./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/signedintegeroverflow-regression/UnaryMinus.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/signedintegeroverflow-regression/UnaryMinus.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 3262b2c36586df7af90b9a4a3af0788d1519ec0eb0fe49c71749ff4a584d4093 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:35:36,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:35:36,530 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-10 18:35:36,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:35:36,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:35:36,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:35:36,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:35:36,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:35:36,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:35:36,579 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:35:36,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:35:36,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:35:36,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:35:36,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:35:36,581 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:35:36,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:35:36,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 18:35:36,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:35:36,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:35:36,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 18:35:36,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:35:36,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 18:35:36,589 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:35:36,590 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 18:35:36,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:35:36,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 18:35:36,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:35:36,590 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:35:36,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:35:36,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:35:36,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:35:36,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:35:36,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:35:36,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:35:36,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 18:35:36,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:35:36,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:35:36,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:35:36,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:35:36,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:35:36,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:35:36,595 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3262b2c36586df7af90b9a4a3af0788d1519ec0eb0fe49c71749ff4a584d4093 [2024-11-10 18:35:36,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:35:36,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:35:36,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:35:36,994 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:35:36,994 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:35:36,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/signedintegeroverflow-regression/UnaryMinus.i [2024-11-10 18:35:38,258 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:35:38,541 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:35:38,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/signedintegeroverflow-regression/UnaryMinus.i [2024-11-10 18:35:38,567 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3da52e2/08e31e6ec2594eba9a273d9c9352f4d8/FLAGb968dcae5 [2024-11-10 18:35:38,884 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3da52e2/08e31e6ec2594eba9a273d9c9352f4d8 [2024-11-10 18:35:38,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:35:38,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:35:38,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:35:38,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:35:38,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:35:38,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:35:38" (1/1) ... [2024-11-10 18:35:38,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74250670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:38, skipping insertion in model container [2024-11-10 18:35:38,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:35:38" (1/1) ... [2024-11-10 18:35:38,941 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:35:39,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:35:39,272 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:35:39,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:35:39,380 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:35:39,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39 WrapperNode [2024-11-10 18:35:39,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:35:39,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:35:39,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:35:39,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:35:39,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,405 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,430 INFO L138 Inliner]: procedures = 104, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2024-11-10 18:35:39,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:35:39,439 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:35:39,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:35:39,439 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:35:39,457 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,467 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-10 18:35:39,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,469 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:35:39,477 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:35:39,477 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:35:39,477 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:35:39,478 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (1/1) ... [2024-11-10 18:35:39,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:35:39,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:35:39,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:35:39,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:35:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:35:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:35:39,650 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:35:39,652 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:35:39,706 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-10 18:35:39,707 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:35:39,727 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:35:39,727 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:35:39,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:35:39 BoogieIcfgContainer [2024-11-10 18:35:39,728 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:35:39,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:35:39,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:35:39,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:35:39,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:35:38" (1/3) ... [2024-11-10 18:35:39,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b89051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:35:39, skipping insertion in model container [2024-11-10 18:35:39,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:39" (2/3) ... [2024-11-10 18:35:39,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b89051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:35:39, skipping insertion in model container [2024-11-10 18:35:39,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:35:39" (3/3) ... [2024-11-10 18:35:39,736 INFO L112 eAbstractionObserver]: Analyzing ICFG UnaryMinus.i [2024-11-10 18:35:39,748 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:35:39,749 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 18:35:39,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:35:39,797 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;@3517d625, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:35:39,798 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-10 18:35:39,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 13 states have internal predecessors, (13), 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) [2024-11-10 18:35:39,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-10 18:35:39,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:35:39,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-10 18:35:39,806 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:35:39,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:35:39,811 INFO L85 PathProgramCache]: Analyzing trace with hash 41674, now seen corresponding path program 1 times [2024-11-10 18:35:39,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:35:39,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302599976] [2024-11-10 18:35:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:35:39,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:35:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:35:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:35:39,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:35:39,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302599976] [2024-11-10 18:35:39,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302599976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:35:39,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:35:39,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:35:39,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53898476] [2024-11-10 18:35:39,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:35:39,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:35:39,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:35:39,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:35:39,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:35:39,988 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-10 18:35:40,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:35:40,016 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2024-11-10 18:35:40,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:35:40,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-10 18:35:40,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:35:40,024 INFO L225 Difference]: With dead ends: 14 [2024-11-10 18:35:40,024 INFO L226 Difference]: Without dead ends: 5 [2024-11-10 18:35:40,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:35:40,029 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:35:40,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:35:40,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2024-11-10 18:35:40,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2024-11-10 18:35:40,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-10 18:35:40,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2024-11-10 18:35:40,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2024-11-10 18:35:40,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:35:40,050 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2024-11-10 18:35:40,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-10 18:35:40,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2024-11-10 18:35:40,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-10 18:35:40,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:35:40,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-10 18:35:40,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:35:40,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:35:40,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:35:40,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1291871, now seen corresponding path program 1 times [2024-11-10 18:35:40,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:35:40,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796706397] [2024-11-10 18:35:40,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:35:40,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:35:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 18:35:40,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 18:35:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 18:35:40,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 18:35:40,071 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 18:35:40,072 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-10 18:35:40,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-10 18:35:40,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-10 18:35:40,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-10 18:35:40,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:35:40,077 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-10 18:35:40,087 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:35:40,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:35:40 BoogieIcfgContainer [2024-11-10 18:35:40,090 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:35:40,091 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:35:40,091 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:35:40,091 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:35:40,091 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:35:39" (3/4) ... [2024-11-10 18:35:40,092 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-10 18:35:40,113 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:35:40,114 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:35:40,114 INFO L158 Benchmark]: Toolchain (without parser) took 1226.11ms. Allocated memory is still 151.0MB. Free memory was 117.6MB in the beginning and 109.8MB in the end (delta: 7.8MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-10 18:35:40,115 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:35:40,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.64ms. Allocated memory is still 151.0MB. Free memory was 117.6MB in the beginning and 101.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-10 18:35:40,115 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.77ms. Allocated memory is still 151.0MB. Free memory was 101.0MB in the beginning and 99.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:35:40,115 INFO L158 Benchmark]: Boogie Preprocessor took 37.48ms. Allocated memory is still 151.0MB. Free memory was 99.5MB in the beginning and 98.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:35:40,116 INFO L158 Benchmark]: IcfgBuilder took 250.88ms. Allocated memory is still 151.0MB. Free memory was 98.3MB in the beginning and 89.0MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 18:35:40,116 INFO L158 Benchmark]: TraceAbstraction took 360.50ms. Allocated memory is still 151.0MB. Free memory was 88.4MB in the beginning and 111.9MB in the end (delta: -23.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:35:40,116 INFO L158 Benchmark]: Witness Printer took 23.31ms. Allocated memory is still 151.0MB. Free memory was 110.9MB in the beginning and 109.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:35:40,118 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 113.2MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.64ms. Allocated memory is still 151.0MB. Free memory was 117.6MB in the beginning and 101.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.77ms. Allocated memory is still 151.0MB. Free memory was 101.0MB in the beginning and 99.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.48ms. Allocated memory is still 151.0MB. Free memory was 99.5MB in the beginning and 98.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 250.88ms. Allocated memory is still 151.0MB. Free memory was 98.3MB in the beginning and 89.0MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 360.50ms. Allocated memory is still 151.0MB. Free memory was 88.4MB in the beginning and 111.9MB in the end (delta: -23.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 23.31ms. Allocated memory is still 151.0MB. Free memory was 110.9MB in the beginning and 109.8MB in the end (delta: 1.0MB). There was no memory consumed. 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 - CounterExampleResult [Line: 333]: integer overflow possible integer overflow possible We found a FailurePath: [L332] int minInt = -2147483647 - 1; VAL [minInt=-2147483648] [L333] -minInt - UnprovableResult [Line: 333]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 333]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 333]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-10 18:35:40,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)