./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:41:08,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:41:08,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 03:41:08,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:41:08,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:41:08,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:41:08,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:41:08,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:41:08,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:41:08,989 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:41:08,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:41:08,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:41:08,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:41:08,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:41:08,991 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:41:08,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:41:08,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:41:08,993 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:41:08,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:41:08,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:41:08,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:41:08,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:41:08,995 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:41:08,995 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:41:08,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:41:08,996 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:41:08,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:41:08,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:41:08,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:41:08,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:41:08,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:41:08,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:41:08,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:41:08,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:41:08,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:41:08,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:41:08,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:41:09,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:41:09,000 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:41:09,000 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:41:09,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:41:09,001 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_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac [2023-11-29 03:41:09,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:41:09,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:41:09,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:41:09,254 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:41:09,254 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:41:09,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2023-11-29 03:41:12,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:41:12,206 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:41:12,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2023-11-29 03:41:12,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/data/47f5bb3fe/5c06729b3af54c98a87315f629b96a0b/FLAG5e5c2f4fb [2023-11-29 03:41:12,227 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/data/47f5bb3fe/5c06729b3af54c98a87315f629b96a0b [2023-11-29 03:41:12,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:41:12,232 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:41:12,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:41:12,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:41:12,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:41:12,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b41bdba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12, skipping insertion in model container [2023-11-29 03:41:12,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,260 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:41:12,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:41:12,414 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:41:12,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:41:12,449 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:41:12,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12 WrapperNode [2023-11-29 03:41:12,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:41:12,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:41:12,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:41:12,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:41:12,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,494 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-11-29 03:41:12,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:41:12,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:41:12,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:41:12,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:41:12,506 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,521 INFO L175 MemorySlicer]: Split 6 memory accesses to 1 slices as follows [6]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2023-11-29 03:41:12,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:41:12,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:41:12,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:41:12,532 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:41:12,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (1/1) ... [2023-11-29 03:41:12,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:41:12,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:12,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:41:12,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:41:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 03:41:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 03:41:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2023-11-29 03:41:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2023-11-29 03:41:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:41:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:41:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 03:41:12,660 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:41:12,661 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:41:12,766 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:41:12,785 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:41:12,786 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 03:41:12,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:41:12 BoogieIcfgContainer [2023-11-29 03:41:12,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:41:12,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:41:12,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:41:12,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:41:12,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:41:12" (1/3) ... [2023-11-29 03:41:12,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187f243f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:41:12, skipping insertion in model container [2023-11-29 03:41:12,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:12" (2/3) ... [2023-11-29 03:41:12,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187f243f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:41:12, skipping insertion in model container [2023-11-29 03:41:12,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:41:12" (3/3) ... [2023-11-29 03:41:12,795 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk1-2.i [2023-11-29 03:41:12,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:41:12,810 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 03:41:12,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:41:12,857 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4554fdbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:41:12,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 03:41:12,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.5) internal successors, (12), 12 states have internal predecessors, (12), 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) [2023-11-29 03:41:12,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 03:41:12,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:12,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 03:41:12,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 03:41:12,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:12,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1677859040, now seen corresponding path program 1 times [2023-11-29 03:41:12,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:12,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063796511] [2023-11-29 03:41:12,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:12,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:41:13,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:13,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063796511] [2023-11-29 03:41:13,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063796511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:13,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:13,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:41:13,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022202824] [2023-11-29 03:41:13,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:13,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:41:13,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:13,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:41:13,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:41:13,351 INFO L87 Difference]: Start difference. First operand has 14 states, 8 states have (on average 1.5) internal successors, (12), 12 states have internal predecessors, (12), 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 7 states, 5 states have (on average 1.0) internal successors, (5), 5 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) [2023-11-29 03:41:13,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:13,503 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2023-11-29 03:41:13,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:41:13,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.0) internal successors, (5), 5 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 [2023-11-29 03:41:13,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:13,513 INFO L225 Difference]: With dead ends: 24 [2023-11-29 03:41:13,513 INFO L226 Difference]: Without dead ends: 16 [2023-11-29 03:41:13,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:41:13,520 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:13,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 23 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:41:13,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-29 03:41:13,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2023-11-29 03:41:13,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 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) [2023-11-29 03:41:13,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-29 03:41:13,556 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2023-11-29 03:41:13,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:13,557 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-29 03:41:13,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.0) internal successors, (5), 5 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) [2023-11-29 03:41:13,557 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-29 03:41:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 03:41:13,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:13,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:41:13,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:41:13,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 03:41:13,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:13,559 INFO L85 PathProgramCache]: Analyzing trace with hash 474022726, now seen corresponding path program 1 times [2023-11-29 03:41:13,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:13,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934293569] [2023-11-29 03:41:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:13,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:41:13,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:13,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934293569] [2023-11-29 03:41:13,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934293569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:13,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:13,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:41:13,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142966876] [2023-11-29 03:41:13,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:13,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:41:13,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:13,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:41:13,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:41:13,801 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-29 03:41:13,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:13,867 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-29 03:41:13,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:41:13,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2023-11-29 03:41:13,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:13,868 INFO L225 Difference]: With dead ends: 15 [2023-11-29 03:41:13,869 INFO L226 Difference]: Without dead ends: 14 [2023-11-29 03:41:13,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:41:13,871 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:13,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:41:13,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-29 03:41:13,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-29 03:41:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2023-11-29 03:41:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-29 03:41:13,876 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2023-11-29 03:41:13,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:13,876 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-29 03:41:13,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-29 03:41:13,877 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-29 03:41:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 03:41:13,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:13,877 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:41:13,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:41:13,878 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 03:41:13,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:13,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1106934993, now seen corresponding path program 1 times [2023-11-29 03:41:13,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:13,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854480762] [2023-11-29 03:41:13,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:13,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:41:14,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:14,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854480762] [2023-11-29 03:41:14,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854480762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:14,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:14,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:41:14,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110409069] [2023-11-29 03:41:14,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:14,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:41:14,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:14,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:41:14,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:41:14,158 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 11 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2023-11-29 03:41:14,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:14,308 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-29 03:41:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:41:14,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 11 [2023-11-29 03:41:14,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:14,309 INFO L225 Difference]: With dead ends: 15 [2023-11-29 03:41:14,309 INFO L226 Difference]: Without dead ends: 14 [2023-11-29 03:41:14,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:41:14,311 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:14,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:41:14,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-29 03:41:14,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-29 03:41:14,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2023-11-29 03:41:14,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-29 03:41:14,317 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2023-11-29 03:41:14,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:14,317 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-29 03:41:14,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2023-11-29 03:41:14,318 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-29 03:41:14,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 03:41:14,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:14,318 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 03:41:14,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:41:14,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 03:41:14,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash -44753547, now seen corresponding path program 1 times [2023-11-29 03:41:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:14,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248656058] [2023-11-29 03:41:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:14,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:41:14,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:14,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248656058] [2023-11-29 03:41:14,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248656058] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:41:14,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887770479] [2023-11-29 03:41:14,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:14,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:14,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:14,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:14,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:41:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:14,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 03:41:14,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:14,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2023-11-29 03:41:14,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 03:41:14,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:41:14,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2023-11-29 03:41:14,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:41:14,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:41:15,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:41:15,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887770479] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:41:15,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:41:15,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 8] total 15 [2023-11-29 03:41:15,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894417000] [2023-11-29 03:41:15,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:41:15,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:41:15,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:15,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:41:15,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:41:15,087 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 17 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:41:15,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:15,208 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2023-11-29 03:41:15,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:41:15,209 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 4 states have call successors, (4), 3 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 12 [2023-11-29 03:41:15,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:15,209 INFO L225 Difference]: With dead ends: 13 [2023-11-29 03:41:15,209 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 03:41:15,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:41:15,211 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:15,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:41:15,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 03:41:15,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 03:41:15,213 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) [2023-11-29 03:41:15,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 03:41:15,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-11-29 03:41:15,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:15,213 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:41:15,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:41:15,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 03:41:15,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 03:41:15,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 03:41:15,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 03:41:15,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:41:15,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:15,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 03:41:15,556 INFO L899 garLoopResultBuilder]: For program point chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2023-11-29 03:41:15,557 INFO L895 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int#0)| |chunk_#in~data.base|))) (or (< (+ (select .cse0 |chunk_#in~data.offset|) 2147483648) 0) (let ((.cse2 (select |#memory_int#0| chunk_~data.base)) (.cse1 (select |#memory_int#0| |chunk_#in~data.base|))) (and (<= 0 (+ (select .cse1 0) 2147483648)) (= chunk_~data.offset 0) (<= (select .cse2 12) 2147483647) (<= 0 (+ 2147483647 (select .cse2 0))) (<= (select .cse1 12) 2147483647))) (not (= |chunk_#in~data.offset| 0)) (< 2147483647 (select .cse0 12)))) [2023-11-29 03:41:15,557 INFO L899 garLoopResultBuilder]: For program point chunkEXIT(lines 8 16) no Hoare annotation was computed. [2023-11-29 03:41:15,557 INFO L899 garLoopResultBuilder]: For program point chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2023-11-29 03:41:15,558 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-29 03:41:15,558 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2023-11-29 03:41:15,558 INFO L899 garLoopResultBuilder]: For program point chunkFINAL(lines 8 16) no Hoare annotation was computed. [2023-11-29 03:41:15,558 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 16) the Hoare annotation is: (let ((.cse5 (select |old(#memory_int#0)| |chunk_#in~data.base|)) (.cse6 (select |#memory_int#0| |chunk_#in~data.base|))) (let ((.cse0 (select .cse6 0)) (.cse1 (<= (select .cse6 12) 2147483647)) (.cse2 (not (= |chunk_#in~data.offset| 0))) (.cse4 (< 2147483647 (select .cse5 12))) (.cse3 (select .cse5 |chunk_#in~data.offset|))) (and (or (and (<= 0 (+ 2147483647 .cse0)) .cse1) .cse2 (< (+ 2147483647 .cse3) 0) .cse4) (or (< (+ .cse3 2147483648) 0) (and (<= 0 (+ .cse0 2147483648)) (<= .cse0 2147483646) .cse1) .cse2 .cse4 (< 2147483646 .cse3))))) [2023-11-29 03:41:15,558 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 10) no Hoare annotation was computed. [2023-11-29 03:41:15,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 03:41:15,559 INFO L895 garLoopResultBuilder]: At program point L30(line 30) the Hoare annotation is: (let ((.cse1 (select |#memory_int#0| |ULTIMATE.start_main_~data~0#1.base|))) (let ((.cse0 (select .cse1 0))) (and (<= 0 (+ .cse0 2147483648)) (<= (select .cse1 12) 2147483647) (<= .cse0 2147483646) (<= |ULTIMATE.start_main_~upper~0#1| 2147483647) (= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648))))) [2023-11-29 03:41:15,559 INFO L899 garLoopResultBuilder]: For program point L30-1(lines 19 33) no Hoare annotation was computed. [2023-11-29 03:41:15,559 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 03:41:15,559 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 26) no Hoare annotation was computed. [2023-11-29 03:41:15,563 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 03:41:15,565 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:41:15,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:41:15 BoogieIcfgContainer [2023-11-29 03:41:15,569 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:41:15,569 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:41:15,569 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:41:15,570 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:41:15,570 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:41:12" (3/4) ... [2023-11-29 03:41:15,572 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 03:41:15,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure chunk [2023-11-29 03:41:15,578 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 03:41:15,579 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 03:41:15,579 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 03:41:15,579 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 03:41:15,642 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:41:15,643 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 03:41:15,643 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:41:15,644 INFO L158 Benchmark]: Toolchain (without parser) took 3412.41ms. Allocated memory was 163.6MB in the beginning and 201.3MB in the end (delta: 37.7MB). Free memory was 124.3MB in the beginning and 162.0MB in the end (delta: -37.7MB). Peak memory consumption was 907.1kB. Max. memory is 16.1GB. [2023-11-29 03:41:15,644 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:41:15,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.60ms. Allocated memory is still 163.6MB. Free memory was 124.3MB in the beginning and 136.1MB in the end (delta: -11.9MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-11-29 03:41:15,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.20ms. Allocated memory is still 163.6MB. Free memory was 136.1MB in the beginning and 134.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:41:15,646 INFO L158 Benchmark]: Boogie Preprocessor took 35.99ms. Allocated memory is still 163.6MB. Free memory was 134.8MB in the beginning and 133.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:41:15,646 INFO L158 Benchmark]: RCFGBuilder took 254.58ms. Allocated memory is still 163.6MB. Free memory was 133.3MB in the beginning and 122.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 03:41:15,646 INFO L158 Benchmark]: TraceAbstraction took 2780.03ms. Allocated memory was 163.6MB in the beginning and 201.3MB in the end (delta: 37.7MB). Free memory was 122.2MB in the beginning and 166.2MB in the end (delta: -44.0MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. [2023-11-29 03:41:15,647 INFO L158 Benchmark]: Witness Printer took 74.05ms. Allocated memory is still 201.3MB. Free memory was 166.2MB in the beginning and 162.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:41:15,649 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.60ms. Allocated memory is still 163.6MB. Free memory was 124.3MB in the beginning and 136.1MB in the end (delta: -11.9MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.20ms. Allocated memory is still 163.6MB. Free memory was 136.1MB in the beginning and 134.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.99ms. Allocated memory is still 163.6MB. Free memory was 134.8MB in the beginning and 133.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 254.58ms. Allocated memory is still 163.6MB. Free memory was 133.3MB in the beginning and 122.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2780.03ms. Allocated memory was 163.6MB in the beginning and 201.3MB in the end (delta: 37.7MB). Free memory was 122.2MB in the beginning and 166.2MB in the end (delta: -44.0MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. * Witness Printer took 74.05ms. Allocated memory is still 201.3MB. Free memory was 166.2MB in the beginning and 162.0MB in the end (delta: 4.2MB). 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: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: 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 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 244 IncrementalHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 14 mSDtfsCounter, 244 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 36, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 183 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 119 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 489 SizeOfPredicates, 12 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 6/15 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 RESULT: Ultimate proved your program to be correct! [2023-11-29 03:41:15,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb738299-668e-4714-86f0-b47895c22eb5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE