./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-simple/nested_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/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_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/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 32bit --witnessprinter.graph.data.programhash 3d0f32d2f39934bb8fd732fa206acfa5d2fb4cacaee37919c0e4326d55891c86 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:14:05,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:14:05,582 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:14:05,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:14:05,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:14:05,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:14:05,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:14:05,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:14:05,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:14:05,634 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:14:05,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:14:05,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:14:05,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:14:05,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:14:05,638 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:14:05,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:14:05,638 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:14:05,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:14:05,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:14:05,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:14:05,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:14:05,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:14:05,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:14:05,646 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:14:05,647 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:14:05,647 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:14:05,647 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:14:05,647 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:14:05,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:14:05,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:14:05,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:14:05,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:14:05,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:14:05,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:14:05,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:14:05,652 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:14:05,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:14:05,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:14:05,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:14:05,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:14:05,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:14:05,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:14:05,655 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:14:05,655 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:14:05,655 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_1a0f4493-cb21-4317-ad70-2db43339a36c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d0f32d2f39934bb8fd732fa206acfa5d2fb4cacaee37919c0e4326d55891c86 [2024-10-31 22:14:05,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:14:06,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:14:06,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:14:06,027 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:14:06,028 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:14:06,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/loop-simple/nested_5.c Unable to find full path for "g++" [2024-10-31 22:14:08,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:14:08,557 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:14:08,558 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/sv-benchmarks/c/loop-simple/nested_5.c [2024-10-31 22:14:08,568 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/data/db9e7cb5a/023ad5c87bba46aba3ea16eacf3aae28/FLAGd1602f878 [2024-10-31 22:14:08,919 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/data/db9e7cb5a/023ad5c87bba46aba3ea16eacf3aae28 [2024-10-31 22:14:08,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:14:08,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:14:08,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:08,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:14:08,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:14:08,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:08" (1/1) ... [2024-10-31 22:14:08,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d67b98a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:08, skipping insertion in model container [2024-10-31 22:14:08,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:08" (1/1) ... [2024-10-31 22:14:08,980 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:14:09,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:09,218 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:14:09,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:09,254 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:14:09,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09 WrapperNode [2024-10-31 22:14:09,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:09,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:09,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:14:09,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:14:09,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,290 INFO L138 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-10-31 22:14:09,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:09,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:14:09,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:14:09,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:14:09,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,316 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:14:09,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:14:09,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:14:09,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:14:09,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:14:09,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (1/1) ... [2024-10-31 22:14:09,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:14:09,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:09,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:09,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:14:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:14:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:14:09,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:14:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:14:09,472 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:14:09,474 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:14:09,673 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-10-31 22:14:09,673 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:14:09,692 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:14:09,692 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-31 22:14:09,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:09 BoogieIcfgContainer [2024-10-31 22:14:09,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:14:09,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:14:09,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:14:09,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:14:09,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:14:08" (1/3) ... [2024-10-31 22:14:09,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc67f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:14:09, skipping insertion in model container [2024-10-31 22:14:09,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:09" (2/3) ... [2024-10-31 22:14:09,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc67f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:14:09, skipping insertion in model container [2024-10-31 22:14:09,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:09" (3/3) ... [2024-10-31 22:14:09,705 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_5.c [2024-10-31 22:14:09,727 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:14:09,728 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-31 22:14:09,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:14:09,816 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;@5d1dace6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:14:09,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-31 22:14:09,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 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 22:14:09,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 22:14:09,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:09,830 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:14:09,831 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:09,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:09,838 INFO L85 PathProgramCache]: Analyzing trace with hash 28698911, now seen corresponding path program 1 times [2024-10-31 22:14:09,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:09,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648566378] [2024-10-31 22:14:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:09,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:10,086 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 22:14:10,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:10,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648566378] [2024-10-31 22:14:10,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648566378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:10,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:10,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:14:10,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991914884] [2024-10-31 22:14:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:10,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:10,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:10,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:10,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:10,142 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 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, 3 states have (on average 1.6666666666666667) 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 22:14:10,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:10,230 INFO L93 Difference]: Finished difference Result 81 states and 111 transitions. [2024-10-31 22:14:10,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:10,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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 22:14:10,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:10,242 INFO L225 Difference]: With dead ends: 81 [2024-10-31 22:14:10,242 INFO L226 Difference]: Without dead ends: 45 [2024-10-31 22:14:10,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 22:14:10,249 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 20 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:10,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 59 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:14:10,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-31 22:14:10,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2024-10-31 22:14:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.793103448275862) internal successors, (52), 38 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2024-10-31 22:14:10,298 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 5 [2024-10-31 22:14:10,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:10,298 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2024-10-31 22:14:10,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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 22:14:10,299 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2024-10-31 22:14:10,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 22:14:10,302 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:10,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:10,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:14:10,303 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:10,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:10,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1809866121, now seen corresponding path program 1 times [2024-10-31 22:14:10,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:10,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633246193] [2024-10-31 22:14:10,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:10,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:10,420 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 22:14:10,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:10,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633246193] [2024-10-31 22:14:10,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633246193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:10,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:10,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:14:10,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077084544] [2024-10-31 22:14:10,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:10,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:10,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:10,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:10,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:10,428 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 22:14:10,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:10,488 INFO L93 Difference]: Finished difference Result 90 states and 126 transitions. [2024-10-31 22:14:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:10,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2024-10-31 22:14:10,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:10,490 INFO L225 Difference]: With dead ends: 90 [2024-10-31 22:14:10,491 INFO L226 Difference]: Without dead ends: 53 [2024-10-31 22:14:10,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 22:14:10,493 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:10,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 51 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-31 22:14:10,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2024-10-31 22:14:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.7073170731707317) internal successors, (70), 50 states have internal predecessors, (70), 0 states have call successors, (0), 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 22:14:10,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2024-10-31 22:14:10,506 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2024-10-31 22:14:10,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:10,516 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2024-10-31 22:14:10,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 22:14:10,516 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2024-10-31 22:14:10,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:14:10,517 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:10,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:10,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:14:10,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:10,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:10,518 INFO L85 PathProgramCache]: Analyzing trace with hash 271276373, now seen corresponding path program 1 times [2024-10-31 22:14:10,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:10,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565177975] [2024-10-31 22:14:10,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:10,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:10,592 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 22:14:10,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:10,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565177975] [2024-10-31 22:14:10,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565177975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:10,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:10,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:10,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921785417] [2024-10-31 22:14:10,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:10,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:10,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:10,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:10,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:10,596 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:10,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:10,650 INFO L93 Difference]: Finished difference Result 112 states and 162 transitions. [2024-10-31 22:14:10,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:10,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:14:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:10,653 INFO L225 Difference]: With dead ends: 112 [2024-10-31 22:14:10,653 INFO L226 Difference]: Without dead ends: 63 [2024-10-31 22:14:10,654 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 22:14:10,659 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:10,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 51 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:10,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-10-31 22:14:10,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-10-31 22:14:10,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 62 states have internal predecessors, (82), 0 states have call successors, (0), 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 22:14:10,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2024-10-31 22:14:10,680 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 8 [2024-10-31 22:14:10,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:10,680 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2024-10-31 22:14:10,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:10,684 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2024-10-31 22:14:10,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-31 22:14:10,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:10,684 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:10,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:14:10,685 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:10,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:10,686 INFO L85 PathProgramCache]: Analyzing trace with hash -181236569, now seen corresponding path program 1 times [2024-10-31 22:14:10,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:10,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168343656] [2024-10-31 22:14:10,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:10,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:10,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:10,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:10,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168343656] [2024-10-31 22:14:10,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168343656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:10,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:10,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:14:10,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382787187] [2024-10-31 22:14:10,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:10,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:10,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:10,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:10,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:10,756 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:10,795 INFO L93 Difference]: Finished difference Result 170 states and 228 transitions. [2024-10-31 22:14:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:10,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-31 22:14:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:10,798 INFO L225 Difference]: With dead ends: 170 [2024-10-31 22:14:10,798 INFO L226 Difference]: Without dead ends: 109 [2024-10-31 22:14:10,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 22:14:10,800 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:10,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 51 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:10,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-31 22:14:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2024-10-31 22:14:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 95 states have (on average 1.4947368421052631) internal successors, (142), 104 states have internal predecessors, (142), 0 states have call successors, (0), 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 22:14:10,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 142 transitions. [2024-10-31 22:14:10,818 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 142 transitions. Word has length 9 [2024-10-31 22:14:10,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:10,819 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 142 transitions. [2024-10-31 22:14:10,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:10,820 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 142 transitions. [2024-10-31 22:14:10,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:14:10,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:10,820 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:10,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:14:10,821 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:10,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1533946725, now seen corresponding path program 1 times [2024-10-31 22:14:10,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:10,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509908018] [2024-10-31 22:14:10,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:10,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:10,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:10,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:10,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509908018] [2024-10-31 22:14:10,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509908018] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:10,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902490278] [2024-10-31 22:14:10,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:10,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:10,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:10,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:10,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:14:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:10,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:14:10,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:11,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:11,042 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:14:11,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902490278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:11,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:14:11,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-31 22:14:11,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832816673] [2024-10-31 22:14:11,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:11,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:14:11,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:11,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:14:11,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:11,045 INFO L87 Difference]: Start difference. First operand 105 states and 142 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 22:14:11,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:11,093 INFO L93 Difference]: Finished difference Result 105 states and 142 transitions. [2024-10-31 22:14:11,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:14:11,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 22:14:11,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:11,096 INFO L225 Difference]: With dead ends: 105 [2024-10-31 22:14:11,096 INFO L226 Difference]: Without dead ends: 104 [2024-10-31 22:14:11,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 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 22:14:11,098 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 47 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:11,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 26 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:11,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-31 22:14:11,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-31 22:14:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 95 states have (on average 1.4105263157894736) internal successors, (134), 103 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) [2024-10-31 22:14:11,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 134 transitions. [2024-10-31 22:14:11,115 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 134 transitions. Word has length 11 [2024-10-31 22:14:11,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:11,116 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 134 transitions. [2024-10-31 22:14:11,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 22:14:11,116 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 134 transitions. [2024-10-31 22:14:11,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-31 22:14:11,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:11,117 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:11,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:11,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:11,321 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:11,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:11,322 INFO L85 PathProgramCache]: Analyzing trace with hash -307708142, now seen corresponding path program 1 times [2024-10-31 22:14:11,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:11,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347899899] [2024-10-31 22:14:11,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:11,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:11,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:14:11,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:11,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347899899] [2024-10-31 22:14:11,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347899899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:11,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:11,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:11,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125434092] [2024-10-31 22:14:11,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:11,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:11,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:11,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:11,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:11,363 INFO L87 Difference]: Start difference. First operand 104 states and 134 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:11,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:11,386 INFO L93 Difference]: Finished difference Result 104 states and 134 transitions. [2024-10-31 22:14:11,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:11,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-31 22:14:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:11,388 INFO L225 Difference]: With dead ends: 104 [2024-10-31 22:14:11,388 INFO L226 Difference]: Without dead ends: 103 [2024-10-31 22:14:11,388 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 22:14:11,389 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:11,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:11,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-31 22:14:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 87. [2024-10-31 22:14:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 86 states have internal predecessors, (110), 0 states have call successors, (0), 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 22:14:11,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 110 transitions. [2024-10-31 22:14:11,404 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 110 transitions. Word has length 12 [2024-10-31 22:14:11,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:11,405 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 110 transitions. [2024-10-31 22:14:11,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:11,405 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 110 transitions. [2024-10-31 22:14:11,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-31 22:14:11,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:11,406 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:11,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:14:11,406 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:11,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:11,407 INFO L85 PathProgramCache]: Analyzing trace with hash 541633062, now seen corresponding path program 1 times [2024-10-31 22:14:11,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:11,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533701714] [2024-10-31 22:14:11,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:11,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:11,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:11,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533701714] [2024-10-31 22:14:11,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533701714] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:11,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103144254] [2024-10-31 22:14:11,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:11,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:11,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:11,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:11,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:14:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:11,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:14:11,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:11,551 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:11,551 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:11,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103144254] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:11,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:11,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-31 22:14:11,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89208661] [2024-10-31 22:14:11,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:11,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:14:11,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:11,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:14:11,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:14:11,599 INFO L87 Difference]: Start difference. First operand 87 states and 110 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:11,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:11,654 INFO L93 Difference]: Finished difference Result 244 states and 314 transitions. [2024-10-31 22:14:11,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:14:11,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-10-31 22:14:11,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:11,656 INFO L225 Difference]: With dead ends: 244 [2024-10-31 22:14:11,656 INFO L226 Difference]: Without dead ends: 159 [2024-10-31 22:14:11,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:14:11,658 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 4 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:11,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 72 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:11,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-31 22:14:11,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-10-31 22:14:11,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 151 states have (on average 1.205298013245033) internal successors, (182), 158 states have internal predecessors, (182), 0 states have call successors, (0), 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 22:14:11,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 182 transitions. [2024-10-31 22:14:11,677 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 182 transitions. Word has length 18 [2024-10-31 22:14:11,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:11,677 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 182 transitions. [2024-10-31 22:14:11,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 182 transitions. [2024-10-31 22:14:11,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-31 22:14:11,678 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:11,678 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:11,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:14:11,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-31 22:14:11,882 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:11,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:11,883 INFO L85 PathProgramCache]: Analyzing trace with hash 210294599, now seen corresponding path program 1 times [2024-10-31 22:14:11,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:11,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52390760] [2024-10-31 22:14:11,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:11,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:14:11,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:11,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52390760] [2024-10-31 22:14:11,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52390760] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:11,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600303389] [2024-10-31 22:14:11,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:11,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:11,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:11,977 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:11,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:14:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:12,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:12,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-31 22:14:12,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:14:12,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600303389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:12,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:14:12,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-31 22:14:12,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472028698] [2024-10-31 22:14:12,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:12,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:12,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:12,135 INFO L87 Difference]: Start difference. First operand 159 states and 182 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:12,160 INFO L93 Difference]: Finished difference Result 159 states and 182 transitions. [2024-10-31 22:14:12,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:12,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-10-31 22:14:12,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:12,164 INFO L225 Difference]: With dead ends: 159 [2024-10-31 22:14:12,164 INFO L226 Difference]: Without dead ends: 158 [2024-10-31 22:14:12,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:12,166 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 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 22:14:12,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:12,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-31 22:14:12,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-10-31 22:14:12,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 151 states have (on average 1.1986754966887416) internal successors, (181), 157 states have internal predecessors, (181), 0 states have call successors, (0), 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 22:14:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 181 transitions. [2024-10-31 22:14:12,201 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 181 transitions. Word has length 29 [2024-10-31 22:14:12,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:12,202 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 181 transitions. [2024-10-31 22:14:12,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:12,203 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 181 transitions. [2024-10-31 22:14:12,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-31 22:14:12,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:12,204 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:12,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:12,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-31 22:14:12,408 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:12,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:12,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2070801918, now seen corresponding path program 1 times [2024-10-31 22:14:12,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:12,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78883504] [2024-10-31 22:14:12,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:12,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:14:12,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:12,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78883504] [2024-10-31 22:14:12,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78883504] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:12,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812570307] [2024-10-31 22:14:12,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:12,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:12,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:12,476 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:12,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:14:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:12,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:12,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:12,584 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-31 22:14:12,585 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:14:12,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812570307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:12,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:14:12,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-31 22:14:12,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137585292] [2024-10-31 22:14:12,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:12,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:12,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:12,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:12,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:12,587 INFO L87 Difference]: Start difference. First operand 158 states and 181 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:12,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:12,622 INFO L93 Difference]: Finished difference Result 314 states and 360 transitions. [2024-10-31 22:14:12,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:12,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-10-31 22:14:12,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:12,625 INFO L225 Difference]: With dead ends: 314 [2024-10-31 22:14:12,625 INFO L226 Difference]: Without dead ends: 313 [2024-10-31 22:14:12,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:12,626 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:12,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 48 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:12,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-10-31 22:14:12,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 307. [2024-10-31 22:14:12,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 300 states have (on average 1.1966666666666668) internal successors, (359), 306 states have internal predecessors, (359), 0 states have call successors, (0), 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 22:14:12,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 359 transitions. [2024-10-31 22:14:12,660 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 359 transitions. Word has length 30 [2024-10-31 22:14:12,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:12,660 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 359 transitions. [2024-10-31 22:14:12,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:12,661 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 359 transitions. [2024-10-31 22:14:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-31 22:14:12,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:12,662 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:12,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:14:12,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:12,863 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:12,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash 843716438, now seen corresponding path program 2 times [2024-10-31 22:14:12,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:12,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737289366] [2024-10-31 22:14:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-31 22:14:12,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:12,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737289366] [2024-10-31 22:14:12,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737289366] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:12,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564907514] [2024-10-31 22:14:12,985 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:14:12,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:12,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:12,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:13,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:14:13,064 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:14:13,065 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:13,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:14:13,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:13,142 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-31 22:14:13,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-31 22:14:13,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564907514] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:13,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:13,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2024-10-31 22:14:13,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235233571] [2024-10-31 22:14:13,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:13,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:14:13,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:13,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:14:13,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:14:13,245 INFO L87 Difference]: Start difference. First operand 307 states and 359 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 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 22:14:13,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:13,546 INFO L93 Difference]: Finished difference Result 690 states and 826 transitions. [2024-10-31 22:14:13,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:14:13,547 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 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 36 [2024-10-31 22:14:13,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:13,550 INFO L225 Difference]: With dead ends: 690 [2024-10-31 22:14:13,550 INFO L226 Difference]: Without dead ends: 402 [2024-10-31 22:14:13,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 61 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:14:13,556 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:13,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 73 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:14:13,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-10-31 22:14:13,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2024-10-31 22:14:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 396 states have (on average 1.128787878787879) internal successors, (447), 401 states have internal predecessors, (447), 0 states have call successors, (0), 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 22:14:13,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 447 transitions. [2024-10-31 22:14:13,605 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 447 transitions. Word has length 36 [2024-10-31 22:14:13,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:13,605 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 447 transitions. [2024-10-31 22:14:13,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 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 22:14:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 447 transitions. [2024-10-31 22:14:13,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-31 22:14:13,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:13,611 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:13,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:13,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:14:13,812 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:13,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:13,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1897158974, now seen corresponding path program 1 times [2024-10-31 22:14:13,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:13,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116270963] [2024-10-31 22:14:13,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:13,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-10-31 22:14:13,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:13,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116270963] [2024-10-31 22:14:13,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116270963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:13,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:13,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:13,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670578331] [2024-10-31 22:14:13,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:13,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:13,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:13,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:13,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:13,912 INFO L87 Difference]: Start difference. First operand 402 states and 447 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:13,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:13,960 INFO L93 Difference]: Finished difference Result 402 states and 447 transitions. [2024-10-31 22:14:13,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:13,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-10-31 22:14:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:13,963 INFO L225 Difference]: With dead ends: 402 [2024-10-31 22:14:13,963 INFO L226 Difference]: Without dead ends: 401 [2024-10-31 22:14:13,964 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 22:14:13,965 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:13,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-10-31 22:14:14,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 233. [2024-10-31 22:14:14,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 228 states have (on average 1.1535087719298245) internal successors, (263), 232 states have internal predecessors, (263), 0 states have call successors, (0), 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 22:14:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 263 transitions. [2024-10-31 22:14:14,011 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 263 transitions. Word has length 49 [2024-10-31 22:14:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:14,012 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 263 transitions. [2024-10-31 22:14:14,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 263 transitions. [2024-10-31 22:14:14,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-31 22:14:14,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:14,020 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:14,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:14:14,021 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:14,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:14,021 INFO L85 PathProgramCache]: Analyzing trace with hash 165609201, now seen corresponding path program 1 times [2024-10-31 22:14:14,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:14,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353359915] [2024-10-31 22:14:14,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:14,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-31 22:14:14,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:14,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353359915] [2024-10-31 22:14:14,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353359915] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:14,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86683895] [2024-10-31 22:14:14,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:14,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:14,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:14,129 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:14,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:14:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:14,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:14:14,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-31 22:14:14,237 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-31 22:14:14,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86683895] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:14,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:14,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-31 22:14:14,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298813920] [2024-10-31 22:14:14,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:14,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:14:14,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:14,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:14:14,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:14:14,296 INFO L87 Difference]: Start difference. First operand 233 states and 263 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:14,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:14,394 INFO L93 Difference]: Finished difference Result 966 states and 1072 transitions. [2024-10-31 22:14:14,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:14:14,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-31 22:14:14,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:14,398 INFO L225 Difference]: With dead ends: 966 [2024-10-31 22:14:14,398 INFO L226 Difference]: Without dead ends: 761 [2024-10-31 22:14:14,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:14:14,400 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:14,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 51 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:14,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-10-31 22:14:14,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 761. [2024-10-31 22:14:14,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 756 states have (on average 1.0780423280423281) internal successors, (815), 760 states have internal predecessors, (815), 0 states have call successors, (0), 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 22:14:14,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 815 transitions. [2024-10-31 22:14:14,473 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 815 transitions. Word has length 55 [2024-10-31 22:14:14,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:14,473 INFO L471 AbstractCegarLoop]: Abstraction has 761 states and 815 transitions. [2024-10-31 22:14:14,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:14,474 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 815 transitions. [2024-10-31 22:14:14,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-31 22:14:14,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:14,476 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:14,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:14:14,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:14,679 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:14,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:14,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1244393761, now seen corresponding path program 2 times [2024-10-31 22:14:14,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:14,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813977978] [2024-10-31 22:14:14,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:14,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:14,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 0 proven. 1995 refuted. 0 times theorem prover too weak. 1904 trivial. 0 not checked. [2024-10-31 22:14:14,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:14,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813977978] [2024-10-31 22:14:14,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813977978] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:14,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510678068] [2024-10-31 22:14:14,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:14:14,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:14,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:14,942 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:14,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:14:15,060 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:14:15,061 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:15,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:14:15,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:15,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 1994 proven. 748 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2024-10-31 22:14:15,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 1994 proven. 748 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2024-10-31 22:14:15,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510678068] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:15,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:15,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2024-10-31 22:14:15,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650172955] [2024-10-31 22:14:15,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:15,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:14:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:15,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:14:15,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:14:15,551 INFO L87 Difference]: Start difference. First operand 761 states and 815 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 22:14:15,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:15,893 INFO L93 Difference]: Finished difference Result 1779 states and 1915 transitions. [2024-10-31 22:14:15,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:14:15,894 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 187 [2024-10-31 22:14:15,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:15,900 INFO L225 Difference]: With dead ends: 1779 [2024-10-31 22:14:15,900 INFO L226 Difference]: Without dead ends: 1112 [2024-10-31 22:14:15,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 363 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:14:15,903 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 23 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:15,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 105 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:14:15,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-10-31 22:14:16,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2024-10-31 22:14:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1108 states have (on average 1.0640794223826715) internal successors, (1179), 1111 states have internal predecessors, (1179), 0 states have call successors, (0), 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 22:14:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1179 transitions. [2024-10-31 22:14:16,009 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1179 transitions. Word has length 187 [2024-10-31 22:14:16,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:16,010 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1179 transitions. [2024-10-31 22:14:16,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 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 22:14:16,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1179 transitions. [2024-10-31 22:14:16,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-10-31 22:14:16,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:16,017 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:16,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-31 22:14:16,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:16,218 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:16,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:16,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2036998970, now seen corresponding path program 1 times [2024-10-31 22:14:16,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:16,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591914819] [2024-10-31 22:14:16,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:16,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 8824 backedges. 4479 proven. 0 refuted. 0 times theorem prover too weak. 4345 trivial. 0 not checked. [2024-10-31 22:14:16,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:16,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591914819] [2024-10-31 22:14:16,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591914819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:16,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:16,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:16,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959947903] [2024-10-31 22:14:16,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:16,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:16,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:16,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:16,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:16,417 INFO L87 Difference]: Start difference. First operand 1112 states and 1179 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:16,511 INFO L93 Difference]: Finished difference Result 1112 states and 1179 transitions. [2024-10-31 22:14:16,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:16,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2024-10-31 22:14:16,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:16,517 INFO L225 Difference]: With dead ends: 1112 [2024-10-31 22:14:16,517 INFO L226 Difference]: Without dead ends: 1111 [2024-10-31 22:14:16,518 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 22:14:16,518 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:16,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:16,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2024-10-31 22:14:16,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 571. [2024-10-31 22:14:16,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 568 states have (on average 1.068661971830986) internal successors, (607), 570 states have internal predecessors, (607), 0 states have call successors, (0), 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 22:14:16,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 607 transitions. [2024-10-31 22:14:16,579 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 607 transitions. Word has length 276 [2024-10-31 22:14:16,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:16,580 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 607 transitions. [2024-10-31 22:14:16,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 607 transitions. [2024-10-31 22:14:16,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-10-31 22:14:16,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:16,585 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:16,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:14:16,585 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:16,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1328734948, now seen corresponding path program 1 times [2024-10-31 22:14:16,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:16,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730509469] [2024-10-31 22:14:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:16,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:16,797 INFO L134 CoverageAnalysis]: Checked inductivity of 8831 backedges. 4484 proven. 1 refuted. 0 times theorem prover too weak. 4346 trivial. 0 not checked. [2024-10-31 22:14:16,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:16,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730509469] [2024-10-31 22:14:16,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730509469] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:16,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555673692] [2024-10-31 22:14:16,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:16,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:16,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:16,800 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:16,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:14:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:16,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:14:16,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 8831 backedges. 4484 proven. 1 refuted. 0 times theorem prover too weak. 4346 trivial. 0 not checked. [2024-10-31 22:14:17,176 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:17,420 INFO L134 CoverageAnalysis]: Checked inductivity of 8831 backedges. 4484 proven. 1 refuted. 0 times theorem prover too weak. 4346 trivial. 0 not checked. [2024-10-31 22:14:17,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555673692] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:17,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:17,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-31 22:14:17,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812579392] [2024-10-31 22:14:17,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:17,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:14:17,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:17,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:14:17,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:14:17,423 INFO L87 Difference]: Start difference. First operand 571 states and 607 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:17,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:17,694 INFO L93 Difference]: Finished difference Result 2633 states and 2793 transitions. [2024-10-31 22:14:17,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:14:17,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2024-10-31 22:14:17,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:17,703 INFO L225 Difference]: With dead ends: 2633 [2024-10-31 22:14:17,703 INFO L226 Difference]: Without dead ends: 2203 [2024-10-31 22:14:17,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:14:17,705 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 20 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:17,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 73 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2024-10-31 22:14:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 2203. [2024-10-31 22:14:17,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 2200 states have (on average 1.055909090909091) internal successors, (2323), 2202 states have internal predecessors, (2323), 0 states have call successors, (0), 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 22:14:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 2323 transitions. [2024-10-31 22:14:17,967 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 2323 transitions. Word has length 282 [2024-10-31 22:14:17,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:17,968 INFO L471 AbstractCegarLoop]: Abstraction has 2203 states and 2323 transitions. [2024-10-31 22:14:17,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:17,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 2323 transitions. [2024-10-31 22:14:18,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1099 [2024-10-31 22:14:18,008 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:18,008 INFO L215 NwaCegarLoop]: trace histogram [288, 288, 288, 48, 48, 48, 48, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:18,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:18,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-31 22:14:18,209 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:18,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:18,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1583082004, now seen corresponding path program 2 times [2024-10-31 22:14:18,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:18,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738206189] [2024-10-31 22:14:18,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:18,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 142835 backedges. 0 proven. 71691 refuted. 0 times theorem prover too weak. 71144 trivial. 0 not checked. [2024-10-31 22:14:19,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:19,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738206189] [2024-10-31 22:14:19,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738206189] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:19,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092149567] [2024-10-31 22:14:19,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:14:19,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:19,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:19,568 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:19,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:14:20,131 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:14:20,131 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:20,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:14:20,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 142835 backedges. 71690 proven. 26884 refuted. 0 times theorem prover too weak. 44261 trivial. 0 not checked. [2024-10-31 22:14:21,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 142835 backedges. 71690 proven. 26884 refuted. 0 times theorem prover too weak. 44261 trivial. 0 not checked. [2024-10-31 22:14:22,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092149567] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:22,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:22,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2024-10-31 22:14:22,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730420673] [2024-10-31 22:14:22,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:22,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:14:22,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:22,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:14:22,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:14:22,521 INFO L87 Difference]: Start difference. First operand 2203 states and 2323 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:23,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:23,206 INFO L93 Difference]: Finished difference Result 4944 states and 5220 transitions. [2024-10-31 22:14:23,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:14:23,207 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1098 [2024-10-31 22:14:23,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:23,240 INFO L225 Difference]: With dead ends: 4944 [2024-10-31 22:14:23,241 INFO L226 Difference]: Without dead ends: 3290 [2024-10-31 22:14:23,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2209 GetRequests, 2185 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:14:23,247 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 25 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:23,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 152 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:14:23,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2024-10-31 22:14:23,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3290. [2024-10-31 22:14:23,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3290 states, 3288 states have (on average 1.0538321167883211) internal successors, (3465), 3289 states have internal predecessors, (3465), 0 states have call successors, (0), 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 22:14:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 3465 transitions. [2024-10-31 22:14:23,642 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 3465 transitions. Word has length 1098 [2024-10-31 22:14:23,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:23,643 INFO L471 AbstractCegarLoop]: Abstraction has 3290 states and 3465 transitions. [2024-10-31 22:14:23,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:23,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 3465 transitions. [2024-10-31 22:14:23,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1644 [2024-10-31 22:14:23,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:23,775 INFO L215 NwaCegarLoop]: trace histogram [432, 432, 432, 72, 72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:14:23,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-31 22:14:23,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-31 22:14:23,980 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:23,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash -46653930, now seen corresponding path program 1 times [2024-10-31 22:14:23,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:23,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296649532] [2024-10-31 22:14:23,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:23,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 321772 backedges. 161295 proven. 0 refuted. 0 times theorem prover too weak. 160477 trivial. 0 not checked. [2024-10-31 22:14:25,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:25,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296649532] [2024-10-31 22:14:25,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296649532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:25,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:25,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:25,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357495706] [2024-10-31 22:14:25,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:25,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:25,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:25,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:25,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:14:25,665 INFO L87 Difference]: Start difference. First operand 3290 states and 3465 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:26,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:26,001 INFO L93 Difference]: Finished difference Result 3290 states and 3465 transitions. [2024-10-31 22:14:26,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:26,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1643 [2024-10-31 22:14:26,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:26,016 INFO L225 Difference]: With dead ends: 3290 [2024-10-31 22:14:26,016 INFO L226 Difference]: Without dead ends: 3289 [2024-10-31 22:14:26,017 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 22:14:26,018 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:26,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:26,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2024-10-31 22:14:26,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 1651. [2024-10-31 22:14:26,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1650 states have (on average 1.053939393939394) internal successors, (1739), 1650 states have internal predecessors, (1739), 0 states have call successors, (0), 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 22:14:26,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1739 transitions. [2024-10-31 22:14:26,262 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1739 transitions. Word has length 1643 [2024-10-31 22:14:26,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:26,264 INFO L471 AbstractCegarLoop]: Abstraction has 1651 states and 1739 transitions. [2024-10-31 22:14:26,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:26,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1739 transitions. [2024-10-31 22:14:26,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2024-10-31 22:14:26,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:26,287 INFO L215 NwaCegarLoop]: trace histogram [432, 432, 432, 72, 72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-31 22:14:26,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:14:26,288 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:14:26,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:26,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1388074786, now seen corresponding path program 1 times [2024-10-31 22:14:26,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:26,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592881132] [2024-10-31 22:14:26,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:26,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:27,854 INFO L134 CoverageAnalysis]: Checked inductivity of 321780 backedges. 161300 proven. 1 refuted. 0 times theorem prover too weak. 160479 trivial. 0 not checked. [2024-10-31 22:14:27,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:27,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592881132] [2024-10-31 22:14:27,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592881132] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:27,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336420380] [2024-10-31 22:14:27,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:27,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:27,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:27,857 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:27,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-31 22:14:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:28,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 2893 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:28,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 321780 backedges. 161301 proven. 0 refuted. 0 times theorem prover too weak. 160479 trivial. 0 not checked. [2024-10-31 22:14:29,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:14:29,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336420380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:29,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:14:29,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-31 22:14:29,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34776015] [2024-10-31 22:14:29,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:29,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:14:29,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:29,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:14:29,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:29,899 INFO L87 Difference]: Start difference. First operand 1651 states and 1739 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:30,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:30,147 INFO L93 Difference]: Finished difference Result 1651 states and 1739 transitions. [2024-10-31 22:14:30,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:14:30,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1650 [2024-10-31 22:14:30,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:30,152 INFO L225 Difference]: With dead ends: 1651 [2024-10-31 22:14:30,153 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 22:14:30,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1653 GetRequests, 1650 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:30,156 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:30,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:30,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 22:14:30,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 22:14:30,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:30,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:14:30,159 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1650 [2024-10-31 22:14:30,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:30,160 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:14:30,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:30,160 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:14:30,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 22:14:30,163 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-10-31 22:14:30,164 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-10-31 22:14:30,164 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-10-31 22:14:30,164 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-10-31 22:14:30,165 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-10-31 22:14:30,165 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-10-31 22:14:30,165 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-10-31 22:14:30,165 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-10-31 22:14:30,165 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-10-31 22:14:30,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-10-31 22:14:30,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-31 22:14:30,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0f4493-cb21-4317-ad70-2db43339a36c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-31 22:14:30,369 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:30,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.