/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-33.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 13:33:02,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 13:33:02,457 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 13:33:02,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 13:33:02,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 13:33:02,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 13:33:02,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 13:33:02,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 13:33:02,475 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 13:33:02,476 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 13:33:02,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 13:33:02,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 13:33:02,476 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 13:33:02,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 13:33:02,477 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 13:33:02,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 13:33:02,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 13:33:02,478 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 13:33:02,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 13:33:02,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 13:33:02,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 13:33:02,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 13:33:02,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 13:33:02,479 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 13:33:02,480 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 13:33:02,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 13:33:02,480 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 13:33:02,480 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 13:33:02,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 13:33:02,481 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 13:33:02,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 13:33:02,481 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 13:33:02,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 13:33:02,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 13:33:02,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:33:02,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 13:33:02,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 13:33:02,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 13:33:02,483 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 13:33:02,483 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 13:33:02,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 13:33:02,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 13:33:02,496 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 13:33:02,496 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 13:33:02,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 13:33:02,496 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 13:33:02,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 13:33:02,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 13:33:02,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 13:33:02,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 13:33:02,678 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 13:33:02,678 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 13:33:02,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-33.i [2023-12-16 13:33:03,760 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 13:33:03,949 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 13:33:03,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-33.i [2023-12-16 13:33:03,966 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a44bc0c5/892737e339ed472aa28c68aad880304b/FLAG316de4744 [2023-12-16 13:33:03,976 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a44bc0c5/892737e339ed472aa28c68aad880304b [2023-12-16 13:33:03,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 13:33:03,980 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 13:33:03,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 13:33:03,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 13:33:03,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 13:33:03,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:33:03" (1/1) ... [2023-12-16 13:33:03,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5203073e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:03, skipping insertion in model container [2023-12-16 13:33:03,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:33:03" (1/1) ... [2023-12-16 13:33:04,011 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 13:33:04,114 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-33.i[916,929] [2023-12-16 13:33:04,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:33:04,175 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 13:33:04,184 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-33.i[916,929] [2023-12-16 13:33:04,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:33:04,231 INFO L206 MainTranslator]: Completed translation [2023-12-16 13:33:04,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04 WrapperNode [2023-12-16 13:33:04,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 13:33:04,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 13:33:04,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 13:33:04,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 13:33:04,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,252 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,276 INFO L138 Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 239 [2023-12-16 13:33:04,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 13:33:04,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 13:33:04,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 13:33:04,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 13:33:04,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,314 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]. [2023-12-16 13:33:04,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 13:33:04,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 13:33:04,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 13:33:04,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 13:33:04,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (1/1) ... [2023-12-16 13:33:04,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:33:04,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 13:33:04,394 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) [2023-12-16 13:33:04,410 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 [2023-12-16 13:33:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 13:33:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 13:33:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 13:33:04,419 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 13:33:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 13:33:04,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 13:33:04,500 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 13:33:04,502 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 13:33:08,688 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 13:33:08,758 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 13:33:08,759 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 13:33:08,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:33:08 BoogieIcfgContainer [2023-12-16 13:33:08,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 13:33:08,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 13:33:08,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 13:33:08,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 13:33:08,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:33:03" (1/3) ... [2023-12-16 13:33:08,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7c1b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:33:08, skipping insertion in model container [2023-12-16 13:33:08,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:04" (2/3) ... [2023-12-16 13:33:08,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7c1b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:33:08, skipping insertion in model container [2023-12-16 13:33:08,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:33:08" (3/3) ... [2023-12-16 13:33:08,764 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-33.i [2023-12-16 13:33:08,780 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 13:33:08,780 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 13:33:08,829 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 13:33:08,833 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@134ab127, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 13:33:08,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 13:33:08,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 56 states have (on average 1.375) internal successors, (77), 57 states have internal predecessors, (77), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 13:33:08,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-16 13:33:08,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:33:08,856 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:33:08,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:33:08,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:33:08,860 INFO L85 PathProgramCache]: Analyzing trace with hash 351880875, now seen corresponding path program 1 times [2023-12-16 13:33:08,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:33:08,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841727422] [2023-12-16 13:33:08,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:33:08,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:33:08,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:33:08,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:33:08,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 13:33:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:33:09,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 13:33:09,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:33:09,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1274 proven. 0 refuted. 0 times theorem prover too weak. 1538 trivial. 0 not checked. [2023-12-16 13:33:09,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:33:09,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:33:09,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841727422] [2023-12-16 13:33:09,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841727422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:33:09,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:33:09,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 13:33:09,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207199243] [2023-12-16 13:33:09,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:33:09,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 13:33:09,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:33:09,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 13:33:09,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:33:09,414 INFO L87 Difference]: Start difference. First operand has 97 states, 56 states have (on average 1.375) internal successors, (77), 57 states have internal predecessors, (77), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-16 13:33:12,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:33:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:33:12,758 INFO L93 Difference]: Finished difference Result 193 states and 343 transitions. [2023-12-16 13:33:12,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 13:33:12,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 235 [2023-12-16 13:33:12,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:33:12,766 INFO L225 Difference]: With dead ends: 193 [2023-12-16 13:33:12,766 INFO L226 Difference]: Without dead ends: 95 [2023-12-16 13:33:12,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:33:12,771 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 13:33:12,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 13:33:12,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-16 13:33:12,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-12-16 13:33:12,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 55 states have (on average 1.309090909090909) internal successors, (72), 55 states have internal predecessors, (72), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 13:33:12,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 148 transitions. [2023-12-16 13:33:12,806 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 148 transitions. Word has length 235 [2023-12-16 13:33:12,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:33:12,807 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 148 transitions. [2023-12-16 13:33:12,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-16 13:33:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 148 transitions. [2023-12-16 13:33:12,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-16 13:33:12,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:33:12,812 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:33:12,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 13:33:13,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:33:13,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:33:13,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:33:13,023 INFO L85 PathProgramCache]: Analyzing trace with hash 415427239, now seen corresponding path program 1 times [2023-12-16 13:33:13,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:33:13,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129344455] [2023-12-16 13:33:13,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:33:13,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:33:13,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:33:13,026 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:33:13,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 13:33:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:33:13,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 13:33:13,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:33:14,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 37 proven. 111 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2023-12-16 13:33:14,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:33:14,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:33:14,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129344455] [2023-12-16 13:33:14,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [129344455] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 13:33:14,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [498679064] [2023-12-16 13:33:14,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:33:14,364 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 13:33:14,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 13:33:14,395 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 13:33:14,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 13:33:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:33:16,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 13:33:16,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:33:17,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 37 proven. 111 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2023-12-16 13:33:17,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:33:17,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [498679064] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 13:33:17,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 13:33:17,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2023-12-16 13:33:17,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80942294] [2023-12-16 13:33:17,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 13:33:17,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 13:33:17,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:33:17,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 13:33:17,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 13:33:17,831 INFO L87 Difference]: Start difference. First operand 95 states and 148 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-16 13:33:21,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 13:33:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:33:22,707 INFO L93 Difference]: Finished difference Result 286 states and 440 transitions. [2023-12-16 13:33:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 13:33:22,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) Word has length 235 [2023-12-16 13:33:22,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:33:22,711 INFO L225 Difference]: With dead ends: 286 [2023-12-16 13:33:22,711 INFO L226 Difference]: Without dead ends: 192 [2023-12-16 13:33:22,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2023-12-16 13:33:22,713 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 103 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-16 13:33:22,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 528 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-16 13:33:22,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-12-16 13:33:22,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 99. [2023-12-16 13:33:22,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 58 states have internal predecessors, (74), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 13:33:22,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 150 transitions. [2023-12-16 13:33:22,732 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 150 transitions. Word has length 235 [2023-12-16 13:33:22,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:33:22,733 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 150 transitions. [2023-12-16 13:33:22,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-16 13:33:22,733 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 150 transitions. [2023-12-16 13:33:22,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-16 13:33:22,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:33:22,736 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:33:22,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 13:33:22,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 13:33:23,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:33:23,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:33:23,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:33:23,155 INFO L85 PathProgramCache]: Analyzing trace with hash 472685541, now seen corresponding path program 1 times [2023-12-16 13:33:23,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:33:23,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697191469] [2023-12-16 13:33:23,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:33:23,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:33:23,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:33:23,157 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:33:23,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 13:33:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:33:24,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 77 conjunts are in the unsatisfiable core [2023-12-16 13:33:24,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 13:34:20,089 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 13:34:20,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 13:34:20,107 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:34:20,107 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:34:20,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:34:20,307 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 236 with TraceHistMax 38,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-33-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-33-2-2-1 context. [2023-12-16 13:34:20,311 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 13:34:20,312 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 13:34:20,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:34:20 BoogieIcfgContainer [2023-12-16 13:34:20,323 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 13:34:20,324 INFO L158 Benchmark]: Toolchain (without parser) took 76343.61ms. Allocated memory is still 308.3MB. Free memory was 255.8MB in the beginning and 163.5MB in the end (delta: 92.4MB). Peak memory consumption was 93.4MB. Max. memory is 8.0GB. [2023-12-16 13:34:20,324 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 13:34:20,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.15ms. Allocated memory is still 308.3MB. Free memory was 255.8MB in the beginning and 238.0MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 13:34:20,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.04ms. Allocated memory is still 308.3MB. Free memory was 238.0MB in the beginning and 234.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 13:34:20,325 INFO L158 Benchmark]: Boogie Preprocessor took 79.20ms. Allocated memory is still 308.3MB. Free memory was 234.9MB in the beginning and 230.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 13:34:20,325 INFO L158 Benchmark]: RCFGBuilder took 4402.22ms. Allocated memory is still 308.3MB. Free memory was 230.1MB in the beginning and 263.1MB in the end (delta: -32.9MB). Peak memory consumption was 27.9MB. Max. memory is 8.0GB. [2023-12-16 13:34:20,326 INFO L158 Benchmark]: TraceAbstraction took 71562.87ms. Allocated memory is still 308.3MB. Free memory was 262.0MB in the beginning and 163.5MB in the end (delta: 98.6MB). Peak memory consumption was 99.1MB. Max. memory is 8.0GB. [2023-12-16 13:34:20,338 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 251.15ms. Allocated memory is still 308.3MB. Free memory was 255.8MB in the beginning and 238.0MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.04ms. Allocated memory is still 308.3MB. Free memory was 238.0MB in the beginning and 234.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 79.20ms. Allocated memory is still 308.3MB. Free memory was 234.9MB in the beginning and 230.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 4402.22ms. Allocated memory is still 308.3MB. Free memory was 230.1MB in the beginning and 263.1MB in the end (delta: -32.9MB). Peak memory consumption was 27.9MB. Max. memory is 8.0GB. * TraceAbstraction took 71562.87ms. Allocated memory is still 308.3MB. Free memory was 262.0MB in the beginning and 163.5MB in the end (delta: 98.6MB). Peak memory consumption was 99.1MB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 236 with TraceHistMax 38,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-33-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-33-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.5s, OverallIterations: 3, TraceHistogramMax: 38, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 7.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 673 SdHoareTripleChecker+Invalid, 7.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 329 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 469 IncrementalHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 344 mSDtfsCounter, 469 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 756 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 2 MinimizatonAttempts, 93 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 705 NumberOfCodeBlocks, 705 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 702 ConstructedInterpolants, 2 QuantifiedInterpolants, 1626 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1158 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 8214/8436 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 could not prove your program: Timeout Completed graceful shutdown