./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 68bb6d7d6818d105c8d36601291f0fbd6a765091c35c37006c1280fceb3f620a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:01:34,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:01:34,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:01:34,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:01:34,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:01:34,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:01:34,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:01:34,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:01:34,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:01:34,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:01:34,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:01:34,705 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:01:34,705 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:01:34,707 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:01:34,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:01:34,708 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:01:34,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:01:34,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:01:34,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:01:34,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:01:34,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:01:34,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:01:34,712 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:01:34,714 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:01:34,715 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:01:34,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:01:34,715 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:01:34,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:01:34,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:01:34,717 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:01:34,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:34,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:01:34,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:01:34,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:01:34,720 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:01:34,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:01:34,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:01:34,745 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:01:34,746 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:01:34,746 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:01:34,746 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:01:34,747 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_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68bb6d7d6818d105c8d36601291f0fbd6a765091c35c37006c1280fceb3f620a [2023-11-19 08:01:35,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:01:35,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:01:35,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:01:35,110 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:01:35,110 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:01:35,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c [2023-11-19 08:01:38,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:01:38,374 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:01:38,374 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c [2023-11-19 08:01:38,382 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/data/e3a12fdfc/4c86e21ac40f4af69440c7be8d6c7737/FLAG6167c9639 [2023-11-19 08:01:38,396 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/data/e3a12fdfc/4c86e21ac40f4af69440c7be8d6c7737 [2023-11-19 08:01:38,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:01:38,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:01:38,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:38,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:01:38,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:01:38,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@535ad3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38, skipping insertion in model container [2023-11-19 08:01:38,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,432 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:01:38,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:38,629 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:01:38,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:38,666 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:01:38,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38 WrapperNode [2023-11-19 08:01:38,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:38,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:38,667 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:01:38,667 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:01:38,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,707 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 121 [2023-11-19 08:01:38,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:38,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:01:38,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:01:38,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:01:38,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,720 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,720 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:01:38,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:01:38,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:01:38,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:01:38,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (1/1) ... [2023-11-19 08:01:38,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:38,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:38,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:38,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:01:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:01:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:01:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:01:38,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:01:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 08:01:38,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 08:01:38,919 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:01:38,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:01:39,357 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:01:39,367 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:01:39,367 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:01:39,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:39 BoogieIcfgContainer [2023-11-19 08:01:39,372 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:01:39,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:01:39,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:01:39,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:01:39,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:01:38" (1/3) ... [2023-11-19 08:01:39,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb8ee08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:39, skipping insertion in model container [2023-11-19 08:01:39,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:38" (2/3) ... [2023-11-19 08:01:39,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb8ee08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:39, skipping insertion in model container [2023-11-19 08:01:39,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:39" (3/3) ... [2023-11-19 08:01:39,383 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound20.c [2023-11-19 08:01:39,404 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:01:39,405 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2023-11-19 08:01:39,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:01:39,467 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=LoopHeads, 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;@688097d6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:01:39,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-19 08:01:39,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 75 states have (on average 1.8666666666666667) internal successors, (140), 135 states have internal predecessors, (140), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:01:39,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 08:01:39,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:39,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 08:01:39,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:39,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:39,484 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2023-11-19 08:01:39,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:39,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989136775] [2023-11-19 08:01:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:39,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:39,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:39,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:39,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989136775] [2023-11-19 08:01:39,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989136775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:39,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:39,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:39,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439439558] [2023-11-19 08:01:39,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:39,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:39,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:39,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:39,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:39,775 INFO L87 Difference]: Start difference. First operand has 139 states, 75 states have (on average 1.8666666666666667) internal successors, (140), 135 states have internal predecessors, (140), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:39,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:39,990 INFO L93 Difference]: Finished difference Result 264 states and 279 transitions. [2023-11-19 08:01:39,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:39,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2023-11-19 08:01:39,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:40,002 INFO L225 Difference]: With dead ends: 264 [2023-11-19 08:01:40,003 INFO L226 Difference]: Without dead ends: 128 [2023-11-19 08:01:40,007 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 [2023-11-19 08:01:40,011 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:40,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 85 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:40,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-19 08:01:40,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-11-19 08:01:40,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 70 states have (on average 1.8285714285714285) internal successors, (128), 125 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:40,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 130 transitions. [2023-11-19 08:01:40,058 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 130 transitions. Word has length 3 [2023-11-19 08:01:40,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:40,058 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 130 transitions. [2023-11-19 08:01:40,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:40,059 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 130 transitions. [2023-11-19 08:01:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 08:01:40,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:40,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 08:01:40,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:01:40,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:40,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:40,062 INFO L85 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2023-11-19 08:01:40,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:40,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315438867] [2023-11-19 08:01:40,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:40,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:40,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:40,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:40,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315438867] [2023-11-19 08:01:40,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315438867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:40,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:40,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:40,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654150710] [2023-11-19 08:01:40,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:40,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:40,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:40,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:40,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:40,102 INFO L87 Difference]: Start difference. First operand 128 states and 130 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:40,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:40,189 INFO L93 Difference]: Finished difference Result 128 states and 130 transitions. [2023-11-19 08:01:40,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:40,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 08:01:40,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:40,192 INFO L225 Difference]: With dead ends: 128 [2023-11-19 08:01:40,192 INFO L226 Difference]: Without dead ends: 124 [2023-11-19 08:01:40,192 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 [2023-11-19 08:01:40,194 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 118 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:40,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 76 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-19 08:01:40,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-11-19 08:01:40,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 70 states have (on average 1.7714285714285714) internal successors, (124), 121 states have internal predecessors, (124), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:40,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 126 transitions. [2023-11-19 08:01:40,208 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 126 transitions. Word has length 4 [2023-11-19 08:01:40,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:40,208 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 126 transitions. [2023-11-19 08:01:40,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:40,209 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 126 transitions. [2023-11-19 08:01:40,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 08:01:40,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:40,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:01:40,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:01:40,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:40,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:40,211 INFO L85 PathProgramCache]: Analyzing trace with hash 28692770, now seen corresponding path program 1 times [2023-11-19 08:01:40,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:40,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942894874] [2023-11-19 08:01:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:40,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:40,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:40,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:40,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942894874] [2023-11-19 08:01:40,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942894874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:40,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:40,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:40,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033429619] [2023-11-19 08:01:40,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:40,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:40,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:40,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:40,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:40,261 INFO L87 Difference]: Start difference. First operand 124 states and 126 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-19 08:01:40,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:40,373 INFO L93 Difference]: Finished difference Result 124 states and 126 transitions. [2023-11-19 08:01:40,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:40,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2023-11-19 08:01:40,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:40,379 INFO L225 Difference]: With dead ends: 124 [2023-11-19 08:01:40,380 INFO L226 Difference]: Without dead ends: 123 [2023-11-19 08:01:40,381 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 [2023-11-19 08:01:40,383 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 116 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:40,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 62 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:40,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-19 08:01:40,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-11-19 08:01:40,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 120 states have internal predecessors, (123), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:40,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 125 transitions. [2023-11-19 08:01:40,404 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 125 transitions. Word has length 5 [2023-11-19 08:01:40,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:40,404 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 125 transitions. [2023-11-19 08:01:40,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-19 08:01:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 125 transitions. [2023-11-19 08:01:40,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 08:01:40,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:40,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:01:40,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:01:40,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:40,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:40,408 INFO L85 PathProgramCache]: Analyzing trace with hash 889475910, now seen corresponding path program 1 times [2023-11-19 08:01:40,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:40,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338853629] [2023-11-19 08:01:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:40,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:40,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:40,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338853629] [2023-11-19 08:01:40,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338853629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:40,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:40,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:40,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492197033] [2023-11-19 08:01:40,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:40,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:40,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:40,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:40,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:40,508 INFO L87 Difference]: Start difference. First operand 123 states and 125 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:40,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:40,616 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2023-11-19 08:01:40,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:40,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2023-11-19 08:01:40,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:40,622 INFO L225 Difference]: With dead ends: 123 [2023-11-19 08:01:40,622 INFO L226 Difference]: Without dead ends: 122 [2023-11-19 08:01:40,623 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 [2023-11-19 08:01:40,625 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 114 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:40,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 62 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-19 08:01:40,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-11-19 08:01:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.7428571428571429) internal successors, (122), 119 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:40,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2023-11-19 08:01:40,642 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 6 [2023-11-19 08:01:40,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:40,643 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2023-11-19 08:01:40,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:40,643 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2023-11-19 08:01:40,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 08:01:40,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:40,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:40,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:01:40,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:40,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:40,647 INFO L85 PathProgramCache]: Analyzing trace with hash 87859048, now seen corresponding path program 1 times [2023-11-19 08:01:40,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:40,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675574182] [2023-11-19 08:01:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:40,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:40,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:40,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675574182] [2023-11-19 08:01:40,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675574182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:40,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:40,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:40,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421733016] [2023-11-19 08:01:40,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:40,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:40,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:40,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:40,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:40,804 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:40,850 INFO L93 Difference]: Finished difference Result 170 states and 172 transitions. [2023-11-19 08:01:40,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:40,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 08:01:40,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:40,852 INFO L225 Difference]: With dead ends: 170 [2023-11-19 08:01:40,852 INFO L226 Difference]: Without dead ends: 126 [2023-11-19 08:01:40,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:40,860 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 4 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:40,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 351 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:40,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-19 08:01:40,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-11-19 08:01:40,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 74 states have (on average 1.7027027027027026) internal successors, (126), 123 states have internal predecessors, (126), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:40,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 128 transitions. [2023-11-19 08:01:40,886 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 128 transitions. Word has length 8 [2023-11-19 08:01:40,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:40,887 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 128 transitions. [2023-11-19 08:01:40,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:40,887 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 128 transitions. [2023-11-19 08:01:40,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 08:01:40,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:40,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:40,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:01:40,889 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:40,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:40,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1773864523, now seen corresponding path program 1 times [2023-11-19 08:01:40,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:40,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200622815] [2023-11-19 08:01:40,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:40,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:40,915 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:40,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345745465] [2023-11-19 08:01:40,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:40,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:40,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:40,918 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:40,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:01:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:40,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:40,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:41,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:41,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:41,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200622815] [2023-11-19 08:01:41,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:41,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345745465] [2023-11-19 08:01:41,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345745465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:41,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:41,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:41,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131056642] [2023-11-19 08:01:41,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:41,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:41,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:41,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:41,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:41,021 INFO L87 Difference]: Start difference. First operand 126 states and 128 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) [2023-11-19 08:01:41,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:41,072 INFO L93 Difference]: Finished difference Result 232 states and 236 transitions. [2023-11-19 08:01:41,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:41,074 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 [2023-11-19 08:01:41,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:41,076 INFO L225 Difference]: With dead ends: 232 [2023-11-19 08:01:41,082 INFO L226 Difference]: Without dead ends: 226 [2023-11-19 08:01:41,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:41,089 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 99 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:41,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 221 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:41,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-19 08:01:41,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 150. [2023-11-19 08:01:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 97 states have (on average 1.690721649484536) internal successors, (164), 146 states have internal predecessors, (164), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:01:41,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 168 transitions. [2023-11-19 08:01:41,113 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 168 transitions. Word has length 11 [2023-11-19 08:01:41,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:41,114 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 168 transitions. [2023-11-19 08:01:41,114 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) [2023-11-19 08:01:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 168 transitions. [2023-11-19 08:01:41,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 08:01:41,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:41,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:41,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:41,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:41,321 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:41,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:41,322 INFO L85 PathProgramCache]: Analyzing trace with hash -418208051, now seen corresponding path program 1 times [2023-11-19 08:01:41,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:41,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065437759] [2023-11-19 08:01:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:41,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:41,330 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:41,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693362889] [2023-11-19 08:01:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:41,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:41,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:41,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:41,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:01:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:41,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:41,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:41,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:41,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:41,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:41,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065437759] [2023-11-19 08:01:41,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:41,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693362889] [2023-11-19 08:01:41,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693362889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:41,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:41,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:41,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915958077] [2023-11-19 08:01:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:41,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:41,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:41,418 INFO L87 Difference]: Start difference. First operand 150 states and 168 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:41,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:41,469 INFO L93 Difference]: Finished difference Result 262 states and 283 transitions. [2023-11-19 08:01:41,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:41,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 08:01:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:41,472 INFO L225 Difference]: With dead ends: 262 [2023-11-19 08:01:41,472 INFO L226 Difference]: Without dead ends: 256 [2023-11-19 08:01:41,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:41,474 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 100 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:41,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 219 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:41,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-19 08:01:41,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 202. [2023-11-19 08:01:41,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 148 states have (on average 1.6891891891891893) internal successors, (250), 197 states have internal predecessors, (250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:41,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 256 transitions. [2023-11-19 08:01:41,488 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 256 transitions. Word has length 13 [2023-11-19 08:01:41,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:41,488 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 256 transitions. [2023-11-19 08:01:41,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:41,489 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 256 transitions. [2023-11-19 08:01:41,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 08:01:41,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:41,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:41,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:41,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 08:01:41,722 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:41,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:41,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1828990799, now seen corresponding path program 1 times [2023-11-19 08:01:41,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:41,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126607423] [2023-11-19 08:01:41,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:41,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:41,732 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:41,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599314802] [2023-11-19 08:01:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:41,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:41,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:41,734 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:41,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 08:01:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:41,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:01:41,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:41,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:41,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:41,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126607423] [2023-11-19 08:01:41,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:41,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599314802] [2023-11-19 08:01:41,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599314802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:41,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:41,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:41,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124594605] [2023-11-19 08:01:41,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:41,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:41,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:41,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:41,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:41,834 INFO L87 Difference]: Start difference. First operand 202 states and 256 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:41,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:41,993 INFO L93 Difference]: Finished difference Result 305 states and 357 transitions. [2023-11-19 08:01:41,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:41,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-19 08:01:41,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:41,996 INFO L225 Difference]: With dead ends: 305 [2023-11-19 08:01:41,996 INFO L226 Difference]: Without dead ends: 303 [2023-11-19 08:01:41,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:41,998 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 198 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:41,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 263 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:41,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-19 08:01:42,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 203. [2023-11-19 08:01:42,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 149 states have (on average 1.6778523489932886) internal successors, (250), 198 states have internal predecessors, (250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:42,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 256 transitions. [2023-11-19 08:01:42,011 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 256 transitions. Word has length 15 [2023-11-19 08:01:42,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:42,012 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 256 transitions. [2023-11-19 08:01:42,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:42,012 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 256 transitions. [2023-11-19 08:01:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 08:01:42,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:42,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:42,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:42,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:42,233 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:42,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:42,234 INFO L85 PathProgramCache]: Analyzing trace with hash 864139987, now seen corresponding path program 1 times [2023-11-19 08:01:42,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:42,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642700799] [2023-11-19 08:01:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:42,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:42,243 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:42,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693651988] [2023-11-19 08:01:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:42,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:42,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:42,244 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:42,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 08:01:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:42,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:01:42,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:42,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:42,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:42,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642700799] [2023-11-19 08:01:42,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:42,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693651988] [2023-11-19 08:01:42,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693651988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:42,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:42,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:42,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706424406] [2023-11-19 08:01:42,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:42,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:42,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:42,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:42,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:42,325 INFO L87 Difference]: Start difference. First operand 203 states and 256 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:42,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:42,474 INFO L93 Difference]: Finished difference Result 303 states and 355 transitions. [2023-11-19 08:01:42,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:42,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-19 08:01:42,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:42,477 INFO L225 Difference]: With dead ends: 303 [2023-11-19 08:01:42,477 INFO L226 Difference]: Without dead ends: 301 [2023-11-19 08:01:42,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:42,478 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 193 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:42,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 265 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:42,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-11-19 08:01:42,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 204. [2023-11-19 08:01:42,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 150 states have (on average 1.6666666666666667) internal successors, (250), 199 states have internal predecessors, (250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:42,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 256 transitions. [2023-11-19 08:01:42,493 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 256 transitions. Word has length 16 [2023-11-19 08:01:42,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:42,493 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 256 transitions. [2023-11-19 08:01:42,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:42,494 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 256 transitions. [2023-11-19 08:01:42,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 08:01:42,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:42,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:42,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:42,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-19 08:01:42,709 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:42,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:42,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1018535889, now seen corresponding path program 1 times [2023-11-19 08:01:42,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:42,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528962622] [2023-11-19 08:01:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:42,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:42,718 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:42,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522684683] [2023-11-19 08:01:42,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:42,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:42,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:42,720 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:42,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 08:01:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:42,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:01:42,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:42,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:42,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:42,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:42,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528962622] [2023-11-19 08:01:42,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:42,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522684683] [2023-11-19 08:01:42,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522684683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:42,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:42,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:42,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742664148] [2023-11-19 08:01:42,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:42,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:42,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:42,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:42,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:42,814 INFO L87 Difference]: Start difference. First operand 204 states and 256 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:42,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:42,989 INFO L93 Difference]: Finished difference Result 281 states and 299 transitions. [2023-11-19 08:01:42,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:42,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-19 08:01:42,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:42,992 INFO L225 Difference]: With dead ends: 281 [2023-11-19 08:01:42,992 INFO L226 Difference]: Without dead ends: 279 [2023-11-19 08:01:42,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:42,993 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 220 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:42,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 264 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:42,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2023-11-19 08:01:43,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 204. [2023-11-19 08:01:43,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 150 states have (on average 1.6466666666666667) internal successors, (247), 199 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:43,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 253 transitions. [2023-11-19 08:01:43,010 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 253 transitions. Word has length 17 [2023-11-19 08:01:43,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:43,010 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 253 transitions. [2023-11-19 08:01:43,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:43,011 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 253 transitions. [2023-11-19 08:01:43,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 08:01:43,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:43,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:43,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:43,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 08:01:43,233 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:43,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:43,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1509841557, now seen corresponding path program 1 times [2023-11-19 08:01:43,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:43,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998899042] [2023-11-19 08:01:43,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:43,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:43,243 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:43,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548594922] [2023-11-19 08:01:43,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:43,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:43,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:43,249 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:43,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 08:01:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:43,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:01:43,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:43,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:43,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:43,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:43,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998899042] [2023-11-19 08:01:43,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:43,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548594922] [2023-11-19 08:01:43,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548594922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:43,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:43,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:43,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167176170] [2023-11-19 08:01:43,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:43,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:43,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:43,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:43,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:43,337 INFO L87 Difference]: Start difference. First operand 204 states and 253 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:43,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:43,480 INFO L93 Difference]: Finished difference Result 279 states and 296 transitions. [2023-11-19 08:01:43,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:01:43,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-19 08:01:43,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:43,483 INFO L225 Difference]: With dead ends: 279 [2023-11-19 08:01:43,483 INFO L226 Difference]: Without dead ends: 277 [2023-11-19 08:01:43,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:43,484 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 215 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:43,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 266 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:43,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-19 08:01:43,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 204. [2023-11-19 08:01:43,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 150 states have (on average 1.6266666666666667) internal successors, (244), 199 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 250 transitions. [2023-11-19 08:01:43,498 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 250 transitions. Word has length 18 [2023-11-19 08:01:43,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:43,499 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 250 transitions. [2023-11-19 08:01:43,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:43,499 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 250 transitions. [2023-11-19 08:01:43,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 08:01:43,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:43,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:43,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:43,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 08:01:43,720 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:43,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:43,721 INFO L85 PathProgramCache]: Analyzing trace with hash -439551917, now seen corresponding path program 1 times [2023-11-19 08:01:43,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:43,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29719209] [2023-11-19 08:01:43,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:43,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:43,729 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:43,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1577131034] [2023-11-19 08:01:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:43,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:43,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:43,731 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:43,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 08:01:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:43,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 08:01:43,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:43,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:43,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:43,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:43,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29719209] [2023-11-19 08:01:43,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:43,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577131034] [2023-11-19 08:01:43,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577131034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:43,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:43,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:01:43,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317565407] [2023-11-19 08:01:43,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:43,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:01:43,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:43,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:01:43,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:43,871 INFO L87 Difference]: Start difference. First operand 204 states and 250 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:44,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:44,092 INFO L93 Difference]: Finished difference Result 301 states and 341 transitions. [2023-11-19 08:01:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:01:44,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-19 08:01:44,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:44,095 INFO L225 Difference]: With dead ends: 301 [2023-11-19 08:01:44,095 INFO L226 Difference]: Without dead ends: 299 [2023-11-19 08:01:44,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:01:44,096 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 287 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:44,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 301 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:01:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-11-19 08:01:44,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 207. [2023-11-19 08:01:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 153 states have (on average 1.607843137254902) internal successors, (246), 202 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:44,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 252 transitions. [2023-11-19 08:01:44,107 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 252 transitions. Word has length 19 [2023-11-19 08:01:44,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:44,107 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 252 transitions. [2023-11-19 08:01:44,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:44,107 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 252 transitions. [2023-11-19 08:01:44,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 08:01:44,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:44,108 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] [2023-11-19 08:01:44,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:44,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:44,322 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:44,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:44,323 INFO L85 PathProgramCache]: Analyzing trace with hash -741207465, now seen corresponding path program 1 times [2023-11-19 08:01:44,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:44,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430060960] [2023-11-19 08:01:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:44,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:44,336 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:44,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665960226] [2023-11-19 08:01:44,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:44,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:44,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:44,340 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:44,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 08:01:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:44,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 08:01:44,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:44,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:44,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:44,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:44,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430060960] [2023-11-19 08:01:44,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:44,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665960226] [2023-11-19 08:01:44,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665960226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:44,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:44,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:01:44,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826557450] [2023-11-19 08:01:44,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:44,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:01:44,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:44,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:01:44,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:44,475 INFO L87 Difference]: Start difference. First operand 207 states and 252 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:44,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:44,725 INFO L93 Difference]: Finished difference Result 299 states and 339 transitions. [2023-11-19 08:01:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:01:44,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 08:01:44,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:44,728 INFO L225 Difference]: With dead ends: 299 [2023-11-19 08:01:44,728 INFO L226 Difference]: Without dead ends: 297 [2023-11-19 08:01:44,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:01:44,731 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 280 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:44,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 303 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:01:44,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-11-19 08:01:44,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 208. [2023-11-19 08:01:44,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 154 states have (on average 1.5974025974025974) internal successors, (246), 203 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:44,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 252 transitions. [2023-11-19 08:01:44,742 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 252 transitions. Word has length 20 [2023-11-19 08:01:44,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:44,742 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 252 transitions. [2023-11-19 08:01:44,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:44,743 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 252 transitions. [2023-11-19 08:01:44,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 08:01:44,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:44,744 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] [2023-11-19 08:01:44,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:44,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 08:01:44,957 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:44,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:44,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1502594859, now seen corresponding path program 1 times [2023-11-19 08:01:44,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:44,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471137014] [2023-11-19 08:01:44,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:44,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:44,965 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:44,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490281815] [2023-11-19 08:01:44,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:44,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:44,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:44,966 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:44,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 08:01:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:45,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:01:45,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:45,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:45,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:45,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471137014] [2023-11-19 08:01:45,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:45,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490281815] [2023-11-19 08:01:45,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490281815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:45,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:45,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:01:45,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702081934] [2023-11-19 08:01:45,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:45,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:01:45,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:45,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:01:45,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:01:45,153 INFO L87 Difference]: Start difference. First operand 208 states and 252 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2023-11-19 08:01:45,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:45,467 INFO L93 Difference]: Finished difference Result 297 states and 337 transitions. [2023-11-19 08:01:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:01:45,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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 [2023-11-19 08:01:45,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:45,470 INFO L225 Difference]: With dead ends: 297 [2023-11-19 08:01:45,470 INFO L226 Difference]: Without dead ends: 295 [2023-11-19 08:01:45,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:01:45,471 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 425 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:45,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 212 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:01:45,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-11-19 08:01:45,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 209. [2023-11-19 08:01:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 155 states have (on average 1.5870967741935484) internal successors, (246), 204 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:45,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 252 transitions. [2023-11-19 08:01:45,483 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 252 transitions. Word has length 21 [2023-11-19 08:01:45,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:45,483 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 252 transitions. [2023-11-19 08:01:45,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2023-11-19 08:01:45,483 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 252 transitions. [2023-11-19 08:01:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 08:01:45,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:45,484 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] [2023-11-19 08:01:45,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:45,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:45,704 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:45,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:45,705 INFO L85 PathProgramCache]: Analyzing trace with hash 664199705, now seen corresponding path program 1 times [2023-11-19 08:01:45,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:45,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242431884] [2023-11-19 08:01:45,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:45,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:45,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:45,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332804520] [2023-11-19 08:01:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:45,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:45,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:45,727 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:45,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 08:01:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:45,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:01:45,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:45,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:45,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:45,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242431884] [2023-11-19 08:01:45,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:45,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332804520] [2023-11-19 08:01:45,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332804520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:45,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:45,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:01:45,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141524304] [2023-11-19 08:01:45,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:45,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:01:45,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:45,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:01:45,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:01:45,902 INFO L87 Difference]: Start difference. First operand 209 states and 252 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2023-11-19 08:01:46,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:46,281 INFO L93 Difference]: Finished difference Result 295 states and 335 transitions. [2023-11-19 08:01:46,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:01:46,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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 [2023-11-19 08:01:46,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:46,284 INFO L225 Difference]: With dead ends: 295 [2023-11-19 08:01:46,284 INFO L226 Difference]: Without dead ends: 293 [2023-11-19 08:01:46,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:01:46,285 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 383 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:46,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 212 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:01:46,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-19 08:01:46,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 210. [2023-11-19 08:01:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 156 states have (on average 1.5769230769230769) internal successors, (246), 205 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:46,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 252 transitions. [2023-11-19 08:01:46,295 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 252 transitions. Word has length 22 [2023-11-19 08:01:46,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:46,296 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 252 transitions. [2023-11-19 08:01:46,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) [2023-11-19 08:01:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 252 transitions. [2023-11-19 08:01:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 08:01:46,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:46,297 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] [2023-11-19 08:01:46,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:46,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:46,522 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:46,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:46,523 INFO L85 PathProgramCache]: Analyzing trace with hash 259158489, now seen corresponding path program 1 times [2023-11-19 08:01:46,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:46,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851209628] [2023-11-19 08:01:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:46,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:46,531 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:46,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584741047] [2023-11-19 08:01:46,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:46,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:46,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:46,533 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:46,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 08:01:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:46,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 08:01:46,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:46,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:46,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:46,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:46,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851209628] [2023-11-19 08:01:46,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:46,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584741047] [2023-11-19 08:01:46,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584741047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:46,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:46,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:01:46,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117873623] [2023-11-19 08:01:46,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:46,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:01:46,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:46,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:01:46,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:01:46,807 INFO L87 Difference]: Start difference. First operand 210 states and 252 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) [2023-11-19 08:01:47,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:47,374 INFO L93 Difference]: Finished difference Result 291 states and 333 transitions. [2023-11-19 08:01:47,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:01:47,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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 25 [2023-11-19 08:01:47,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:47,376 INFO L225 Difference]: With dead ends: 291 [2023-11-19 08:01:47,376 INFO L226 Difference]: Without dead ends: 287 [2023-11-19 08:01:47,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:01:47,377 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 366 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:47,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 152 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 08:01:47,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-19 08:01:47,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 211. [2023-11-19 08:01:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 159 states have (on average 1.5471698113207548) internal successors, (246), 206 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 252 transitions. [2023-11-19 08:01:47,387 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 252 transitions. Word has length 25 [2023-11-19 08:01:47,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:47,387 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 252 transitions. [2023-11-19 08:01:47,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) [2023-11-19 08:01:47,387 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 252 transitions. [2023-11-19 08:01:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 08:01:47,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:47,388 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, 1] [2023-11-19 08:01:47,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:47,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:47,606 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:47,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:47,606 INFO L85 PathProgramCache]: Analyzing trace with hash -556021347, now seen corresponding path program 1 times [2023-11-19 08:01:47,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:47,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056950278] [2023-11-19 08:01:47,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:47,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:47,613 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:47,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [613228904] [2023-11-19 08:01:47,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:47,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:47,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:47,624 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:47,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 08:01:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:47,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 08:01:47,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:47,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:47,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:47,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:47,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056950278] [2023-11-19 08:01:47,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:47,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613228904] [2023-11-19 08:01:47,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613228904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:47,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:47,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:01:47,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020029200] [2023-11-19 08:01:47,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:47,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:01:47,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:47,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:01:47,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:01:47,860 INFO L87 Difference]: Start difference. First operand 211 states and 252 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:48,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:48,277 INFO L93 Difference]: Finished difference Result 285 states and 327 transitions. [2023-11-19 08:01:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:01:48,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-19 08:01:48,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:48,279 INFO L225 Difference]: With dead ends: 285 [2023-11-19 08:01:48,279 INFO L226 Difference]: Without dead ends: 281 [2023-11-19 08:01:48,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:01:48,280 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 370 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:48,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 147 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:01:48,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-11-19 08:01:48,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 210. [2023-11-19 08:01:48,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 160 states have (on average 1.525) internal successors, (244), 205 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:48,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 250 transitions. [2023-11-19 08:01:48,289 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 250 transitions. Word has length 26 [2023-11-19 08:01:48,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:48,290 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 250 transitions. [2023-11-19 08:01:48,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:48,290 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 250 transitions. [2023-11-19 08:01:48,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 08:01:48,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:48,291 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, 1, 1] [2023-11-19 08:01:48,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:48,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 08:01:48,511 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:48,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:48,512 INFO L85 PathProgramCache]: Analyzing trace with hash -56792485, now seen corresponding path program 1 times [2023-11-19 08:01:48,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:48,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734193395] [2023-11-19 08:01:48,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:48,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:48,518 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:48,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841955771] [2023-11-19 08:01:48,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:48,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:48,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:48,523 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:48,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 08:01:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:48,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:48,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:48,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:48,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:48,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:48,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734193395] [2023-11-19 08:01:48,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:48,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841955771] [2023-11-19 08:01:48,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841955771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:48,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:48,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:48,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759942960] [2023-11-19 08:01:48,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:48,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:48,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:48,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:48,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:48,666 INFO L87 Difference]: Start difference. First operand 210 states and 250 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 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) [2023-11-19 08:01:48,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:48,878 INFO L93 Difference]: Finished difference Result 237 states and 275 transitions. [2023-11-19 08:01:48,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:48,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 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 27 [2023-11-19 08:01:48,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:48,880 INFO L225 Difference]: With dead ends: 237 [2023-11-19 08:01:48,880 INFO L226 Difference]: Without dead ends: 235 [2023-11-19 08:01:48,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:48,881 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 42 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:48,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 156 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:01:48,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-11-19 08:01:48,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 211. [2023-11-19 08:01:48,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 161 states have (on average 1.515527950310559) internal successors, (244), 206 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:48,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 250 transitions. [2023-11-19 08:01:48,893 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 250 transitions. Word has length 27 [2023-11-19 08:01:48,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:48,894 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 250 transitions. [2023-11-19 08:01:48,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 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) [2023-11-19 08:01:48,895 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 250 transitions. [2023-11-19 08:01:48,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 08:01:48,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:48,896 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, 1, 1, 1] [2023-11-19 08:01:48,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:49,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 08:01:49,116 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:49,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:49,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1760566945, now seen corresponding path program 1 times [2023-11-19 08:01:49,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:49,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833185869] [2023-11-19 08:01:49,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:49,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:49,138 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:49,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [415906460] [2023-11-19 08:01:49,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:49,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:49,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:49,141 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:49,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 08:01:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:49,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:49,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:49,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:49,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:49,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:49,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833185869] [2023-11-19 08:01:49,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:49,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415906460] [2023-11-19 08:01:49,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415906460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:49,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:49,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:49,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830637374] [2023-11-19 08:01:49,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:49,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:49,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:49,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:49,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:49,266 INFO L87 Difference]: Start difference. First operand 211 states and 250 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) [2023-11-19 08:01:49,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:49,484 INFO L93 Difference]: Finished difference Result 235 states and 273 transitions. [2023-11-19 08:01:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:49,485 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 28 [2023-11-19 08:01:49,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:49,486 INFO L225 Difference]: With dead ends: 235 [2023-11-19 08:01:49,486 INFO L226 Difference]: Without dead ends: 233 [2023-11-19 08:01:49,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:49,487 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 39 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:49,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 160 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:01:49,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-19 08:01:49,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 212. [2023-11-19 08:01:49,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 162 states have (on average 1.5061728395061729) internal successors, (244), 207 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:49,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 250 transitions. [2023-11-19 08:01:49,497 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 250 transitions. Word has length 28 [2023-11-19 08:01:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:49,498 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 250 transitions. [2023-11-19 08:01:49,498 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) [2023-11-19 08:01:49,498 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 250 transitions. [2023-11-19 08:01:49,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 08:01:49,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:49,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:49,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:49,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:49,720 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:49,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:49,720 INFO L85 PathProgramCache]: Analyzing trace with hash 494361908, now seen corresponding path program 1 times [2023-11-19 08:01:49,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:49,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981253741] [2023-11-19 08:01:49,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:49,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:49,728 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:49,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [374104318] [2023-11-19 08:01:49,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:49,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:49,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:49,732 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:49,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 08:01:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:49,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:01:49,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:49,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:49,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:49,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:49,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981253741] [2023-11-19 08:01:49,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:49,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374104318] [2023-11-19 08:01:49,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374104318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:49,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:49,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:49,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523562390] [2023-11-19 08:01:49,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:49,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:49,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:49,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:49,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:49,937 INFO L87 Difference]: Start difference. First operand 212 states and 250 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:50,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:50,098 INFO L93 Difference]: Finished difference Result 233 states and 271 transitions. [2023-11-19 08:01:50,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:50,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2023-11-19 08:01:50,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:50,100 INFO L225 Difference]: With dead ends: 233 [2023-11-19 08:01:50,100 INFO L226 Difference]: Without dead ends: 231 [2023-11-19 08:01:50,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:50,101 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 204 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:50,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 113 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:50,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-19 08:01:50,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 221. [2023-11-19 08:01:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 171 states have (on average 1.4853801169590644) internal successors, (254), 216 states have internal predecessors, (254), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:50,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 260 transitions. [2023-11-19 08:01:50,118 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 260 transitions. Word has length 38 [2023-11-19 08:01:50,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:50,119 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 260 transitions. [2023-11-19 08:01:50,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:50,120 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 260 transitions. [2023-11-19 08:01:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 08:01:50,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:50,124 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:50,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:50,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:50,337 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:50,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:50,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1854649929, now seen corresponding path program 1 times [2023-11-19 08:01:50,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:50,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111373232] [2023-11-19 08:01:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:50,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:50,345 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:50,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819863285] [2023-11-19 08:01:50,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:50,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:50,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:50,346 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:50,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 08:01:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:50,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:50,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:50,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:50,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:50,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111373232] [2023-11-19 08:01:50,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:50,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819863285] [2023-11-19 08:01:50,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819863285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:50,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:50,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:50,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685216108] [2023-11-19 08:01:50,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:50,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:50,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:50,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:50,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:50,448 INFO L87 Difference]: Start difference. First operand 221 states and 260 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:50,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:50,531 INFO L93 Difference]: Finished difference Result 221 states and 260 transitions. [2023-11-19 08:01:50,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:50,532 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2023-11-19 08:01:50,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:50,533 INFO L225 Difference]: With dead ends: 221 [2023-11-19 08:01:50,533 INFO L226 Difference]: Without dead ends: 220 [2023-11-19 08:01:50,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:50,534 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 81 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:50,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 143 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:50,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-19 08:01:50,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2023-11-19 08:01:50,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 171 states have (on average 1.4736842105263157) internal successors, (252), 215 states have internal predecessors, (252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:50,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 258 transitions. [2023-11-19 08:01:50,543 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 258 transitions. Word has length 39 [2023-11-19 08:01:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:50,544 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 258 transitions. [2023-11-19 08:01:50,544 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:50,544 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 258 transitions. [2023-11-19 08:01:50,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 08:01:50,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:50,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:50,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:50,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:50,765 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:50,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:50,766 INFO L85 PathProgramCache]: Analyzing trace with hash 92850137, now seen corresponding path program 1 times [2023-11-19 08:01:50,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:50,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060925429] [2023-11-19 08:01:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:50,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:50,773 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:50,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [605431611] [2023-11-19 08:01:50,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:50,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:50,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:50,775 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:50,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 08:01:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:50,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:50,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:50,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:50,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:50,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060925429] [2023-11-19 08:01:50,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:50,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605431611] [2023-11-19 08:01:50,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605431611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:50,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:50,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:50,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729469100] [2023-11-19 08:01:50,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:50,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:50,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:50,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:50,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:50,880 INFO L87 Difference]: Start difference. First operand 220 states and 258 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:51,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:51,061 INFO L93 Difference]: Finished difference Result 220 states and 258 transitions. [2023-11-19 08:01:51,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:51,063 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2023-11-19 08:01:51,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:51,065 INFO L225 Difference]: With dead ends: 220 [2023-11-19 08:01:51,065 INFO L226 Difference]: Without dead ends: 219 [2023-11-19 08:01:51,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:51,066 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 80 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:51,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 207 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:01:51,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-19 08:01:51,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-19 08:01:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 171 states have (on average 1.4619883040935673) internal successors, (250), 214 states have internal predecessors, (250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 256 transitions. [2023-11-19 08:01:51,076 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 256 transitions. Word has length 41 [2023-11-19 08:01:51,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:51,077 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 256 transitions. [2023-11-19 08:01:51,077 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:51,077 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 256 transitions. [2023-11-19 08:01:51,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 08:01:51,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:51,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:51,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:51,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:51,293 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:51,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:51,293 INFO L85 PathProgramCache]: Analyzing trace with hash 673786339, now seen corresponding path program 1 times [2023-11-19 08:01:51,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:51,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322655999] [2023-11-19 08:01:51,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:51,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:51,299 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:51,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372921451] [2023-11-19 08:01:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:51,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:51,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:51,306 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:51,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 08:01:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:51,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:01:51,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:51,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:51,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:51,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:51,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322655999] [2023-11-19 08:01:51,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:51,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372921451] [2023-11-19 08:01:51,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372921451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:51,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:51,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:51,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368399511] [2023-11-19 08:01:51,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:51,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:51,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:51,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:51,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:51,595 INFO L87 Difference]: Start difference. First operand 219 states and 256 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:51,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:51,803 INFO L93 Difference]: Finished difference Result 228 states and 264 transitions. [2023-11-19 08:01:51,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:51,804 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2023-11-19 08:01:51,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:51,805 INFO L225 Difference]: With dead ends: 228 [2023-11-19 08:01:51,805 INFO L226 Difference]: Without dead ends: 227 [2023-11-19 08:01:51,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:51,806 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 165 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:51,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 106 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:01:51,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-19 08:01:51,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 220. [2023-11-19 08:01:51,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 172 states have (on average 1.4593023255813953) internal successors, (251), 215 states have internal predecessors, (251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:51,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 257 transitions. [2023-11-19 08:01:51,816 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 257 transitions. Word has length 41 [2023-11-19 08:01:51,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:51,817 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 257 transitions. [2023-11-19 08:01:51,817 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:51,817 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 257 transitions. [2023-11-19 08:01:51,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 08:01:51,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:51,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:51,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:52,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:52,033 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:52,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:52,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1416612918, now seen corresponding path program 1 times [2023-11-19 08:01:52,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:52,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016686867] [2023-11-19 08:01:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:52,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:52,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:52,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1320602341] [2023-11-19 08:01:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:52,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:52,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:52,042 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:52,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 08:01:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:52,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:52,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:52,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:52,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:52,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016686867] [2023-11-19 08:01:52,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:52,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320602341] [2023-11-19 08:01:52,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320602341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:52,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:52,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:52,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904306438] [2023-11-19 08:01:52,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:52,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:52,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:52,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:52,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:52,141 INFO L87 Difference]: Start difference. First operand 220 states and 257 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:52,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:52,190 INFO L93 Difference]: Finished difference Result 238 states and 275 transitions. [2023-11-19 08:01:52,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:52,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2023-11-19 08:01:52,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:52,192 INFO L225 Difference]: With dead ends: 238 [2023-11-19 08:01:52,193 INFO L226 Difference]: Without dead ends: 237 [2023-11-19 08:01:52,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:52,194 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 37 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:52,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 312 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:52,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-19 08:01:52,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 229. [2023-11-19 08:01:52,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.4475138121546962) internal successors, (262), 224 states have internal predecessors, (262), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:52,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 268 transitions. [2023-11-19 08:01:52,204 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 268 transitions. Word has length 42 [2023-11-19 08:01:52,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:52,205 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 268 transitions. [2023-11-19 08:01:52,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 268 transitions. [2023-11-19 08:01:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 08:01:52,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:52,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:52,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:52,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-19 08:01:52,421 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:52,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:52,421 INFO L85 PathProgramCache]: Analyzing trace with hash -587459848, now seen corresponding path program 1 times [2023-11-19 08:01:52,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:52,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133604841] [2023-11-19 08:01:52,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:52,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:52,428 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:52,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363344145] [2023-11-19 08:01:52,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:52,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:52,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:52,429 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:52,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 08:01:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:52,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:52,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:52,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:52,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:52,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:52,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133604841] [2023-11-19 08:01:52,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:52,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363344145] [2023-11-19 08:01:52,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363344145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:52,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:52,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:52,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862555010] [2023-11-19 08:01:52,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:52,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:52,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:52,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:52,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:52,534 INFO L87 Difference]: Start difference. First operand 229 states and 268 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:52,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:52,664 INFO L93 Difference]: Finished difference Result 229 states and 268 transitions. [2023-11-19 08:01:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:52,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2023-11-19 08:01:52,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:52,667 INFO L225 Difference]: With dead ends: 229 [2023-11-19 08:01:52,668 INFO L226 Difference]: Without dead ends: 227 [2023-11-19 08:01:52,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:52,670 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 77 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:52,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 203 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:01:52,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-19 08:01:52,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2023-11-19 08:01:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 181 states have (on average 1.430939226519337) internal successors, (259), 222 states have internal predecessors, (259), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:52,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 265 transitions. [2023-11-19 08:01:52,682 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 265 transitions. Word has length 42 [2023-11-19 08:01:52,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:52,682 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 265 transitions. [2023-11-19 08:01:52,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:52,683 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 265 transitions. [2023-11-19 08:01:52,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 08:01:52,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:52,684 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:52,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:52,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-19 08:01:52,904 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:52,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:52,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1031385979, now seen corresponding path program 1 times [2023-11-19 08:01:52,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:52,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956325927] [2023-11-19 08:01:52,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:52,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:52,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:52,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859164881] [2023-11-19 08:01:52,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:52,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:52,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:52,913 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:52,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-19 08:01:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:52,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:01:52,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:53,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:53,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:53,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:53,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956325927] [2023-11-19 08:01:53,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:53,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859164881] [2023-11-19 08:01:53,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859164881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:53,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:53,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:53,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317620904] [2023-11-19 08:01:53,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:53,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:53,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:53,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:53,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:53,015 INFO L87 Difference]: Start difference. First operand 227 states and 265 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:53,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:53,062 INFO L93 Difference]: Finished difference Result 270 states and 279 transitions. [2023-11-19 08:01:53,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:53,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2023-11-19 08:01:53,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:53,065 INFO L225 Difference]: With dead ends: 270 [2023-11-19 08:01:53,066 INFO L226 Difference]: Without dead ends: 269 [2023-11-19 08:01:53,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:53,067 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 65 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:53,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 304 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:53,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-19 08:01:53,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 235. [2023-11-19 08:01:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 189 states have (on average 1.417989417989418) internal successors, (268), 230 states have internal predecessors, (268), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 274 transitions. [2023-11-19 08:01:53,080 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 274 transitions. Word has length 43 [2023-11-19 08:01:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:53,080 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 274 transitions. [2023-11-19 08:01:53,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:53,080 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 274 transitions. [2023-11-19 08:01:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 08:01:53,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:53,081 INFO L195 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:53,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-19 08:01:53,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-19 08:01:53,297 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:53,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:53,297 INFO L85 PathProgramCache]: Analyzing trace with hash 139620076, now seen corresponding path program 1 times [2023-11-19 08:01:53,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:53,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548595150] [2023-11-19 08:01:53,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:53,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:53,304 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:53,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1340176206] [2023-11-19 08:01:53,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:53,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:53,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:53,306 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:53,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-19 08:01:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:53,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:01:53,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:53,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:53,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:53,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:53,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548595150] [2023-11-19 08:01:53,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:53,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340176206] [2023-11-19 08:01:53,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340176206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:53,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:53,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:01:53,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046107312] [2023-11-19 08:01:53,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:53,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:01:53,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:53,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:01:53,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:01:53,420 INFO L87 Difference]: Start difference. First operand 235 states and 274 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:53,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:53,472 INFO L93 Difference]: Finished difference Result 235 states and 274 transitions. [2023-11-19 08:01:53,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:01:53,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2023-11-19 08:01:53,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:53,474 INFO L225 Difference]: With dead ends: 235 [2023-11-19 08:01:53,474 INFO L226 Difference]: Without dead ends: 234 [2023-11-19 08:01:53,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:01:53,475 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 154 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:53,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 330 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:53,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-11-19 08:01:53,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2023-11-19 08:01:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 189 states have (on average 1.4074074074074074) internal successors, (266), 229 states have internal predecessors, (266), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:01:53,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 272 transitions. [2023-11-19 08:01:53,486 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 272 transitions. Word has length 44 [2023-11-19 08:01:53,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:53,486 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 272 transitions. [2023-11-19 08:01:53,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:01:53,487 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 272 transitions. [2023-11-19 08:01:53,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 08:01:53,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:53,488 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:53,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:53,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-19 08:01:53,701 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:53,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:53,701 INFO L85 PathProgramCache]: Analyzing trace with hash 33255109, now seen corresponding path program 1 times [2023-11-19 08:01:53,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:53,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094273626] [2023-11-19 08:01:53,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:53,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:53,722 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:53,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568340586] [2023-11-19 08:01:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:53,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:53,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:53,724 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:53,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-19 08:01:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:53,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:01:53,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:53,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:53,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:01:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:53,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:53,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094273626] [2023-11-19 08:01:53,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:53,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568340586] [2023-11-19 08:01:53,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568340586] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:01:53,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:01:53,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-19 08:01:53,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49095508] [2023-11-19 08:01:53,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:01:53,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 08:01:53,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:53,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:01:53,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:01:53,957 INFO L87 Difference]: Start difference. First operand 234 states and 272 transitions. Second operand has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:01:54,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:54,085 INFO L93 Difference]: Finished difference Result 644 states and 764 transitions. [2023-11-19 08:01:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 08:01:54,085 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2023-11-19 08:01:54,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:54,089 INFO L225 Difference]: With dead ends: 644 [2023-11-19 08:01:54,089 INFO L226 Difference]: Without dead ends: 582 [2023-11-19 08:01:54,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-19 08:01:54,090 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 302 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:54,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 604 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:54,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-11-19 08:01:54,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 412. [2023-11-19 08:01:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 360 states have (on average 1.4472222222222222) internal successors, (521), 400 states have internal predecessors, (521), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:01:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 535 transitions. [2023-11-19 08:01:54,115 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 535 transitions. Word has length 45 [2023-11-19 08:01:54,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:54,115 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 535 transitions. [2023-11-19 08:01:54,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:01:54,115 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 535 transitions. [2023-11-19 08:01:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 08:01:54,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:54,116 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:54,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:54,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-19 08:01:54,337 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:54,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:54,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1893390407, now seen corresponding path program 1 times [2023-11-19 08:01:54,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:54,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622412998] [2023-11-19 08:01:54,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:54,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:54,344 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:54,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4163951] [2023-11-19 08:01:54,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:54,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:54,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:54,346 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:54,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-19 08:01:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:54,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:01:54,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:54,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:01:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:54,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:54,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622412998] [2023-11-19 08:01:54,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:54,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4163951] [2023-11-19 08:01:54,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4163951] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:01:54,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:01:54,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-19 08:01:54,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856756068] [2023-11-19 08:01:54,685 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:01:54,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 08:01:54,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:54,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:01:54,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:01:54,687 INFO L87 Difference]: Start difference. First operand 412 states and 535 transitions. Second operand has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:01:56,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 08:01:57,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:57,182 INFO L93 Difference]: Finished difference Result 508 states and 622 transitions. [2023-11-19 08:01:57,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:01:57,182 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2023-11-19 08:01:57,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:57,186 INFO L225 Difference]: With dead ends: 508 [2023-11-19 08:01:57,187 INFO L226 Difference]: Without dead ends: 506 [2023-11-19 08:01:57,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:01:57,188 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 523 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:57,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 368 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-19 08:01:57,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-11-19 08:01:57,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 418. [2023-11-19 08:01:57,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 366 states have (on average 1.4344262295081966) internal successors, (525), 406 states have internal predecessors, (525), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:01:57,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 539 transitions. [2023-11-19 08:01:57,211 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 539 transitions. Word has length 47 [2023-11-19 08:01:57,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:57,212 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 539 transitions. [2023-11-19 08:01:57,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:01:57,212 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 539 transitions. [2023-11-19 08:01:57,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 08:01:57,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:57,213 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:57,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:57,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-19 08:01:57,429 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:57,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:57,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1434439469, now seen corresponding path program 1 times [2023-11-19 08:01:57,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:57,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183036395] [2023-11-19 08:01:57,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:57,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:57,435 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:57,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857048543] [2023-11-19 08:01:57,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:57,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:57,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:57,439 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:57,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-19 08:01:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:57,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:01:57,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:57,671 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:57,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:01:58,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:58,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:58,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183036395] [2023-11-19 08:01:58,008 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:58,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857048543] [2023-11-19 08:01:58,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857048543] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:01:58,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:01:58,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-19 08:01:58,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993825987] [2023-11-19 08:01:58,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:01:58,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 08:01:58,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:58,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:01:58,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:01:58,010 INFO L87 Difference]: Start difference. First operand 418 states and 539 transitions. Second operand has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:01:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:59,221 INFO L93 Difference]: Finished difference Result 508 states and 618 transitions. [2023-11-19 08:01:59,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:01:59,230 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2023-11-19 08:01:59,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:59,233 INFO L225 Difference]: With dead ends: 508 [2023-11-19 08:01:59,234 INFO L226 Difference]: Without dead ends: 506 [2023-11-19 08:01:59,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:01:59,235 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 494 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:59,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 358 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 08:01:59,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-11-19 08:01:59,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 420. [2023-11-19 08:01:59,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 368 states have (on average 1.421195652173913) internal successors, (523), 408 states have internal predecessors, (523), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:01:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 537 transitions. [2023-11-19 08:01:59,262 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 537 transitions. Word has length 48 [2023-11-19 08:01:59,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:59,262 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 537 transitions. [2023-11-19 08:01:59,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:01:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 537 transitions. [2023-11-19 08:01:59,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 08:01:59,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:59,264 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:59,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:59,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:59,478 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:01:59,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:59,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1538433867, now seen corresponding path program 1 times [2023-11-19 08:01:59,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:59,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265265655] [2023-11-19 08:01:59,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:59,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:59,486 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:01:59,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514306718] [2023-11-19 08:01:59,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:59,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:59,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:59,488 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:59,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-19 08:01:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:59,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 08:01:59,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:59,707 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:59,707 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:01:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:59,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:59,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265265655] [2023-11-19 08:01:59,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:01:59,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514306718] [2023-11-19 08:01:59,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514306718] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:01:59,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:01:59,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-19 08:01:59,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060065228] [2023-11-19 08:01:59,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:01:59,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 08:01:59,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:59,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 08:01:59,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:01:59,839 INFO L87 Difference]: Start difference. First operand 420 states and 537 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:01,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:01,272 INFO L93 Difference]: Finished difference Result 590 states and 688 transitions. [2023-11-19 08:02:01,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 08:02:01,273 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2023-11-19 08:02:01,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:01,277 INFO L225 Difference]: With dead ends: 590 [2023-11-19 08:02:01,277 INFO L226 Difference]: Without dead ends: 588 [2023-11-19 08:02:01,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2023-11-19 08:02:01,279 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 1020 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:01,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 303 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 08:02:01,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-11-19 08:02:01,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 430. [2023-11-19 08:02:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 378 states have (on average 1.4047619047619047) internal successors, (531), 418 states have internal predecessors, (531), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:02:01,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 545 transitions. [2023-11-19 08:02:01,311 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 545 transitions. Word has length 51 [2023-11-19 08:02:01,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:01,311 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 545 transitions. [2023-11-19 08:02:01,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:01,312 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 545 transitions. [2023-11-19 08:02:01,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 08:02:01,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:01,313 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:01,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:01,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:01,529 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:01,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:01,529 INFO L85 PathProgramCache]: Analyzing trace with hash 446809687, now seen corresponding path program 1 times [2023-11-19 08:02:01,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:01,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647951117] [2023-11-19 08:02:01,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:01,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:01,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:01,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [94928516] [2023-11-19 08:02:01,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:01,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:01,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:01,548 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:01,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-19 08:02:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:01,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 08:02:01,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:01,797 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:01,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:02,426 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:02,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:02,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647951117] [2023-11-19 08:02:02,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:02,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94928516] [2023-11-19 08:02:02,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94928516] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:02,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:02:02,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-19 08:02:02,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341106244] [2023-11-19 08:02:02,428 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:02,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 08:02:02,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:02,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 08:02:02,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:02:02,429 INFO L87 Difference]: Start difference. First operand 430 states and 545 transitions. Second operand has 14 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:04,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:04,049 INFO L93 Difference]: Finished difference Result 604 states and 719 transitions. [2023-11-19 08:02:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 08:02:04,050 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2023-11-19 08:02:04,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:04,053 INFO L225 Difference]: With dead ends: 604 [2023-11-19 08:02:04,053 INFO L226 Difference]: Without dead ends: 602 [2023-11-19 08:02:04,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=274, Invalid=656, Unknown=0, NotChecked=0, Total=930 [2023-11-19 08:02:04,055 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 1079 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:04,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 332 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 08:02:04,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-11-19 08:02:04,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 464. [2023-11-19 08:02:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 411 states have (on average 1.4063260340632604) internal successors, (578), 451 states have internal predecessors, (578), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 08:02:04,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 594 transitions. [2023-11-19 08:02:04,080 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 594 transitions. Word has length 52 [2023-11-19 08:02:04,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:04,081 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 594 transitions. [2023-11-19 08:02:04,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:04,081 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 594 transitions. [2023-11-19 08:02:04,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 08:02:04,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:04,082 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:04,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:04,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-19 08:02:04,297 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:04,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:04,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1048231145, now seen corresponding path program 1 times [2023-11-19 08:02:04,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:04,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74625293] [2023-11-19 08:02:04,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:04,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:04,304 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:04,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354810986] [2023-11-19 08:02:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:04,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:04,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:04,306 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:04,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-19 08:02:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:04,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:02:04,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:04,542 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:04,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:04,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:04,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74625293] [2023-11-19 08:02:04,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:04,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354810986] [2023-11-19 08:02:04,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354810986] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:02:04,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:02:04,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-19 08:02:04,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376004567] [2023-11-19 08:02:04,821 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:04,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:02:04,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:04,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:02:04,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:02:04,822 INFO L87 Difference]: Start difference. First operand 464 states and 594 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:05,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:05,309 INFO L93 Difference]: Finished difference Result 584 states and 684 transitions. [2023-11-19 08:02:05,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:02:05,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2023-11-19 08:02:05,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:05,314 INFO L225 Difference]: With dead ends: 584 [2023-11-19 08:02:05,314 INFO L226 Difference]: Without dead ends: 582 [2023-11-19 08:02:05,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-19 08:02:05,315 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 275 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:05,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 503 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:02:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-11-19 08:02:05,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 465. [2023-11-19 08:02:05,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 413 states have (on average 1.3922518159806296) internal successors, (575), 452 states have internal predecessors, (575), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 08:02:05,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 591 transitions. [2023-11-19 08:02:05,344 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 591 transitions. Word has length 53 [2023-11-19 08:02:05,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:05,344 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 591 transitions. [2023-11-19 08:02:05,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 591 transitions. [2023-11-19 08:02:05,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 08:02:05,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:05,346 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:05,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:05,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-19 08:02:05,561 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:05,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:05,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1864572935, now seen corresponding path program 1 times [2023-11-19 08:02:05,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:05,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875689951] [2023-11-19 08:02:05,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:05,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:05,569 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:05,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2091741011] [2023-11-19 08:02:05,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:05,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:05,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:05,571 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:05,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-19 08:02:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:05,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 08:02:05,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:05,907 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:05,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:06,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:06,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875689951] [2023-11-19 08:02:06,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:06,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091741011] [2023-11-19 08:02:06,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091741011] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:02:06,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:02:06,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-19 08:02:06,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393497140] [2023-11-19 08:02:06,104 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:06,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:02:06,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:06,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:02:06,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:02:06,106 INFO L87 Difference]: Start difference. First operand 465 states and 591 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:06,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:06,495 INFO L93 Difference]: Finished difference Result 698 states and 820 transitions. [2023-11-19 08:02:06,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:02:06,495 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2023-11-19 08:02:06,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:06,500 INFO L225 Difference]: With dead ends: 698 [2023-11-19 08:02:06,500 INFO L226 Difference]: Without dead ends: 696 [2023-11-19 08:02:06,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:02:06,501 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 486 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:06,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 349 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:02:06,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-11-19 08:02:06,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 553. [2023-11-19 08:02:06,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 499 states have (on average 1.4168336673346693) internal successors, (707), 538 states have internal predecessors, (707), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 08:02:06,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 727 transitions. [2023-11-19 08:02:06,536 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 727 transitions. Word has length 54 [2023-11-19 08:02:06,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:06,536 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 727 transitions. [2023-11-19 08:02:06,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:06,537 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 727 transitions. [2023-11-19 08:02:06,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 08:02:06,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:06,538 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, 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, 1, 1, 1, 1, 1] [2023-11-19 08:02:06,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:06,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:06,753 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:06,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:06,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1825871214, now seen corresponding path program 1 times [2023-11-19 08:02:06,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:06,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016434654] [2023-11-19 08:02:06,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:06,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:06,759 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:06,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333910081] [2023-11-19 08:02:06,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:06,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:06,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:06,761 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:06,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-19 08:02:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:06,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:06,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:07,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:02:07,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:07,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016434654] [2023-11-19 08:02:07,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:07,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333910081] [2023-11-19 08:02:07,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333910081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:07,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:07,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:02:07,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967882526] [2023-11-19 08:02:07,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:07,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:02:07,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:07,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:02:07,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:02:07,041 INFO L87 Difference]: Start difference. First operand 553 states and 727 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:07,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:07,257 INFO L93 Difference]: Finished difference Result 559 states and 732 transitions. [2023-11-19 08:02:07,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:02:07,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2023-11-19 08:02:07,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:07,266 INFO L225 Difference]: With dead ends: 559 [2023-11-19 08:02:07,266 INFO L226 Difference]: Without dead ends: 558 [2023-11-19 08:02:07,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:02:07,267 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 24 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:07,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 130 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:02:07,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-19 08:02:07,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 556. [2023-11-19 08:02:07,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 502 states have (on average 1.4143426294820718) internal successors, (710), 541 states have internal predecessors, (710), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 08:02:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 730 transitions. [2023-11-19 08:02:07,297 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 730 transitions. Word has length 55 [2023-11-19 08:02:07,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:07,298 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 730 transitions. [2023-11-19 08:02:07,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:07,298 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 730 transitions. [2023-11-19 08:02:07,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 08:02:07,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:07,299 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:07,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:07,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:07,519 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:07,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:07,519 INFO L85 PathProgramCache]: Analyzing trace with hash 803802703, now seen corresponding path program 1 times [2023-11-19 08:02:07,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:07,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652348790] [2023-11-19 08:02:07,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:07,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:07,526 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:07,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779662138] [2023-11-19 08:02:07,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:07,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:07,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:07,528 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:07,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-19 08:02:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:07,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:02:07,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 08:02:07,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:07,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 08:02:07,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:07,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652348790] [2023-11-19 08:02:07,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:07,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779662138] [2023-11-19 08:02:07,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779662138] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:07,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:02:07,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-19 08:02:07,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238113494] [2023-11-19 08:02:07,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:07,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:02:07,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:07,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:02:07,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:02:07,759 INFO L87 Difference]: Start difference. First operand 556 states and 730 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:07,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:07,983 INFO L93 Difference]: Finished difference Result 627 states and 782 transitions. [2023-11-19 08:02:07,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:02:07,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2023-11-19 08:02:07,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:07,987 INFO L225 Difference]: With dead ends: 627 [2023-11-19 08:02:07,987 INFO L226 Difference]: Without dead ends: 625 [2023-11-19 08:02:07,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:02:07,988 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 333 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:07,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 274 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:02:07,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-11-19 08:02:08,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 557. [2023-11-19 08:02:08,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 503 states have (on average 1.4075546719681908) internal successors, (708), 542 states have internal predecessors, (708), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 08:02:08,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 728 transitions. [2023-11-19 08:02:08,021 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 728 transitions. Word has length 55 [2023-11-19 08:02:08,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:08,021 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 728 transitions. [2023-11-19 08:02:08,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:08,022 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 728 transitions. [2023-11-19 08:02:08,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 08:02:08,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:08,022 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, 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, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:08,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:08,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-19 08:02:08,242 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:08,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:08,243 INFO L85 PathProgramCache]: Analyzing trace with hash 767432964, now seen corresponding path program 1 times [2023-11-19 08:02:08,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:08,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705791389] [2023-11-19 08:02:08,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:08,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:08,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:08,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980027268] [2023-11-19 08:02:08,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:08,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:08,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:08,249 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:08,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-19 08:02:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:08,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:08,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:08,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:08,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:02:08,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:08,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705791389] [2023-11-19 08:02:08,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:08,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980027268] [2023-11-19 08:02:08,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980027268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:08,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:08,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:02:08,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636037181] [2023-11-19 08:02:08,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:08,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:02:08,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:08,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:02:08,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:02:08,540 INFO L87 Difference]: Start difference. First operand 557 states and 728 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:08,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:08,711 INFO L93 Difference]: Finished difference Result 559 states and 729 transitions. [2023-11-19 08:02:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:02:08,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2023-11-19 08:02:08,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:08,715 INFO L225 Difference]: With dead ends: 559 [2023-11-19 08:02:08,715 INFO L226 Difference]: Without dead ends: 536 [2023-11-19 08:02:08,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:02:08,717 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 32 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:08,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 119 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:02:08,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2023-11-19 08:02:08,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2023-11-19 08:02:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 482 states have (on average 1.4232365145228216) internal successors, (686), 521 states have internal predecessors, (686), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 08:02:08,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 706 transitions. [2023-11-19 08:02:08,746 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 706 transitions. Word has length 56 [2023-11-19 08:02:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:08,747 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 706 transitions. [2023-11-19 08:02:08,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:08,747 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 706 transitions. [2023-11-19 08:02:08,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 08:02:08,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:08,748 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:08,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:08,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:08,961 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:08,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:08,962 INFO L85 PathProgramCache]: Analyzing trace with hash -851919909, now seen corresponding path program 1 times [2023-11-19 08:02:08,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:08,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91723037] [2023-11-19 08:02:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:08,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:08,969 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:08,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538291672] [2023-11-19 08:02:08,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:08,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:08,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:08,970 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:08,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-19 08:02:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:09,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:02:09,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:09,085 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 08:02:09,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 08:02:09,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:09,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91723037] [2023-11-19 08:02:09,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:09,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538291672] [2023-11-19 08:02:09,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538291672] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:09,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:02:09,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-19 08:02:09,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601535044] [2023-11-19 08:02:09,179 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:09,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:02:09,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:09,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:02:09,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:02:09,180 INFO L87 Difference]: Start difference. First operand 536 states and 706 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:09,414 INFO L93 Difference]: Finished difference Result 604 states and 756 transitions. [2023-11-19 08:02:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:02:09,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2023-11-19 08:02:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:09,418 INFO L225 Difference]: With dead ends: 604 [2023-11-19 08:02:09,418 INFO L226 Difference]: Without dead ends: 602 [2023-11-19 08:02:09,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 104 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:02:09,425 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 319 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:09,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 241 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:02:09,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-11-19 08:02:09,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 537. [2023-11-19 08:02:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 483 states have (on average 1.4161490683229814) internal successors, (684), 522 states have internal predecessors, (684), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 08:02:09,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 704 transitions. [2023-11-19 08:02:09,458 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 704 transitions. Word has length 56 [2023-11-19 08:02:09,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:09,458 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 704 transitions. [2023-11-19 08:02:09,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:02:09,459 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 704 transitions. [2023-11-19 08:02:09,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 08:02:09,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:09,460 INFO L195 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:09,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:09,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-19 08:02:09,677 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:09,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:09,677 INFO L85 PathProgramCache]: Analyzing trace with hash -639713327, now seen corresponding path program 1 times [2023-11-19 08:02:09,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:09,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048630417] [2023-11-19 08:02:09,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:09,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:09,684 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:09,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800969506] [2023-11-19 08:02:09,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:09,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:09,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:09,686 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:09,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-19 08:02:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:09,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 08:02:09,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:10,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:10,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:10,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048630417] [2023-11-19 08:02:10,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:10,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800969506] [2023-11-19 08:02:10,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800969506] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:10,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:02:10,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-19 08:02:10,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080750515] [2023-11-19 08:02:10,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:10,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 08:02:10,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:10,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 08:02:10,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:02:10,679 INFO L87 Difference]: Start difference. First operand 537 states and 704 transitions. Second operand has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:18,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:18,070 INFO L93 Difference]: Finished difference Result 636 states and 782 transitions. [2023-11-19 08:02:18,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 08:02:18,071 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2023-11-19 08:02:18,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:18,074 INFO L225 Difference]: With dead ends: 636 [2023-11-19 08:02:18,074 INFO L226 Difference]: Without dead ends: 632 [2023-11-19 08:02:18,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=187, Invalid=463, Unknown=0, NotChecked=0, Total=650 [2023-11-19 08:02:18,075 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1042 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:18,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 332 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-19 08:02:18,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2023-11-19 08:02:18,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 563. [2023-11-19 08:02:18,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 509 states have (on average 1.3909626719056976) internal successors, (708), 548 states have internal predecessors, (708), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 08:02:18,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 728 transitions. [2023-11-19 08:02:18,104 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 728 transitions. Word has length 57 [2023-11-19 08:02:18,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:18,105 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 728 transitions. [2023-11-19 08:02:18,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:18,105 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 728 transitions. [2023-11-19 08:02:18,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 08:02:18,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:18,106 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:18,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:18,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:18,326 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:18,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:18,326 INFO L85 PathProgramCache]: Analyzing trace with hash 680331035, now seen corresponding path program 1 times [2023-11-19 08:02:18,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:18,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543516968] [2023-11-19 08:02:18,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:18,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:18,331 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:18,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928244546] [2023-11-19 08:02:18,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:18,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:18,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:18,333 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:18,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-19 08:02:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:18,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 08:02:18,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:18,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:18,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:18,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543516968] [2023-11-19 08:02:18,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:18,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928244546] [2023-11-19 08:02:18,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928244546] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:18,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:02:18,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2023-11-19 08:02:18,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357364035] [2023-11-19 08:02:18,730 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:18,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 08:02:18,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:18,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 08:02:18,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:02:18,731 INFO L87 Difference]: Start difference. First operand 563 states and 728 transitions. Second operand has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:19,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:19,973 INFO L93 Difference]: Finished difference Result 795 states and 919 transitions. [2023-11-19 08:02:19,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 08:02:19,974 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2023-11-19 08:02:19,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:19,979 INFO L225 Difference]: With dead ends: 795 [2023-11-19 08:02:19,979 INFO L226 Difference]: Without dead ends: 794 [2023-11-19 08:02:19,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=227, Invalid=475, Unknown=0, NotChecked=0, Total=702 [2023-11-19 08:02:19,980 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 1162 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:19,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 571 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 08:02:19,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2023-11-19 08:02:20,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 617. [2023-11-19 08:02:20,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 562 states have (on average 1.393238434163701) internal successors, (783), 601 states have internal predecessors, (783), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:02:20,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 805 transitions. [2023-11-19 08:02:20,021 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 805 transitions. Word has length 57 [2023-11-19 08:02:20,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:20,022 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 805 transitions. [2023-11-19 08:02:20,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:20,022 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 805 transitions. [2023-11-19 08:02:20,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 08:02:20,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:20,023 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:20,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:20,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:20,237 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:20,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:20,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1643723421, now seen corresponding path program 1 times [2023-11-19 08:02:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:20,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898196291] [2023-11-19 08:02:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:20,249 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:20,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698492593] [2023-11-19 08:02:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:20,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:20,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:20,253 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:20,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-19 08:02:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:20,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:20,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:20,373 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:20,479 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:20,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:20,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898196291] [2023-11-19 08:02:20,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:20,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698492593] [2023-11-19 08:02:20,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698492593] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:20,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:02:20,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 08:02:20,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807194587] [2023-11-19 08:02:20,481 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:20,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:02:20,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:20,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:02:20,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:02:20,482 INFO L87 Difference]: Start difference. First operand 617 states and 805 transitions. Second operand has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:20,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:20,843 INFO L93 Difference]: Finished difference Result 685 states and 889 transitions. [2023-11-19 08:02:20,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:02:20,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2023-11-19 08:02:20,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:20,847 INFO L225 Difference]: With dead ends: 685 [2023-11-19 08:02:20,847 INFO L226 Difference]: Without dead ends: 683 [2023-11-19 08:02:20,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:02:20,847 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 358 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:20,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 306 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:02:20,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-11-19 08:02:20,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 615. [2023-11-19 08:02:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 562 states have (on average 1.3701067615658362) internal successors, (770), 599 states have internal predecessors, (770), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:02:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 792 transitions. [2023-11-19 08:02:20,887 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 792 transitions. Word has length 58 [2023-11-19 08:02:20,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:20,887 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 792 transitions. [2023-11-19 08:02:20,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:20,888 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 792 transitions. [2023-11-19 08:02:20,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 08:02:20,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:20,889 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:20,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:21,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:21,109 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:21,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:21,109 INFO L85 PathProgramCache]: Analyzing trace with hash -384574325, now seen corresponding path program 1 times [2023-11-19 08:02:21,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:21,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004251279] [2023-11-19 08:02:21,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:21,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:21,116 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:21,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147539475] [2023-11-19 08:02:21,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:21,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:21,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:21,118 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:21,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-19 08:02:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:21,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 08:02:21,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:21,381 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:21,570 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:21,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:21,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004251279] [2023-11-19 08:02:21,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:21,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147539475] [2023-11-19 08:02:21,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147539475] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:21,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:02:21,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2023-11-19 08:02:21,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239345235] [2023-11-19 08:02:21,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:21,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 08:02:21,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:21,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 08:02:21,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:02:21,573 INFO L87 Difference]: Start difference. First operand 615 states and 792 transitions. Second operand has 13 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:22,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:22,888 INFO L93 Difference]: Finished difference Result 785 states and 898 transitions. [2023-11-19 08:02:22,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-19 08:02:22,889 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2023-11-19 08:02:22,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:22,893 INFO L225 Difference]: With dead ends: 785 [2023-11-19 08:02:22,893 INFO L226 Difference]: Without dead ends: 783 [2023-11-19 08:02:22,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=443, Unknown=0, NotChecked=0, Total=650 [2023-11-19 08:02:22,894 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 1031 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:22,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 499 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 08:02:22,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-11-19 08:02:22,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 615. [2023-11-19 08:02:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 562 states have (on average 1.3558718861209964) internal successors, (762), 599 states have internal predecessors, (762), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:02:22,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 784 transitions. [2023-11-19 08:02:22,935 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 784 transitions. Word has length 58 [2023-11-19 08:02:22,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:22,936 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 784 transitions. [2023-11-19 08:02:22,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:22,936 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 784 transitions. [2023-11-19 08:02:22,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 08:02:22,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:22,937 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:22,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:23,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:23,153 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:23,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:23,153 INFO L85 PathProgramCache]: Analyzing trace with hash 963097885, now seen corresponding path program 1 times [2023-11-19 08:02:23,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:23,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658898920] [2023-11-19 08:02:23,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:23,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:23,165 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:23,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470075725] [2023-11-19 08:02:23,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:23,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:23,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:23,167 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:23,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-19 08:02:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:23,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 08:02:23,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:23,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:24,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:24,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658898920] [2023-11-19 08:02:24,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:24,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470075725] [2023-11-19 08:02:24,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470075725] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:24,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:02:24,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-19 08:02:24,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116464195] [2023-11-19 08:02:24,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:24,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-19 08:02:24,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:24,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-19 08:02:24,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2023-11-19 08:02:24,573 INFO L87 Difference]: Start difference. First operand 615 states and 784 transitions. Second operand has 24 states, 23 states have (on average 4.608695652173913) internal successors, (106), 24 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:29,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:29,810 INFO L93 Difference]: Finished difference Result 744 states and 890 transitions. [2023-11-19 08:02:29,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-19 08:02:29,812 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.608695652173913) internal successors, (106), 24 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 59 [2023-11-19 08:02:29,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:29,816 INFO L225 Difference]: With dead ends: 744 [2023-11-19 08:02:29,816 INFO L226 Difference]: Without dead ends: 742 [2023-11-19 08:02:29,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=541, Invalid=2321, Unknown=0, NotChecked=0, Total=2862 [2023-11-19 08:02:29,818 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 838 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 2164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:29,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 609 Invalid, 2164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-19 08:02:29,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-11-19 08:02:29,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 617. [2023-11-19 08:02:29,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 564 states have (on average 1.351063829787234) internal successors, (762), 601 states have internal predecessors, (762), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:02:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 784 transitions. [2023-11-19 08:02:29,860 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 784 transitions. Word has length 59 [2023-11-19 08:02:29,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:29,860 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 784 transitions. [2023-11-19 08:02:29,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.608695652173913) internal successors, (106), 24 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 08:02:29,860 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 784 transitions. [2023-11-19 08:02:29,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 08:02:29,861 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:29,861 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:29,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-19 08:02:30,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:30,075 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2023-11-19 08:02:30,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:30,075 INFO L85 PathProgramCache]: Analyzing trace with hash -208736563, now seen corresponding path program 1 times [2023-11-19 08:02:30,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:30,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348981638] [2023-11-19 08:02:30,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:30,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:30,085 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:02:30,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838896291] [2023-11-19 08:02:30,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:30,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:30,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:30,086 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:30,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69498654-5b23-4022-a19b-6ea3763e9e61/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-19 08:02:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:30,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 08:02:30,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:30,576 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:30,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:31,046 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:31,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:31,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348981638] [2023-11-19 08:02:31,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:02:31,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838896291] [2023-11-19 08:02:31,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838896291] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:31,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:02:31,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-11-19 08:02:31,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677378301] [2023-11-19 08:02:31,048 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:31,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-19 08:02:31,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:31,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-19 08:02:31,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2023-11-19 08:02:31,050 INFO L87 Difference]: Start difference. First operand 617 states and 784 transitions. Second operand has 18 states, 17 states have (on average 6.588235294117647) internal successors, (112), 18 states have internal predecessors, (112), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)