./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/sum04-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/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_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/sum04-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/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_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/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 aaea6fef281249794f41087d72bdcfa92bd0b0609c0833888767b94608daa7f2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:11:24,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:11:24,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:11:24,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:11:24,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:11:24,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:11:24,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:11:24,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:11:24,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:11:24,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:11:24,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:11:24,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:11:24,931 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:11:24,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:11:24,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:11:24,933 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:11:24,933 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:11:24,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:11:24,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:11:24,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:11:24,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:11:24,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:11:24,940 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:11:24,941 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:11:24,944 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:11:24,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:11:24,945 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:11:24,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:11:24,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:11:24,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:11:24,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:11:24,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:11:24,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:11:24,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:11:24,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:11:24,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:11:24,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:11:24,949 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:11:24,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:11:24,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:11:24,950 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:11:24,951 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_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaea6fef281249794f41087d72bdcfa92bd0b0609c0833888767b94608daa7f2 [2023-11-06 22:11:25,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:11:25,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:11:25,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:11:25,284 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:11:25,285 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:11:25,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loops/sum04-2.i [2023-11-06 22:11:28,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:11:28,590 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:11:28,591 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/sv-benchmarks/c/loops/sum04-2.i [2023-11-06 22:11:28,599 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/data/c0c40887b/91eddedd5e4441579c765803c9162140/FLAG8e3b32a40 [2023-11-06 22:11:28,614 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/data/c0c40887b/91eddedd5e4441579c765803c9162140 [2023-11-06 22:11:28,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:11:28,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:11:28,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:11:28,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:11:28,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:11:28,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b1954b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28, skipping insertion in model container [2023-11-06 22:11:28,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,649 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:11:28,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:11:28,818 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:11:28,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:11:28,848 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:11:28,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28 WrapperNode [2023-11-06 22:11:28,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:11:28,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:11:28,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:11:28,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:11:28,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,882 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 33 [2023-11-06 22:11:28,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:11:28,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:11:28,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:11:28,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:11:28,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,901 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,907 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:11:28,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:11:28,913 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:11:28,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:11:28,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (1/1) ... [2023-11-06 22:11:28,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:11:28,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:28,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:11:28,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:11:28,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:11:28,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:11:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:11:29,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:11:29,080 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:11:29,083 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:11:29,217 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:11:29,223 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:11:29,223 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:11:29,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:11:29 BoogieIcfgContainer [2023-11-06 22:11:29,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:11:29,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:11:29,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:11:29,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:11:29,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:11:28" (1/3) ... [2023-11-06 22:11:29,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5368fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:11:29, skipping insertion in model container [2023-11-06 22:11:29,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:11:28" (2/3) ... [2023-11-06 22:11:29,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5368fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:11:29, skipping insertion in model container [2023-11-06 22:11:29,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:11:29" (3/3) ... [2023-11-06 22:11:29,236 INFO L112 eAbstractionObserver]: Analyzing ICFG sum04-2.i [2023-11-06 22:11:29,256 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:11:29,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 22:11:29,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:11:29,314 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;@54f1ef09, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:11:29,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-06 22:11:29,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:29,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:11:29,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:11:29,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:11:29,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:11:29,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:29,333 INFO L85 PathProgramCache]: Analyzing trace with hash 925764, now seen corresponding path program 1 times [2023-11-06 22:11:29,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:29,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234047245] [2023-11-06 22:11:29,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:29,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:29,501 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 22:11:29,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:29,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234047245] [2023-11-06 22:11:29,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234047245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:11:29,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:11:29,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:11:29,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374980410] [2023-11-06 22:11:29,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:11:29,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:11:29,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:29,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:11:29,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:11:29,546 INFO L87 Difference]: Start difference. First operand has 21 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:29,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:29,585 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2023-11-06 22:11:29,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:11:29,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-06 22:11:29,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:11:29,602 INFO L225 Difference]: With dead ends: 40 [2023-11-06 22:11:29,602 INFO L226 Difference]: Without dead ends: 15 [2023-11-06 22:11:29,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:11:29,610 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 7 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 30 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 22:11:29,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 30 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:11:29,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-06 22:11:29,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-06 22:11:29,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:29,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-06 22:11:29,647 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 4 [2023-11-06 22:11:29,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:11:29,648 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-06 22:11:29,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:29,648 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-06 22:11:29,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:11:29,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:11:29,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:11:29,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:11:29,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:11:29,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:29,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1809675306, now seen corresponding path program 1 times [2023-11-06 22:11:29,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:29,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439571841] [2023-11-06 22:11:29,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:29,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:29,836 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 22:11:29,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:29,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439571841] [2023-11-06 22:11:29,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439571841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:11:29,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:11:29,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:11:29,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18113358] [2023-11-06 22:11:29,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:11:29,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:11:29,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:29,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:11:29,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:11:29,845 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:29,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:29,952 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2023-11-06 22:11:29,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:11:29,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 22:11:29,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:11:29,953 INFO L225 Difference]: With dead ends: 20 [2023-11-06 22:11:29,953 INFO L226 Difference]: Without dead ends: 18 [2023-11-06 22:11:29,954 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 22:11:29,956 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:11:29,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 21 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:11:29,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-06 22:11:29,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-06 22:11:29,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-11-06 22:11:29,985 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2023-11-06 22:11:29,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:11:29,986 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-11-06 22:11:29,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:29,986 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-11-06 22:11:29,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:11:29,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:11:29,987 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:11:29,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:11:29,987 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:11:29,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:29,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1607590986, now seen corresponding path program 1 times [2023-11-06 22:11:29,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:29,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610760060] [2023-11-06 22:11:29,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:29,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:30,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:30,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:30,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610760060] [2023-11-06 22:11:30,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610760060] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:11:30,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724403373] [2023-11-06 22:11:30,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:30,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:30,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:30,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:11:30,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:11:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:30,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:11:30,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:30,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:30,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:11:30,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724403373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:11:30,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:11:30,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:11:30,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891183204] [2023-11-06 22:11:30,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:11:30,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:11:30,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:30,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:11:30,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:11:30,255 INFO L87 Difference]: Start difference. First operand 18 states and 18 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 22:11:30,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:30,274 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-11-06 22:11:30,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:11:30,276 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 22:11:30,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:11:30,278 INFO L225 Difference]: With dead ends: 18 [2023-11-06 22:11:30,278 INFO L226 Difference]: Without dead ends: 17 [2023-11-06 22:11:30,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 22:11:30,283 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:11:30,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 11 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:11:30,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-06 22:11:30,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-06 22:11:30,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:30,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-06 22:11:30,297 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2023-11-06 22:11:30,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:11:30,298 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-06 22:11:30,299 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 22:11:30,299 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-06 22:11:30,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:11:30,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:11:30,302 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:11:30,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:11:30,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:30,508 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:11:30,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:30,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1704286942, now seen corresponding path program 1 times [2023-11-06 22:11:30,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:30,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098818332] [2023-11-06 22:11:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:30,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:30,585 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 22:11:30,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:30,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098818332] [2023-11-06 22:11:30,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098818332] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:11:30,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993590434] [2023-11-06 22:11:30,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:30,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:30,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:30,588 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:11:30,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:11:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:30,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:11:30,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:30,705 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 22:11:30,706 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:11:30,755 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 22:11:30,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993590434] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:11:30,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:11:30,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:11:30,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228820356] [2023-11-06 22:11:30,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:11:30,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:11:30,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:30,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:11:30,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:11:30,766 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 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 22:11:30,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:30,810 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2023-11-06 22:11:30,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:11:30,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 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 11 [2023-11-06 22:11:30,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:11:30,813 INFO L225 Difference]: With dead ends: 37 [2023-11-06 22:11:30,813 INFO L226 Difference]: Without dead ends: 36 [2023-11-06 22:11:30,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:11:30,821 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 38 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 22:11:30,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 38 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:11:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-06 22:11:30,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2023-11-06 22:11:30,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:30,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-11-06 22:11:30,842 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 11 [2023-11-06 22:11:30,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:11:30,842 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-11-06 22:11:30,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 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 22:11:30,843 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-11-06 22:11:30,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:11:30,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:11:30,844 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:11:30,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:31,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:31,053 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:11:31,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1437210012, now seen corresponding path program 1 times [2023-11-06 22:11:31,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:31,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130066115] [2023-11-06 22:11:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:31,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:31,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130066115] [2023-11-06 22:11:31,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130066115] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:11:31,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507624386] [2023-11-06 22:11:31,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:31,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:31,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:31,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:11:31,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:11:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:31,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:11:31,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:31,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:11:31,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507624386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:11:31,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:11:31,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 22:11:31,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303678535] [2023-11-06 22:11:31,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:11:31,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:11:31,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:31,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:11:31,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:11:31,244 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 22:11:31,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:31,301 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2023-11-06 22:11:31,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:11:31,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-06 22:11:31,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:11:31,304 INFO L225 Difference]: With dead ends: 32 [2023-11-06 22:11:31,304 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 22:11:31,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:11:31,308 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:11:31,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:11:31,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 22:11:31,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-06 22:11:31,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.1379310344827587) 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 22:11:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-11-06 22:11:31,327 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 13 [2023-11-06 22:11:31,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:11:31,333 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-11-06 22:11:31,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 22:11:31,335 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-11-06 22:11:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:11:31,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:11:31,337 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:11:31,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:31,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:31,538 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:11:31,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:31,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1603837362, now seen corresponding path program 1 times [2023-11-06 22:11:31,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:31,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141992197] [2023-11-06 22:11:31,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:31,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:31,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:11:31,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:31,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141992197] [2023-11-06 22:11:31,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141992197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:11:31,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:11:31,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:11:31,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307627045] [2023-11-06 22:11:31,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:11:31,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:11:31,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:31,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:11:31,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:11:31,588 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:31,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:31,605 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-11-06 22:11:31,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:11:31,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-06 22:11:31,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:11:31,607 INFO L225 Difference]: With dead ends: 31 [2023-11-06 22:11:31,607 INFO L226 Difference]: Without dead ends: 30 [2023-11-06 22:11:31,607 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 22:11:31,608 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:11:31,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 10 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:11:31,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-06 22:11:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-06 22:11:31,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 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 22:11:31,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2023-11-06 22:11:31,620 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 14 [2023-11-06 22:11:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:11:31,621 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2023-11-06 22:11:31,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:31,621 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2023-11-06 22:11:31,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-06 22:11:31,623 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:11:31,623 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1] [2023-11-06 22:11:31,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:11:31,624 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:11:31,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:31,625 INFO L85 PathProgramCache]: Analyzing trace with hash -287332784, now seen corresponding path program 2 times [2023-11-06 22:11:31,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:31,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57362270] [2023-11-06 22:11:31,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:31,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:31,809 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:31,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:31,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57362270] [2023-11-06 22:11:31,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57362270] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:11:31,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119323942] [2023-11-06 22:11:31,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:11:31,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:31,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:31,812 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:11:31,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:11:31,875 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:11:31,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:11:31,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:11:31,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:31,971 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:31,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:11:32,103 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:32,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119323942] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:11:32,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:11:32,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-06 22:11:32,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859601888] [2023-11-06 22:11:32,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:11:32,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:11:32,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:32,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:11:32,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:11:32,108 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 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 22:11:32,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:32,188 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2023-11-06 22:11:32,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:11:32,189 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-11-06 22:11:32,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:11:32,190 INFO L225 Difference]: With dead ends: 67 [2023-11-06 22:11:32,190 INFO L226 Difference]: Without dead ends: 66 [2023-11-06 22:11:32,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:11:32,191 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:11:32,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 50 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:11:32,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-06 22:11:32,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-06 22:11:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:32,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2023-11-06 22:11:32,199 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 29 [2023-11-06 22:11:32,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:11:32,200 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2023-11-06 22:11:32,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 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 22:11:32,200 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2023-11-06 22:11:32,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-06 22:11:32,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:11:32,203 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1] [2023-11-06 22:11:32,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:32,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:32,409 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:11:32,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:32,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1123780052, now seen corresponding path program 3 times [2023-11-06 22:11:32,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:32,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925802165] [2023-11-06 22:11:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:32,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:32,811 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:32,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:32,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925802165] [2023-11-06 22:11:32,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925802165] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:11:32,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965954269] [2023-11-06 22:11:32,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:11:32,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:32,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:32,813 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:11:32,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:11:32,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-06 22:11:32,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:11:32,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:11:32,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:33,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:11:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:33,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965954269] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:11:33,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:11:33,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-11-06 22:11:33,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083947244] [2023-11-06 22:11:33,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:11:33,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-06 22:11:33,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:33,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-06 22:11:33,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:11:33,388 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand has 25 states, 24 states have (on average 5.541666666666667) internal successors, (133), 25 states have internal predecessors, (133), 0 states have call successors, (0), 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 22:11:33,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:33,503 INFO L93 Difference]: Finished difference Result 139 states and 150 transitions. [2023-11-06 22:11:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:11:33,504 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.541666666666667) internal successors, (133), 25 states have internal predecessors, (133), 0 states have call successors, (0), 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 65 [2023-11-06 22:11:33,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:11:33,509 INFO L225 Difference]: With dead ends: 139 [2023-11-06 22:11:33,509 INFO L226 Difference]: Without dead ends: 138 [2023-11-06 22:11:33,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:11:33,511 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:11:33,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 104 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:11:33,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-06 22:11:33,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-11-06 22:11:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.0072992700729928) internal successors, (138), 137 states have internal predecessors, (138), 0 states have call successors, (0), 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 22:11:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2023-11-06 22:11:33,534 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 65 [2023-11-06 22:11:33,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:11:33,535 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2023-11-06 22:11:33,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.541666666666667) internal successors, (133), 25 states have internal predecessors, (133), 0 states have call successors, (0), 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 22:11:33,536 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2023-11-06 22:11:33,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-06 22:11:33,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:11:33,538 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1] [2023-11-06 22:11:33,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:33,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:33,744 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:11:33,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:11:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1468405788, now seen corresponding path program 4 times [2023-11-06 22:11:33,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:11:33,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179274475] [2023-11-06 22:11:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:11:33,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:11:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:11:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:11:34,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:11:34,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179274475] [2023-11-06 22:11:34,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179274475] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:11:34,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129289827] [2023-11-06 22:11:34,610 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:11:34,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:34,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:11:34,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:11:34,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:11:34,718 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:11:34,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:11:34,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-06 22:11:34,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:11:35,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 878 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2023-11-06 22:11:35,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:11:35,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129289827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:11:35,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:11:35,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [24] total 42 [2023-11-06 22:11:35,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39296437] [2023-11-06 22:11:35,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:11:35,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-06 22:11:35,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:11:35,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-06 22:11:35,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=398, Invalid=1324, Unknown=0, NotChecked=0, Total=1722 [2023-11-06 22:11:35,192 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:35,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:11:35,518 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2023-11-06 22:11:35,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-06 22:11:35,519 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-11-06 22:11:35,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:11:35,520 INFO L225 Difference]: With dead ends: 138 [2023-11-06 22:11:35,520 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:11:35,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=514, Invalid=1936, Unknown=0, NotChecked=0, Total=2450 [2023-11-06 22:11:35,523 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:11:35,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 124 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:11:35,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:11:35,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:11:35,524 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 22:11:35,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:11:35,525 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 137 [2023-11-06 22:11:35,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:11:35,525 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:11:35,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:11:35,526 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:11:35,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:11:35,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-06 22:11:35,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-06 22:11:35,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-06 22:11:35,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-06 22:11:35,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:11:35,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:11:35,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:11:35,840 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-11-06 22:11:35,841 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:11:35,841 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-06 22:11:35,841 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2023-11-06 22:11:35,841 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-11-06 22:11:35,841 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-11-06 22:11:35,841 INFO L902 garLoopResultBuilder]: At program point L15-2(lines 14 19) the Hoare annotation is: true [2023-11-06 22:11:35,841 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:11:35,842 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:11:35,842 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-11-06 22:11:35,842 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-06 22:11:35,842 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:11:35,842 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 26) no Hoare annotation was computed. [2023-11-06 22:11:35,842 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 28) no Hoare annotation was computed. [2023-11-06 22:11:35,842 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2023-11-06 22:11:35,842 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2023-11-06 22:11:35,843 INFO L895 garLoopResultBuilder]: At program point L24-5(lines 24 26) the Hoare annotation is: (let ((.cse0 (<= 2 |ULTIMATE.start_main_~sn~0#1|))) (or (and (<= 2 |ULTIMATE.start_main_~i~0#1|) (= 2 |ULTIMATE.start_main_~sn~0#1|)) (and .cse0 (<= 4 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sn~0#1| 6)) (and (<= |ULTIMATE.start_main_~sn~0#1| 16) .cse0 (<= 9 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~sn~0#1| 4) (<= 3 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~sn~0#1| 14) .cse0 (<= 8 |ULTIMATE.start_main_~i~0#1|)) (and (<= 5 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~sn~0#1| 8)) (and (= |ULTIMATE.start_main_~i~0#1| 1) (= |ULTIMATE.start_main_~sn~0#1| 0)) (and .cse0 (<= 6 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sn~0#1| 10)) (and (<= 7 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~sn~0#1| 12)))) [2023-11-06 22:11:35,843 INFO L899 garLoopResultBuilder]: For program point L24-6(lines 24 26) no Hoare annotation was computed. [2023-11-06 22:11:35,843 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-11-06 22:11:35,843 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-06 22:11:35,844 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-06 22:11:35,847 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2023-11-06 22:11:35,849 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:11:35,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:11:35 BoogieIcfgContainer [2023-11-06 22:11:35,866 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:11:35,866 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:11:35,866 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:11:35,867 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:11:35,867 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:11:29" (3/4) ... [2023-11-06 22:11:35,870 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:11:35,879 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-06 22:11:35,880 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:11:35,880 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:11:35,880 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:11:35,932 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:11:35,936 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:11:35,936 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:11:35,937 INFO L158 Benchmark]: Toolchain (without parser) took 7318.64ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 96.3MB in the beginning and 125.1MB in the end (delta: -28.8MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2023-11-06 22:11:35,937 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:11:35,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.27ms. Allocated memory is still 127.9MB. Free memory was 96.3MB in the beginning and 86.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:11:35,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.63ms. Allocated memory is still 127.9MB. Free memory was 86.1MB in the beginning and 84.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:11:35,938 INFO L158 Benchmark]: Boogie Preprocessor took 29.16ms. Allocated memory is still 127.9MB. Free memory was 84.8MB in the beginning and 83.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:11:35,939 INFO L158 Benchmark]: RCFGBuilder took 312.93ms. Allocated memory is still 127.9MB. Free memory was 83.3MB in the beginning and 74.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:11:35,940 INFO L158 Benchmark]: TraceAbstraction took 6637.69ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 73.8MB in the beginning and 128.2MB in the end (delta: -54.4MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2023-11-06 22:11:35,940 INFO L158 Benchmark]: Witness Printer took 70.03ms. Allocated memory is still 159.4MB. Free memory was 128.2MB in the beginning and 125.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:11:35,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.27ms. Allocated memory is still 127.9MB. Free memory was 96.3MB in the beginning and 86.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.63ms. Allocated memory is still 127.9MB. Free memory was 86.1MB in the beginning and 84.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.16ms. Allocated memory is still 127.9MB. Free memory was 84.8MB in the beginning and 83.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 312.93ms. Allocated memory is still 127.9MB. Free memory was 83.3MB in the beginning and 74.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6637.69ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 73.8MB in the beginning and 128.2MB in the end (delta: -54.4MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. * Witness Printer took 70.03ms. Allocated memory is still 159.4MB. Free memory was 128.2MB in the beginning and 125.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 9, TraceHistogramMax: 23, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 410 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 323 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 356 IncrementalHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 87 mSDtfsCounter, 356 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 434 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=8, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 13 NumberOfFragments, 86 HoareAnnotationTreeSize, 2 FomulaSimplifications, 51 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 555 NumberOfCodeBlocks, 555 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 1704 SizeOfPredicates, 10 NumberOfNonLiveVariables, 577 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 1465/3977 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 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((((((((((2 <= i) && (2 == sn)) || (((2 <= sn) && (4 <= i)) && (sn <= 6))) || (((sn <= 16) && (2 <= sn)) && (9 <= i))) || (((sn <= 4) && (3 <= i)) && (2 <= sn))) || (((sn <= 14) && (2 <= sn)) && (8 <= i))) || (((5 <= i) && (2 <= sn)) && (sn <= 8))) || ((i == 1) && (sn == 0))) || (((2 <= sn) && (6 <= i)) && (sn <= 10))) || (((7 <= i) && (2 <= sn)) && (sn <= 12))) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-06 22:11:35,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9f124-bbcf-40a5-8573-abc246e8dbe4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE