:25,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:25,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:25,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:25,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:25,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:41:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:25,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:41:25,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:41:26,049 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:41:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:41:26,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717581514] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:41:26,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:41:26,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-06 22:41:26,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915476685] [2023-11-06 22:41:26,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:41:26,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-06 22:41:26,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:26,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-06 22:41:26,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:41:26,191 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) 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 22:41:26,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:26,344 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2023-11-06 22:41:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:41:26,345 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) 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 23 [2023-11-06 22:41:26,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:26,347 INFO L225 Difference]: With dead ends: 71 [2023-11-06 22:41:26,347 INFO L226 Difference]: Without dead ends: 51 [2023-11-06 22:41:26,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:41:26,352 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 24 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:26,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 94 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:41:26,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-06 22:41:26,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-06 22:41:26,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.127659574468085) internal successors, (53), 50 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:26,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2023-11-06 22:41:26,375 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 23 [2023-11-06 22:41:26,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:26,375 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2023-11-06 22:41:26,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) 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 22:41:26,376 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2023-11-06 22:41:26,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:41:26,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:26,378 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:26,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:26,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:41:26,584 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:41:26,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1327043278, now seen corresponding path program 2 times [2023-11-06 22:41:26,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:26,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921410960] [2023-11-06 22:41:26,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:26,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:41:27,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:27,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921410960] [2023-11-06 22:41:27,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921410960] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:41:27,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265012804] [2023-11-06 22:41:27,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:41:27,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:27,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:27,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:27,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:41:27,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:41:27,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:41:27,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:41:27,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:41:27,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:41:27,650 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:41:27,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265012804] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:41:27,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:41:27,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2023-11-06 22:41:27,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550532229] [2023-11-06 22:41:27,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:41:27,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-06 22:41:27,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:27,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-06 22:41:27,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 22:41:27,656 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 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 22:41:28,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:28,053 INFO L93 Difference]: Finished difference Result 103 states and 114 transitions. [2023-11-06 22:41:28,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-06 22:41:28,056 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-11-06 22:41:28,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:28,059 INFO L225 Difference]: With dead ends: 103 [2023-11-06 22:41:28,059 INFO L226 Difference]: Without dead ends: 83 [2023-11-06 22:41:28,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2023-11-06 22:41:28,062 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 88 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:28,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 186 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:41:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-06 22:41:28,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-11-06 22:41:28,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.0759493670886076) internal successors, (85), 82 states have internal predecessors, (85), 0 states have call successors, (0), 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 22:41:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 85 transitions. [2023-11-06 22:41:28,078 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 85 transitions. Word has length 39 [2023-11-06 22:41:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:28,078 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 85 transitions. [2023-11-06 22:41:28,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 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 22:41:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2023-11-06 22:41:28,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-06 22:41:28,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:28,081 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:28,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:28,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:28,290 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 22:41:28,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:28,290 INFO L85 PathProgramCache]: Analyzing trace with hash -753838418, now seen corresponding path program 3 times [2023-11-06 22:41:28,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:28,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77532878] [2023-11-06 22:41:28,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:28,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:41:29,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:29,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77532878] [2023-11-06 22:41:29,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77532878] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:41:29,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795890782] [2023-11-06 22:41:29,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:41:29,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:29,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:29,364 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:29,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:41:29,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:41:29,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:41:29,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:41:29,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:29,557 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:41:29,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:41:29,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795890782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:29,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:41:29,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 36 [2023-11-06 22:41:29,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165793015] [2023-11-06 22:41:29,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:29,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:41:29,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:29,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:41:29,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2023-11-06 22:41:29,560 INFO L87 Difference]: Start difference. First operand 83 states and 85 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:29,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:29,612 INFO L93 Difference]: Finished difference Result 83 states and 85 transitions. [2023-11-06 22:41:29,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:41:29,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-11-06 22:41:29,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:29,617 INFO L225 Difference]: With dead ends: 83 [2023-11-06 22:41:29,617 INFO L226 Difference]: Without dead ends: 82 [2023-11-06 22:41:29,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2023-11-06 22:41:29,619 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 15 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:29,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 55 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:41:29,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-06 22:41:29,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-11-06 22:41:29,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 79 states have (on average 1.0632911392405062) internal successors, (84), 81 states have internal predecessors, (84), 0 states have call successors, (0), 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 22:41:29,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2023-11-06 22:41:29,630 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 71 [2023-11-06 22:41:29,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:29,632 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2023-11-06 22:41:29,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:29,632 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2023-11-06 22:41:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-06 22:41:29,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:29,642 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:29,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-06 22:41:29,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:29,847 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:41:29,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:29,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1894154414, now seen corresponding path program 1 times [2023-11-06 22:41:29,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:29,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387063392] [2023-11-06 22:41:29,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:29,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2023-11-06 22:41:29,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:29,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387063392] [2023-11-06 22:41:29,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387063392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:29,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:29,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:41:29,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074651799] [2023-11-06 22:41:29,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:29,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:41:29,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:29,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:41:29,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:41:29,959 INFO L87 Difference]: Start difference. First operand 82 states and 84 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:29,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:29,979 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2023-11-06 22:41:29,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:41:29,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-11-06 22:41:29,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:29,982 INFO L225 Difference]: With dead ends: 82 [2023-11-06 22:41:29,982 INFO L226 Difference]: Without dead ends: 81 [2023-11-06 22:41:29,983 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 22:41:29,985 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:29,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 50 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:41:29,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-06 22:41:30,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2023-11-06 22:41:30,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 1.0526315789473684) internal successors, (80), 77 states have internal predecessors, (80), 0 states have call successors, (0), 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 22:41:30,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2023-11-06 22:41:30,006 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 72 [2023-11-06 22:41:30,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:30,006 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2023-11-06 22:41:30,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:30,007 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2023-11-06 22:41:30,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:41:30,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:30,009 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:30,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:41:30,009 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:41:30,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:30,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1288975798, now seen corresponding path program 1 times [2023-11-06 22:41:30,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:30,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868091722] [2023-11-06 22:41:30,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:30,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:41:30,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:30,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868091722] [2023-11-06 22:41:30,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868091722] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:41:30,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847359994] [2023-11-06 22:41:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:30,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:30,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:30,200 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:30,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:41:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:30,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-06 22:41:30,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:30,972 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:41:30,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:41:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:41:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847359994] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:41:32,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:41:32,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2023-11-06 22:41:32,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700203332] [2023-11-06 22:41:32,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:41:32,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-11-06 22:41:32,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:32,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-11-06 22:41:32,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2023-11-06 22:41:32,228 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand has 67 states, 67 states have (on average 2.2238805970149254) internal successors, (149), 67 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:33,424 INFO L93 Difference]: Finished difference Result 164 states and 184 transitions. [2023-11-06 22:41:33,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-06 22:41:33,425 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.2238805970149254) internal successors, (149), 67 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-11-06 22:41:33,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:33,426 INFO L225 Difference]: With dead ends: 164 [2023-11-06 22:41:33,426 INFO L226 Difference]: Without dead ends: 149 [2023-11-06 22:41:33,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2023-11-06 22:41:33,431 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 157 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:33,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 152 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:41:33,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-06 22:41:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 146. [2023-11-06 22:41:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 144 states have (on average 1.0277777777777777) internal successors, (148), 145 states have internal predecessors, (148), 0 states have call successors, (0), 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 22:41:33,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 148 transitions. [2023-11-06 22:41:33,452 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 148 transitions. Word has length 75 [2023-11-06 22:41:33,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:33,453 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 148 transitions. [2023-11-06 22:41:33,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.2238805970149254) internal successors, (149), 67 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 148 transitions. [2023-11-06 22:41:33,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-06 22:41:33,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:33,455 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:33,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:33,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:41:33,666 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 22:41:33,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:33,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1340075662, now seen corresponding path program 2 times [2023-11-06 22:41:33,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:33,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342746106] [2023-11-06 22:41:33,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:33,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:33,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2023-11-06 22:41:33,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:33,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342746106] [2023-11-06 22:41:33,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342746106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:41:33,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:41:33,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:41:33,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026754891] [2023-11-06 22:41:33,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:41:33,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:41:33,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:33,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:41:33,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:41:33,870 INFO L87 Difference]: Start difference. First operand 146 states and 148 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:33,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:33,893 INFO L93 Difference]: Finished difference Result 154 states and 156 transitions. [2023-11-06 22:41:33,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:41:33,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2023-11-06 22:41:33,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:33,895 INFO L225 Difference]: With dead ends: 154 [2023-11-06 22:41:33,896 INFO L226 Difference]: Without dead ends: 152 [2023-11-06 22:41:33,896 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 22:41:33,897 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:33,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 50 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:41:33,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-06 22:41:33,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2023-11-06 22:41:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.0266666666666666) internal successors, (154), 151 states have internal predecessors, (154), 0 states have call successors, (0), 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 22:41:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 154 transitions. [2023-11-06 22:41:33,911 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 154 transitions. Word has length 143 [2023-11-06 22:41:33,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:33,913 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 154 transitions. [2023-11-06 22:41:33,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:41:33,913 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 154 transitions. [2023-11-06 22:41:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-06 22:41:33,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:33,918 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:41:33,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:41:33,918 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 22:41:33,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:33,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1674974816, now seen corresponding path program 1 times [2023-11-06 22:41:33,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:33,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688668799] [2023-11-06 22:41:33,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:33,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:37,223 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 22:41:37,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:37,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688668799] [2023-11-06 22:41:37,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688668799] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:41:37,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478403151] [2023-11-06 22:41:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:37,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:37,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:37,225 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:37,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:41:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:37,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-06 22:41:37,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:37,690 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 22:41:37,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:41:41,901 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 22:41:41,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478403151] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:41:41,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:41:41,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2023-11-06 22:41:41,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287839772] [2023-11-06 22:41:41,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:41:41,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2023-11-06 22:41:41,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:41:41,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2023-11-06 22:41:41,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2023-11-06 22:41:41,914 INFO L87 Difference]: Start difference. First operand 152 states and 154 transitions. Second operand has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 0 states have call successors, (0), 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 22:41:45,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:41:45,396 INFO L93 Difference]: Finished difference Result 305 states and 340 transitions. [2023-11-06 22:41:45,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-11-06 22:41:45,404 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 0 states have call successors, (0), 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 22:41:45,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:41:45,407 INFO L225 Difference]: With dead ends: 305 [2023-11-06 22:41:45,407 INFO L226 Difference]: Without dead ends: 280 [2023-11-06 22:41:45,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2023-11-06 22:41:45,427 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 460 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:41:45,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 267 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:41:45,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-06 22:41:45,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2023-11-06 22:41:45,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 278 states have (on average 1.014388489208633) internal successors, (282), 279 states have internal predecessors, (282), 0 states have call successors, (0), 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 22:41:45,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 282 transitions. [2023-11-06 22:41:45,442 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 282 transitions. Word has length 149 [2023-11-06 22:41:45,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:41:45,443 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 282 transitions. [2023-11-06 22:41:45,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 0 states have call successors, (0), 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 22:41:45,443 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 282 transitions. [2023-11-06 22:41:45,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-11-06 22:41:45,447 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:41:45,448 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] [2023-11-06 22:41:45,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:41:45,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:41:45,654 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 22:41:45,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:41:45,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1626528032, now seen corresponding path program 2 times [2023-11-06 22:41:45,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:41:45,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597714699] [2023-11-06 22:41:45,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:41:45,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:41:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:41:56,908 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 22:41:56,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:41:56,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597714699] [2023-11-06 22:41:56,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597714699] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:41:56,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980739959] [2023-11-06 22:41:56,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:41:56,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:41:56,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:41:56,910 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:41:56,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:41:57,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:41:57,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:41:57,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 128 conjunts are in the unsatisfiable core [2023-11-06 22:41:57,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:41:57,824 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 22:41:57,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:42:12,061 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 22:42:12,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980739959] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:42:12,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:42:12,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2023-11-06 22:42:12,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76805804] [2023-11-06 22:42:12,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:42:12,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2023-11-06 22:42:12,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:12,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2023-11-06 22:42:12,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2023-11-06 22:42:12,079 INFO L87 Difference]: Start difference. First operand 280 states and 282 transitions. Second operand has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 0 states have call successors, (0), 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 22:42:25,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:25,932 INFO L93 Difference]: Finished difference Result 561 states and 628 transitions. [2023-11-06 22:42:25,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2023-11-06 22:42:25,933 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 0 states have call successors, (0), 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 22:42:25,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:25,935 INFO L225 Difference]: With dead ends: 561 [2023-11-06 22:42:25,936 INFO L226 Difference]: Without dead ends: 536 [2023-11-06 22:42:25,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2023-11-06 22:42:25,946 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1462 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:42:25,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 153 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:42:25,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2023-11-06 22:42:25,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2023-11-06 22:42:25,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 534 states have (on average 1.0074906367041199) internal successors, (538), 535 states have internal predecessors, (538), 0 states have call successors, (0), 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 22:42:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 538 transitions. [2023-11-06 22:42:25,968 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 538 transitions. Word has length 277 [2023-11-06 22:42:25,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:25,969 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 538 transitions. [2023-11-06 22:42:25,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.046511627906977) internal successors, (528), 258 states have internal predecessors, (528), 0 states have call successors, (0), 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 22:42:25,969 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 538 transitions. [2023-11-06 22:42:25,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2023-11-06 22:42:25,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:25,981 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:25,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-06 22:42:26,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:42:26,188 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 22:42:26,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:26,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1327282208, now seen corresponding path program 3 times [2023-11-06 22:42:26,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:26,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832914796] [2023-11-06 22:42:26,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:26,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:03,697 INFO L134 CoverageAnalysis]: Checked inductivity of 32142 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-06 22:43:03,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:03,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832914796] [2023-11-06 22:43:03,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832914796] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:43:03,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378820627] [2023-11-06 22:43:03,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:43:03,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:03,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:03,700 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:43:03,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:43:03,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:43:03,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:43:03,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:43:03,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:04,375 INFO L134 CoverageAnalysis]: Checked inductivity of 32142 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2023-11-06 22:43:04,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:04,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378820627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:04,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:43:04,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [257] total 260 [2023-11-06 22:43:04,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32648187] [2023-11-06 22:43:04,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:04,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:43:04,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:04,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:43:04,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16647, Invalid=50693, Unknown=0, NotChecked=0, Total=67340 [2023-11-06 22:43:04,387 INFO L87 Difference]: Start difference. First operand 536 states and 538 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 22:43:04,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:04,560 INFO L93 Difference]: Finished difference Result 536 states and 538 transitions. [2023-11-06 22:43:04,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:43:04,561 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 533 [2023-11-06 22:43:04,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:04,568 INFO L225 Difference]: With dead ends: 536 [2023-11-06 22:43:04,569 INFO L226 Difference]: Without dead ends: 535 [2023-11-06 22:43:04,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16761 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=16652, Invalid=51208, Unknown=0, NotChecked=0, Total=67860 [2023-11-06 22:43:04,579 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:04,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 43 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:04,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-06 22:43:04,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-11-06 22:43:04,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.0056179775280898) internal successors, (537), 534 states have internal predecessors, (537), 0 states have call successors, (0), 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 22:43:04,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 537 transitions. [2023-11-06 22:43:04,617 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 537 transitions. Word has length 533 [2023-11-06 22:43:04,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:04,619 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 537 transitions. [2023-11-06 22:43:04,619 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 22:43:04,619 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 537 transitions. [2023-11-06 22:43:04,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-11-06 22:43:04,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:04,632 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:43:04,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:04,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:43:04,838 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-06 22:43:04,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:04,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1803924414, now seen corresponding path program 1 times [2023-11-06 22:43:04,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:04,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275110244] [2023-11-06 22:43:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:04,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 32143 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 32138 trivial. 0 not checked. [2023-11-06 22:43:05,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:05,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275110244] [2023-11-06 22:43:05,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275110244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:05,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:05,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:43:05,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564480951] [2023-11-06 22:43:05,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:05,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:43:05,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:05,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:43:05,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:43:05,339 INFO L87 Difference]: Start difference. First operand 535 states and 537 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 22:43:05,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:05,364 INFO L93 Difference]: Finished difference Result 535 states and 537 transitions. [2023-11-06 22:43:05,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:43:05,365 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 534 [2023-11-06 22:43:05,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:05,367 INFO L225 Difference]: With dead ends: 535 [2023-11-06 22:43:05,367 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:43:05,369 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 22:43:05,369 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:05,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 43 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:05,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:43:05,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:43:05,371 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 22:43:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:43:05,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 534 [2023-11-06 22:43:05,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:05,372 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:43:05,372 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 22:43:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:43:05,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:43:05,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-06 22:43:05,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-06 22:43:05,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-06 22:43:05,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-06 22:43:05,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-06 22:43:05,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-06 22:43:05,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:43:05,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:43:05,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-06 22:43:05,691 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 29) no Hoare annotation was computed. [2023-11-06 22:43:05,691 INFO L899 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2023-11-06 22:43:05,691 INFO L899 garLoopResultBuilder]: For program point L27-4(line 27) no Hoare annotation was computed. [2023-11-06 22:43:05,692 INFO L895 garLoopResultBuilder]: At program point L27-5(lines 27 29) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2023-11-06 22:43:05,692 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 25) no Hoare annotation was computed. [2023-11-06 22:43:05,692 INFO L899 garLoopResultBuilder]: For program point L27-6(lines 27 29) no Hoare annotation was computed. [2023-11-06 22:43:05,692 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2023-11-06 22:43:05,693 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2023-11-06 22:43:05,693 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648))) [2023-11-06 22:43:05,693 INFO L899 garLoopResultBuilder]: For program point L19-2(lines 19 21) no Hoare annotation was computed. [2023-11-06 22:43:05,693 INFO L899 garLoopResultBuilder]: For program point L23-6(lines 23 25) no Hoare annotation was computed. [2023-11-06 22:43:05,693 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-06 22:43:05,694 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2023-11-06 22:43:05,694 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 21) the Hoare annotation is: (< 0 (+ 2147483649 |ULTIMATE.start_main_~a~0#1|)) [2023-11-06 22:43:05,694 INFO L899 garLoopResultBuilder]: For program point L19-6(lines 19 21) no Hoare annotation was computed. [2023-11-06 22:43:05,694 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 15 31) the Hoare annotation is: true [2023-11-06 22:43:05,694 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:43:05,694 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-06 22:43:05,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2023-11-06 22:43:05,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:43:05,695 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-06 22:43:05,695 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-06 22:43:05,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-06 22:43:05,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:43:05,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2023-11-06 22:43:05,696 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-06 22:43:05,696 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-11-06 22:43:05,696 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2023-11-06 22:43:05,696 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:43:05,696 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-06 22:43:05,700 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:43:05,702 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:43:05,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:43:05 BoogieIcfgContainer [2023-11-06 22:43:05,715 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:43:05,716 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:43:05,716 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:43:05,716 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:43:05,717 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:41:23" (3/4) ... [2023-11-06 22:43:05,720 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:43:05,729 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-06 22:43:05,729 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:43:05,730 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:43:05,730 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:43:05,795 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:43:05,795 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:43:05,795 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:43:05,796 INFO L158 Benchmark]: Toolchain (without parser) took 103110.00ms. Allocated memory was 186.6MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 155.8MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 234.8MB. Max. memory is 16.1GB. [2023-11-06 22:43:05,797 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 186.6MB. Free memory was 147.6MB in the beginning and 147.4MB in the end (delta: 228.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:43:05,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.16ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 145.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:43:05,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.24ms. Allocated memory is still 186.6MB. Free memory was 145.1MB in the beginning and 143.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:43:05,798 INFO L158 Benchmark]: Boogie Preprocessor took 26.02ms. Allocated memory is still 186.6MB. Free memory was 143.8MB in the beginning and 142.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:43:05,798 INFO L158 Benchmark]: RCFGBuilder took 326.09ms. Allocated memory is still 186.6MB. Free memory was 142.2MB in the beginning and 130.6MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:43:05,799 INFO L158 Benchmark]: TraceAbstraction took 102349.67ms. Allocated memory was 186.6MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 130.0MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 203.3MB. Max. memory is 16.1GB. [2023-11-06 22:43:05,799 INFO L158 Benchmark]: Witness Printer took 79.70ms. Allocated memory is still 2.1GB. Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:43:05,801 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 186.6MB. Free memory was 147.6MB in the beginning and 147.4MB in the end (delta: 228.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.16ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 145.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.24ms. Allocated memory is still 186.6MB. Free memory was 145.1MB in the beginning and 143.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.02ms. Allocated memory is still 186.6MB. Free memory was 143.8MB in the beginning and 142.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.09ms. Allocated memory is still 186.6MB. Free memory was 142.2MB in the beginning and 130.6MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 102349.67ms. Allocated memory was 186.6MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 130.0MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 203.3MB. Max. memory is 16.1GB. * Witness Printer took 79.70ms. Allocated memory is still 2.1GB. Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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, 31 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 102.2s, OverallIterations: 15, TraceHistogramMax: 127, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 19.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2262 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2262 mSDsluCounter, 1434 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1152 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1764 IncrementalHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 282 mSDtfsCounter, 1764 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2542 GetRequests, 1476 SyntacticMatches, 0 SemanticMatches, 1066 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60162 ImplicationChecksByTransitivity, 61.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=536occurred in iteration=13, InterpolantAutomatonStates: 537, 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, 15 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 137 NumberOfFragments, 33 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1337 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 4 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 76.8s InterpolantComputationTime, 3157 NumberOfCodeBlocks, 2593 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3701 ConstructedInterpolants, 0 QuantifiedInterpolants, 7759 SizeOfPredicates, 123 NumberOfNonLiveVariables, 2252 ConjunctsInSsa, 264 ConjunctsInUnsatCore, 30 InterpolantComputations, 9 PerfectInterpolantSequences, 67616/130675 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: 23]: Loop Invariant Derived loop invariant: ((0 <= (a + 2147483648)) && (0 <= (i + 2147483648))) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (0 < (2147483649 + a)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((0 <= (a + 2147483648)) && (0 <= (i + 2147483648))) && (0 <= (x + 2147483648))) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:43:05,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a706165-8ecd-4218-a4b1-9ccd10837290/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE