./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/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_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/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_94149d07-885c-4dea-aaf6-a9c044efd979/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 ebfcdae9f2d92c4e39230ecf30ad4ac0897188e9aff6dcbde95509d87ea826ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:33,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:33,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:42:33,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:33,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:33,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:33,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:33,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:33,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:33,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:33,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:33,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:33,426 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:33,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:33,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:33,429 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:33,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:33,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:33,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:33,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:33,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:33,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:33,434 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:42:33,434 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:42:33,435 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:33,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:33,436 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:33,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:33,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:33,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:33,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:33,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:33,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:33,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:33,447 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:33,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:33,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:33,447 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:33,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:33,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:33,448 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:33,450 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_94149d07-885c-4dea-aaf6-a9c044efd979/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebfcdae9f2d92c4e39230ecf30ad4ac0897188e9aff6dcbde95509d87ea826ad [2023-11-19 07:42:33,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:33,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:33,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:33,813 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:33,813 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:33,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound10.c [2023-11-19 07:42:36,936 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:37,117 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:37,118 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound10.c [2023-11-19 07:42:37,126 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/data/d84dbb455/df8a2c8f601b4507926f6fb79adb136e/FLAG9459a3a29 [2023-11-19 07:42:37,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/data/d84dbb455/df8a2c8f601b4507926f6fb79adb136e [2023-11-19 07:42:37,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:37,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:37,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:37,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:37,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:37,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2523c259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37, skipping insertion in model container [2023-11-19 07:42:37,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,176 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:37,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:37,383 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:37,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:37,427 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:37,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37 WrapperNode [2023-11-19 07:42:37,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:37,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:37,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:37,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:37,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,493 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2023-11-19 07:42:37,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:37,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:37,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:37,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:37,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,522 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:37,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:37,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:37,526 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:37,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (1/1) ... [2023-11-19 07:42:37,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:37,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:37,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:37,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:37,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:42:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:42:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:42:37,685 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:37,688 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:42:38,494 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:42:38,508 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:42:38,511 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:42:38,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:38 BoogieIcfgContainer [2023-11-19 07:42:38,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:42:38,525 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:42:38,525 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:42:38,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:42:38,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:37" (1/3) ... [2023-11-19 07:42:38,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487a3e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:38, skipping insertion in model container [2023-11-19 07:42:38,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:37" (2/3) ... [2023-11-19 07:42:38,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487a3e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:42:38, skipping insertion in model container [2023-11-19 07:42:38,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:42:38" (3/3) ... [2023-11-19 07:42:38,536 INFO L112 eAbstractionObserver]: Analyzing ICFG ps6-ll_unwindbound10.c [2023-11-19 07:42:38,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:42:38,558 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 104 error locations. [2023-11-19 07:42:38,632 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:42:38,640 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;@3dbfa6b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:42:38,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2023-11-19 07:42:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 119 states have (on average 1.915966386554622) internal successors, (228), 223 states have internal predecessors, (228), 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 07:42:38,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:42:38,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:38,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:42:38,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:38,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash 889508776, now seen corresponding path program 1 times [2023-11-19 07:42:38,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:38,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627456785] [2023-11-19 07:42:38,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:38,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:38,864 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 07:42:38,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:38,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627456785] [2023-11-19 07:42:38,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627456785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:38,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:38,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:38,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506894680] [2023-11-19 07:42:38,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:38,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:42:38,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:38,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:42:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:42:38,943 INFO L87 Difference]: Start difference. First operand has 228 states, 119 states have (on average 1.915966386554622) internal successors, (228), 223 states have internal predecessors, (228), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 07:42:39,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:39,027 INFO L93 Difference]: Finished difference Result 427 states and 466 transitions. [2023-11-19 07:42:39,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:42:39,030 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 07:42:39,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:39,043 INFO L225 Difference]: With dead ends: 427 [2023-11-19 07:42:39,044 INFO L226 Difference]: Without dead ends: 196 [2023-11-19 07:42:39,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:42:39,060 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:39,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:39,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-19 07:42:39,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2023-11-19 07:42:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 114 states have (on average 1.7017543859649122) internal successors, (194), 192 states have internal predecessors, (194), 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 07:42:39,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 198 transitions. [2023-11-19 07:42:39,124 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 198 transitions. Word has length 6 [2023-11-19 07:42:39,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:39,125 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 198 transitions. [2023-11-19 07:42:39,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 07:42:39,125 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 198 transitions. [2023-11-19 07:42:39,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:42:39,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:39,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:42:39,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:42:39,127 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:39,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:39,128 INFO L85 PathProgramCache]: Analyzing trace with hash 889568358, now seen corresponding path program 1 times [2023-11-19 07:42:39,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:39,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100787806] [2023-11-19 07:42:39,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:39,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:39,260 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 07:42:39,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:39,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100787806] [2023-11-19 07:42:39,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100787806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:39,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:39,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:39,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612305935] [2023-11-19 07:42:39,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:39,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:42:39,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:39,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:42:39,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:42:39,267 INFO L87 Difference]: Start difference. First operand 196 states and 198 transitions. Second operand has 4 states, 3 states have (on average 2.0) 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 07:42:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:39,357 INFO L93 Difference]: Finished difference Result 287 states and 289 transitions. [2023-11-19 07:42:39,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:42:39,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) 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 07:42:39,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:39,360 INFO L225 Difference]: With dead ends: 287 [2023-11-19 07:42:39,360 INFO L226 Difference]: Without dead ends: 200 [2023-11-19 07:42:39,361 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 07:42:39,363 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 4 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 575 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 07:42:39,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 575 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:39,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-19 07:42:39,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2023-11-19 07:42:39,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 118 states have (on average 1.6779661016949152) internal successors, (198), 196 states have internal predecessors, (198), 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 07:42:39,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 202 transitions. [2023-11-19 07:42:39,381 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 202 transitions. Word has length 6 [2023-11-19 07:42:39,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:39,382 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 202 transitions. [2023-11-19 07:42:39,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) 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 07:42:39,382 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 202 transitions. [2023-11-19 07:42:39,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:42:39,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:39,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:39,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:42:39,383 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:39,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:39,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1182784684, now seen corresponding path program 1 times [2023-11-19 07:42:39,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:39,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756756058] [2023-11-19 07:42:39,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:39,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:39,472 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 07:42:39,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:39,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756756058] [2023-11-19 07:42:39,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756756058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:39,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:39,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:39,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570459194] [2023-11-19 07:42:39,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:39,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:39,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:39,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:39,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:39,475 INFO L87 Difference]: Start difference. First operand 200 states and 202 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:39,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:39,953 INFO L93 Difference]: Finished difference Result 364 states and 368 transitions. [2023-11-19 07:42:39,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:39,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 07:42:39,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:39,966 INFO L225 Difference]: With dead ends: 364 [2023-11-19 07:42:39,966 INFO L226 Difference]: Without dead ends: 300 [2023-11-19 07:42:39,968 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 07:42:39,975 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 102 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:39,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 143 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:42:39,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-19 07:42:40,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 290. [2023-11-19 07:42:40,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 207 states have (on average 1.434782608695652) internal successors, (297), 285 states have internal predecessors, (297), 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 07:42:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 303 transitions. [2023-11-19 07:42:40,015 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 303 transitions. Word has length 9 [2023-11-19 07:42:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:40,015 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 303 transitions. [2023-11-19 07:42:40,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 303 transitions. [2023-11-19 07:42:40,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 07:42:40,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:40,017 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] [2023-11-19 07:42:40,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:42:40,018 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:40,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:40,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1158660914, now seen corresponding path program 1 times [2023-11-19 07:42:40,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:40,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744475515] [2023-11-19 07:42:40,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:40,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:40,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:40,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [528234267] [2023-11-19 07:42:40,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:40,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:40,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:40,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:40,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:42:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:40,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:42:40,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:40,232 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 07:42:40,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:40,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:40,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744475515] [2023-11-19 07:42:40,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:40,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528234267] [2023-11-19 07:42:40,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528234267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:40,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:40,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:40,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944296036] [2023-11-19 07:42:40,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:40,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:40,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:40,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:40,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:40,243 INFO L87 Difference]: Start difference. First operand 290 states and 303 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 07:42:40,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:40,332 INFO L93 Difference]: Finished difference Result 314 states and 321 transitions. [2023-11-19 07:42:40,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:40,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-11-19 07:42:40,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:40,336 INFO L225 Difference]: With dead ends: 314 [2023-11-19 07:42:40,336 INFO L226 Difference]: Without dead ends: 312 [2023-11-19 07:42:40,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 07:42:40,347 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 76 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:40,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 357 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:42:40,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-19 07:42:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 290. [2023-11-19 07:42:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 207 states have (on average 1.4251207729468598) internal successors, (295), 285 states have internal predecessors, (295), 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 07:42:40,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 301 transitions. [2023-11-19 07:42:40,368 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 301 transitions. Word has length 47 [2023-11-19 07:42:40,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:40,369 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 301 transitions. [2023-11-19 07:42:40,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 07:42:40,369 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 301 transitions. [2023-11-19 07:42:40,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 07:42:40,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:40,371 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] [2023-11-19 07:42:40,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:40,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:40,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:40,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:40,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1558750099, now seen corresponding path program 1 times [2023-11-19 07:42:40,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:40,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341897547] [2023-11-19 07:42:40,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:40,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:40,611 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:40,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79028233] [2023-11-19 07:42:40,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:40,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:40,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:40,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:40,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:42:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:40,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:42:40,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:40,806 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 07:42:40,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:40,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:40,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341897547] [2023-11-19 07:42:40,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:40,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79028233] [2023-11-19 07:42:40,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79028233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:40,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:40,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:40,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58707449] [2023-11-19 07:42:40,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:40,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:40,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:40,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:40,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:40,812 INFO L87 Difference]: Start difference. First operand 290 states and 301 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:40,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:40,893 INFO L93 Difference]: Finished difference Result 316 states and 319 transitions. [2023-11-19 07:42:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:40,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-11-19 07:42:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:40,896 INFO L225 Difference]: With dead ends: 316 [2023-11-19 07:42:40,897 INFO L226 Difference]: Without dead ends: 311 [2023-11-19 07:42:40,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 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 07:42:40,898 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 71 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:40,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 361 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:42:40,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-19 07:42:40,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 289. [2023-11-19 07:42:40,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 206 states have (on average 1.4077669902912622) internal successors, (290), 284 states have internal predecessors, (290), 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 07:42:40,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 296 transitions. [2023-11-19 07:42:40,928 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 296 transitions. Word has length 48 [2023-11-19 07:42:40,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:40,928 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 296 transitions. [2023-11-19 07:42:40,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:42:40,929 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 296 transitions. [2023-11-19 07:42:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:42:40,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:40,933 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] [2023-11-19 07:42:40,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:41,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:41,150 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:41,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:41,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1076612948, now seen corresponding path program 1 times [2023-11-19 07:42:41,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:41,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44659831] [2023-11-19 07:42:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:41,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:41,182 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:41,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1791594562] [2023-11-19 07:42:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:41,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:41,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:41,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:41,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:42:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:41,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:42:41,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:41,394 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 07:42:41,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:41,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:41,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44659831] [2023-11-19 07:42:41,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:41,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791594562] [2023-11-19 07:42:41,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791594562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:41,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:41,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:42:41,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400166630] [2023-11-19 07:42:41,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:41,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:42:41,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:41,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:42:41,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:42:41,398 INFO L87 Difference]: Start difference. First operand 289 states and 296 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 07:42:44,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:42:44,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:44,066 INFO L93 Difference]: Finished difference Result 311 states and 314 transitions. [2023-11-19 07:42:44,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:42:44,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-11-19 07:42:44,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:44,069 INFO L225 Difference]: With dead ends: 311 [2023-11-19 07:42:44,069 INFO L226 Difference]: Without dead ends: 268 [2023-11-19 07:42:44,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 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 07:42:44,071 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 107 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:44,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 308 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 279 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2023-11-19 07:42:44,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-19 07:42:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 248. [2023-11-19 07:42:44,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 165 states have (on average 1.496969696969697) internal successors, (247), 243 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 07:42:44,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 253 transitions. [2023-11-19 07:42:44,090 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 253 transitions. Word has length 49 [2023-11-19 07:42:44,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:44,090 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 253 transitions. [2023-11-19 07:42:44,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 07:42:44,091 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 253 transitions. [2023-11-19 07:42:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 07:42:44,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:44,092 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, 1] [2023-11-19 07:42:44,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:44,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:42:44,307 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:44,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:44,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1058568341, now seen corresponding path program 1 times [2023-11-19 07:42:44,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:44,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356624705] [2023-11-19 07:42:44,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:44,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:44,322 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:44,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471271305] [2023-11-19 07:42:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:44,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:44,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:44,324 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:44,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:42:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:44,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:42:44,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:44,519 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 07:42:44,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:44,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:44,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356624705] [2023-11-19 07:42:44,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:44,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471271305] [2023-11-19 07:42:44,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471271305] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:44,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:44,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:44,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603467906] [2023-11-19 07:42:44,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:44,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:44,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:44,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:44,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:44,525 INFO L87 Difference]: Start difference. First operand 248 states and 253 transitions. Second operand has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 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 07:42:44,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:44,540 INFO L93 Difference]: Finished difference Result 248 states and 253 transitions. [2023-11-19 07:42:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:44,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 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 57 [2023-11-19 07:42:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:44,543 INFO L225 Difference]: With dead ends: 248 [2023-11-19 07:42:44,543 INFO L226 Difference]: Without dead ends: 247 [2023-11-19 07:42:44,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 07:42:44,545 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 138 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:44,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 199 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:44,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-19 07:42:44,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2023-11-19 07:42:44,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 165 states have (on average 1.4848484848484849) internal successors, (245), 242 states have internal predecessors, (245), 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 07:42:44,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 251 transitions. [2023-11-19 07:42:44,558 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 251 transitions. Word has length 57 [2023-11-19 07:42:44,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:44,559 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 251 transitions. [2023-11-19 07:42:44,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 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 07:42:44,560 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 251 transitions. [2023-11-19 07:42:44,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:42:44,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:44,569 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, 1, 1] [2023-11-19 07:42:44,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:44,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:42:44,790 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:44,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:44,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1544119650, now seen corresponding path program 1 times [2023-11-19 07:42:44,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:44,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370397664] [2023-11-19 07:42:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:44,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:44,806 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:44,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347932162] [2023-11-19 07:42:44,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:44,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:44,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:44,808 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:44,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:42:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:44,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:42:44,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:44,950 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 07:42:44,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:44,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:44,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370397664] [2023-11-19 07:42:44,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:44,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347932162] [2023-11-19 07:42:44,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347932162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:44,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:44,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:44,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763166357] [2023-11-19 07:42:44,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:44,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:44,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:44,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:44,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:44,953 INFO L87 Difference]: Start difference. First operand 247 states and 251 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 07:42:44,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:44,971 INFO L93 Difference]: Finished difference Result 248 states and 251 transitions. [2023-11-19 07:42:44,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:44,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 58 [2023-11-19 07:42:44,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:44,974 INFO L225 Difference]: With dead ends: 248 [2023-11-19 07:42:44,974 INFO L226 Difference]: Without dead ends: 247 [2023-11-19 07:42:44,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 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 07:42:44,975 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 0 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:44,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 384 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:44,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-19 07:42:44,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2023-11-19 07:42:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 165 states have (on average 1.4787878787878788) internal successors, (244), 242 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 07:42:44,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 250 transitions. [2023-11-19 07:42:44,985 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 250 transitions. Word has length 58 [2023-11-19 07:42:44,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:44,986 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 250 transitions. [2023-11-19 07:42:44,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 07:42:44,986 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 250 transitions. [2023-11-19 07:42:44,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:42:44,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:44,987 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:45,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:45,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:42:45,198 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:45,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:45,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1007821026, now seen corresponding path program 1 times [2023-11-19 07:42:45,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:45,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075249010] [2023-11-19 07:42:45,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:45,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:45,212 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:45,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648542589] [2023-11-19 07:42:45,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:45,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:45,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:45,214 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:45,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:42:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:45,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:42:45,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:45,394 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 07:42:45,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:45,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:45,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075249010] [2023-11-19 07:42:45,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:45,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648542589] [2023-11-19 07:42:45,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648542589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:45,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:45,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:42:45,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756014231] [2023-11-19 07:42:45,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:45,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:42:45,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:45,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:42:45,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:42:45,397 INFO L87 Difference]: Start difference. First operand 247 states and 250 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 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 07:42:46,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:46,037 INFO L93 Difference]: Finished difference Result 434 states and 440 transitions. [2023-11-19 07:42:46,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:42:46,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 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 62 [2023-11-19 07:42:46,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:46,040 INFO L225 Difference]: With dead ends: 434 [2023-11-19 07:42:46,041 INFO L226 Difference]: Without dead ends: 369 [2023-11-19 07:42:46,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:42:46,043 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 121 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:46,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 162 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:42:46,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-11-19 07:42:46,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 354. [2023-11-19 07:42:46,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 270 states have (on average 1.3518518518518519) internal successors, (365), 347 states have internal predecessors, (365), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:42:46,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 375 transitions. [2023-11-19 07:42:46,064 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 375 transitions. Word has length 62 [2023-11-19 07:42:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:46,065 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 375 transitions. [2023-11-19 07:42:46,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 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 07:42:46,066 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 375 transitions. [2023-11-19 07:42:46,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 07:42:46,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:46,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:46,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:46,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:46,290 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:46,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:46,291 INFO L85 PathProgramCache]: Analyzing trace with hash -809386143, now seen corresponding path program 1 times [2023-11-19 07:42:46,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:46,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275607816] [2023-11-19 07:42:46,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:46,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:46,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:46,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466185727] [2023-11-19 07:42:46,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:46,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:46,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:46,309 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:46,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:42:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:46,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:42:46,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:46,512 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 07:42:46,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:46,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:46,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275607816] [2023-11-19 07:42:46,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:46,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466185727] [2023-11-19 07:42:46,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466185727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:46,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:46,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:42:46,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874217400] [2023-11-19 07:42:46,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:46,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:42:46,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:46,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:42:46,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:42:46,520 INFO L87 Difference]: Start difference. First operand 354 states and 375 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 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 07:42:49,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:42:49,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:49,028 INFO L93 Difference]: Finished difference Result 356 states and 375 transitions. [2023-11-19 07:42:49,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:42:49,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 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 69 [2023-11-19 07:42:49,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:49,031 INFO L225 Difference]: With dead ends: 356 [2023-11-19 07:42:49,031 INFO L226 Difference]: Without dead ends: 355 [2023-11-19 07:42:49,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 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 07:42:49,032 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 58 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:49,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 338 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 246 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 07:42:49,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-11-19 07:42:49,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 354. [2023-11-19 07:42:49,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 270 states have (on average 1.348148148148148) internal successors, (364), 347 states have internal predecessors, (364), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:42:49,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 374 transitions. [2023-11-19 07:42:49,050 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 374 transitions. Word has length 69 [2023-11-19 07:42:49,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:49,051 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 374 transitions. [2023-11-19 07:42:49,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 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 07:42:49,051 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 374 transitions. [2023-11-19 07:42:49,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 07:42:49,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:49,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:49,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:49,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:42:49,273 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:49,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:49,274 INFO L85 PathProgramCache]: Analyzing trace with hash 678833514, now seen corresponding path program 1 times [2023-11-19 07:42:49,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:49,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211662641] [2023-11-19 07:42:49,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:49,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:49,296 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:49,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332510863] [2023-11-19 07:42:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:49,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:49,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:49,298 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:49,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:42:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:49,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:42:49,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:49,467 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 07:42:49,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:49,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:49,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211662641] [2023-11-19 07:42:49,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:49,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332510863] [2023-11-19 07:42:49,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332510863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:49,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:49,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:42:49,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956495438] [2023-11-19 07:42:49,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:49,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:42:49,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:49,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:42:49,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:42:49,470 INFO L87 Difference]: Start difference. First operand 354 states and 374 transitions. Second operand has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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 07:42:49,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:49,811 INFO L93 Difference]: Finished difference Result 355 states and 374 transitions. [2023-11-19 07:42:49,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:42:49,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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 70 [2023-11-19 07:42:49,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:49,814 INFO L225 Difference]: With dead ends: 355 [2023-11-19 07:42:49,814 INFO L226 Difference]: Without dead ends: 354 [2023-11-19 07:42:49,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 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 07:42:49,815 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 50 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:49,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 347 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:42:49,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-19 07:42:49,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2023-11-19 07:42:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 270 states have (on average 1.3444444444444446) internal successors, (363), 347 states have internal predecessors, (363), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:42:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 373 transitions. [2023-11-19 07:42:49,830 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 373 transitions. Word has length 70 [2023-11-19 07:42:49,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:49,831 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 373 transitions. [2023-11-19 07:42:49,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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 07:42:49,831 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 373 transitions. [2023-11-19 07:42:49,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 07:42:49,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:49,832 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, 1, 1, 1, 1, 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 07:42:49,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:50,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:50,053 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:50,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:50,053 INFO L85 PathProgramCache]: Analyzing trace with hash -476020628, now seen corresponding path program 1 times [2023-11-19 07:42:50,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:50,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103524503] [2023-11-19 07:42:50,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:50,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:50,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:50,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757198597] [2023-11-19 07:42:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:50,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:50,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:50,080 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:50,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:42:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:50,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:42:50,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:50,264 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 07:42:50,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:50,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:50,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103524503] [2023-11-19 07:42:50,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:50,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757198597] [2023-11-19 07:42:50,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757198597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:50,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:50,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:42:50,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753183346] [2023-11-19 07:42:50,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:50,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:42:50,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:50,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:42:50,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:42:50,267 INFO L87 Difference]: Start difference. First operand 354 states and 373 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 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 07:42:50,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:50,295 INFO L93 Difference]: Finished difference Result 354 states and 373 transitions. [2023-11-19 07:42:50,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:42:50,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 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 72 [2023-11-19 07:42:50,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:50,298 INFO L225 Difference]: With dead ends: 354 [2023-11-19 07:42:50,298 INFO L226 Difference]: Without dead ends: 353 [2023-11-19 07:42:50,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:42:50,299 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 136 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:50,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 379 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:50,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-19 07:42:50,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2023-11-19 07:42:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 270 states have (on average 1.337037037037037) internal successors, (361), 346 states have internal predecessors, (361), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:42:50,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 371 transitions. [2023-11-19 07:42:50,313 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 371 transitions. Word has length 72 [2023-11-19 07:42:50,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:50,313 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 371 transitions. [2023-11-19 07:42:50,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 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 07:42:50,314 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 371 transitions. [2023-11-19 07:42:50,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 07:42:50,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:50,315 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, 1, 1, 1, 1, 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 07:42:50,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:50,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:50,530 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:50,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:50,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1871737532, now seen corresponding path program 1 times [2023-11-19 07:42:50,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:50,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380878844] [2023-11-19 07:42:50,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:50,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:50,544 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:50,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205755405] [2023-11-19 07:42:50,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:50,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:50,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:50,546 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:50,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:42:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:50,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:42:50,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:50,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:50,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:50,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380878844] [2023-11-19 07:42:50,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:50,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205755405] [2023-11-19 07:42:50,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205755405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:50,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:50,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:42:50,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807567411] [2023-11-19 07:42:50,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:50,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:42:50,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:50,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:42:50,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:42:50,718 INFO L87 Difference]: Start difference. First operand 353 states and 371 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 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 07:42:50,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:50,765 INFO L93 Difference]: Finished difference Result 483 states and 506 transitions. [2023-11-19 07:42:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:42:50,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 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 73 [2023-11-19 07:42:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:50,769 INFO L225 Difference]: With dead ends: 483 [2023-11-19 07:42:50,769 INFO L226 Difference]: Without dead ends: 482 [2023-11-19 07:42:50,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:42:50,770 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 131 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:50,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 890 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:50,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-11-19 07:42:50,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 442. [2023-11-19 07:42:50,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 357 states have (on average 1.3473389355742298) internal successors, (481), 434 states have internal predecessors, (481), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:42:50,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 495 transitions. [2023-11-19 07:42:50,789 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 495 transitions. Word has length 73 [2023-11-19 07:42:50,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:50,789 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 495 transitions. [2023-11-19 07:42:50,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 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 07:42:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 495 transitions. [2023-11-19 07:42:50,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:42:50,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:50,791 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:50,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:51,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:51,006 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr96ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:51,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:51,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1637859655, now seen corresponding path program 1 times [2023-11-19 07:42:51,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:51,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414205110] [2023-11-19 07:42:51,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:51,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:51,023 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:51,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771140466] [2023-11-19 07:42:51,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:51,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:51,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:51,025 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:51,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:42:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:51,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:42:51,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:51,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:42:51,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:51,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:51,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414205110] [2023-11-19 07:42:51,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:51,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771140466] [2023-11-19 07:42:51,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771140466] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:42:51,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:42:51,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-19 07:42:51,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110065108] [2023-11-19 07:42:51,348 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:42:51,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:42:51,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:51,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:42:51,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:42:51,350 INFO L87 Difference]: Start difference. First operand 442 states and 495 transitions. Second operand has 10 states, 10 states have (on average 18.3) internal successors, (183), 10 states have internal predecessors, (183), 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 07:42:51,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:51,492 INFO L93 Difference]: Finished difference Result 759 states and 802 transitions. [2023-11-19 07:42:51,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:42:51,492 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.3) internal successors, (183), 10 states have internal predecessors, (183), 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 113 [2023-11-19 07:42:51,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:51,498 INFO L225 Difference]: With dead ends: 759 [2023-11-19 07:42:51,498 INFO L226 Difference]: Without dead ends: 629 [2023-11-19 07:42:51,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 216 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 07:42:51,500 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 340 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1006 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 07:42:51,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1006 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:51,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2023-11-19 07:42:51,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 530. [2023-11-19 07:42:51,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 441 states have (on average 1.4557823129251701) internal successors, (642), 518 states have internal predecessors, (642), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:42:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 658 transitions. [2023-11-19 07:42:51,530 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 658 transitions. Word has length 113 [2023-11-19 07:42:51,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:51,530 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 658 transitions. [2023-11-19 07:42:51,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.3) internal successors, (183), 10 states have internal predecessors, (183), 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 07:42:51,531 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 658 transitions. [2023-11-19 07:42:51,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:42:51,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:51,532 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2023-11-19 07:42:51,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:51,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:42:51,746 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:51,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:51,746 INFO L85 PathProgramCache]: Analyzing trace with hash -188695060, now seen corresponding path program 1 times [2023-11-19 07:42:51,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:51,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042671501] [2023-11-19 07:42:51,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:51,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:51,762 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:51,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143384906] [2023-11-19 07:42:51,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:51,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:51,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:51,764 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:51,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:42:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:51,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:42:51,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:52,194 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:52,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:42:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:52,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:52,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042671501] [2023-11-19 07:42:52,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:52,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143384906] [2023-11-19 07:42:52,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143384906] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:42:52,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:42:52,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 07:42:52,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312205045] [2023-11-19 07:42:52,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:42:52,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:42:52,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:52,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:42:52,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:42:52,567 INFO L87 Difference]: Start difference. First operand 530 states and 658 transitions. Second operand has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 8 states have internal predecessors, (216), 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 07:42:53,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:53,912 INFO L93 Difference]: Finished difference Result 567 states and 658 transitions. [2023-11-19 07:42:53,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:42:53,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 8 states have internal predecessors, (216), 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 113 [2023-11-19 07:42:53,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:53,917 INFO L225 Difference]: With dead ends: 567 [2023-11-19 07:42:53,918 INFO L226 Difference]: Without dead ends: 558 [2023-11-19 07:42:53,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:42:53,919 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 601 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:53,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 155 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:42:53,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-19 07:42:53,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 527. [2023-11-19 07:42:53,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 441 states have (on average 1.4195011337868482) internal successors, (626), 515 states have internal predecessors, (626), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:42:53,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 642 transitions. [2023-11-19 07:42:53,952 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 642 transitions. Word has length 113 [2023-11-19 07:42:53,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:53,953 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 642 transitions. [2023-11-19 07:42:53,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 8 states have internal predecessors, (216), 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 07:42:53,953 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 642 transitions. [2023-11-19 07:42:53,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-19 07:42:53,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:53,957 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-19 07:42:53,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:54,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 07:42:54,174 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:54,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:54,174 INFO L85 PathProgramCache]: Analyzing trace with hash -947321970, now seen corresponding path program 1 times [2023-11-19 07:42:54,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:54,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721770347] [2023-11-19 07:42:54,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:54,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:54,195 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:54,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608850507] [2023-11-19 07:42:54,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:54,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:54,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:54,197 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:54,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:42:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:54,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:42:54,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:54,673 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:54,673 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:42:55,206 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-19 07:42:55,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:55,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721770347] [2023-11-19 07:42:55,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:55,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608850507] [2023-11-19 07:42:55,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608850507] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:42:55,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:42:55,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-19 07:42:55,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674626475] [2023-11-19 07:42:55,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:55,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:42:55,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:55,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:42:55,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:42:55,210 INFO L87 Difference]: Start difference. First operand 527 states and 642 transitions. Second operand has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 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 07:42:55,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:55,897 INFO L93 Difference]: Finished difference Result 527 states and 642 transitions. [2023-11-19 07:42:55,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:42:55,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 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 115 [2023-11-19 07:42:55,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:55,902 INFO L225 Difference]: With dead ends: 527 [2023-11-19 07:42:55,902 INFO L226 Difference]: Without dead ends: 525 [2023-11-19 07:42:55,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:42:55,903 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 168 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:55,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 45 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:42:55,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-11-19 07:42:55,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2023-11-19 07:42:55,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 441 states have (on average 1.4036281179138321) internal successors, (619), 513 states have internal predecessors, (619), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:42:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 635 transitions. [2023-11-19 07:42:55,945 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 635 transitions. Word has length 115 [2023-11-19 07:42:55,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:55,945 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 635 transitions. [2023-11-19 07:42:55,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 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 07:42:55,946 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 635 transitions. [2023-11-19 07:42:55,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:42:55,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:55,947 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-19 07:42:55,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:56,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 07:42:56,170 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:56,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:56,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1490519972, now seen corresponding path program 1 times [2023-11-19 07:42:56,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:56,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76366866] [2023-11-19 07:42:56,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:56,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:56,190 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:56,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [266077512] [2023-11-19 07:42:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:56,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:56,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:56,194 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:56,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:42:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:56,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:42:56,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:42:56,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:42:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:42:56,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:56,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76366866] [2023-11-19 07:42:56,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:56,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266077512] [2023-11-19 07:42:56,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266077512] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:42:56,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:42:56,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:42:56,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257779330] [2023-11-19 07:42:56,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:42:56,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:42:56,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:56,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:42:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:42:56,689 INFO L87 Difference]: Start difference. First operand 525 states and 635 transitions. Second operand has 6 states, 5 states have (on average 45.6) internal successors, (228), 6 states have internal predecessors, (228), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:42:56,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:56,763 INFO L93 Difference]: Finished difference Result 761 states and 798 transitions. [2023-11-19 07:42:56,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:42:56,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 45.6) internal successors, (228), 6 states have internal predecessors, (228), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 124 [2023-11-19 07:42:56,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:56,769 INFO L225 Difference]: With dead ends: 761 [2023-11-19 07:42:56,769 INFO L226 Difference]: Without dead ends: 760 [2023-11-19 07:42:56,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:42:56,771 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 444 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:56,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 825 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:56,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2023-11-19 07:42:56,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 571. [2023-11-19 07:42:56,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 486 states have (on average 1.4238683127572016) internal successors, (692), 558 states have internal predecessors, (692), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:42:56,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 710 transitions. [2023-11-19 07:42:56,803 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 710 transitions. Word has length 124 [2023-11-19 07:42:56,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:56,803 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 710 transitions. [2023-11-19 07:42:56,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 45.6) internal successors, (228), 6 states have internal predecessors, (228), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:42:56,804 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 710 transitions. [2023-11-19 07:42:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-19 07:42:56,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:56,806 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-19 07:42:56,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:57,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:42:57,028 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:57,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:57,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1928783128, now seen corresponding path program 1 times [2023-11-19 07:42:57,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:57,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726203891] [2023-11-19 07:42:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:57,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:57,050 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:57,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100069031] [2023-11-19 07:42:57,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:57,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:57,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:57,066 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:57,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:42:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:57,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:42:57,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:42:57,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:42:57,627 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:42:57,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:57,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726203891] [2023-11-19 07:42:57,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:57,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100069031] [2023-11-19 07:42:57,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100069031] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:42:57,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:42:57,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 07:42:57,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252747960] [2023-11-19 07:42:57,629 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:42:57,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:42:57,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:57,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:42:57,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:42:57,631 INFO L87 Difference]: Start difference. First operand 571 states and 710 transitions. Second operand has 8 states, 7 states have (on average 33.714285714285715) internal successors, (236), 8 states have internal predecessors, (236), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:42:58,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:58,532 INFO L93 Difference]: Finished difference Result 628 states and 716 transitions. [2023-11-19 07:42:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:42:58,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 33.714285714285715) internal successors, (236), 8 states have internal predecessors, (236), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 128 [2023-11-19 07:42:58,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:58,537 INFO L225 Difference]: With dead ends: 628 [2023-11-19 07:42:58,537 INFO L226 Difference]: Without dead ends: 563 [2023-11-19 07:42:58,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:42:58,538 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 577 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:58,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 173 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:42:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-19 07:42:58,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 549. [2023-11-19 07:42:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 482 states have (on average 1.2323651452282158) internal successors, (594), 537 states have internal predecessors, (594), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:42:58,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 612 transitions. [2023-11-19 07:42:58,569 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 612 transitions. Word has length 128 [2023-11-19 07:42:58,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:58,569 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 612 transitions. [2023-11-19 07:42:58,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 33.714285714285715) internal successors, (236), 8 states have internal predecessors, (236), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:42:58,570 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 612 transitions. [2023-11-19 07:42:58,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-19 07:42:58,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:58,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:58,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:58,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:42:58,794 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:42:58,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:58,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1903018352, now seen corresponding path program 1 times [2023-11-19 07:42:58,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:58,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533740912] [2023-11-19 07:42:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:58,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:58,810 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:58,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1269852033] [2023-11-19 07:42:58,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:58,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:58,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:58,812 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:58,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:42:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:58,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:42:58,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:42:59,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:00,724 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:43:00,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:00,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533740912] [2023-11-19 07:43:00,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:00,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269852033] [2023-11-19 07:43:00,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269852033] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:43:00,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:43:00,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-19 07:43:00,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392921996] [2023-11-19 07:43:00,725 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:00,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:43:00,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:00,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:43:00,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:43:00,729 INFO L87 Difference]: Start difference. First operand 549 states and 612 transitions. Second operand has 11 states, 10 states have (on average 25.2) internal successors, (252), 11 states have internal predecessors, (252), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:43:04,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:43:05,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:43:07,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:07,178 INFO L93 Difference]: Finished difference Result 563 states and 615 transitions. [2023-11-19 07:43:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:43:07,179 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 25.2) internal successors, (252), 11 states have internal predecessors, (252), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 136 [2023-11-19 07:43:07,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:07,183 INFO L225 Difference]: With dead ends: 563 [2023-11-19 07:43:07,183 INFO L226 Difference]: Without dead ends: 562 [2023-11-19 07:43:07,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:43:07,184 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 561 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 88 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:07,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 133 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1055 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2023-11-19 07:43:07,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-11-19 07:43:07,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 548. [2023-11-19 07:43:07,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 482 states have (on average 1.2261410788381744) internal successors, (591), 536 states have internal predecessors, (591), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:43:07,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 609 transitions. [2023-11-19 07:43:07,221 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 609 transitions. Word has length 136 [2023-11-19 07:43:07,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:07,221 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 609 transitions. [2023-11-19 07:43:07,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 25.2) internal successors, (252), 11 states have internal predecessors, (252), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:43:07,222 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 609 transitions. [2023-11-19 07:43:07,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-19 07:43:07,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:07,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:43:07,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-19 07:43:07,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:07,438 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:43:07,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:07,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1508503075, now seen corresponding path program 1 times [2023-11-19 07:43:07,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:07,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316110740] [2023-11-19 07:43:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:07,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:07,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:07,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671457846] [2023-11-19 07:43:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:07,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:07,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:07,468 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:07,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 07:43:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:43:07,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:08,184 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:08,184 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:08,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316110740] [2023-11-19 07:43:08,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:08,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671457846] [2023-11-19 07:43:08,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671457846] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:08,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:43:08,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-19 07:43:08,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377454037] [2023-11-19 07:43:08,640 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:08,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:08,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:08,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:08,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:43:08,642 INFO L87 Difference]: Start difference. First operand 548 states and 609 transitions. Second operand has 5 states, 4 states have (on average 39.5) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:43:08,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:08,996 INFO L93 Difference]: Finished difference Result 548 states and 609 transitions. [2023-11-19 07:43:08,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:43:08,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 39.5) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 170 [2023-11-19 07:43:08,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:09,000 INFO L225 Difference]: With dead ends: 548 [2023-11-19 07:43:09,001 INFO L226 Difference]: Without dead ends: 535 [2023-11-19 07:43:09,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:43:09,002 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 142 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:09,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 66 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:43:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-19 07:43:09,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-11-19 07:43:09,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 482 states have (on average 1.1742738589211619) internal successors, (566), 523 states have internal predecessors, (566), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:43:09,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 584 transitions. [2023-11-19 07:43:09,037 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 584 transitions. Word has length 170 [2023-11-19 07:43:09,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:09,037 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 584 transitions. [2023-11-19 07:43:09,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 39.5) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:43:09,038 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 584 transitions. [2023-11-19 07:43:09,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-19 07:43:09,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:09,040 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:43:09,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:09,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:09,254 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:43:09,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:09,254 INFO L85 PathProgramCache]: Analyzing trace with hash -481044668, now seen corresponding path program 1 times [2023-11-19 07:43:09,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:09,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665802180] [2023-11-19 07:43:09,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:09,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:09,273 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:09,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329465769] [2023-11-19 07:43:09,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:09,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:09,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:09,275 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:09,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 07:43:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:09,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:43:09,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:09,934 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:10,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:10,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665802180] [2023-11-19 07:43:10,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:10,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329465769] [2023-11-19 07:43:10,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329465769] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:10,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:43:10,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-19 07:43:10,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242906200] [2023-11-19 07:43:10,060 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:10,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:43:10,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:10,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:43:10,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:43:10,062 INFO L87 Difference]: Start difference. First operand 535 states and 584 transitions. Second operand has 6 states, 5 states have (on average 31.8) internal successors, (159), 6 states have internal predecessors, (159), 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 07:43:10,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:10,600 INFO L93 Difference]: Finished difference Result 538 states and 586 transitions. [2023-11-19 07:43:10,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:43:10,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.8) internal successors, (159), 6 states have internal predecessors, (159), 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) Word has length 171 [2023-11-19 07:43:10,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:10,604 INFO L225 Difference]: With dead ends: 538 [2023-11-19 07:43:10,605 INFO L226 Difference]: Without dead ends: 492 [2023-11-19 07:43:10,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:43:10,607 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 46 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:10,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 136 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:43:10,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-11-19 07:43:10,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2023-11-19 07:43:10,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 440 states have (on average 1.1886363636363637) internal successors, (523), 480 states have internal predecessors, (523), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:43:10,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 539 transitions. [2023-11-19 07:43:10,644 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 539 transitions. Word has length 171 [2023-11-19 07:43:10,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:10,645 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 539 transitions. [2023-11-19 07:43:10,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.8) internal successors, (159), 6 states have internal predecessors, (159), 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 07:43:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 539 transitions. [2023-11-19 07:43:10,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-19 07:43:10,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:10,648 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:43:10,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:10,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-19 07:43:10,870 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:43:10,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:10,871 INFO L85 PathProgramCache]: Analyzing trace with hash 637870879, now seen corresponding path program 1 times [2023-11-19 07:43:10,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:10,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303533252] [2023-11-19 07:43:10,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:10,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:10,888 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:10,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111797258] [2023-11-19 07:43:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:10,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:10,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:10,890 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:10,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:43:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:11,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:43:11,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:11,646 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 3 proven. 150 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:43:11,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:16,020 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (or (forall ((|v_ULTIMATE.start_main_~y~0#1_231| Int)) (or (< (+ |c_ULTIMATE.start_main_~y~0#1| 1) |v_ULTIMATE.start_main_~y~0#1_231|) (< (* |v_ULTIMATE.start_main_~y~0#1_231| |v_ULTIMATE.start_main_~y~0#1_231| |v_ULTIMATE.start_main_~y~0#1_231| |v_ULTIMATE.start_main_~y~0#1_231| |v_ULTIMATE.start_main_~y~0#1_231|) (+ 768614336404564651 (div (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 5)) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 6)) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 2))) 12))))) (not (= 0 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 7) .cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6)) 12))))) is different from false [2023-11-19 07:43:16,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:16,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303533252] [2023-11-19 07:43:16,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:16,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111797258] [2023-11-19 07:43:16,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111797258] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:16,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:43:16,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-19 07:43:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258275022] [2023-11-19 07:43:16,056 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:16,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:43:16,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:16,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:43:16,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=100, Unknown=1, NotChecked=20, Total=156 [2023-11-19 07:43:16,058 INFO L87 Difference]: Start difference. First operand 492 states and 539 transitions. Second operand has 9 states, 8 states have (on average 22.0) internal successors, (176), 9 states have internal predecessors, (176), 2 states have call successors, (2), 1 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 07:43:17,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:17,044 INFO L93 Difference]: Finished difference Result 502 states and 541 transitions. [2023-11-19 07:43:17,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:43:17,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 22.0) internal successors, (176), 9 states have internal predecessors, (176), 2 states have call successors, (2), 1 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 180 [2023-11-19 07:43:17,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:17,050 INFO L225 Difference]: With dead ends: 502 [2023-11-19 07:43:17,050 INFO L226 Difference]: Without dead ends: 498 [2023-11-19 07:43:17,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=159, Unknown=1, NotChecked=26, Total=240 [2023-11-19 07:43:17,051 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 84 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:17,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 463 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:43:17,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-11-19 07:43:17,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 492. [2023-11-19 07:43:17,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 440 states have (on average 1.1795454545454545) internal successors, (519), 480 states have internal predecessors, (519), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:43:17,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 535 transitions. [2023-11-19 07:43:17,090 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 535 transitions. Word has length 180 [2023-11-19 07:43:17,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:17,091 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 535 transitions. [2023-11-19 07:43:17,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 22.0) internal successors, (176), 9 states have internal predecessors, (176), 2 states have call successors, (2), 1 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 07:43:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 535 transitions. [2023-11-19 07:43:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-19 07:43:17,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:17,094 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:43:17,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:17,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-19 07:43:17,310 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:43:17,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:17,310 INFO L85 PathProgramCache]: Analyzing trace with hash -214865008, now seen corresponding path program 1 times [2023-11-19 07:43:17,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:17,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076757324] [2023-11-19 07:43:17,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:17,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:17,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:17,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371943009] [2023-11-19 07:43:17,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:17,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:17,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:17,331 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:17,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 07:43:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:17,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:43:17,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:17,698 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:17,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:17,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:17,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076757324] [2023-11-19 07:43:17,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:17,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371943009] [2023-11-19 07:43:17,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371943009] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:17,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:43:17,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-19 07:43:17,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903509030] [2023-11-19 07:43:17,785 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:17,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:43:17,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:17,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:43:17,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:43:17,789 INFO L87 Difference]: Start difference. First operand 492 states and 535 transitions. Second operand has 6 states, 5 states have (on average 36.8) internal successors, (184), 6 states have internal predecessors, (184), 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 07:43:18,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:18,452 INFO L93 Difference]: Finished difference Result 580 states and 602 transitions. [2023-11-19 07:43:18,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:43:18,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 36.8) internal successors, (184), 6 states have internal predecessors, (184), 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) Word has length 196 [2023-11-19 07:43:18,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:18,460 INFO L225 Difference]: With dead ends: 580 [2023-11-19 07:43:18,460 INFO L226 Difference]: Without dead ends: 568 [2023-11-19 07:43:18,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:43:18,461 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 151 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:18,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 112 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:43:18,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-11-19 07:43:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 522. [2023-11-19 07:43:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 470 states have (on average 1.1680851063829787) internal successors, (549), 510 states have internal predecessors, (549), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:43:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 565 transitions. [2023-11-19 07:43:18,494 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 565 transitions. Word has length 196 [2023-11-19 07:43:18,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:18,495 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 565 transitions. [2023-11-19 07:43:18,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 36.8) internal successors, (184), 6 states have internal predecessors, (184), 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 07:43:18,495 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 565 transitions. [2023-11-19 07:43:18,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-19 07:43:18,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:18,498 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:43:18,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:18,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-19 07:43:18,719 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:43:18,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:18,720 INFO L85 PathProgramCache]: Analyzing trace with hash -326837326, now seen corresponding path program 1 times [2023-11-19 07:43:18,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:18,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079204983] [2023-11-19 07:43:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:18,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:18,737 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:18,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690295476] [2023-11-19 07:43:18,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:18,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:18,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:18,739 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:18,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-19 07:43:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:18,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:43:18,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:19,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:19,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:19,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079204983] [2023-11-19 07:43:19,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:19,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690295476] [2023-11-19 07:43:19,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690295476] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:43:19,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:43:19,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-19 07:43:19,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52916204] [2023-11-19 07:43:19,855 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:19,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:43:19,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:19,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:43:19,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:43:19,858 INFO L87 Difference]: Start difference. First operand 522 states and 565 transitions. Second operand has 10 states, 9 states have (on average 40.666666666666664) internal successors, (366), 10 states have internal predecessors, (366), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 07:43:21,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:21,009 INFO L93 Difference]: Finished difference Result 570 states and 601 transitions. [2023-11-19 07:43:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:43:21,010 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 40.666666666666664) internal successors, (366), 10 states have internal predecessors, (366), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 198 [2023-11-19 07:43:21,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:21,014 INFO L225 Difference]: With dead ends: 570 [2023-11-19 07:43:21,014 INFO L226 Difference]: Without dead ends: 542 [2023-11-19 07:43:21,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:43:21,016 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 586 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:21,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 285 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:43:21,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-11-19 07:43:21,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 515. [2023-11-19 07:43:21,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 477 states have (on average 1.0859538784067087) internal successors, (518), 503 states have internal predecessors, (518), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:43:21,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 534 transitions. [2023-11-19 07:43:21,056 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 534 transitions. Word has length 198 [2023-11-19 07:43:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:21,057 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 534 transitions. [2023-11-19 07:43:21,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 40.666666666666664) internal successors, (366), 10 states have internal predecessors, (366), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 07:43:21,058 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 534 transitions. [2023-11-19 07:43:21,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-11-19 07:43:21,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:21,062 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 07:43:21,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:21,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-19 07:43:21,278 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:43:21,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:21,278 INFO L85 PathProgramCache]: Analyzing trace with hash 270376702, now seen corresponding path program 2 times [2023-11-19 07:43:21,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:21,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709706814] [2023-11-19 07:43:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:21,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:21,310 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:21,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [934981108] [2023-11-19 07:43:21,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:43:21,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:21,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:21,312 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:21,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-19 07:43:21,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:43:21,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:43:21,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:43:21,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:22,639 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-19 07:43:22,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:22,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:22,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709706814] [2023-11-19 07:43:22,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:43:22,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934981108] [2023-11-19 07:43:22,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934981108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:22,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:22,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:22,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960694536] [2023-11-19 07:43:22,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:22,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:22,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:22,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:22,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:22,646 INFO L87 Difference]: Start difference. First operand 515 states and 534 transitions. Second operand has 5 states, 4 states have (on average 36.25) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:43:22,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:22,994 INFO L93 Difference]: Finished difference Result 518 states and 534 transitions. [2023-11-19 07:43:22,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:43:22,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 36.25) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 237 [2023-11-19 07:43:22,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:22,998 INFO L225 Difference]: With dead ends: 518 [2023-11-19 07:43:22,998 INFO L226 Difference]: Without dead ends: 457 [2023-11-19 07:43:22,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:43:23,000 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 48 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:23,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 95 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:43:23,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-19 07:43:23,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 426. [2023-11-19 07:43:23,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 399 states have (on average 1.055137844611529) internal successors, (421), 416 states have internal predecessors, (421), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:43:23,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 431 transitions. [2023-11-19 07:43:23,031 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 431 transitions. Word has length 237 [2023-11-19 07:43:23,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:23,031 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 431 transitions. [2023-11-19 07:43:23,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 36.25) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:43:23,032 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 431 transitions. [2023-11-19 07:43:23,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-19 07:43:23,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:23,036 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2023-11-19 07:43:23,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:23,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-19 07:43:23,259 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2023-11-19 07:43:23,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:23,260 INFO L85 PathProgramCache]: Analyzing trace with hash -542675803, now seen corresponding path program 2 times [2023-11-19 07:43:23,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:23,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026488485] [2023-11-19 07:43:23,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:23,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:23,277 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:43:23,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449629696] [2023-11-19 07:43:23,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:43:23,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:23,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:23,280 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:23,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94149d07-885c-4dea-aaf6-a9c044efd979/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-19 07:43:23,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:43:23,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:43:23,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 07:43:23,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 6 proven. 318 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 07:43:24,297 INFO L327 TraceCheckSpWp]: Computing backward predicates...