./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/divmul_buf_diverge.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/divmul_buf_diverge.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX --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 8967c0a6dd6f26859048ef07f7346401bdb19327ee452e685df9b5c4b7492d34 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:38:01,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:38:01,903 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:38:01,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:38:01,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:38:01,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:38:01,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:38:01,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:38:01,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:38:01,952 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:38:01,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:38:01,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:38:01,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:38:01,954 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:38:01,955 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:38:01,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:38:01,959 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:38:01,963 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:38:01,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:38:01,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:38:01,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:38:01,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:38:01,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:38:01,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:38:01,966 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:38:01,967 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:38:01,967 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:38:01,967 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:38:01,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:38:01,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:38:01,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:38:01,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:38:01,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:38:01,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:38:01,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:38:01,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:38:01,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:38:01,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:38:01,973 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:38:01,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:38:01,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:38:01,974 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:38:01,974 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:38:01,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:38:01,975 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_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8967c0a6dd6f26859048ef07f7346401bdb19327ee452e685df9b5c4b7492d34 [2024-11-08 17:38:02,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:38:02,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:38:02,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:38:02,391 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:38:02,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:38:02,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/float-benchs/divmul_buf_diverge.c Unable to find full path for "g++" [2024-11-08 17:38:04,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:38:04,989 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:38:04,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/sv-benchmarks/c/float-benchs/divmul_buf_diverge.c [2024-11-08 17:38:04,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/data/86a325cf7/40cd8576f54d450bb06135a8fcde39ac/FLAGaa7ae2860 [2024-11-08 17:38:05,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/data/86a325cf7/40cd8576f54d450bb06135a8fcde39ac [2024-11-08 17:38:05,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:38:05,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:38:05,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:38:05,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:38:05,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:38:05,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae6893e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05, skipping insertion in model container [2024-11-08 17:38:05,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:38:05,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:38:05,666 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:38:05,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:38:05,708 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:38:05,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05 WrapperNode [2024-11-08 17:38:05,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:38:05,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:38:05,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:38:05,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:38:05,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,750 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 51 [2024-11-08 17:38:05,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:38:05,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:38:05,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:38:05,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:38:05,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,768 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,782 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]. [2024-11-08 17:38:05,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:38:05,802 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:38:05,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:38:05,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:38:05,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (1/1) ... [2024-11-08 17:38:05,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:38:05,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:05,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:05,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:38:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:38:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:38:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:38:05,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:38:05,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:38:05,997 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:38:06,224 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 17:38:06,224 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:38:06,242 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:38:06,244 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:38:06,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:38:06 BoogieIcfgContainer [2024-11-08 17:38:06,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:38:06,250 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:38:06,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:38:06,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:38:06,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:38:05" (1/3) ... [2024-11-08 17:38:06,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202ac28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:38:06, skipping insertion in model container [2024-11-08 17:38:06,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:05" (2/3) ... [2024-11-08 17:38:06,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202ac28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:38:06, skipping insertion in model container [2024-11-08 17:38:06,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:38:06" (3/3) ... [2024-11-08 17:38:06,261 INFO L112 eAbstractionObserver]: Analyzing ICFG divmul_buf_diverge.c [2024-11-08 17:38:06,284 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:38:06,285 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:38:06,375 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:38:06,381 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;@7dd8f23a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:38:06,381 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:38:06,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:06,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 17:38:06,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:38:06,395 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:38:06,396 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 17:38:06,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:06,405 INFO L85 PathProgramCache]: Analyzing trace with hash 150196619, now seen corresponding path program 1 times [2024-11-08 17:38:06,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:06,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948095064] [2024-11-08 17:38:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:06,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:06,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:38:06,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948095064] [2024-11-08 17:38:06,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948095064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:38:06,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:38:06,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:38:06,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902950120] [2024-11-08 17:38:06,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:38:06,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:38:06,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:38:06,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:38:06,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:38:06,749 INFO L87 Difference]: Start difference. First operand has 21 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:06,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:38:06,829 INFO L93 Difference]: Finished difference Result 48 states and 62 transitions. [2024-11-08 17:38:06,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:38:06,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-08 17:38:06,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:38:06,847 INFO L225 Difference]: With dead ends: 48 [2024-11-08 17:38:06,847 INFO L226 Difference]: Without dead ends: 22 [2024-11-08 17:38:06,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:38:06,856 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:38:06,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 43 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:38:06,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-08 17:38:06,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-08 17:38:06,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:06,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2024-11-08 17:38:06,898 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 8 [2024-11-08 17:38:06,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:38:06,899 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2024-11-08 17:38:06,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:06,900 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2024-11-08 17:38:06,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 17:38:06,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:38:06,901 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 17:38:06,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:38:06,902 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 17:38:06,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:06,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1489522213, now seen corresponding path program 1 times [2024-11-08 17:38:06,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:06,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153683657] [2024-11-08 17:38:06,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:06,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:07,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:38:07,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153683657] [2024-11-08 17:38:07,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153683657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:38:07,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692846019] [2024-11-08 17:38:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:07,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:38:07,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:07,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:38:07,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:38:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:07,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:38:07,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:07,469 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:38:07,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692846019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:38:07,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:38:07,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-08 17:38:07,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956804834] [2024-11-08 17:38:07,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:38:07,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:38:07,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:38:07,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:38:07,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:38:07,477 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:07,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:38:07,528 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2024-11-08 17:38:07,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:38:07,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 17:38:07,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:38:07,531 INFO L225 Difference]: With dead ends: 22 [2024-11-08 17:38:07,531 INFO L226 Difference]: Without dead ends: 21 [2024-11-08 17:38:07,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:38:07,535 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:38:07,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:38:07,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-08 17:38:07,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-08 17:38:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2024-11-08 17:38:07,545 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 15 [2024-11-08 17:38:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:38:07,545 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2024-11-08 17:38:07,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2024-11-08 17:38:07,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 17:38:07,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:38:07,548 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 17:38:07,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:38:07,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:38:07,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 17:38:07,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:07,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1069451714, now seen corresponding path program 1 times [2024-11-08 17:38:07,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:07,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917338937] [2024-11-08 17:38:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:07,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:07,898 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:38:07,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:38:07,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917338937] [2024-11-08 17:38:07,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917338937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:38:07,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:38:07,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:38:07,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540433408] [2024-11-08 17:38:07,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:38:07,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:38:07,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:38:07,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:38:07,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:38:07,906 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:07,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:38:07,936 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2024-11-08 17:38:07,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:38:07,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-08 17:38:07,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:38:07,940 INFO L225 Difference]: With dead ends: 21 [2024-11-08 17:38:07,940 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 17:38:07,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:38:07,942 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:38:07,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:38:07,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 17:38:07,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 17:38:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:07,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 17:38:07,946 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-11-08 17:38:07,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:38:07,947 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:38:07,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:07,947 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 17:38:07,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 17:38:07,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 17:38:07,956 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 17:38:07,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:38:07,962 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 17:38:07,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 17:38:07,988 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:38:08,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:38:08 BoogieIcfgContainer [2024-11-08 17:38:08,008 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:38:08,009 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:38:08,009 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:38:08,009 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:38:08,010 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:38:06" (3/4) ... [2024-11-08 17:38:08,012 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 17:38:08,022 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-08 17:38:08,022 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 17:38:08,022 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 17:38:08,023 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 17:38:08,122 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:38:08,122 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 17:38:08,123 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:38:08,127 INFO L158 Benchmark]: Toolchain (without parser) took 2775.51ms. Allocated memory is still 167.8MB. Free memory was 130.0MB in the beginning and 113.1MB in the end (delta: 16.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-08 17:38:08,128 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 125.8MB. Free memory was 99.2MB in the beginning and 99.2MB in the end (delta: 20.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:38:08,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.89ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 117.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 17:38:08,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.27ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 115.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:38:08,130 INFO L158 Benchmark]: Boogie Preprocessor took 50.04ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 114.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:38:08,130 INFO L158 Benchmark]: RCFGBuilder took 443.42ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 103.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 17:38:08,131 INFO L158 Benchmark]: TraceAbstraction took 1757.90ms. Allocated memory is still 167.8MB. Free memory was 102.8MB in the beginning and 118.1MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:38:08,133 INFO L158 Benchmark]: Witness Printer took 117.77ms. Allocated memory is still 167.8MB. Free memory was 118.1MB in the beginning and 113.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:38:08,136 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 125.8MB. Free memory was 99.2MB in the beginning and 99.2MB in the end (delta: 20.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.89ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 117.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.27ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 115.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.04ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 114.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.42ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 103.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1757.90ms. Allocated memory is still 167.8MB. Free memory was 102.8MB in the beginning and 118.1MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 117.77ms. Allocated memory is still 167.8MB. Free memory was 118.1MB in the beginning and 113.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 31 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 13/19 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) RESULT: Ultimate proved your program to be correct! [2024-11-08 17:38:08,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668d191c-0921-4638-a210-b885bf94e8a1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE