./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU --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 64bit --witnessprinter.graph.data.programhash 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:41,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:41,409 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-31 22:01:41,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:41,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:41,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:41,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:41,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:41,444 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:01:41,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:01:41,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:01:41,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:01:41,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:41,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:41,447 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:41,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:41,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:01:41,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:41,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:41,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:01:41,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:01:41,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:01:41,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:41,453 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:01:41,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:01:41,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:01:41,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:41,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:41,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:41,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:01:41,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:01:41,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:41,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:41,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:01:41,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:01:41,461 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:01:41,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:01:41,462 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:01:41,462 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:01:41,462 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:01:41,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:01:41,465 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_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2024-10-31 22:01:41,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:01:41,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:01:41,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:01:41,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:01:41,885 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:01:41,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c Unable to find full path for "g++" [2024-10-31 22:01:43,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:01:44,193 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:01:44,194 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-10-31 22:01:44,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/data/def72732b/d87dcd16f0064f0ca1914c9857362ca4/FLAG1880899b4 [2024-10-31 22:01:44,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/data/def72732b/d87dcd16f0064f0ca1914c9857362ca4 [2024-10-31 22:01:44,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:01:44,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:01:44,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:44,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:01:44,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:01:44,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b652408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44, skipping insertion in model container [2024-10-31 22:01:44,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,261 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:01:44,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:44,488 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:01:44,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:44,518 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:01:44,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44 WrapperNode [2024-10-31 22:01:44,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:44,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:44,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:01:44,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:01:44,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,536 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,557 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2024-10-31 22:01:44,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:44,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:01:44,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:01:44,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:01:44,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,569 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,575 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:01:44,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:01:44,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:01:44,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:01:44,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:01:44,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (1/1) ... [2024-10-31 22:01:44,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:44,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:44,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:44,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:01:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:01:44,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:01:44,711 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:01:44,713 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:01:44,858 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-31 22:01:44,858 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:01:44,870 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:01:44,870 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:01:44,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:44 BoogieIcfgContainer [2024-10-31 22:01:44,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:01:44,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:01:44,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:01:44,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:01:44,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:01:44" (1/3) ... [2024-10-31 22:01:44,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517b9bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:44, skipping insertion in model container [2024-10-31 22:01:44,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:44" (2/3) ... [2024-10-31 22:01:44,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517b9bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:44, skipping insertion in model container [2024-10-31 22:01:44,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:44" (3/3) ... [2024-10-31 22:01:44,881 INFO L112 eAbstractionObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-10-31 22:01:44,902 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:01:44,902 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-31 22:01:45,043 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:01:45,054 INFO L333 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, 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;@7aff720f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:01:45,054 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:01:45,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 22:01:45,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:45,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:01:45,069 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:45,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:45,077 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2024-10-31 22:01:45,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:45,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52955627] [2024-10-31 22:01:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:45,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:45,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:45,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52955627] [2024-10-31 22:01:45,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52955627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:45,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:45,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:45,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906582145] [2024-10-31 22:01:45,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:45,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:45,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:45,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:45,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:45,378 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:45,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:45,446 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2024-10-31 22:01:45,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:45,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-31 22:01:45,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:45,456 INFO L225 Difference]: With dead ends: 52 [2024-10-31 22:01:45,457 INFO L226 Difference]: Without dead ends: 24 [2024-10-31 22:01:45,460 INFO L431 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 [2024-10-31 22:01:45,463 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:45,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 37 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:45,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-10-31 22:01:45,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2024-10-31 22:01:45,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:45,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-10-31 22:01:45,499 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2024-10-31 22:01:45,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:45,500 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-10-31 22:01:45,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:45,500 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-10-31 22:01:45,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-31 22:01:45,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:45,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:01:45,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:01:45,503 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:45,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:45,504 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2024-10-31 22:01:45,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:45,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120150018] [2024-10-31 22:01:45,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:45,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:45,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:45,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120150018] [2024-10-31 22:01:45,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120150018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:45,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:45,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:45,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406854023] [2024-10-31 22:01:45,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:45,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:45,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:45,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:45,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:45,581 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:45,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:45,624 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2024-10-31 22:01:45,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:45,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-31 22:01:45,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:45,626 INFO L225 Difference]: With dead ends: 23 [2024-10-31 22:01:45,627 INFO L226 Difference]: Without dead ends: 22 [2024-10-31 22:01:45,627 INFO L431 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 [2024-10-31 22:01:45,629 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:45,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:01:45,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-10-31 22:01:45,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-10-31 22:01:45,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:45,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-10-31 22:01:45,636 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 6 [2024-10-31 22:01:45,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:45,636 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-10-31 22:01:45,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:45,637 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-10-31 22:01:45,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:01:45,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:45,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:45,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:01:45,638 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:45,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:45,639 INFO L85 PathProgramCache]: Analyzing trace with hash 124122716, now seen corresponding path program 1 times [2024-10-31 22:01:45,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:45,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640548839] [2024-10-31 22:01:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:45,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:45,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:45,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:45,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640548839] [2024-10-31 22:01:45,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640548839] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:45,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:45,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:01:45,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735454820] [2024-10-31 22:01:45,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:45,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:01:45,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:01:45,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:01:45,769 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:45,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:45,955 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2024-10-31 22:01:45,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:01:45,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:01:45,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:45,958 INFO L225 Difference]: With dead ends: 38 [2024-10-31 22:01:45,958 INFO L226 Difference]: Without dead ends: 37 [2024-10-31 22:01:45,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:01:45,962 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:45,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 26 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:45,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-31 22:01:45,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2024-10-31 22:01:45,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 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) [2024-10-31 22:01:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2024-10-31 22:01:45,974 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 8 [2024-10-31 22:01:45,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:45,975 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2024-10-31 22:01:45,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:45,975 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-10-31 22:01:45,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:01:45,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:45,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:45,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:01:45,977 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:45,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:45,977 INFO L85 PathProgramCache]: Analyzing trace with hash 124122767, now seen corresponding path program 1 times [2024-10-31 22:01:45,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:45,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785276401] [2024-10-31 22:01:45,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:45,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:46,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:46,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785276401] [2024-10-31 22:01:46,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785276401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:46,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:46,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:46,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846105867] [2024-10-31 22:01:46,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:46,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:01:46,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:46,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:46,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:46,086 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:46,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:46,186 INFO L93 Difference]: Finished difference Result 55 states and 74 transitions. [2024-10-31 22:01:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:46,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:01:46,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:46,189 INFO L225 Difference]: With dead ends: 55 [2024-10-31 22:01:46,190 INFO L226 Difference]: Without dead ends: 53 [2024-10-31 22:01:46,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:46,192 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:46,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 31 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:46,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-31 22:01:46,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2024-10-31 22:01:46,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.564102564102564) internal successors, (61), 45 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:46,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2024-10-31 22:01:46,208 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 8 [2024-10-31 22:01:46,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:46,208 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2024-10-31 22:01:46,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:46,208 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2024-10-31 22:01:46,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-31 22:01:46,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:46,209 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:46,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:01:46,210 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:46,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:46,210 INFO L85 PathProgramCache]: Analyzing trace with hash -447163028, now seen corresponding path program 1 times [2024-10-31 22:01:46,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:46,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149780462] [2024-10-31 22:01:46,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:46,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:46,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:46,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149780462] [2024-10-31 22:01:46,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149780462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:46,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:46,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:46,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598039344] [2024-10-31 22:01:46,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:46,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:01:46,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:46,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:46,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:46,292 INFO L87 Difference]: Start difference. First operand 46 states and 61 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) [2024-10-31 22:01:46,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:46,370 INFO L93 Difference]: Finished difference Result 59 states and 78 transitions. [2024-10-31 22:01:46,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:46,371 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 [2024-10-31 22:01:46,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:46,372 INFO L225 Difference]: With dead ends: 59 [2024-10-31 22:01:46,372 INFO L226 Difference]: Without dead ends: 58 [2024-10-31 22:01:46,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:46,374 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:46,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 20 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:46,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-31 22:01:46,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2024-10-31 22:01:46,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.553191489361702) internal successors, (73), 53 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) [2024-10-31 22:01:46,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2024-10-31 22:01:46,389 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 9 [2024-10-31 22:01:46,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:46,390 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2024-10-31 22:01:46,390 INFO L472 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) [2024-10-31 22:01:46,391 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2024-10-31 22:01:46,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-31 22:01:46,391 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:46,392 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:46,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:01:46,392 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:46,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:46,393 INFO L85 PathProgramCache]: Analyzing trace with hash -447161458, now seen corresponding path program 1 times [2024-10-31 22:01:46,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:46,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771635117] [2024-10-31 22:01:46,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:46,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:46,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:46,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:46,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771635117] [2024-10-31 22:01:46,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771635117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:46,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:46,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:46,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811138141] [2024-10-31 22:01:46,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:46,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:01:46,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:46,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:46,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:46,463 INFO L87 Difference]: Start difference. First operand 54 states and 73 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) [2024-10-31 22:01:46,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:46,538 INFO L93 Difference]: Finished difference Result 94 states and 135 transitions. [2024-10-31 22:01:46,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:46,539 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 [2024-10-31 22:01:46,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:46,540 INFO L225 Difference]: With dead ends: 94 [2024-10-31 22:01:46,541 INFO L226 Difference]: Without dead ends: 93 [2024-10-31 22:01:46,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:46,544 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:46,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 28 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:46,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-31 22:01:46,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 86. [2024-10-31 22:01:46,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.5316455696202531) internal successors, (121), 85 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) [2024-10-31 22:01:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2024-10-31 22:01:46,584 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 9 [2024-10-31 22:01:46,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:46,584 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2024-10-31 22:01:46,585 INFO L472 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) [2024-10-31 22:01:46,585 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2024-10-31 22:01:46,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-31 22:01:46,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:46,586 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:46,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:01:46,602 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:46,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:46,603 INFO L85 PathProgramCache]: Analyzing trace with hash -977103247, now seen corresponding path program 1 times [2024-10-31 22:01:46,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:46,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405693825] [2024-10-31 22:01:46,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:46,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:46,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:46,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405693825] [2024-10-31 22:01:46,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405693825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:46,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:46,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:46,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541103732] [2024-10-31 22:01:46,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:46,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:01:46,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:46,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:46,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:46,661 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:46,715 INFO L93 Difference]: Finished difference Result 86 states and 121 transitions. [2024-10-31 22:01:46,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:46,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-31 22:01:46,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:46,717 INFO L225 Difference]: With dead ends: 86 [2024-10-31 22:01:46,717 INFO L226 Difference]: Without dead ends: 85 [2024-10-31 22:01:46,718 INFO L431 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 [2024-10-31 22:01:46,719 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:46,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 17 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:01:46,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-31 22:01:46,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-31 22:01:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.4556962025316456) internal successors, (115), 84 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:46,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 115 transitions. [2024-10-31 22:01:46,737 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 115 transitions. Word has length 10 [2024-10-31 22:01:46,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:46,738 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 115 transitions. [2024-10-31 22:01:46,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:46,738 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 115 transitions. [2024-10-31 22:01:46,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:01:46,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:46,739 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:46,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:01:46,740 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:46,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:46,741 INFO L85 PathProgramCache]: Analyzing trace with hash -225429520, now seen corresponding path program 1 times [2024-10-31 22:01:46,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:46,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002839297] [2024-10-31 22:01:46,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:46,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:46,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:46,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:46,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002839297] [2024-10-31 22:01:46,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002839297] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:46,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:46,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:46,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313371334] [2024-10-31 22:01:46,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:46,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:46,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:46,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:46,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:46,814 INFO L87 Difference]: Start difference. First operand 85 states and 115 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:46,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:46,842 INFO L93 Difference]: Finished difference Result 85 states and 115 transitions. [2024-10-31 22:01:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:46,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-31 22:01:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:46,845 INFO L225 Difference]: With dead ends: 85 [2024-10-31 22:01:46,845 INFO L226 Difference]: Without dead ends: 84 [2024-10-31 22:01:46,846 INFO L431 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 [2024-10-31 22:01:46,849 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:46,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:01:46,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-31 22:01:46,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-10-31 22:01:46,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 79 states have (on average 1.379746835443038) internal successors, (109), 83 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2024-10-31 22:01:46,872 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 11 [2024-10-31 22:01:46,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:46,872 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2024-10-31 22:01:46,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:46,872 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2024-10-31 22:01:46,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-31 22:01:46,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:46,873 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:46,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:01:46,874 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:46,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:46,875 INFO L85 PathProgramCache]: Analyzing trace with hash -458138511, now seen corresponding path program 1 times [2024-10-31 22:01:46,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:46,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365074900] [2024-10-31 22:01:46,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:46,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:47,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:47,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365074900] [2024-10-31 22:01:47,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365074900] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:47,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199794412] [2024-10-31 22:01:47,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:47,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:47,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:47,009 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:47,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:01:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:47,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:01:47,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:47,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:47,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:47,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199794412] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:47,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:47,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-10-31 22:01:47,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893490907] [2024-10-31 22:01:47,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:47,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:01:47,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:47,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:01:47,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:01:47,415 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:47,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:47,907 INFO L93 Difference]: Finished difference Result 207 states and 298 transitions. [2024-10-31 22:01:47,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-31 22:01:47,908 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 [2024-10-31 22:01:47,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:47,909 INFO L225 Difference]: With dead ends: 207 [2024-10-31 22:01:47,910 INFO L226 Difference]: Without dead ends: 204 [2024-10-31 22:01:47,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=241, Invalid=515, Unknown=0, NotChecked=0, Total=756 [2024-10-31 22:01:47,911 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 183 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:47,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 28 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:01:47,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-10-31 22:01:47,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 110. [2024-10-31 22:01:47,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:47,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2024-10-31 22:01:47,930 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 14 [2024-10-31 22:01:47,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:47,931 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2024-10-31 22:01:47,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:47,931 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2024-10-31 22:01:47,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 22:01:47,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:47,932 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:01:47,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:48,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-31 22:01:48,133 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:48,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:48,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1317391881, now seen corresponding path program 1 times [2024-10-31 22:01:48,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:48,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891591637] [2024-10-31 22:01:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:48,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:48,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:48,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891591637] [2024-10-31 22:01:48,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891591637] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:48,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540385398] [2024-10-31 22:01:48,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:48,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:48,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:48,218 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:48,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:01:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:48,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:01:48,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:48,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:48,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540385398] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:48,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:48,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-10-31 22:01:48,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568951623] [2024-10-31 22:01:48,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:48,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:01:48,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:48,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:01:48,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:01:48,460 INFO L87 Difference]: Start difference. First operand 110 states and 137 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 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) [2024-10-31 22:01:48,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:48,807 INFO L93 Difference]: Finished difference Result 223 states and 287 transitions. [2024-10-31 22:01:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:01:48,809 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 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) Word has length 15 [2024-10-31 22:01:48,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:48,810 INFO L225 Difference]: With dead ends: 223 [2024-10-31 22:01:48,810 INFO L226 Difference]: Without dead ends: 222 [2024-10-31 22:01:48,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=243, Unknown=0, NotChecked=0, Total=380 [2024-10-31 22:01:48,814 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 128 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:48,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 31 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:01:48,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-31 22:01:48,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 170. [2024-10-31 22:01:48,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 167 states have (on average 1.2455089820359282) internal successors, (208), 169 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:48,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 208 transitions. [2024-10-31 22:01:48,862 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 208 transitions. Word has length 15 [2024-10-31 22:01:48,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:48,867 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 208 transitions. [2024-10-31 22:01:48,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 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) [2024-10-31 22:01:48,867 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 208 transitions. [2024-10-31 22:01:48,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-31 22:01:48,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:48,868 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:48,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:49,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:01:49,069 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:49,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:49,070 INFO L85 PathProgramCache]: Analyzing trace with hash -730743378, now seen corresponding path program 1 times [2024-10-31 22:01:49,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:49,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649182572] [2024-10-31 22:01:49,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:49,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:49,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:49,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649182572] [2024-10-31 22:01:49,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649182572] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:49,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237029025] [2024-10-31 22:01:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:49,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:49,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:49,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:49,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:01:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:49,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:01:49,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:49,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:49,300 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:49,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237029025] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:49,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:49,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-31 22:01:49,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52560559] [2024-10-31 22:01:49,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:49,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:01:49,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:49,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:01:49,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:01:49,304 INFO L87 Difference]: Start difference. First operand 170 states and 208 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) [2024-10-31 22:01:49,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:49,431 INFO L93 Difference]: Finished difference Result 372 states and 473 transitions. [2024-10-31 22:01:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:01:49,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-31 22:01:49,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:49,434 INFO L225 Difference]: With dead ends: 372 [2024-10-31 22:01:49,434 INFO L226 Difference]: Without dead ends: 371 [2024-10-31 22:01:49,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:01:49,436 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 43 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:49,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 42 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:01:49,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-10-31 22:01:49,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 277. [2024-10-31 22:01:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 274 states have (on average 1.2372262773722629) internal successors, (339), 276 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:49,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 339 transitions. [2024-10-31 22:01:49,475 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 339 transitions. Word has length 19 [2024-10-31 22:01:49,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:49,476 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 339 transitions. [2024-10-31 22:01:49,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) [2024-10-31 22:01:49,477 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 339 transitions. [2024-10-31 22:01:49,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-31 22:01:49,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:49,478 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:01:49,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:01:49,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:49,679 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:49,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:49,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2017559647, now seen corresponding path program 1 times [2024-10-31 22:01:49,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:49,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701759467] [2024-10-31 22:01:49,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:49,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:01:49,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:49,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701759467] [2024-10-31 22:01:49,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701759467] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:49,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583706752] [2024-10-31 22:01:49,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:49,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:49,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:49,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:49,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:01:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:49,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:01:49,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:50,111 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:01:50,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:50,304 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:01:50,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583706752] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:50,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:50,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2024-10-31 22:01:50,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339462] [2024-10-31 22:01:50,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:50,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-31 22:01:50,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:50,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 22:01:50,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:01:50,306 INFO L87 Difference]: Start difference. First operand 277 states and 339 transitions. Second operand has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:51,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:51,244 INFO L93 Difference]: Finished difference Result 509 states and 639 transitions. [2024-10-31 22:01:51,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-31 22:01:51,245 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 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 [2024-10-31 22:01:51,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:51,248 INFO L225 Difference]: With dead ends: 509 [2024-10-31 22:01:51,248 INFO L226 Difference]: Without dead ends: 507 [2024-10-31 22:01:51,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=498, Invalid=1142, Unknown=0, NotChecked=0, Total=1640 [2024-10-31 22:01:51,250 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 57 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:51,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 9 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:01:51,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-31 22:01:51,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 311. [2024-10-31 22:01:51,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 308 states have (on average 1.2175324675324675) internal successors, (375), 310 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:51,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 375 transitions. [2024-10-31 22:01:51,300 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 375 transitions. Word has length 25 [2024-10-31 22:01:51,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:51,300 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 375 transitions. [2024-10-31 22:01:51,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:51,301 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 375 transitions. [2024-10-31 22:01:51,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-31 22:01:51,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:51,303 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:01:51,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:01:51,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-31 22:01:51,504 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:51,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:51,505 INFO L85 PathProgramCache]: Analyzing trace with hash 678241780, now seen corresponding path program 2 times [2024-10-31 22:01:51,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:51,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857253782] [2024-10-31 22:01:51,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:51,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:51,685 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:51,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:51,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857253782] [2024-10-31 22:01:51,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857253782] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:51,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740827626] [2024-10-31 22:01:51,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:01:51,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:51,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:51,689 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:51,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:01:51,741 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:01:51,742 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:01:51,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:01:51,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:52,010 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:52,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:52,205 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:52,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740827626] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:52,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:52,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-10-31 22:01:52,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651680283] [2024-10-31 22:01:52,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:52,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-31 22:01:52,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:52,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-31 22:01:52,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:01:52,209 INFO L87 Difference]: Start difference. First operand 311 states and 375 transitions. Second operand has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:53,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:53,872 INFO L93 Difference]: Finished difference Result 1523 states and 1825 transitions. [2024-10-31 22:01:53,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-31 22:01:53,873 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 0 states have call successors, (0), 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 30 [2024-10-31 22:01:53,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:53,879 INFO L225 Difference]: With dead ends: 1523 [2024-10-31 22:01:53,879 INFO L226 Difference]: Without dead ends: 1522 [2024-10-31 22:01:53,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2000 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1462, Invalid=3794, Unknown=0, NotChecked=0, Total=5256 [2024-10-31 22:01:53,883 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 275 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:53,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 36 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:01:53,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2024-10-31 22:01:53,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 715. [2024-10-31 22:01:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 712 states have (on average 1.2148876404494382) internal successors, (865), 714 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:53,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 865 transitions. [2024-10-31 22:01:53,989 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 865 transitions. Word has length 30 [2024-10-31 22:01:53,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:53,989 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 865 transitions. [2024-10-31 22:01:53,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:53,990 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 865 transitions. [2024-10-31 22:01:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 22:01:53,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:53,991 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2024-10-31 22:01:54,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:01:54,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-31 22:01:54,193 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:54,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:54,194 INFO L85 PathProgramCache]: Analyzing trace with hash 499781144, now seen corresponding path program 2 times [2024-10-31 22:01:54,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:54,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741022377] [2024-10-31 22:01:54,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:54,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:54,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:54,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741022377] [2024-10-31 22:01:54,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741022377] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:54,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214990386] [2024-10-31 22:01:54,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:01:54,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:54,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:54,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:54,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:01:54,466 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:01:54,467 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:01:54,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:01:54,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:54,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:55,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214990386] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:55,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:55,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2024-10-31 22:01:55,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185897408] [2024-10-31 22:01:55,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:55,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-31 22:01:55,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:55,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-31 22:01:55,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2024-10-31 22:01:55,198 INFO L87 Difference]: Start difference. First operand 715 states and 865 transitions. Second operand has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:57,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:57,300 INFO L93 Difference]: Finished difference Result 1327 states and 1575 transitions. [2024-10-31 22:01:57,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-10-31 22:01:57,300 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-10-31 22:01:57,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:57,306 INFO L225 Difference]: With dead ends: 1327 [2024-10-31 22:01:57,306 INFO L226 Difference]: Without dead ends: 1326 [2024-10-31 22:01:57,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1364 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1263, Invalid=2643, Unknown=0, NotChecked=0, Total=3906 [2024-10-31 22:01:57,310 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 564 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:57,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 102 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-31 22:01:57,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-10-31 22:01:57,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 886. [2024-10-31 22:01:57,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 883 states have (on average 1.2095130237825595) internal successors, (1068), 885 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:57,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1068 transitions. [2024-10-31 22:01:57,431 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1068 transitions. Word has length 33 [2024-10-31 22:01:57,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:57,433 INFO L471 AbstractCegarLoop]: Abstraction has 886 states and 1068 transitions. [2024-10-31 22:01:57,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:57,433 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1068 transitions. [2024-10-31 22:01:57,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-31 22:01:57,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:57,435 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2024-10-31 22:01:57,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:01:57,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-31 22:01:57,641 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:57,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:57,642 INFO L85 PathProgramCache]: Analyzing trace with hash -746656358, now seen corresponding path program 1 times [2024-10-31 22:01:57,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:57,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466751773] [2024-10-31 22:01:57,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:57,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 22:01:57,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:57,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466751773] [2024-10-31 22:01:57,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466751773] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:57,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101232368] [2024-10-31 22:01:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:57,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:57,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:57,735 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:57,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:01:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:01:57,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:57,898 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:57,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:58,044 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:58,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101232368] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:58,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:58,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 15 [2024-10-31 22:01:58,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398072199] [2024-10-31 22:01:58,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:58,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-31 22:01:58,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:58,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-31 22:01:58,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:01:58,047 INFO L87 Difference]: Start difference. First operand 886 states and 1068 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:58,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:58,919 INFO L93 Difference]: Finished difference Result 3180 states and 3901 transitions. [2024-10-31 22:01:58,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-31 22:01:58,920 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-10-31 22:01:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:58,930 INFO L225 Difference]: With dead ends: 3180 [2024-10-31 22:01:58,930 INFO L226 Difference]: Without dead ends: 2976 [2024-10-31 22:01:58,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=545, Invalid=1015, Unknown=0, NotChecked=0, Total=1560 [2024-10-31 22:01:58,933 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 208 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:58,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 29 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:01:58,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2024-10-31 22:01:59,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 445. [2024-10-31 22:01:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 443 states have (on average 1.18510158013544) internal successors, (525), 444 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:59,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 525 transitions. [2024-10-31 22:01:59,039 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 525 transitions. Word has length 35 [2024-10-31 22:01:59,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:59,039 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 525 transitions. [2024-10-31 22:01:59,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:59,040 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 525 transitions. [2024-10-31 22:01:59,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-31 22:01:59,041 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:59,041 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:59,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-31 22:01:59,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-31 22:01:59,242 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:59,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:59,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1457588718, now seen corresponding path program 2 times [2024-10-31 22:01:59,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:59,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97249598] [2024-10-31 22:01:59,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:59,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:59,409 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:59,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:59,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97249598] [2024-10-31 22:01:59,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97249598] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:59,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347574785] [2024-10-31 22:01:59,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:01:59,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:59,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:59,412 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:59,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:01:59,459 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:01:59,459 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:01:59,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:01:59,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:59,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:59,688 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:59,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347574785] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:59,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:59,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-10-31 22:01:59,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249030385] [2024-10-31 22:01:59,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:59,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-31 22:01:59,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:59,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-31 22:01:59,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:01:59,696 INFO L87 Difference]: Start difference. First operand 445 states and 525 transitions. Second operand has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:00,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:00,228 INFO L93 Difference]: Finished difference Result 1694 states and 2070 transitions. [2024-10-31 22:02:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:02:00,228 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 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 39 [2024-10-31 22:02:00,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:00,236 INFO L225 Difference]: With dead ends: 1694 [2024-10-31 22:02:00,236 INFO L226 Difference]: Without dead ends: 1693 [2024-10-31 22:02:00,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:02:00,242 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 159 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:00,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 83 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:02:00,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2024-10-31 22:02:00,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1203. [2024-10-31 22:02:00,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1201 states have (on average 1.1740216486261448) internal successors, (1410), 1202 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:00,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1410 transitions. [2024-10-31 22:02:00,684 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1410 transitions. Word has length 39 [2024-10-31 22:02:00,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:00,685 INFO L471 AbstractCegarLoop]: Abstraction has 1203 states and 1410 transitions. [2024-10-31 22:02:00,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:00,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1410 transitions. [2024-10-31 22:02:00,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-31 22:02:00,687 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:00,687 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-10-31 22:02:00,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-31 22:02:00,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-31 22:02:00,888 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:02:00,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:00,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1726793311, now seen corresponding path program 3 times [2024-10-31 22:02:00,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:00,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976975397] [2024-10-31 22:02:00,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:00,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:01,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:01,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976975397] [2024-10-31 22:02:01,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976975397] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:02:01,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991884530] [2024-10-31 22:02:01,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:02:01,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:01,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:01,233 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:01,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d72aa3-fc11-42e6-acae-56e638624c2c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:02:01,279 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-10-31 22:02:01,279 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:02:01,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-31 22:02:01,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:01,680 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:02:02,025 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:02,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991884530] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:02:02,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:02:02,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2024-10-31 22:02:02,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39711952] [2024-10-31 22:02:02,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:02:02,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-10-31 22:02:02,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:02,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-10-31 22:02:02,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=455, Invalid=1707, Unknown=0, NotChecked=0, Total=2162 [2024-10-31 22:02:02,029 INFO L87 Difference]: Start difference. First operand 1203 states and 1410 transitions. Second operand has 47 states, 46 states have (on average 2.9130434782608696) internal successors, (134), 47 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)