./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl --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 f7b1141c3157e34a4974729c197a93a4b99ad75fc020122df5d99d43bcc85e27 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:21:59,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:21:59,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:21:59,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:21:59,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:21:59,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:21:59,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:21:59,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:21:59,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:21:59,269 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:21:59,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:21:59,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:21:59,272 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:21:59,274 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:21:59,274 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:21:59,274 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:21:59,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:21:59,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:21:59,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:21:59,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:21:59,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:21:59,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:21:59,278 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:21:59,278 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:21:59,279 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:21:59,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:21:59,280 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:21:59,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:21:59,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:21:59,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:21:59,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:59,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:21:59,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:21:59,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:21:59,285 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:21:59,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:21:59,285 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:21:59,286 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:21:59,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:21:59,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:21:59,286 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:21:59,287 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_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7b1141c3157e34a4974729c197a93a4b99ad75fc020122df5d99d43bcc85e27 [2023-11-12 02:21:59,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:21:59,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:21:59,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:21:59,715 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:21:59,716 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:21:59,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2023-11-12 02:22:03,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:22:03,403 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:22:03,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2023-11-12 02:22:03,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/data/b11bb7c05/a1be5f192bd84ce08310329b5289c76f/FLAG20c488bed [2023-11-12 02:22:03,433 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/data/b11bb7c05/a1be5f192bd84ce08310329b5289c76f [2023-11-12 02:22:03,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:22:03,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:22:03,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:03,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:22:03,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:22:03,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:03" (1/1) ... [2023-11-12 02:22:03,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e4d27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:03, skipping insertion in model container [2023-11-12 02:22:03,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:03" (1/1) ... [2023-11-12 02:22:03,491 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:22:03,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:03,971 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:22:04,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:04,138 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:22:04,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04 WrapperNode [2023-11-12 02:22:04,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:04,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:04,142 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:22:04,142 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:22:04,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,223 INFO L138 Inliner]: procedures = 126, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 98 [2023-11-12 02:22:04,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:04,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:22:04,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:22:04,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:22:04,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:22:04,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:22:04,265 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:22:04,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:22:04,266 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (1/1) ... [2023-11-12 02:22:04,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:04,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:04,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:22:04,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:22:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:22:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:22:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:22:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:22:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:22:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:22:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:22:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:22:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:22:04,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:22:04,525 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:22:04,528 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:22:04,764 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:22:04,771 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:22:04,772 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:22:04,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:04 BoogieIcfgContainer [2023-11-12 02:22:04,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:22:04,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:22:04,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:22:04,782 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:22:04,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:22:03" (1/3) ... [2023-11-12 02:22:04,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a1fb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:04, skipping insertion in model container [2023-11-12 02:22:04,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:04" (2/3) ... [2023-11-12 02:22:04,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a1fb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:04, skipping insertion in model container [2023-11-12 02:22:04,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:04" (3/3) ... [2023-11-12 02:22:04,787 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0232_1-2.i [2023-11-12 02:22:04,811 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:22:04,812 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 02:22:04,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:22:04,903 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;@d24d841, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:22:04,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-12 02:22:04,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:04,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 02:22:04,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:04,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 02:22:04,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:04,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:04,932 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2023-11-12 02:22:04,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:04,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419001639] [2023-11-12 02:22:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:04,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:05,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:05,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419001639] [2023-11-12 02:22:05,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419001639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:05,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:05,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:22:05,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601888835] [2023-11-12 02:22:05,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:05,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:05,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:05,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:05,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:05,398 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:05,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:05,494 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2023-11-12 02:22:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:05,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-12 02:22:05,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:05,507 INFO L225 Difference]: With dead ends: 49 [2023-11-12 02:22:05,508 INFO L226 Difference]: Without dead ends: 29 [2023-11-12 02:22:05,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:05,516 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 3 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:05,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 84 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:05,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-12 02:22:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-12 02:22:05,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:05,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-12 02:22:05,560 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 4 [2023-11-12 02:22:05,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:05,560 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-12 02:22:05,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:05,561 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-12 02:22:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 02:22:05,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:05,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:05,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:22:05,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:05,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:05,564 INFO L85 PathProgramCache]: Analyzing trace with hash 262867306, now seen corresponding path program 1 times [2023-11-12 02:22:05,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:05,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254506504] [2023-11-12 02:22:05,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:05,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:06,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:06,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254506504] [2023-11-12 02:22:06,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254506504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:06,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:06,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:22:06,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636840000] [2023-11-12 02:22:06,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:06,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:22:06,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:06,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:22:06,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:06,124 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:06,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:06,263 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2023-11-12 02:22:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:22:06,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-12 02:22:06,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:06,266 INFO L225 Difference]: With dead ends: 56 [2023-11-12 02:22:06,267 INFO L226 Difference]: Without dead ends: 32 [2023-11-12 02:22:06,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:22:06,278 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:06,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 91 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:06,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-12 02:22:06,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2023-11-12 02:22:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.5) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-11-12 02:22:06,292 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 9 [2023-11-12 02:22:06,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:06,293 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-11-12 02:22:06,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:06,294 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-11-12 02:22:06,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 02:22:06,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:06,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:06,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:22:06,296 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:06,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:06,309 INFO L85 PathProgramCache]: Analyzing trace with hash 262926888, now seen corresponding path program 1 times [2023-11-12 02:22:06,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:06,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958196367] [2023-11-12 02:22:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:06,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:06,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:06,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958196367] [2023-11-12 02:22:06,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958196367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:06,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:06,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:22:06,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739400406] [2023-11-12 02:22:06,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:06,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:06,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:06,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:06,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:06,405 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2023-11-12 02:22:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:06,441 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2023-11-12 02:22:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:06,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2023-11-12 02:22:06,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:06,442 INFO L225 Difference]: With dead ends: 36 [2023-11-12 02:22:06,442 INFO L226 Difference]: Without dead ends: 34 [2023-11-12 02:22:06,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:06,445 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:06,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 70 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:06,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-12 02:22:06,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-12 02:22:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:06,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2023-11-12 02:22:06,451 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 9 [2023-11-12 02:22:06,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:06,452 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2023-11-12 02:22:06,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2023-11-12 02:22:06,452 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2023-11-12 02:22:06,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:22:06,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:06,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:06,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:22:06,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:06,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:06,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1061283570, now seen corresponding path program 1 times [2023-11-12 02:22:06,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:06,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102949356] [2023-11-12 02:22:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:06,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:06,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:06,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:06,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102949356] [2023-11-12 02:22:06,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102949356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:06,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:06,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:22:06,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073716340] [2023-11-12 02:22:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:06,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:22:06,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:06,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:22:06,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:22:06,516 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:06,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:06,526 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2023-11-12 02:22:06,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:22:06,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-12 02:22:06,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:06,528 INFO L225 Difference]: With dead ends: 34 [2023-11-12 02:22:06,528 INFO L226 Difference]: Without dead ends: 33 [2023-11-12 02:22:06,529 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 [2023-11-12 02:22:06,530 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:06,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:06,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-12 02:22:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-12 02:22:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:06,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2023-11-12 02:22:06,537 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 14 [2023-11-12 02:22:06,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:06,538 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2023-11-12 02:22:06,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:06,538 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2023-11-12 02:22:06,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:22:06,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:06,539 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:06,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:22:06,540 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:06,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:06,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1061284532, now seen corresponding path program 1 times [2023-11-12 02:22:06,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:06,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974611490] [2023-11-12 02:22:06,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:06,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:06,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:06,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:06,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974611490] [2023-11-12 02:22:06,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974611490] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:06,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322854067] [2023-11-12 02:22:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:06,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:06,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:06,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:06,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:22:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:06,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:22:06,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:06,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:06,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322854067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:06,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:22:06,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2023-11-12 02:22:06,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82465197] [2023-11-12 02:22:06,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:06,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:22:06,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:06,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:22:06,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:22:06,866 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:06,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:06,910 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2023-11-12 02:22:06,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:06,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-12 02:22:06,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:06,912 INFO L225 Difference]: With dead ends: 33 [2023-11-12 02:22:06,912 INFO L226 Difference]: Without dead ends: 32 [2023-11-12 02:22:06,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:22:06,914 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 20 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:06,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 61 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:06,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-12 02:22:06,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-12 02:22:06,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2023-11-12 02:22:06,921 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 14 [2023-11-12 02:22:06,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:06,921 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2023-11-12 02:22:06,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2023-11-12 02:22:06,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:22:06,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:06,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:06,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:07,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:07,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:07,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:07,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1459947628, now seen corresponding path program 1 times [2023-11-12 02:22:07,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:07,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602867900] [2023-11-12 02:22:07,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:07,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:07,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:07,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:07,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602867900] [2023-11-12 02:22:07,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602867900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:07,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:07,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:22:07,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028119968] [2023-11-12 02:22:07,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:07,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:22:07,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:07,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:22:07,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:22:07,249 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:07,320 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2023-11-12 02:22:07,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:22:07,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-12 02:22:07,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:07,322 INFO L225 Difference]: With dead ends: 54 [2023-11-12 02:22:07,323 INFO L226 Difference]: Without dead ends: 53 [2023-11-12 02:22:07,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:22:07,324 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 23 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:07,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 87 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:07,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-12 02:22:07,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 37. [2023-11-12 02:22:07,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 36 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2023-11-12 02:22:07,332 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 15 [2023-11-12 02:22:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:07,333 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2023-11-12 02:22:07,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-11-12 02:22:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:22:07,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:07,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:07,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:22:07,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:07,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:07,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1459941446, now seen corresponding path program 1 times [2023-11-12 02:22:07,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:07,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434337108] [2023-11-12 02:22:07,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:07,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:07,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:07,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:07,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434337108] [2023-11-12 02:22:07,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434337108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:07,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:07,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:22:07,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833765058] [2023-11-12 02:22:07,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:07,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:22:07,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:07,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:22:07,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:07,431 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:07,482 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2023-11-12 02:22:07,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:22:07,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-12 02:22:07,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:07,485 INFO L225 Difference]: With dead ends: 53 [2023-11-12 02:22:07,485 INFO L226 Difference]: Without dead ends: 48 [2023-11-12 02:22:07,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:22:07,487 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 20 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:07,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 87 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:07,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-12 02:22:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37. [2023-11-12 02:22:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2023-11-12 02:22:07,495 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 15 [2023-11-12 02:22:07,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:07,495 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2023-11-12 02:22:07,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2023-11-12 02:22:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:22:07,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:07,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:07,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:22:07,497 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:07,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:07,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1459917836, now seen corresponding path program 1 times [2023-11-12 02:22:07,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:07,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761858726] [2023-11-12 02:22:07,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:07,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:07,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:07,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761858726] [2023-11-12 02:22:07,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761858726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:07,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:07,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:22:07,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342706881] [2023-11-12 02:22:07,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:07,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:07,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:07,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:07,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:07,557 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:07,579 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2023-11-12 02:22:07,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-12 02:22:07,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:07,581 INFO L225 Difference]: With dead ends: 37 [2023-11-12 02:22:07,581 INFO L226 Difference]: Without dead ends: 36 [2023-11-12 02:22:07,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:07,582 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:07,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 64 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:07,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-12 02:22:07,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-12 02:22:07,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-11-12 02:22:07,589 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 15 [2023-11-12 02:22:07,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:07,589 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-11-12 02:22:07,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,590 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-11-12 02:22:07,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:22:07,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:07,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:07,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:22:07,591 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:07,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:07,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1444637878, now seen corresponding path program 1 times [2023-11-12 02:22:07,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:07,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954587991] [2023-11-12 02:22:07,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:07,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:07,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:07,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:07,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954587991] [2023-11-12 02:22:07,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954587991] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:07,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:07,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:22:07,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262612172] [2023-11-12 02:22:07,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:07,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:22:07,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:07,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:22:07,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:22:07,661 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:07,671 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2023-11-12 02:22:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:22:07,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-12 02:22:07,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:07,673 INFO L225 Difference]: With dead ends: 36 [2023-11-12 02:22:07,673 INFO L226 Difference]: Without dead ends: 35 [2023-11-12 02:22:07,673 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 [2023-11-12 02:22:07,674 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:07,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 42 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:07,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-12 02:22:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-12 02:22:07,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2023-11-12 02:22:07,680 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 17 [2023-11-12 02:22:07,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:07,680 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2023-11-12 02:22:07,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-11-12 02:22:07,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:22:07,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:07,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:07,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:22:07,682 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:07,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:07,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1834101343, now seen corresponding path program 1 times [2023-11-12 02:22:07,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:07,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445629156] [2023-11-12 02:22:07,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:07,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:07,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:07,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:07,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445629156] [2023-11-12 02:22:07,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445629156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:07,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:07,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:22:07,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129884215] [2023-11-12 02:22:07,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:07,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:22:07,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:07,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:22:07,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:22:07,813 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:07,884 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2023-11-12 02:22:07,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:22:07,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-12 02:22:07,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:07,885 INFO L225 Difference]: With dead ends: 50 [2023-11-12 02:22:07,885 INFO L226 Difference]: Without dead ends: 42 [2023-11-12 02:22:07,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:22:07,887 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:07,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 101 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:07,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-12 02:22:07,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2023-11-12 02:22:07,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2023-11-12 02:22:07,892 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 18 [2023-11-12 02:22:07,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:07,893 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2023-11-12 02:22:07,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:07,893 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-11-12 02:22:07,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 02:22:07,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:07,894 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:07,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:22:07,894 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:07,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:07,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1529834374, now seen corresponding path program 1 times [2023-11-12 02:22:07,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:07,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061845640] [2023-11-12 02:22:07,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:07,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:08,018 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:08,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:08,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061845640] [2023-11-12 02:22:08,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061845640] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:08,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798768227] [2023-11-12 02:22:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:08,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:08,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:08,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:08,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:22:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:08,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:22:08,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:08,288 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:08,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:08,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798768227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:08,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:22:08,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-12 02:22:08,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586141365] [2023-11-12 02:22:08,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:08,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:22:08,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:08,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:22:08,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:22:08,291 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:08,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:08,327 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-11-12 02:22:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:08,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-12 02:22:08,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:08,328 INFO L225 Difference]: With dead ends: 32 [2023-11-12 02:22:08,328 INFO L226 Difference]: Without dead ends: 31 [2023-11-12 02:22:08,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:22:08,330 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 13 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:08,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 36 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:08,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-12 02:22:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-12 02:22:08,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:08,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-11-12 02:22:08,335 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 19 [2023-11-12 02:22:08,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:08,335 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-11-12 02:22:08,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:08,336 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-11-12 02:22:08,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:22:08,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:08,337 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:08,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:08,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:08,544 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:08,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:08,545 INFO L85 PathProgramCache]: Analyzing trace with hash -180225285, now seen corresponding path program 1 times [2023-11-12 02:22:08,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:08,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267964222] [2023-11-12 02:22:08,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:08,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:08,664 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:08,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:08,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267964222] [2023-11-12 02:22:08,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267964222] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:08,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212927438] [2023-11-12 02:22:08,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:08,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:08,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:08,667 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:08,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:22:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:08,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:22:08,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:08,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:08,974 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:08,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212927438] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:08,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:22:08,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-12 02:22:08,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879545871] [2023-11-12 02:22:08,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:08,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:22:08,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:08,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:22:08,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:22:08,978 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 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) [2023-11-12 02:22:09,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:09,084 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2023-11-12 02:22:09,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:22:09,085 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 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 20 [2023-11-12 02:22:09,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:09,086 INFO L225 Difference]: With dead ends: 68 [2023-11-12 02:22:09,086 INFO L226 Difference]: Without dead ends: 67 [2023-11-12 02:22:09,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:22:09,088 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:09,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 114 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:09,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-12 02:22:09,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2023-11-12 02:22:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 58 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:09,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2023-11-12 02:22:09,097 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 20 [2023-11-12 02:22:09,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:09,097 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2023-11-12 02:22:09,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 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) [2023-11-12 02:22:09,098 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2023-11-12 02:22:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:22:09,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:09,099 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:09,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:09,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:09,306 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:09,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1985811558, now seen corresponding path program 1 times [2023-11-12 02:22:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:09,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069901940] [2023-11-12 02:22:09,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:09,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:09,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069901940] [2023-11-12 02:22:09,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069901940] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:09,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840892211] [2023-11-12 02:22:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:09,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:09,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:09,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:09,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:22:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:09,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:22:09,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:09,773 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:09,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840892211] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:09,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:22:09,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-11-12 02:22:09,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948270022] [2023-11-12 02:22:09,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:09,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:22:09,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:09,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:22:09,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:22:09,861 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 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) [2023-11-12 02:22:10,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:10,000 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2023-11-12 02:22:10,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:22:10,001 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 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 25 [2023-11-12 02:22:10,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:10,001 INFO L225 Difference]: With dead ends: 66 [2023-11-12 02:22:10,002 INFO L226 Difference]: Without dead ends: 65 [2023-11-12 02:22:10,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:22:10,003 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 53 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:10,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 98 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:10,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-12 02:22:10,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 58. [2023-11-12 02:22:10,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 57 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:10,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2023-11-12 02:22:10,011 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 25 [2023-11-12 02:22:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:10,011 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2023-11-12 02:22:10,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 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) [2023-11-12 02:22:10,012 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2023-11-12 02:22:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:22:10,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:10,013 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:10,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:10,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-12 02:22:10,221 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:10,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:10,222 INFO L85 PathProgramCache]: Analyzing trace with hash 432669773, now seen corresponding path program 1 times [2023-11-12 02:22:10,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:10,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158403646] [2023-11-12 02:22:10,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:10,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:10,530 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:10,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:10,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158403646] [2023-11-12 02:22:10,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158403646] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:10,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816218284] [2023-11-12 02:22:10,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:10,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:10,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:10,533 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:10,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:22:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:10,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:22:10,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:10,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:10,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816218284] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:10,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:22:10,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2023-11-12 02:22:10,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872964406] [2023-11-12 02:22:10,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:10,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-12 02:22:10,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:10,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 02:22:10,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:22:10,945 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 18 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:11,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:11,121 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2023-11-12 02:22:11,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:22:11,121 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-12 02:22:11,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:11,122 INFO L225 Difference]: With dead ends: 64 [2023-11-12 02:22:11,122 INFO L226 Difference]: Without dead ends: 51 [2023-11-12 02:22:11,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2023-11-12 02:22:11,123 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 54 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:11,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 80 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:11,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-12 02:22:11,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-12 02:22:11,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.1) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:11,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2023-11-12 02:22:11,130 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 28 [2023-11-12 02:22:11,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:11,130 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2023-11-12 02:22:11,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:11,130 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2023-11-12 02:22:11,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:22:11,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:11,132 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-12 02:22:11,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:11,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-12 02:22:11,338 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:11,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:11,339 INFO L85 PathProgramCache]: Analyzing trace with hash -776926779, now seen corresponding path program 2 times [2023-11-12 02:22:11,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:11,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411012296] [2023-11-12 02:22:11,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:11,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:11,775 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:11,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:11,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411012296] [2023-11-12 02:22:11,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411012296] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:11,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987599906] [2023-11-12 02:22:11,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:22:11,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:11,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:11,777 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:11,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:22:12,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:22:12,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:22:12,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 02:22:12,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:12,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:12,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987599906] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:12,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:22:12,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-11-12 02:22:12,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388817066] [2023-11-12 02:22:12,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:12,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-12 02:22:12,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:12,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-12 02:22:12,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:22:12,363 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 24 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:12,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:12,582 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2023-11-12 02:22:12,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-12 02:22:12,583 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 24 states have internal predecessors, (108), 0 states have call successors, (0), 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 50 [2023-11-12 02:22:12,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:12,584 INFO L225 Difference]: With dead ends: 112 [2023-11-12 02:22:12,584 INFO L226 Difference]: Without dead ends: 111 [2023-11-12 02:22:12,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2023-11-12 02:22:12,586 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 67 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:12,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 114 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:12,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-12 02:22:12,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-12 02:22:12,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.1) internal successors, (121), 110 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2023-11-12 02:22:12,596 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 50 [2023-11-12 02:22:12,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:12,596 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2023-11-12 02:22:12,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 24 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:12,597 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2023-11-12 02:22:12,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-12 02:22:12,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:12,600 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2023-11-12 02:22:12,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:12,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-12 02:22:12,808 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:12,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:12,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1073197351, now seen corresponding path program 3 times [2023-11-12 02:22:12,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:12,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586849277] [2023-11-12 02:22:12,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:12,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:14,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:14,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586849277] [2023-11-12 02:22:14,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586849277] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:14,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854326361] [2023-11-12 02:22:14,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:22:14,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:14,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:14,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:14,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:22:45,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-12 02:22:45,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:22:45,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-12 02:22:45,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:45,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:46,740 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:46,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854326361] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:46,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:22:46,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2023-11-12 02:22:46,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694128505] [2023-11-12 02:22:46,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:46,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-12 02:22:46,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:46,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-12 02:22:46,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-11-12 02:22:46,745 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 48 states, 47 states have (on average 4.851063829787234) internal successors, (228), 48 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:47,383 INFO L93 Difference]: Finished difference Result 232 states and 265 transitions. [2023-11-12 02:22:47,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-12 02:22:47,384 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.851063829787234) internal successors, (228), 48 states have internal predecessors, (228), 0 states have call successors, (0), 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 110 [2023-11-12 02:22:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:47,386 INFO L225 Difference]: With dead ends: 232 [2023-11-12 02:22:47,386 INFO L226 Difference]: Without dead ends: 231 [2023-11-12 02:22:47,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1382, Invalid=3448, Unknown=0, NotChecked=0, Total=4830 [2023-11-12 02:22:47,390 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 188 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:47,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 209 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:47,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-12 02:22:47,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2023-11-12 02:22:47,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 1.1) internal successors, (253), 230 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:47,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 253 transitions. [2023-11-12 02:22:47,414 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 253 transitions. Word has length 110 [2023-11-12 02:22:47,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:47,416 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 253 transitions. [2023-11-12 02:22:47,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.851063829787234) internal successors, (228), 48 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:47,417 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 253 transitions. [2023-11-12 02:22:47,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-12 02:22:47,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:47,434 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2023-11-12 02:22:47,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-12 02:22:47,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-12 02:22:47,635 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 02:22:47,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:47,635 INFO L85 PathProgramCache]: Analyzing trace with hash 22345473, now seen corresponding path program 4 times [2023-11-12 02:22:47,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:47,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922741351] [2023-11-12 02:22:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:47,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2486 backedges. 0 proven. 2486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:51,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:51,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922741351] [2023-11-12 02:22:51,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922741351] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:51,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440710773] [2023-11-12 02:22:51,582 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:22:51,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:51,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:51,584 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:51,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9e7923-7d34-4442-8504-8c9d525cf0ac/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process