./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_25x0-2.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_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/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_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_25x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/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_867738cc-04ef-4c91-9450-459422843d35/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 0189dbb29c824fc5d22409df9775c70fa543bd61c2bf554681db703f0a461966 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:00:35,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:00:35,880 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:00:35,887 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:00:35,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:00:35,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:00:35,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:00:35,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:00:35,926 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:00:35,927 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:00:35,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:00:35,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:00:35,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:00:35,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:00:35,931 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:00:35,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:00:35,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:00:35,932 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:00:35,932 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:00:35,933 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:00:35,933 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:00:35,934 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:00:35,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:00:35,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:00:35,935 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:00:35,935 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:00:35,936 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:00:35,936 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:00:35,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:00:35,937 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:00:35,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:00:35,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:00:35,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:00:35,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:00:35,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:35,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:00:35,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:00:35,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:00:35,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:00:35,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:00:35,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:00:35,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:00:35,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:00:35,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:00:35,943 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_867738cc-04ef-4c91-9450-459422843d35/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0189dbb29c824fc5d22409df9775c70fa543bd61c2bf554681db703f0a461966 [2024-10-31 22:00:36,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:00:36,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:00:36,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:00:36,265 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:00:36,266 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:00:36,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/recursive-simple/sum_25x0-2.c Unable to find full path for "g++" [2024-10-31 22:00:38,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:38,521 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:38,523 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/sv-benchmarks/c/recursive-simple/sum_25x0-2.c [2024-10-31 22:00:38,530 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/data/21935cc33/1162c7a25bf04d059f60fe70b3444a27/FLAGfac3ab744 [2024-10-31 22:00:38,544 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/data/21935cc33/1162c7a25bf04d059f60fe70b3444a27 [2024-10-31 22:00:38,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:38,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:38,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:38,550 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:38,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:38,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ae5dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38, skipping insertion in model container [2024-10-31 22:00:38,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,578 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:38,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:38,777 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:38,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:38,806 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:38,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38 WrapperNode [2024-10-31 22:00:38,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:38,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:38,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:38,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:38,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,837 INFO L138 Inliner]: procedures = 12, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2024-10-31 22:00:38,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:38,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:38,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:38,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:38,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,852 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,864 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 22:00:38,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:38,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:38,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:38,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:38,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (1/1) ... [2024-10-31 22:00:38,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:38,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:38,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:38,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:38,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:00:38,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:38,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:38,937 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2024-10-31 22:00:38,938 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2024-10-31 22:00:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:00:39,001 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:39,003 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:39,175 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-31 22:00:39,175 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:39,198 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:39,198 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:00:39,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:39 BoogieIcfgContainer [2024-10-31 22:00:39,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:39,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:00:39,206 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:00:39,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:00:39,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:00:38" (1/3) ... [2024-10-31 22:00:39,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef3d403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:39, skipping insertion in model container [2024-10-31 22:00:39,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:38" (2/3) ... [2024-10-31 22:00:39,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef3d403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:39, skipping insertion in model container [2024-10-31 22:00:39,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:39" (3/3) ... [2024-10-31 22:00:39,216 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_25x0-2.c [2024-10-31 22:00:39,236 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:00:39,236 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-31 22:00:39,316 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:39,324 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;@6d9887c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:39,325 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:00:39,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 20 states have (on average 1.5) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:00:39,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-31 22:00:39,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:39,339 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:00:39,339 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:39,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:39,345 INFO L85 PathProgramCache]: Analyzing trace with hash 890593104, now seen corresponding path program 1 times [2024-10-31 22:00:39,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:39,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918198223] [2024-10-31 22:00:39,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:39,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:39,656 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 22:00:39,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:39,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918198223] [2024-10-31 22:00:39,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918198223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:39,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:39,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177463595] [2024-10-31 22:00:39,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:39,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:39,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:39,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:39,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:39,704 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.5) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:39,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:39,839 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2024-10-31 22:00:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:39,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-31 22:00:39,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:39,854 INFO L225 Difference]: With dead ends: 62 [2024-10-31 22:00:39,854 INFO L226 Difference]: Without dead ends: 39 [2024-10-31 22:00:39,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:39,862 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:39,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 73 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:39,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-10-31 22:00:39,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2024-10-31 22:00:39,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:00:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2024-10-31 22:00:39,915 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 6 [2024-10-31 22:00:39,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:39,916 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2024-10-31 22:00:39,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:39,917 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2024-10-31 22:00:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 22:00:39,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:39,918 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:39,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:00:39,918 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:39,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:39,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1838587471, now seen corresponding path program 1 times [2024-10-31 22:00:39,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:39,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25066133] [2024-10-31 22:00:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:39,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:40,018 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 22:00:40,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:40,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25066133] [2024-10-31 22:00:40,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25066133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:40,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:40,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:00:40,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696698207] [2024-10-31 22:00:40,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:40,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:40,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:40,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:40,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:40,026 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:40,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:40,117 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2024-10-31 22:00:40,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:40,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 22:00:40,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:40,120 INFO L225 Difference]: With dead ends: 38 [2024-10-31 22:00:40,121 INFO L226 Difference]: Without dead ends: 37 [2024-10-31 22:00:40,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:40,123 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 27 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:40,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 29 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:40,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-31 22:00:40,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2024-10-31 22:00:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:00:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-10-31 22:00:40,134 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 7 [2024-10-31 22:00:40,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:40,134 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-10-31 22:00:40,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:40,135 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-10-31 22:00:40,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:00:40,135 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:40,136 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:40,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:40,136 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:40,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:40,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1161636818, now seen corresponding path program 1 times [2024-10-31 22:00:40,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:40,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603665917] [2024-10-31 22:00:40,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:40,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:40,272 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 22:00:40,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:40,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603665917] [2024-10-31 22:00:40,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603665917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:40,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:40,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:00:40,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062248423] [2024-10-31 22:00:40,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:40,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:40,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:40,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:40,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:40,277 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:40,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:40,342 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2024-10-31 22:00:40,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:40,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 22:00:40,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:40,344 INFO L225 Difference]: With dead ends: 37 [2024-10-31 22:00:40,344 INFO L226 Difference]: Without dead ends: 35 [2024-10-31 22:00:40,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:40,346 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:40,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 68 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:40,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-10-31 22:00:40,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-10-31 22:00:40,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:00:40,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2024-10-31 22:00:40,356 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 8 [2024-10-31 22:00:40,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:40,356 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2024-10-31 22:00:40,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:40,357 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2024-10-31 22:00:40,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-31 22:00:40,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:40,358 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:40,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:00:40,358 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:40,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:40,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1131512701, now seen corresponding path program 1 times [2024-10-31 22:00:40,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:40,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194072031] [2024-10-31 22:00:40,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:40,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:40,487 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 22:00:40,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:40,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194072031] [2024-10-31 22:00:40,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194072031] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:40,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678754894] [2024-10-31 22:00:40,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:40,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:40,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:40,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:40,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:00:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:40,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:00:40,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:40,645 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 22:00:40,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:40,749 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 22:00:40,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678754894] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:40,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:40,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-10-31 22:00:40,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929457611] [2024-10-31 22:00:40,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:40,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:00:40,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:40,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:00:40,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:00:40,754 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:40,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:40,998 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2024-10-31 22:00:40,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:00:40,998 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-31 22:00:41,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:41,012 INFO L225 Difference]: With dead ends: 88 [2024-10-31 22:00:41,012 INFO L226 Difference]: Without dead ends: 72 [2024-10-31 22:00:41,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:00:41,014 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 88 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:41,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 152 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:41,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-31 22:00:41,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2024-10-31 22:00:41,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 52 states have internal predecessors, (59), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:00:41,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2024-10-31 22:00:41,055 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 13 [2024-10-31 22:00:41,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:41,056 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2024-10-31 22:00:41,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:41,060 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2024-10-31 22:00:41,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 22:00:41,061 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:41,061 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:41,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:00:41,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:41,262 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:41,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:41,263 INFO L85 PathProgramCache]: Analyzing trace with hash 757135551, now seen corresponding path program 1 times [2024-10-31 22:00:41,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:41,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969602616] [2024-10-31 22:00:41,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:41,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:41,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:41,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:41,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969602616] [2024-10-31 22:00:41,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969602616] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:41,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898630394] [2024-10-31 22:00:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:41,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:41,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:41,391 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:41,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:00:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:41,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:41,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:41,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:41,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898630394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:41,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:00:41,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-31 22:00:41,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750052105] [2024-10-31 22:00:41,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:41,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:41,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:41,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:41,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:00:41,494 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:41,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:41,563 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2024-10-31 22:00:41,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:41,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-31 22:00:41,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:41,567 INFO L225 Difference]: With dead ends: 66 [2024-10-31 22:00:41,568 INFO L226 Difference]: Without dead ends: 65 [2024-10-31 22:00:41,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:00:41,570 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:41,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 63 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:41,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-31 22:00:41,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2024-10-31 22:00:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 51 states have internal predecessors, (55), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:00:41,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2024-10-31 22:00:41,590 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 15 [2024-10-31 22:00:41,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:41,590 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2024-10-31 22:00:41,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:41,591 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2024-10-31 22:00:41,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-31 22:00:41,591 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:41,592 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:41,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:00:41,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:41,796 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:41,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:41,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1996365668, now seen corresponding path program 1 times [2024-10-31 22:00:41,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:41,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051253046] [2024-10-31 22:00:41,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:41,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:41,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:41,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051253046] [2024-10-31 22:00:41,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051253046] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:41,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592911639] [2024-10-31 22:00:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:41,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:41,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:41,932 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:41,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:00:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:41,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:00:41,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:42,061 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:42,061 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:42,165 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:42,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592911639] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:42,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:42,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-10-31 22:00:42,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385471215] [2024-10-31 22:00:42,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:42,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-31 22:00:42,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:42,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 22:00:42,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:42,168 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:42,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:42,347 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2024-10-31 22:00:42,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:00:42,348 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-31 22:00:42,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:42,349 INFO L225 Difference]: With dead ends: 66 [2024-10-31 22:00:42,349 INFO L226 Difference]: Without dead ends: 65 [2024-10-31 22:00:42,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:00:42,351 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 60 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:42,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 155 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:42,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-31 22:00:42,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2024-10-31 22:00:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 51 states have internal predecessors, (52), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:00:42,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2024-10-31 22:00:42,364 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 16 [2024-10-31 22:00:42,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:42,364 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2024-10-31 22:00:42,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:42,365 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2024-10-31 22:00:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 22:00:42,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:42,366 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-10-31 22:00:42,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:00:42,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-31 22:00:42,567 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:42,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:42,567 INFO L85 PathProgramCache]: Analyzing trace with hash 490520080, now seen corresponding path program 2 times [2024-10-31 22:00:42,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:42,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206998017] [2024-10-31 22:00:42,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:42,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:42,866 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:42,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:42,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206998017] [2024-10-31 22:00:42,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206998017] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:42,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233104354] [2024-10-31 22:00:42,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:42,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:42,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:42,871 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:42,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:00:42,952 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:42,952 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:42,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:00:42,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:43,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:43,302 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:43,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233104354] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:43,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:43,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-10-31 22:00:43,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973249399] [2024-10-31 22:00:43,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:43,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-31 22:00:43,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:43,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-31 22:00:43,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-10-31 22:00:43,306 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:43,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:43,720 INFO L93 Difference]: Finished difference Result 155 states and 167 transitions. [2024-10-31 22:00:43,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-31 22:00:43,721 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-10-31 22:00:43,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:43,722 INFO L225 Difference]: With dead ends: 155 [2024-10-31 22:00:43,722 INFO L226 Difference]: Without dead ends: 131 [2024-10-31 22:00:43,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2024-10-31 22:00:43,724 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 180 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:43,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 296 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:43,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-10-31 22:00:43,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 123. [2024-10-31 22:00:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 95 states have (on average 1.1157894736842104) internal successors, (106), 99 states have internal predecessors, (106), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:00:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 130 transitions. [2024-10-31 22:00:43,747 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 130 transitions. Word has length 34 [2024-10-31 22:00:43,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:43,747 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 130 transitions. [2024-10-31 22:00:43,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 130 transitions. [2024-10-31 22:00:43,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-31 22:00:43,748 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:43,749 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2024-10-31 22:00:43,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:00:43,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-31 22:00:43,953 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:43,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:43,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1609791473, now seen corresponding path program 2 times [2024-10-31 22:00:43,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:43,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9045928] [2024-10-31 22:00:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:43,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:44,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:44,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9045928] [2024-10-31 22:00:44,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9045928] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:44,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562112078] [2024-10-31 22:00:44,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:44,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:44,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:44,147 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:44,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:00:44,204 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:44,204 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:44,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:00:44,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:44,331 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:44,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:44,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562112078] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:44,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:44,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-10-31 22:00:44,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672333658] [2024-10-31 22:00:44,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:44,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-31 22:00:44,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:44,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-31 22:00:44,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2024-10-31 22:00:44,610 INFO L87 Difference]: Start difference. First operand 123 states and 130 transitions. Second operand has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:45,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:45,116 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2024-10-31 22:00:45,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-31 22:00:45,117 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-10-31 22:00:45,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:45,119 INFO L225 Difference]: With dead ends: 126 [2024-10-31 22:00:45,119 INFO L226 Difference]: Without dead ends: 125 [2024-10-31 22:00:45,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=341, Invalid=991, Unknown=0, NotChecked=0, Total=1332 [2024-10-31 22:00:45,121 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 144 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:45,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 344 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:00:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-10-31 22:00:45,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2024-10-31 22:00:45,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 95 states have (on average 1.0526315789473684) internal successors, (100), 99 states have internal predecessors, (100), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:00:45,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 124 transitions. [2024-10-31 22:00:45,144 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 124 transitions. Word has length 37 [2024-10-31 22:00:45,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:45,144 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 124 transitions. [2024-10-31 22:00:45,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:45,145 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 124 transitions. [2024-10-31 22:00:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-31 22:00:45,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:45,147 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-10-31 22:00:45,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:00:45,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:45,351 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:45,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:45,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1327054896, now seen corresponding path program 3 times [2024-10-31 22:00:45,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:45,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317330786] [2024-10-31 22:00:45,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:45,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:46,164 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:46,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:46,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317330786] [2024-10-31 22:00:46,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317330786] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:46,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389409730] [2024-10-31 22:00:46,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:00:46,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:46,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:46,172 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:46,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:00:46,257 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-31 22:00:46,257 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:46,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:00:46,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-10-31 22:00:46,495 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:46,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389409730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:46,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:00:46,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 29 [2024-10-31 22:00:46,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247066778] [2024-10-31 22:00:46,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:46,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:46,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:46,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:46,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2024-10-31 22:00:46,498 INFO L87 Difference]: Start difference. First operand 123 states and 124 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:46,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:46,665 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2024-10-31 22:00:46,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:00:46,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-31 22:00:46,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:46,670 INFO L225 Difference]: With dead ends: 125 [2024-10-31 22:00:46,670 INFO L226 Difference]: Without dead ends: 124 [2024-10-31 22:00:46,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=193, Invalid=799, Unknown=0, NotChecked=0, Total=992 [2024-10-31 22:00:46,673 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:46,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 59 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:46,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-10-31 22:00:46,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2024-10-31 22:00:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 95 states have (on average 1.0421052631578946) internal successors, (99), 98 states have internal predecessors, (99), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:00:46,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 123 transitions. [2024-10-31 22:00:46,699 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 123 transitions. Word has length 76 [2024-10-31 22:00:46,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:46,699 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 123 transitions. [2024-10-31 22:00:46,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 123 transitions. [2024-10-31 22:00:46,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-31 22:00:46,709 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:46,709 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:46,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:00:46,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:46,911 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:46,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:46,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1810971126, now seen corresponding path program 1 times [2024-10-31 22:00:46,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:46,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233610341] [2024-10-31 22:00:46,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:46,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:47,472 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:47,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:47,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233610341] [2024-10-31 22:00:47,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233610341] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:47,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763036395] [2024-10-31 22:00:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:47,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:47,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:47,476 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:47,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:00:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:47,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-31 22:00:47,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:48,327 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:48,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:49,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763036395] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:49,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:49,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 72 [2024-10-31 22:00:49,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154813285] [2024-10-31 22:00:49,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:49,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-10-31 22:00:49,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:49,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-10-31 22:00:49,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=714, Invalid=4398, Unknown=0, NotChecked=0, Total=5112 [2024-10-31 22:00:49,656 INFO L87 Difference]: Start difference. First operand 122 states and 123 transitions. Second operand has 72 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 39 states have internal predecessors, (194), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:51,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:51,779 INFO L93 Difference]: Finished difference Result 296 states and 321 transitions. [2024-10-31 22:00:51,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-31 22:00:51,780 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 39 states have internal predecessors, (194), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-31 22:00:51,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:51,782 INFO L225 Difference]: With dead ends: 296 [2024-10-31 22:00:51,782 INFO L226 Difference]: Without dead ends: 254 [2024-10-31 22:00:51,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2468 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2028, Invalid=9102, Unknown=0, NotChecked=0, Total=11130 [2024-10-31 22:00:51,787 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 694 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:51,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 912 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 22:00:51,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-10-31 22:00:51,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 241. [2024-10-31 22:00:51,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 191 states have (on average 1.0732984293193717) internal successors, (205), 193 states have internal predecessors, (205), 24 states have call successors, (24), 23 states have call predecessors, (24), 23 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-31 22:00:51,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 253 transitions. [2024-10-31 22:00:51,817 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 253 transitions. Word has length 77 [2024-10-31 22:00:51,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:51,817 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 253 transitions. [2024-10-31 22:00:51,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 39 states have internal predecessors, (194), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:51,818 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 253 transitions. [2024-10-31 22:00:51,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-31 22:00:51,819 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:51,819 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 1, 1, 1, 1] [2024-10-31 22:00:51,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-31 22:00:52,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:00:52,020 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:52,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:52,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1916377020, now seen corresponding path program 3 times [2024-10-31 22:00:52,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:52,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346219842] [2024-10-31 22:00:52,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:52,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:52,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:52,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346219842] [2024-10-31 22:00:52,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346219842] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:52,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201497795] [2024-10-31 22:00:52,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:00:52,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:52,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:52,715 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:52,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:00:52,791 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-10-31 22:00:52,791 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:52,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-31 22:00:52,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:52,994 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:52,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:53,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201497795] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:53,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:53,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 54 [2024-10-31 22:00:53,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342332979] [2024-10-31 22:00:53,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:53,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-10-31 22:00:53,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:53,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-10-31 22:00:53,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=710, Invalid=2260, Unknown=0, NotChecked=0, Total=2970 [2024-10-31 22:00:53,825 INFO L87 Difference]: Start difference. First operand 241 states and 253 transitions. Second operand has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:54,884 INFO L93 Difference]: Finished difference Result 274 states and 290 transitions. [2024-10-31 22:00:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-10-31 22:00:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-31 22:00:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:54,887 INFO L225 Difference]: With dead ends: 274 [2024-10-31 22:00:54,887 INFO L226 Difference]: Without dead ends: 273 [2024-10-31 22:00:54,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1360 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1636, Invalid=4526, Unknown=0, NotChecked=0, Total=6162 [2024-10-31 22:00:54,890 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 532 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:54,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 680 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:00:54,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-10-31 22:00:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2024-10-31 22:00:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 211 states have (on average 1.033175355450237) internal successors, (218), 213 states have internal predecessors, (218), 26 states have call successors, (26), 25 states have call predecessors, (26), 25 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-31 22:00:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 270 transitions. [2024-10-31 22:00:54,919 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 270 transitions. Word has length 86 [2024-10-31 22:00:54,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:54,920 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 270 transitions. [2024-10-31 22:00:54,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:54,920 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 270 transitions. [2024-10-31 22:00:54,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-31 22:00:54,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:54,923 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:54,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:55,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-31 22:00:55,127 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:00:55,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:55,128 INFO L85 PathProgramCache]: Analyzing trace with hash 56836554, now seen corresponding path program 2 times [2024-10-31 22:00:55,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:55,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359198131] [2024-10-31 22:00:55,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:55,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:56,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:56,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:56,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359198131] [2024-10-31 22:00:56,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359198131] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:56,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504088144] [2024-10-31 22:00:56,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:56,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:56,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:56,889 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:56,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:00:57,000 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:57,000 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:57,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-31 22:00:57,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:59,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:59,160 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:01,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:01,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504088144] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:01,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:01,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 102 [2024-10-31 22:01:01,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361110652] [2024-10-31 22:01:01,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:01,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2024-10-31 22:01:01,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:01,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2024-10-31 22:01:01,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1308, Invalid=8994, Unknown=0, NotChecked=0, Total=10302 [2024-10-31 22:01:01,391 INFO L87 Difference]: Start difference. First operand 265 states and 270 transitions. Second operand has 102 states, 99 states have (on average 2.919191919191919) internal successors, (289), 54 states have internal predecessors, (289), 49 states have call successors, (49), 48 states have call predecessors, (49), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:04,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:04,964 INFO L93 Difference]: Finished difference Result 359 states and 365 transitions. [2024-10-31 22:01:04,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-31 22:01:04,965 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 99 states have (on average 2.919191919191919) internal successors, (289), 54 states have internal predecessors, (289), 49 states have call successors, (49), 48 states have call predecessors, (49), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2024-10-31 22:01:04,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:01:04,967 INFO L225 Difference]: With dead ends: 359 [2024-10-31 22:01:04,967 INFO L226 Difference]: Without dead ends: 274 [2024-10-31 22:01:04,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 227 SyntacticMatches, 42 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8234 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=4038, Invalid=18612, Unknown=0, NotChecked=0, Total=22650 [2024-10-31 22:01:04,973 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 1187 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:01:04,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 902 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-31 22:01:04,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-10-31 22:01:04,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 271. [2024-10-31 22:01:04,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 215 states have (on average 1.0186046511627906) internal successors, (219), 217 states have internal predecessors, (219), 27 states have call successors, (27), 26 states have call predecessors, (27), 26 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-31 22:01:04,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 273 transitions. [2024-10-31 22:01:04,999 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 273 transitions. Word has length 161 [2024-10-31 22:01:05,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:01:05,000 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 273 transitions. [2024-10-31 22:01:05,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 99 states have (on average 2.919191919191919) internal successors, (289), 54 states have internal predecessors, (289), 49 states have call successors, (49), 48 states have call predecessors, (49), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:05,001 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 273 transitions. [2024-10-31 22:01:05,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-31 22:01:05,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:01:05,003 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 24, 24, 1, 1, 1, 1] [2024-10-31 22:01:05,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-31 22:01:05,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-31 22:01:05,208 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 22:01:05,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:05,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1844684337, now seen corresponding path program 4 times [2024-10-31 22:01:05,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:05,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684588081] [2024-10-31 22:01:05,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:05,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:07,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2076 backedges. 0 proven. 2076 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:07,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:07,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684588081] [2024-10-31 22:01:07,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684588081] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:07,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121551705] [2024-10-31 22:01:07,146 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:01:07,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:07,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,147 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_867738cc-04ef-4c91-9450-459422843d35/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-31 22:01:07,239 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:01:07,240 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:01:07,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-10-31 22:01:07,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:07,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2076 backedges. 0 proven. 2076 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:07,603 INFO L311 TraceCheckSpWp]: Computing backward predicates...