./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 32bit --witnessprinter.graph.data.programhash 195211c9f868f5964f7b285740d659c730bcb8c4a7a1535db6072c2ad23ac8ff --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:52:39,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:52:39,569 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 20:52:39,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:52:39,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:52:39,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:52:39,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:52:39,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:52:39,611 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:52:39,612 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:52:39,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:52:39,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:52:39,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:52:39,613 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:52:39,614 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:52:39,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:52:39,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:52:39,615 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 20:52:39,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:52:39,615 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 20:52:39,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:52:39,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:52:39,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:52:39,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:52:39,617 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:52:39,617 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:52:39,618 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:52:39,618 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 20:52:39,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:52:39,619 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:52:39,619 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:52:39,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:52:39,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:52:39,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:52:39,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:52:39,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:52:39,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:52:39,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:52:39,621 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:52:39,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:52:39,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:52:39,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:52:39,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:52:39,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:52:39,624 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 195211c9f868f5964f7b285740d659c730bcb8c4a7a1535db6072c2ad23ac8ff [2024-10-11 20:52:39,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:52:39,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:52:39,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:52:39,903 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:52:39,904 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:52:39,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c [2024-10-11 20:52:41,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:52:41,546 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:52:41,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c [2024-10-11 20:52:41,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/48f4da7e7/1a6f7bc998eb4734b5895c541e1e76a9/FLAG7c6ba6b0e [2024-10-11 20:52:41,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/48f4da7e7/1a6f7bc998eb4734b5895c541e1e76a9 [2024-10-11 20:52:41,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:52:41,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:52:41,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:52:41,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:52:41,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:52:41,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2509fc85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41, skipping insertion in model container [2024-10-11 20:52:41,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:52:41,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:52:41,791 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:52:41,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:52:41,819 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:52:41,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41 WrapperNode [2024-10-11 20:52:41,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:52:41,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:52:41,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:52:41,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:52:41,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,834 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,854 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2024-10-11 20:52:41,855 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:52:41,856 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:52:41,856 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:52:41,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:52:41,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,872 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,882 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 20:52:41,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:52:41,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:52:41,892 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:52:41,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:52:41,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (1/1) ... [2024-10-11 20:52:41,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:52:41,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:52:41,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:52:41,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:52:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 20:52:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 20:52:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:52:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:52:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 20:52:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 20:52:42,046 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:52:42,049 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:52:42,221 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-10-11 20:52:42,221 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:52:42,253 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:52:42,254 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 20:52:42,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:52:42 BoogieIcfgContainer [2024-10-11 20:52:42,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:52:42,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:52:42,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:52:42,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:52:42,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:52:41" (1/3) ... [2024-10-11 20:52:42,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f60dd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:52:42, skipping insertion in model container [2024-10-11 20:52:42,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:52:41" (2/3) ... [2024-10-11 20:52:42,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f60dd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:52:42, skipping insertion in model container [2024-10-11 20:52:42,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:52:42" (3/3) ... [2024-10-11 20:52:42,266 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound20.c [2024-10-11 20:52:42,286 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:52:42,286 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 20:52:42,348 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:52:42,354 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;@45b31e3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:52:42,354 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 20:52:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:52:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 20:52:42,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:52:42,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 20:52:42,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:52:42,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:52:42,371 INFO L85 PathProgramCache]: Analyzing trace with hash 77105, now seen corresponding path program 1 times [2024-10-11 20:52:42,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:52:42,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143851518] [2024-10-11 20:52:42,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:52:42,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:52:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:52:42,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:52:42,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143851518] [2024-10-11 20:52:42,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143851518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:52:42,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:52:42,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:52:42,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687142051] [2024-10-11 20:52:42,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:52:42,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:52:42,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:52:42,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:52:42,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:52:42,599 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 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 4 states, 3 states have (on average 1.0) 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) [2024-10-11 20:52:42,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:52:42,666 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2024-10-11 20:52:42,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:52:42,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 [2024-10-11 20:52:42,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:52:42,675 INFO L225 Difference]: With dead ends: 37 [2024-10-11 20:52:42,675 INFO L226 Difference]: Without dead ends: 17 [2024-10-11 20:52:42,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:52:42,681 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:52:42,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 37 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:52:42,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-11 20:52:42,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-10-11 20:52:42,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:52:42,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-10-11 20:52:42,709 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2024-10-11 20:52:42,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:52:42,709 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-10-11 20:52:42,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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) [2024-10-11 20:52:42,710 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-10-11 20:52:42,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 20:52:42,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:52:42,711 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:52:42,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:52:42,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:52:42,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:52:42,712 INFO L85 PathProgramCache]: Analyzing trace with hash 2116758999, now seen corresponding path program 1 times [2024-10-11 20:52:42,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:52:42,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121606593] [2024-10-11 20:52:42,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:52:42,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:52:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:42,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 20:52:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:42,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:52:42,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:52:42,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121606593] [2024-10-11 20:52:42,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121606593] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:52:42,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912594823] [2024-10-11 20:52:42,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:52:42,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:52:42,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:52:42,981 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:52:42,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 20:52:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:43,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:52:43,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:52:43,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:52:43,129 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:52:43,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912594823] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:52:43,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:52:43,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-11 20:52:43,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901171404] [2024-10-11 20:52:43,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:52:43,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:52:43,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:52:43,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:52:43,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:52:43,133 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:52:43,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:52:43,182 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-10-11 20:52:43,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 20:52:43,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-10-11 20:52:43,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:52:43,183 INFO L225 Difference]: With dead ends: 17 [2024-10-11 20:52:43,183 INFO L226 Difference]: Without dead ends: 16 [2024-10-11 20:52:43,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:52:43,185 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:52:43,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 12 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:52:43,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-10-11 20:52:43,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-10-11 20:52:43,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:52:43,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-10-11 20:52:43,189 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2024-10-11 20:52:43,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:52:43,190 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-10-11 20:52:43,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:52:43,190 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-10-11 20:52:43,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 20:52:43,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:52:43,191 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:52:43,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 20:52:43,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:52:43,392 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:52:43,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:52:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1195019570, now seen corresponding path program 1 times [2024-10-11 20:52:43,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:52:43,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162873083] [2024-10-11 20:52:43,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:52:43,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:52:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:43,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 20:52:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:43,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:52:43,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:52:43,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162873083] [2024-10-11 20:52:43,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162873083] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:52:43,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650973833] [2024-10-11 20:52:43,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:52:43,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:52:43,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:52:43,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:52:43,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 20:52:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:43,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:52:43,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:52:43,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:52:43,644 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:52:43,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:52:43,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650973833] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:52:43,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:52:43,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 5] total 12 [2024-10-11 20:52:43,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495746355] [2024-10-11 20:52:43,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:52:43,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 20:52:43,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:52:43,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 20:52:43,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:52:43,720 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 13 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:52:43,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:52:43,857 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2024-10-11 20:52:43,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 20:52:43,857 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 13 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 14 [2024-10-11 20:52:43,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:52:43,858 INFO L225 Difference]: With dead ends: 46 [2024-10-11 20:52:43,858 INFO L226 Difference]: Without dead ends: 45 [2024-10-11 20:52:43,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-11 20:52:43,860 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 28 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:52:43,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 41 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:52:43,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-11 20:52:43,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-11 20:52:43,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 36 states have internal predecessors, (37), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 20:52:43,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2024-10-11 20:52:43,871 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 14 [2024-10-11 20:52:43,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:52:43,871 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2024-10-11 20:52:43,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 13 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:52:43,871 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2024-10-11 20:52:43,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 20:52:43,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:52:43,873 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-10-11 20:52:43,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 20:52:44,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:52:44,074 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:52:44,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:52:44,075 INFO L85 PathProgramCache]: Analyzing trace with hash -827443584, now seen corresponding path program 2 times [2024-10-11 20:52:44,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:52:44,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262274785] [2024-10-11 20:52:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:52:44,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:52:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:44,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 20:52:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:44,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 20:52:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:44,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 20:52:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:44,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 20:52:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 20:52:44,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:52:44,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262274785] [2024-10-11 20:52:44,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262274785] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:52:44,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419880965] [2024-10-11 20:52:44,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:52:44,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:52:44,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:52:44,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:52:44,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 20:52:44,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:52:44,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:52:44,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 20:52:44,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:52:44,632 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:52:44,633 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:52:44,845 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 20:52:44,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419880965] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:52:44,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:52:44,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 24 [2024-10-11 20:52:44,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045458233] [2024-10-11 20:52:44,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:52:44,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 20:52:44,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:52:44,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 20:52:44,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2024-10-11 20:52:44,850 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 25 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 25 states have internal predecessors, (68), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-11 20:52:45,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:52:45,268 INFO L93 Difference]: Finished difference Result 106 states and 111 transitions. [2024-10-11 20:52:45,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-11 20:52:45,269 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 25 states have internal predecessors, (68), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 44 [2024-10-11 20:52:45,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:52:45,272 INFO L225 Difference]: With dead ends: 106 [2024-10-11 20:52:45,272 INFO L226 Difference]: Without dead ends: 105 [2024-10-11 20:52:45,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=576, Invalid=1230, Unknown=0, NotChecked=0, Total=1806 [2024-10-11 20:52:45,274 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 76 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:52:45,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 88 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:52:45,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-11 20:52:45,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-10-11 20:52:45,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.0119047619047619) internal successors, (85), 84 states have internal predecessors, (85), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 20:52:45,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2024-10-11 20:52:45,294 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 44 [2024-10-11 20:52:45,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:52:45,295 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2024-10-11 20:52:45,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 25 states have internal predecessors, (68), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-11 20:52:45,295 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2024-10-11 20:52:45,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-11 20:52:45,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:52:45,298 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2024-10-11 20:52:45,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 20:52:45,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:52:45,499 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:52:45,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:52:45,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1379912804, now seen corresponding path program 3 times [2024-10-11 20:52:45,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:52:45,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683064992] [2024-10-11 20:52:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:52:45,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:52:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 20:52:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 20:52:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 20:52:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 20:52:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 20:52:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 20:52:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 20:52:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 20:52:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 20:52:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 20:52:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:52:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-11 20:52:46,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:52:46,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683064992] [2024-10-11 20:52:46,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683064992] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:52:46,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768219479] [2024-10-11 20:52:46,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:52:46,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:52:46,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:52:46,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:52:46,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 20:52:46,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 20:52:46,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:52:46,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:52:46,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:52:46,418 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2024-10-11 20:52:46,419 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:52:46,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768219479] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:52:46,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:52:46,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [24] total 27 [2024-10-11 20:52:46,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31540318] [2024-10-11 20:52:46,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:52:46,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:52:46,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:52:46,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:52:46,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-10-11 20:52:46,423 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:52:46,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:52:46,481 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2024-10-11 20:52:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:52:46,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 104 [2024-10-11 20:52:46,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:52:46,483 INFO L225 Difference]: With dead ends: 105 [2024-10-11 20:52:46,483 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 20:52:46,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=221, Invalid=649, Unknown=0, NotChecked=0, Total=870 [2024-10-11 20:52:46,485 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:52:46,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:52:46,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 20:52:46,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 20:52:46,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:52:46,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 20:52:46,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2024-10-11 20:52:46,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:52:46,489 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 20:52:46,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:52:46,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 20:52:46,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 20:52:46,494 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-11 20:52:46,495 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-11 20:52:46,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 20:52:46,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:52:46,699 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-10-11 20:52:46,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 20:52:46,813 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 20:52:46,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 08:52:46 BoogieIcfgContainer [2024-10-11 20:52:46,829 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 20:52:46,829 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 20:52:46,829 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 20:52:46,829 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 20:52:46,830 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:52:42" (3/4) ... [2024-10-11 20:52:46,831 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 20:52:46,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-11 20:52:46,838 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-11 20:52:46,839 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 20:52:46,839 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 20:52:46,839 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 20:52:46,920 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 20:52:46,920 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 20:52:46,920 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 20:52:46,921 INFO L158 Benchmark]: Toolchain (without parser) took 5353.23ms. Allocated memory was 169.9MB in the beginning and 239.1MB in the end (delta: 69.2MB). Free memory was 115.0MB in the beginning and 202.4MB in the end (delta: -87.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 20:52:46,921 INFO L158 Benchmark]: CDTParser took 1.19ms. Allocated memory is still 169.9MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 20:52:46,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.06ms. Allocated memory is still 169.9MB. Free memory was 115.0MB in the beginning and 102.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 20:52:46,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.62ms. Allocated memory is still 169.9MB. Free memory was 102.8MB in the beginning and 101.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 20:52:46,922 INFO L158 Benchmark]: Boogie Preprocessor took 35.20ms. Allocated memory is still 169.9MB. Free memory was 101.7MB in the beginning and 99.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 20:52:46,922 INFO L158 Benchmark]: RCFGBuilder took 363.73ms. Allocated memory is still 169.9MB. Free memory was 99.6MB in the beginning and 88.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 20:52:46,922 INFO L158 Benchmark]: TraceAbstraction took 4570.29ms. Allocated memory was 169.9MB in the beginning and 239.1MB in the end (delta: 69.2MB). Free memory was 87.7MB in the beginning and 206.6MB in the end (delta: -118.8MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2024-10-11 20:52:46,923 INFO L158 Benchmark]: Witness Printer took 91.44ms. Allocated memory is still 239.1MB. Free memory was 206.6MB in the beginning and 202.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 20:52:46,927 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19ms. Allocated memory is still 169.9MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.06ms. Allocated memory is still 169.9MB. Free memory was 115.0MB in the beginning and 102.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.62ms. Allocated memory is still 169.9MB. Free memory was 102.8MB in the beginning and 101.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.20ms. Allocated memory is still 169.9MB. Free memory was 101.7MB in the beginning and 99.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.73ms. Allocated memory is still 169.9MB. Free memory was 99.6MB in the beginning and 88.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4570.29ms. Allocated memory was 169.9MB in the beginning and 239.1MB in the end (delta: 69.2MB). Free memory was 87.7MB in the beginning and 206.6MB in the end (delta: -118.8MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. * Witness Printer took 91.44ms. Allocated memory is still 239.1MB. Free memory was 206.6MB in the beginning and 202.4MB in the end (delta: 4.1MB). 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: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 194 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 39 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 335 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=4, InterpolantAutomatonStates: 63, 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 353 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 400 ConstructedInterpolants, 0 QuantifiedInterpolants, 864 SizeOfPredicates, 16 NumberOfNonLiveVariables, 292 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 710/1189 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (((1 <= counter) && (counter <= 20)) || (counter == 0)) RESULT: Ultimate proved your program to be correct! [2024-10-11 20:52:46,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE