./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/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_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/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_ef457d60-69f1-40c0-9635-9dbae3896700/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 68585835b92043bfb2f3c62590e96ff685993869f8a251aecd9fe4c8aaea0e1e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:05:59,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:05:59,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:05:59,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:05:59,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:05:59,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:05:59,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:05:59,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:05:59,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:05:59,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:05:59,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:05:59,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:05:59,660 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:05:59,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:05:59,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:05:59,663 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:05:59,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:05:59,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:05:59,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:05:59,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:05:59,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:05:59,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:05:59,667 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:05:59,667 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:05:59,668 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:05:59,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:05:59,669 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:05:59,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:05:59,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:05:59,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:05:59,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:05:59,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:05:59,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:05:59,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:05:59,674 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:05:59,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:05:59,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:05:59,675 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:05:59,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:05:59,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:05:59,676 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:05:59,676 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_ef457d60-69f1-40c0-9635-9dbae3896700/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68585835b92043bfb2f3c62590e96ff685993869f8a251aecd9fe4c8aaea0e1e [2023-11-06 22:06:00,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:06:00,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:06:00,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:06:00,071 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:06:00,071 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:06:00,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i [2023-11-06 22:06:03,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:06:03,434 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:06:03,435 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i [2023-11-06 22:06:03,443 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/data/85adb4b92/e2a2aa537e9a41c684a4ae53dfc7e7ef/FLAGf951abd82 [2023-11-06 22:06:03,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/data/85adb4b92/e2a2aa537e9a41c684a4ae53dfc7e7ef [2023-11-06 22:06:03,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:06:03,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:06:03,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:06:03,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:06:03,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:06:03,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561fedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03, skipping insertion in model container [2023-11-06 22:06:03,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,501 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:06:03,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:06:03,688 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:06:03,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:06:03,729 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:06:03,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03 WrapperNode [2023-11-06 22:06:03,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:06:03,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:06:03,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:06:03,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:06:03,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,749 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,775 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 104 [2023-11-06 22:06:03,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:06:03,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:06:03,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:06:03,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:06:03,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:06:03,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:06:03,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:06:03,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:06:03,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (1/1) ... [2023-11-06 22:06:03,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:06:03,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:03,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:06:03,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:06:03,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:06:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:06:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:06:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:06:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:06:03,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:06:03,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:06:03,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:06:03,993 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:06:03,995 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:06:04,220 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:06:04,228 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:06:04,228 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-06 22:06:04,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:04 BoogieIcfgContainer [2023-11-06 22:06:04,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:06:04,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:06:04,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:06:04,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:06:04,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:06:03" (1/3) ... [2023-11-06 22:06:04,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e18a987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:04, skipping insertion in model container [2023-11-06 22:06:04,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:03" (2/3) ... [2023-11-06 22:06:04,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e18a987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:04, skipping insertion in model container [2023-11-06 22:06:04,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:04" (3/3) ... [2023-11-06 22:06:04,245 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_bubblesort_ground-1.i [2023-11-06 22:06:04,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:06:04,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-06 22:06:04,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:06:04,356 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;@53e55828, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:06:04,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-06 22:06:04,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 38 states have (on average 1.763157894736842) internal successors, (67), 54 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:04,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:06:04,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:04,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:06:04,373 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:04,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:04,384 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2023-11-06 22:06:04,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:04,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184166501] [2023-11-06 22:06:04,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:04,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:04,750 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 22:06:04,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:04,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184166501] [2023-11-06 22:06:04,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184166501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:04,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:04,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:04,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783557882] [2023-11-06 22:06:04,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:04,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:04,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:04,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:04,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:04,818 INFO L87 Difference]: Start difference. First operand has 55 states, 38 states have (on average 1.763157894736842) internal successors, (67), 54 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:04,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:04,957 INFO L93 Difference]: Finished difference Result 107 states and 131 transitions. [2023-11-06 22:06:04,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:04,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 22:06:04,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:04,974 INFO L225 Difference]: With dead ends: 107 [2023-11-06 22:06:04,975 INFO L226 Difference]: Without dead ends: 52 [2023-11-06 22:06:04,978 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 22:06:04,983 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:04,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 158 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:06:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-06 22:06:05,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-06 22:06:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 51 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2023-11-06 22:06:05,030 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 5 [2023-11-06 22:06:05,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:05,031 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2023-11-06 22:06:05,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:05,032 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2023-11-06 22:06:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:06:05,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:05,033 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:06:05,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:06:05,034 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:05,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:05,035 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2023-11-06 22:06:05,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:05,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939381681] [2023-11-06 22:06:05,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:05,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:05,186 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 22:06:05,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:05,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939381681] [2023-11-06 22:06:05,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939381681] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:05,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333718268] [2023-11-06 22:06:05,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:05,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:05,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:05,193 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:05,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:06:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:05,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:06:05,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:05,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:06:05,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333718268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:05,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:06:05,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 22:06:05,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551305186] [2023-11-06 22:06:05,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:05,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:06:05,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:05,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:06:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:06:05,401 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:05,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:05,509 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2023-11-06 22:06:05,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:06:05,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 22:06:05,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:05,513 INFO L225 Difference]: With dead ends: 52 [2023-11-06 22:06:05,514 INFO L226 Difference]: Without dead ends: 51 [2023-11-06 22:06:05,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:06:05,520 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 11 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:05,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 135 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:05,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-06 22:06:05,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-06 22:06:05,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 36 states have (on average 1.5555555555555556) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 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 22:06:05,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2023-11-06 22:06:05,532 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 9 [2023-11-06 22:06:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:05,533 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2023-11-06 22:06:05,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2023-11-06 22:06:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:06:05,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:05,534 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:06:05,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:05,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:05,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:05,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:05,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2023-11-06 22:06:05,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:05,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053911349] [2023-11-06 22:06:05,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:05,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:05,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:06:05,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:05,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053911349] [2023-11-06 22:06:05,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053911349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:05,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:05,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:05,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825578696] [2023-11-06 22:06:05,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:05,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:05,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:05,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:05,812 INFO L87 Difference]: Start difference. First operand 51 states and 56 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 22:06:05,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:05,839 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2023-11-06 22:06:05,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:05,840 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 22:06:05,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:05,843 INFO L225 Difference]: With dead ends: 51 [2023-11-06 22:06:05,843 INFO L226 Difference]: Without dead ends: 50 [2023-11-06 22:06:05,843 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 22:06:05,845 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 2 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:05,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 137 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:05,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-06 22:06:05,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2023-11-06 22:06:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.5757575757575757) internal successors, (52), 46 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2023-11-06 22:06:05,853 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 10 [2023-11-06 22:06:05,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:05,854 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2023-11-06 22:06:05,854 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 22:06:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2023-11-06 22:06:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:06:05,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:05,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:05,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:06:05,855 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:05,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:05,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1713503061, now seen corresponding path program 1 times [2023-11-06 22:06:05,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:05,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965306568] [2023-11-06 22:06:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:05,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:05,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:05,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:05,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965306568] [2023-11-06 22:06:05,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965306568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:05,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047944973] [2023-11-06 22:06:05,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:05,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:05,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:05,969 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:05,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:06:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:06:06,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:06:06,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:06:06,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047944973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:06,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:06:06,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-06 22:06:06,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279373879] [2023-11-06 22:06:06,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:06,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:06,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:06,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:06,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:06,052 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:06,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:06,088 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2023-11-06 22:06:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:06,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-06 22:06:06,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:06,090 INFO L225 Difference]: With dead ends: 47 [2023-11-06 22:06:06,090 INFO L226 Difference]: Without dead ends: 43 [2023-11-06 22:06:06,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:06,092 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:06,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 60 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:06,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-06 22:06:06,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-06 22:06:06,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:06,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2023-11-06 22:06:06,099 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 11 [2023-11-06 22:06:06,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:06,099 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2023-11-06 22:06:06,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:06,100 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2023-11-06 22:06:06,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 22:06:06,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:06,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:06,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:06,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:06,307 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:06,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:06,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1579016867, now seen corresponding path program 1 times [2023-11-06 22:06:06,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:06,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142388073] [2023-11-06 22:06:06,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:06,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:06,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:06,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142388073] [2023-11-06 22:06:06,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142388073] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:06,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032192475] [2023-11-06 22:06:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:06,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:06,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:06,414 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:06,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:06:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:06:06,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:06:06,524 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:06:06,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032192475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:06,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:06:06,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-06 22:06:06,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796753352] [2023-11-06 22:06:06,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:06,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:06,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:06,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:06,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:06,527 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 22:06:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:06,542 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2023-11-06 22:06:06,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:06,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-06 22:06:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:06,544 INFO L225 Difference]: With dead ends: 78 [2023-11-06 22:06:06,544 INFO L226 Difference]: Without dead ends: 59 [2023-11-06 22:06:06,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:06,547 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 16 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:06,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:06,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-06 22:06:06,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 51. [2023-11-06 22:06:06,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 50 states have internal predecessors, (60), 0 states have call successors, (0), 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 22:06:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2023-11-06 22:06:06,555 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 12 [2023-11-06 22:06:06,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:06,556 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2023-11-06 22:06:06,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 22:06:06,556 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2023-11-06 22:06:06,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 22:06:06,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:06,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:06,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-06 22:06:06,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:06,764 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:06,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1578987267, now seen corresponding path program 1 times [2023-11-06 22:06:06,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:06,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875906323] [2023-11-06 22:06:06,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:06,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:06,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:06,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875906323] [2023-11-06 22:06:06,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875906323] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:06,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681583000] [2023-11-06 22:06:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:06,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:06,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:06,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:06,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:06:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:06:06,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:06,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:06:06,952 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:06:06,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681583000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:06,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:06:06,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-06 22:06:06,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028559299] [2023-11-06 22:06:06,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:06,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:06,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:06,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:06,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:06,955 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 22:06:07,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:07,011 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2023-11-06 22:06:07,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:07,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-06 22:06:07,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:07,014 INFO L225 Difference]: With dead ends: 106 [2023-11-06 22:06:07,015 INFO L226 Difference]: Without dead ends: 63 [2023-11-06 22:06:07,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:07,019 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 8 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:07,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 66 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:07,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-06 22:06:07,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-06 22:06:07,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.3773584905660377) internal successors, (73), 62 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:07,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2023-11-06 22:06:07,044 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 12 [2023-11-06 22:06:07,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:07,044 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2023-11-06 22:06:07,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 22:06:07,044 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2023-11-06 22:06:07,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 22:06:07,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:07,045 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:07,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:07,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:06:07,248 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:07,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:07,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1890774580, now seen corresponding path program 1 times [2023-11-06 22:06:07,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:07,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258852314] [2023-11-06 22:06:07,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:07,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:06:07,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:07,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258852314] [2023-11-06 22:06:07,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258852314] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:07,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105214290] [2023-11-06 22:06:07,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:07,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:07,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:07,317 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:07,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:06:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:07,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:06:07,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:06:07,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:06:07,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105214290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:07,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:06:07,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-06 22:06:07,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382859498] [2023-11-06 22:06:07,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:07,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:07,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:07,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:07,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:07,396 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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 22:06:07,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:07,422 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2023-11-06 22:06:07,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:07,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-06 22:06:07,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:07,424 INFO L225 Difference]: With dead ends: 63 [2023-11-06 22:06:07,424 INFO L226 Difference]: Without dead ends: 59 [2023-11-06 22:06:07,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:07,425 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:07,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 61 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:07,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-06 22:06:07,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2023-11-06 22:06:07,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 47 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:07,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2023-11-06 22:06:07,432 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 18 [2023-11-06 22:06:07,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:07,432 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2023-11-06 22:06:07,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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 22:06:07,433 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2023-11-06 22:06:07,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-06 22:06:07,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:07,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:07,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-06 22:06:07,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:07,639 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:07,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:07,640 INFO L85 PathProgramCache]: Analyzing trace with hash 395131169, now seen corresponding path program 1 times [2023-11-06 22:06:07,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:07,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509540014] [2023-11-06 22:06:07,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:07,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:07,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:06:07,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:07,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509540014] [2023-11-06 22:06:07,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509540014] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:07,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684634852] [2023-11-06 22:06:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:07,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:07,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:07,701 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:07,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:06:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:07,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:06:07,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:07,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:06:07,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:06:07,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684634852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:07,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:06:07,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-06 22:06:07,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143207854] [2023-11-06 22:06:07,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:07,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:07,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:07,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:07,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:07,790 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 22:06:07,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:07,819 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2023-11-06 22:06:07,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:07,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-11-06 22:06:07,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:07,820 INFO L225 Difference]: With dead ends: 65 [2023-11-06 22:06:07,821 INFO L226 Difference]: Without dead ends: 64 [2023-11-06 22:06:07,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:07,823 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 16 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:07,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 70 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:07,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-06 22:06:07,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 50. [2023-11-06 22:06:07,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 49 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:07,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2023-11-06 22:06:07,840 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 21 [2023-11-06 22:06:07,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:07,841 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2023-11-06 22:06:07,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 22:06:07,841 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2023-11-06 22:06:07,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 22:06:07,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:07,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:07,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:08,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-06 22:06:08,048 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:08,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:08,049 INFO L85 PathProgramCache]: Analyzing trace with hash -635835539, now seen corresponding path program 1 times [2023-11-06 22:06:08,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:08,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067883548] [2023-11-06 22:06:08,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:08,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:06:08,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:08,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067883548] [2023-11-06 22:06:08,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067883548] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:08,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179966959] [2023-11-06 22:06:08,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:08,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:08,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:08,148 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:08,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:06:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:06:08,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:08,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:06:08,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:06:08,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179966959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:08,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:06:08,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-06 22:06:08,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437849135] [2023-11-06 22:06:08,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:08,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:08,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:08,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:08,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:08,227 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:08,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:08,246 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2023-11-06 22:06:08,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:08,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-06 22:06:08,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:08,248 INFO L225 Difference]: With dead ends: 65 [2023-11-06 22:06:08,248 INFO L226 Difference]: Without dead ends: 64 [2023-11-06 22:06:08,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:08,249 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 14 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:08,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 71 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:08,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-06 22:06:08,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 51. [2023-11-06 22:06:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 45 states have (on average 1.288888888888889) internal successors, (58), 50 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 22:06:08,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2023-11-06 22:06:08,253 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 22 [2023-11-06 22:06:08,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:08,254 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2023-11-06 22:06:08,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2023-11-06 22:06:08,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-06 22:06:08,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:08,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:08,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:08,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:08,461 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:08,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:08,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1370650903, now seen corresponding path program 1 times [2023-11-06 22:06:08,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:08,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842185867] [2023-11-06 22:06:08,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:08,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:06:08,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:08,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842185867] [2023-11-06 22:06:08,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842185867] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:08,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803919033] [2023-11-06 22:06:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:08,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:08,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:08,539 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:08,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:06:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:06:08,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:06:08,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:06:08,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:06:08,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803919033] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:06:08,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:06:08,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-06 22:06:08,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851249846] [2023-11-06 22:06:08,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:06:08,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:06:08,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:08,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:06:08,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:06:08,713 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 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 22:06:08,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:08,770 INFO L93 Difference]: Finished difference Result 103 states and 118 transitions. [2023-11-06 22:06:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:06:08,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-06 22:06:08,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:08,771 INFO L225 Difference]: With dead ends: 103 [2023-11-06 22:06:08,771 INFO L226 Difference]: Without dead ends: 59 [2023-11-06 22:06:08,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:06:08,773 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 10 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:08,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 189 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:08,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-06 22:06:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-06 22:06:08,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 58 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 22:06:08,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2023-11-06 22:06:08,786 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 25 [2023-11-06 22:06:08,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:08,788 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2023-11-06 22:06:08,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 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 22:06:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2023-11-06 22:06:08,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-06 22:06:08,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:08,794 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:08,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:09,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:06:09,001 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:09,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:09,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2024267233, now seen corresponding path program 2 times [2023-11-06 22:06:09,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:09,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197588949] [2023-11-06 22:06:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:09,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:09,052 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:06:09,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:09,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197588949] [2023-11-06 22:06:09,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197588949] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:09,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85158814] [2023-11-06 22:06:09,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:06:09,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:09,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:09,055 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:09,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:06:09,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:06:09,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:06:09,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:06:09,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-06 22:06:09,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:06:09,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85158814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:09,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:06:09,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-06 22:06:09,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061579839] [2023-11-06 22:06:09,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:09,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:09,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:09,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:09,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:09,154 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 22:06:09,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:09,203 INFO L93 Difference]: Finished difference Result 98 states and 108 transitions. [2023-11-06 22:06:09,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:09,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 33 [2023-11-06 22:06:09,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:09,206 INFO L225 Difference]: With dead ends: 98 [2023-11-06 22:06:09,206 INFO L226 Difference]: Without dead ends: 80 [2023-11-06 22:06:09,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:06:09,208 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 29 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:09,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 103 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:09,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-06 22:06:09,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 60. [2023-11-06 22:06:09,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 59 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:09,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2023-11-06 22:06:09,214 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 33 [2023-11-06 22:06:09,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:09,215 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2023-11-06 22:06:09,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 22:06:09,215 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2023-11-06 22:06:09,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-06 22:06:09,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:09,219 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:09,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:09,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:09,425 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:09,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:09,426 INFO L85 PathProgramCache]: Analyzing trace with hash -297891803, now seen corresponding path program 1 times [2023-11-06 22:06:09,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:09,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748659262] [2023-11-06 22:06:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:09,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:06:09,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:09,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748659262] [2023-11-06 22:06:09,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748659262] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:09,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941957479] [2023-11-06 22:06:09,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:09,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:09,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:09,496 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:09,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:06:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:09,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:06:09,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:06:09,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:06:09,797 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:06:09,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941957479] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:06:09,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:06:09,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 18 [2023-11-06 22:06:09,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090314743] [2023-11-06 22:06:09,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:06:09,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-06 22:06:09,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:09,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-06 22:06:09,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:06:09,803 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:10,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:10,035 INFO L93 Difference]: Finished difference Result 148 states and 170 transitions. [2023-11-06 22:06:10,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:06:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-06 22:06:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:10,039 INFO L225 Difference]: With dead ends: 148 [2023-11-06 22:06:10,039 INFO L226 Difference]: Without dead ends: 103 [2023-11-06 22:06:10,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:06:10,040 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 44 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:10,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 244 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:06:10,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-06 22:06:10,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 89. [2023-11-06 22:06:10,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 83 states have (on average 1.1686746987951808) internal successors, (97), 88 states have internal predecessors, (97), 0 states have call successors, (0), 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 22:06:10,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2023-11-06 22:06:10,047 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 35 [2023-11-06 22:06:10,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:10,047 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2023-11-06 22:06:10,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:10,048 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2023-11-06 22:06:10,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-06 22:06:10,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:10,051 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:10,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:10,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:10,262 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:10,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:10,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1765397658, now seen corresponding path program 2 times [2023-11-06 22:06:10,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:10,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221552490] [2023-11-06 22:06:10,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:10,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-06 22:06:10,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:10,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221552490] [2023-11-06 22:06:10,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221552490] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:10,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835254715] [2023-11-06 22:06:10,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:06:10,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:10,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:10,394 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:10,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:06:10,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:06:10,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:06:10,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:06:10,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:10,512 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-06 22:06:10,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:06:10,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835254715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:10,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:06:10,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-06 22:06:10,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625119638] [2023-11-06 22:06:10,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:10,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:10,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:10,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:10,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:06:10,515 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 22:06:10,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:10,586 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2023-11-06 22:06:10,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:06:10,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 57 [2023-11-06 22:06:10,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:10,588 INFO L225 Difference]: With dead ends: 102 [2023-11-06 22:06:10,588 INFO L226 Difference]: Without dead ends: 101 [2023-11-06 22:06:10,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:06:10,589 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 33 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:10,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 130 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:10,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-06 22:06:10,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 95. [2023-11-06 22:06:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 94 states have internal predecessors, (105), 0 states have call successors, (0), 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 22:06:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2023-11-06 22:06:10,596 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 57 [2023-11-06 22:06:10,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:10,597 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2023-11-06 22:06:10,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 22:06:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2023-11-06 22:06:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:06:10,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:10,598 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:10,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:10,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:10,804 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:10,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1107247590, now seen corresponding path program 1 times [2023-11-06 22:06:10,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:10,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406401503] [2023-11-06 22:06:10,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:10,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,929 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-06 22:06:10,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:10,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406401503] [2023-11-06 22:06:10,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406401503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:10,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:10,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:10,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703108868] [2023-11-06 22:06:10,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:10,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:10,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:10,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:10,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:10,933 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 22:06:10,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:10,954 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2023-11-06 22:06:10,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:10,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 58 [2023-11-06 22:06:10,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:10,957 INFO L225 Difference]: With dead ends: 95 [2023-11-06 22:06:10,957 INFO L226 Difference]: Without dead ends: 94 [2023-11-06 22:06:10,958 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 22:06:10,958 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:10,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 106 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:10,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-06 22:06:10,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-11-06 22:06:10,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 89 states have (on average 1.1573033707865168) internal successors, (103), 93 states have internal predecessors, (103), 0 states have call successors, (0), 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 22:06:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 103 transitions. [2023-11-06 22:06:10,966 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 103 transitions. Word has length 58 [2023-11-06 22:06:10,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:10,968 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 103 transitions. [2023-11-06 22:06:10,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 22:06:10,968 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 103 transitions. [2023-11-06 22:06:10,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-06 22:06:10,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:10,969 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:10,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:06:10,970 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:10,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:10,971 INFO L85 PathProgramCache]: Analyzing trace with hash 664236496, now seen corresponding path program 1 times [2023-11-06 22:06:10,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:10,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687220057] [2023-11-06 22:06:10,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:10,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-06 22:06:11,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:11,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687220057] [2023-11-06 22:06:11,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687220057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:11,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:11,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:11,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638590879] [2023-11-06 22:06:11,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:11,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:11,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:11,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:11,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:11,095 INFO L87 Difference]: Start difference. First operand 94 states and 103 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 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 22:06:11,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:11,132 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2023-11-06 22:06:11,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:11,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 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 61 [2023-11-06 22:06:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:11,133 INFO L225 Difference]: With dead ends: 99 [2023-11-06 22:06:11,134 INFO L226 Difference]: Without dead ends: 97 [2023-11-06 22:06:11,134 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 22:06:11,135 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:11,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 99 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:11,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-06 22:06:11,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-11-06 22:06:11,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 92 states have (on average 1.1521739130434783) internal successors, (106), 96 states have internal predecessors, (106), 0 states have call successors, (0), 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 22:06:11,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2023-11-06 22:06:11,141 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 61 [2023-11-06 22:06:11,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:11,142 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2023-11-06 22:06:11,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 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 22:06:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2023-11-06 22:06:11,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:06:11,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:11,143 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:11,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:06:11,144 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:11,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:11,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1355265286, now seen corresponding path program 1 times [2023-11-06 22:06:11,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:11,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033735075] [2023-11-06 22:06:11,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:11,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-06 22:06:11,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:11,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033735075] [2023-11-06 22:06:11,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033735075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:11,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890537254] [2023-11-06 22:06:11,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:11,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:11,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:11,262 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:11,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:06:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:11,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:06:11,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 22:06:11,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:06:12,105 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 22:06:12,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890537254] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:06:12,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:06:12,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 17, 17] total 35 [2023-11-06 22:06:12,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142997570] [2023-11-06 22:06:12,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:06:12,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-06 22:06:12,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:12,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-06 22:06:12,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190 [2023-11-06 22:06:12,109 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 22:06:12,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:12,601 INFO L93 Difference]: Finished difference Result 210 states and 238 transitions. [2023-11-06 22:06:12,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-06 22:06:12,602 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 64 [2023-11-06 22:06:12,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:12,603 INFO L225 Difference]: With dead ends: 210 [2023-11-06 22:06:12,603 INFO L226 Difference]: Without dead ends: 144 [2023-11-06 22:06:12,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=633, Invalid=1817, Unknown=0, NotChecked=0, Total=2450 [2023-11-06 22:06:12,607 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 99 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:12,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 343 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:06:12,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-06 22:06:12,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 131. [2023-11-06 22:06:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 126 states have (on average 1.1111111111111112) internal successors, (140), 130 states have internal predecessors, (140), 0 states have call successors, (0), 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 22:06:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 140 transitions. [2023-11-06 22:06:12,618 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 140 transitions. Word has length 64 [2023-11-06 22:06:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:12,618 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 140 transitions. [2023-11-06 22:06:12,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 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 22:06:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 140 transitions. [2023-11-06 22:06:12,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-06 22:06:12,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:12,620 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:12,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:12,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-06 22:06:12,826 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:12,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:12,827 INFO L85 PathProgramCache]: Analyzing trace with hash 611850248, now seen corresponding path program 1 times [2023-11-06 22:06:12,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:12,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043744364] [2023-11-06 22:06:12,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:12,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:12,944 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2023-11-06 22:06:12,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:12,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043744364] [2023-11-06 22:06:12,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043744364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:12,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:12,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:06:12,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250760663] [2023-11-06 22:06:12,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:12,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:12,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:12,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:12,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:12,952 INFO L87 Difference]: Start difference. First operand 131 states and 140 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:12,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:12,970 INFO L93 Difference]: Finished difference Result 131 states and 140 transitions. [2023-11-06 22:06:12,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:12,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-11-06 22:06:12,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:12,972 INFO L225 Difference]: With dead ends: 131 [2023-11-06 22:06:12,972 INFO L226 Difference]: Without dead ends: 130 [2023-11-06 22:06:12,972 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 22:06:12,973 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 57 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 22:06:12,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 57 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:12,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-06 22:06:12,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-11-06 22:06:12,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 126 states have (on average 1.1031746031746033) internal successors, (139), 129 states have internal predecessors, (139), 0 states have call successors, (0), 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 22:06:12,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 139 transitions. [2023-11-06 22:06:12,983 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 139 transitions. Word has length 97 [2023-11-06 22:06:12,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:12,984 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 139 transitions. [2023-11-06 22:06:12,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:12,984 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 139 transitions. [2023-11-06 22:06:12,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 22:06:12,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:12,986 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:12,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:06:12,986 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:12,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:12,987 INFO L85 PathProgramCache]: Analyzing trace with hash -210349970, now seen corresponding path program 1 times [2023-11-06 22:06:12,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:12,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860960761] [2023-11-06 22:06:12,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:12,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2023-11-06 22:06:13,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:13,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860960761] [2023-11-06 22:06:13,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860960761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:13,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:13,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:13,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439071108] [2023-11-06 22:06:13,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:13,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:13,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:13,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:13,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:13,116 INFO L87 Difference]: Start difference. First operand 130 states and 139 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:13,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:13,160 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2023-11-06 22:06:13,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:13,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-11-06 22:06:13,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:13,161 INFO L225 Difference]: With dead ends: 130 [2023-11-06 22:06:13,161 INFO L226 Difference]: Without dead ends: 128 [2023-11-06 22:06:13,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:13,162 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 13 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:13,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 83 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:13,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-06 22:06:13,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2023-11-06 22:06:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 124 states have (on average 1.0887096774193548) internal successors, (135), 125 states have internal predecessors, (135), 0 states have call successors, (0), 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 22:06:13,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 135 transitions. [2023-11-06 22:06:13,171 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 135 transitions. Word has length 100 [2023-11-06 22:06:13,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:13,171 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 135 transitions. [2023-11-06 22:06:13,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:13,172 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 135 transitions. [2023-11-06 22:06:13,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-06 22:06:13,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:13,173 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:13,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:06:13,174 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:13,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:13,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2069085670, now seen corresponding path program 1 times [2023-11-06 22:06:13,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:13,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147942981] [2023-11-06 22:06:13,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:13,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2023-11-06 22:06:13,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:13,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147942981] [2023-11-06 22:06:13,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147942981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:13,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:13,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:13,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38809765] [2023-11-06 22:06:13,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:13,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:13,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:13,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:13,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:13,293 INFO L87 Difference]: Start difference. First operand 126 states and 135 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 22:06:13,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:13,317 INFO L93 Difference]: Finished difference Result 126 states and 135 transitions. [2023-11-06 22:06:13,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:13,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 101 [2023-11-06 22:06:13,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:13,319 INFO L225 Difference]: With dead ends: 126 [2023-11-06 22:06:13,319 INFO L226 Difference]: Without dead ends: 125 [2023-11-06 22:06:13,319 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 22:06:13,320 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 9 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 83 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 22:06:13,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 83 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:13,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-06 22:06:13,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 122. [2023-11-06 22:06:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.0826446280991735) internal successors, (131), 121 states have internal predecessors, (131), 0 states have call successors, (0), 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 22:06:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 131 transitions. [2023-11-06 22:06:13,328 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 131 transitions. Word has length 101 [2023-11-06 22:06:13,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:13,329 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 131 transitions. [2023-11-06 22:06:13,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 22:06:13,329 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 131 transitions. [2023-11-06 22:06:13,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-06 22:06:13,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:13,330 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:13,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-06 22:06:13,331 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:13,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:13,331 INFO L85 PathProgramCache]: Analyzing trace with hash -281375886, now seen corresponding path program 1 times [2023-11-06 22:06:13,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:13,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672418731] [2023-11-06 22:06:13,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:13,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,495 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-11-06 22:06:13,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:13,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672418731] [2023-11-06 22:06:13,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672418731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:13,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015223237] [2023-11-06 22:06:13,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:13,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:13,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:13,502 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:13,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:06:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:13,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-06 22:06:13,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-06 22:06:14,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:06:15,448 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-06 22:06:15,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015223237] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:06:15,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:06:15,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2023-11-06 22:06:15,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777047539] [2023-11-06 22:06:15,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:06:15,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-11-06 22:06:15,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:15,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-11-06 22:06:15,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1065, Invalid=3357, Unknown=0, NotChecked=0, Total=4422 [2023-11-06 22:06:15,454 INFO L87 Difference]: Start difference. First operand 122 states and 131 transitions. Second operand has 67 states, 67 states have (on average 2.5671641791044775) internal successors, (172), 67 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:16,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:16,693 INFO L93 Difference]: Finished difference Result 275 states and 314 transitions. [2023-11-06 22:06:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-06 22:06:16,694 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.5671641791044775) internal successors, (172), 67 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-11-06 22:06:16,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:16,696 INFO L225 Difference]: With dead ends: 275 [2023-11-06 22:06:16,696 INFO L226 Difference]: Without dead ends: 216 [2023-11-06 22:06:16,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1850 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2536, Invalid=6776, Unknown=0, NotChecked=0, Total=9312 [2023-11-06 22:06:16,703 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 182 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:16,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 198 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:06:16,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-06 22:06:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 202. [2023-11-06 22:06:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.0597014925373134) internal successors, (213), 201 states have internal predecessors, (213), 0 states have call successors, (0), 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 22:06:16,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 213 transitions. [2023-11-06 22:06:16,719 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 213 transitions. Word has length 102 [2023-11-06 22:06:16,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:16,720 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 213 transitions. [2023-11-06 22:06:16,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.5671641791044775) internal successors, (172), 67 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:16,721 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 213 transitions. [2023-11-06 22:06:16,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-06 22:06:16,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:16,726 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:16,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:16,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:16,933 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-06 22:06:16,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:16,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2088378687, now seen corresponding path program 2 times [2023-11-06 22:06:16,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:16,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166379527] [2023-11-06 22:06:16,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:16,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:17,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 1901 trivial. 0 not checked. [2023-11-06 22:06:17,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:17,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166379527] [2023-11-06 22:06:17,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166379527] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:06:17,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716902712] [2023-11-06 22:06:17,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:06:17,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:17,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:17,278 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:06:17,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:06:17,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:06:17,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:06:17,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:06:17,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:06:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1916 trivial. 0 not checked. [2023-11-06 22:06:17,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:06:17,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716902712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:17,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:06:17,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-11-06 22:06:17,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178093723] [2023-11-06 22:06:17,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:17,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:17,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:17,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:17,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:06:17,460 INFO L87 Difference]: Start difference. First operand 202 states and 213 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 22:06:17,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:17,507 INFO L93 Difference]: Finished difference Result 202 states and 213 transitions. [2023-11-06 22:06:17,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:06:17,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 172 [2023-11-06 22:06:17,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:17,508 INFO L225 Difference]: With dead ends: 202 [2023-11-06 22:06:17,509 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:06:17,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:06:17,512 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 20 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:17,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 103 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:17,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:06:17,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:06:17,513 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 22:06:17,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:06:17,514 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2023-11-06 22:06:17,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:17,514 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:06:17,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 22:06:17,514 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:06:17,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:06:17,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-06 22:06:17,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-06 22:06:17,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-06 22:06:17,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-06 22:06:17,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-11-06 22:06:17,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-11-06 22:06:17,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-11-06 22:06:17,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-11-06 22:06:17,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-06 22:06:17,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-06 22:06:17,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-06 22:06:17,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-06 22:06:17,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-06 22:06:17,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-06 22:06:17,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-06 22:06:17,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-06 22:06:17,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:06:17,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:06:17,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:06:17,840 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-06 22:06:17,841 INFO L899 garLoopResultBuilder]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2023-11-06 22:06:17,841 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-06 22:06:17,841 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2023-11-06 22:06:17,841 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-06 22:06:17,842 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 22) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~j~0#1| 0)) [2023-11-06 22:06:17,842 INFO L899 garLoopResultBuilder]: For program point L19-6(lines 19 22) no Hoare annotation was computed. [2023-11-06 22:06:17,842 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 16 46) the Hoare annotation is: true [2023-11-06 22:06:17,842 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-06 22:06:17,843 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-06 22:06:17,843 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:06:17,844 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 36) the Hoare annotation is: (< 0 |ULTIMATE.start_main_~i~0#1|) [2023-11-06 22:06:17,844 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 36) no Hoare annotation was computed. [2023-11-06 22:06:17,844 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-06 22:06:17,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-06 22:06:17,845 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-06 22:06:17,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-06 22:06:17,845 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-11-06 22:06:17,845 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-11-06 22:06:17,846 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 34) no Hoare annotation was computed. [2023-11-06 22:06:17,846 INFO L899 garLoopResultBuilder]: For program point L29-4(lines 29 34) no Hoare annotation was computed. [2023-11-06 22:06:17,846 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-06 22:06:17,846 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-11-06 22:06:17,846 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-06 22:06:17,846 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2023-11-06 22:06:17,847 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:06:17,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-06 22:06:17,847 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-11-06 22:06:17,847 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2023-11-06 22:06:17,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-06 22:06:17,847 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2023-11-06 22:06:17,848 INFO L899 garLoopResultBuilder]: For program point L40-3(line 40) no Hoare annotation was computed. [2023-11-06 22:06:17,848 INFO L899 garLoopResultBuilder]: For program point L40-4(line 40) no Hoare annotation was computed. [2023-11-06 22:06:17,848 INFO L895 garLoopResultBuilder]: At program point L40-5(lines 40 44) the Hoare annotation is: (or (= |ULTIMATE.start_main_~x~0#1| 0) (and (<= 0 (+ 2147483649 |ULTIMATE.start_main_~x~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|))) [2023-11-06 22:06:17,848 INFO L899 garLoopResultBuilder]: For program point L40-6(lines 40 44) no Hoare annotation was computed. [2023-11-06 22:06:17,848 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-11-06 22:06:17,849 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:06:17,849 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2023-11-06 22:06:17,849 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-06 22:06:17,849 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-06 22:06:17,849 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-06 22:06:17,849 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-06 22:06:17,850 INFO L899 garLoopResultBuilder]: For program point L41-4(lines 41 43) no Hoare annotation was computed. [2023-11-06 22:06:17,851 INFO L899 garLoopResultBuilder]: For program point L41-5(line 41) no Hoare annotation was computed. [2023-11-06 22:06:17,851 INFO L899 garLoopResultBuilder]: For program point L41-6(line 41) no Hoare annotation was computed. [2023-11-06 22:06:17,851 INFO L895 garLoopResultBuilder]: At program point L41-7(lines 41 43) the Hoare annotation is: (and (<= 0 (+ 2147483649 |ULTIMATE.start_main_~x~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| 99999) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) [2023-11-06 22:06:17,851 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:06:17,851 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-06 22:06:17,852 INFO L902 garLoopResultBuilder]: At program point L25-2(lines 25 37) the Hoare annotation is: true [2023-11-06 22:06:17,852 INFO L899 garLoopResultBuilder]: For program point L25-3(lines 25 37) no Hoare annotation was computed. [2023-11-06 22:06:17,852 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-06 22:06:17,852 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-06 22:06:17,852 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-06 22:06:17,853 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-06 22:06:17,853 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-11-06 22:06:17,857 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:17,860 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:06:17,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:06:17 BoogieIcfgContainer [2023-11-06 22:06:17,880 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:06:17,881 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:06:17,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:06:17,881 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:06:17,882 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:04" (3/4) ... [2023-11-06 22:06:17,887 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:06:17,900 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 22:06:17,901 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:06:17,901 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:06:17,901 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:06:17,998 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:06:18,000 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:06:18,001 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:06:18,001 INFO L158 Benchmark]: Toolchain (without parser) took 14536.50ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 85.3MB in the beginning and 58.9MB in the end (delta: 26.4MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. [2023-11-06 22:06:18,002 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:06:18,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.03ms. Allocated memory is still 130.0MB. Free memory was 85.3MB in the beginning and 74.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:06:18,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.82ms. Allocated memory is still 130.0MB. Free memory was 74.4MB in the beginning and 72.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:06:18,008 INFO L158 Benchmark]: Boogie Preprocessor took 31.27ms. Allocated memory is still 130.0MB. Free memory was 72.7MB in the beginning and 71.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:06:18,009 INFO L158 Benchmark]: RCFGBuilder took 422.34ms. Allocated memory is still 130.0MB. Free memory was 71.3MB in the beginning and 58.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:06:18,009 INFO L158 Benchmark]: TraceAbstraction took 13646.30ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 58.0MB in the beginning and 63.1MB in the end (delta: -5.1MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2023-11-06 22:06:18,010 INFO L158 Benchmark]: Witness Printer took 119.87ms. Allocated memory is still 188.7MB. Free memory was 63.1MB in the beginning and 58.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:06:18,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.03ms. Allocated memory is still 130.0MB. Free memory was 85.3MB in the beginning and 74.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.82ms. Allocated memory is still 130.0MB. Free memory was 74.4MB in the beginning and 72.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.27ms. Allocated memory is still 130.0MB. Free memory was 72.7MB in the beginning and 71.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 422.34ms. Allocated memory is still 130.0MB. Free memory was 71.3MB in the beginning and 58.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13646.30ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 58.0MB in the beginning and 63.1MB in the end (delta: -5.1MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. * Witness Printer took 119.87ms. Allocated memory is still 188.7MB. Free memory was 63.1MB in the beginning and 58.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: 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, 55 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 13.5s, OverallIterations: 21, TraceHistogramMax: 31, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 552 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 552 mSDsluCounter, 2601 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1810 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1062 IncrementalHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 791 mSDtfsCounter, 1062 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 956 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2346 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=20, InterpolantAutomatonStates: 192, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 121 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 52 NumberOfFragments, 39 HoareAnnotationTreeSize, 6 FomulaSimplifications, 366 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 1618 NumberOfCodeBlocks, 1396 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 1805 ConstructedInterpolants, 0 QuantifiedInterpolants, 2635 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1286 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 39 InterpolantComputations, 17 PerfectInterpolantSequences, 6266/7401 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 16 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: (((0 <= (2147483649 + x)) && (x <= 99999)) && (0 <= (y + 2147483648))) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((0 < j) || (j == 0)) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((x == 0) || ((0 <= (2147483649 + x)) && (1 <= y))) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (0 < i) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:06:18,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef457d60-69f1-40c0-9635-9dbae3896700/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