/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/xcsp/aim-100-2-0-unsat-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 12:49:53,479 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 12:49:53,548 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 12:49:53,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 12:49:53,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 12:49:53,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 12:49:53,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 12:49:53,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 12:49:53,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 12:49:53,576 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 12:49:53,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 12:49:53,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 12:49:53,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 12:49:53,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 12:49:53,578 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 12:49:53,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 12:49:53,578 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 12:49:53,579 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 12:49:53,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 12:49:53,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 12:49:53,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 12:49:53,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 12:49:53,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 12:49:53,580 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 12:49:53,580 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 12:49:53,580 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 12:49:53,580 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 12:49:53,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 12:49:53,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 12:49:53,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 12:49:53,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 12:49:53,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 12:49:53,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 12:49:53,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 12:49:53,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 12:49:53,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 12:49:53,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 12:49:53,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 12:49:53,582 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 12:49:53,582 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 12:49:53,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 12:49:53,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 12:49:53,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 12:49:53,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 12:49:53,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 12:49:53,583 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 12:49:53,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 12:49:53,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 12:49:53,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 12:49:53,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 12:49:53,789 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 12:49:53,790 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 12:49:53,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/xcsp/aim-100-2-0-unsat-2.c [2023-12-25 12:49:54,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 12:49:55,019 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 12:49:55,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/xcsp/aim-100-2-0-unsat-2.c [2023-12-25 12:49:55,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81ac83623/b10bcc0cd254476aac19ed38eeedfd64/FLAGec4beb096 [2023-12-25 12:49:55,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81ac83623/b10bcc0cd254476aac19ed38eeedfd64 [2023-12-25 12:49:55,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 12:49:55,042 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 12:49:55,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 12:49:55,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 12:49:55,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 12:49:55,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350a16a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55, skipping insertion in model container [2023-12-25 12:49:55,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,088 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 12:49:55,327 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/aim-100-2-0-unsat-2.c[21261,21274] [2023-12-25 12:49:55,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 12:49:55,346 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 12:49:55,419 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/aim-100-2-0-unsat-2.c[21261,21274] [2023-12-25 12:49:55,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 12:49:55,453 INFO L206 MainTranslator]: Completed translation [2023-12-25 12:49:55,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55 WrapperNode [2023-12-25 12:49:55,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 12:49:55,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 12:49:55,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 12:49:55,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 12:49:55,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,518 INFO L138 Inliner]: procedures = 13, calls = 399, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 808 [2023-12-25 12:49:55,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 12:49:55,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 12:49:55,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 12:49:55,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 12:49:55,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,541 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,554 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]. [2023-12-25 12:49:55,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 12:49:55,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 12:49:55,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 12:49:55,582 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 12:49:55,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (1/1) ... [2023-12-25 12:49:55,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 12:49:55,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 12:49:55,606 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) [2023-12-25 12:49:55,624 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 [2023-12-25 12:49:55,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 12:49:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 12:49:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 12:49:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 12:49:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2023-12-25 12:49:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2023-12-25 12:49:55,757 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 12:49:55,761 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 12:49:56,377 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 12:49:56,409 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 12:49:56,409 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 12:49:56,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 12:49:56 BoogieIcfgContainer [2023-12-25 12:49:56,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 12:49:56,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 12:49:56,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 12:49:56,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 12:49:56,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 12:49:55" (1/3) ... [2023-12-25 12:49:56,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33371647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 12:49:56, skipping insertion in model container [2023-12-25 12:49:56,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 12:49:55" (2/3) ... [2023-12-25 12:49:56,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33371647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 12:49:56, skipping insertion in model container [2023-12-25 12:49:56,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 12:49:56" (3/3) ... [2023-12-25 12:49:56,416 INFO L112 eAbstractionObserver]: Analyzing ICFG aim-100-2-0-unsat-2.c [2023-12-25 12:49:56,428 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 12:49:56,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 12:49:56,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 12:49:56,484 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;@5fe59d85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 12:49:56,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 12:49:56,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 500 states, 105 states have (on average 1.019047619047619) internal successors, (107), 106 states have internal predecessors, (107), 392 states have call successors, (392), 1 states have call predecessors, (392), 1 states have return successors, (392), 392 states have call predecessors, (392), 392 states have call successors, (392) [2023-12-25 12:49:56,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2063 [2023-12-25 12:49:56,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 12:49:56,590 INFO L195 NwaCegarLoop]: trace histogram [392, 392, 392, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 12:49:56,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 12:49:56,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 12:49:56,595 INFO L85 PathProgramCache]: Analyzing trace with hash -390079540, now seen corresponding path program 1 times [2023-12-25 12:49:56,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 12:49:56,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554224408] [2023-12-25 12:49:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 12:49:56,608 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 [2023-12-25 12:49:56,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 12:49:56,610 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) [2023-12-25 12:49:56,614 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 [2023-12-25 12:49:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 12:49:57,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 2858 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 12:49:57,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 12:49:57,538 INFO L134 CoverageAnalysis]: Checked inductivity of 306544 backedges. 5438 proven. 0 refuted. 0 times theorem prover too weak. 301106 trivial. 0 not checked. [2023-12-25 12:49:57,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 12:49:57,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 12:49:57,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554224408] [2023-12-25 12:49:57,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554224408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 12:49:57,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 12:49:57,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 12:49:57,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75326358] [2023-12-25 12:49:57,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 12:49:57,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 12:49:57,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 12:49:57,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 12:49:57,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 12:49:57,571 INFO L87 Difference]: Start difference. First operand has 500 states, 105 states have (on average 1.019047619047619) internal successors, (107), 106 states have internal predecessors, (107), 392 states have call successors, (392), 1 states have call predecessors, (392), 1 states have return successors, (392), 392 states have call predecessors, (392), 392 states have call successors, (392) Second operand has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (392), 2 states have call predecessors, (392), 2 states have return successors, (392), 2 states have call predecessors, (392), 2 states have call successors, (392) [2023-12-25 12:49:57,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 12:49:57,643 INFO L93 Difference]: Finished difference Result 997 states and 2171 transitions. [2023-12-25 12:49:57,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 12:49:57,646 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (392), 2 states have call predecessors, (392), 2 states have return successors, (392), 2 states have call predecessors, (392), 2 states have call successors, (392) Word has length 2062 [2023-12-25 12:49:57,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 12:49:57,657 INFO L225 Difference]: With dead ends: 997 [2023-12-25 12:49:57,657 INFO L226 Difference]: Without dead ends: 499 [2023-12-25 12:49:57,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2061 GetRequests, 2061 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 12:49:57,667 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 12:49:57,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 888 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 12:49:57,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2023-12-25 12:49:57,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2023-12-25 12:49:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 105 states have (on average 1.0) internal successors, (105), 105 states have internal predecessors, (105), 392 states have call successors, (392), 1 states have call predecessors, (392), 1 states have return successors, (392), 392 states have call predecessors, (392), 392 states have call successors, (392) [2023-12-25 12:49:57,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 889 transitions. [2023-12-25 12:49:57,884 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 889 transitions. Word has length 2062 [2023-12-25 12:49:57,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 12:49:57,886 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 889 transitions. [2023-12-25 12:49:57,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (392), 2 states have call predecessors, (392), 2 states have return successors, (392), 2 states have call predecessors, (392), 2 states have call successors, (392) [2023-12-25 12:49:57,887 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 889 transitions. [2023-12-25 12:49:57,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2063 [2023-12-25 12:49:57,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 12:49:57,948 INFO L195 NwaCegarLoop]: trace histogram [392, 392, 392, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 12:49:57,965 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 [2023-12-25 12:49:58,160 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 [2023-12-25 12:49:58,161 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 12:49:58,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 12:49:58,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1712411596, now seen corresponding path program 1 times [2023-12-25 12:49:58,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 12:49:58,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920358959] [2023-12-25 12:49:58,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 12:49:58,166 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 [2023-12-25 12:49:58,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 12:49:58,168 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) [2023-12-25 12:49:58,172 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 [2023-12-25 12:50:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 12:50:04,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 2858 conjuncts, 315 conjunts are in the unsatisfiable core [2023-12-25 12:50:04,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 12:52:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 306544 backedges. 36544 proven. 55110 refuted. 0 times theorem prover too weak. 214890 trivial. 0 not checked. [2023-12-25 12:52:57,752 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 12:57:45,524 WARN L293 SmtUtils]: Spent 7.28s on a formula simplification. DAG size of input: 240 DAG size of output: 220 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-25 13:04:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 306544 backedges. 34980 proven. 55425 refuted. 0 times theorem prover too weak. 216139 trivial. 0 not checked. [2023-12-25 13:04:00,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 13:04:00,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920358959] [2023-12-25 13:04:00,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920358959] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 13:04:00,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 13:04:00,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108] total 209 [2023-12-25 13:04:00,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503343091] [2023-12-25 13:04:00,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 13:04:00,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 209 states [2023-12-25 13:04:00,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 13:04:00,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2023-12-25 13:04:00,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8046, Invalid=35426, Unknown=0, NotChecked=0, Total=43472 [2023-12-25 13:04:00,491 INFO L87 Difference]: Start difference. First operand 499 states and 889 transitions. Second operand has 209 states, 73 states have (on average 2.835616438356164) internal successors, (207), 73 states have internal predecessors, (207), 206 states have call successors, (751), 2 states have call predecessors, (751), 3 states have return successors, (753), 206 states have call predecessors, (753), 206 states have call successors, (753) Received shutdown request... [2023-12-25 13:04:07,921 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 [2023-12-25 13:04:07,921 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 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 13:04:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 13:04:08,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4123 GetRequests, 3913 SyntacticMatches, 2 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19034 ImplicationChecksByTransitivity, 132.0s TimeCoverageRelationStatistics Valid=8051, Invalid=35839, Unknown=0, NotChecked=0, Total=43890 [2023-12-25 13:04:08,018 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-12-25 13:04:08,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1526 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-12-25 13:04:08,019 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 13:04:08,039 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 [2023-12-25 13:04:08,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 [2023-12-25 13:04:08,230 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (499states) and FLOYD_HOARE automaton (currently 14 states, 209 states before enhancement),while ReachableStatesComputation was computing reachable states (37 states constructed, input type IntersectNwa). [2023-12-25 13:04:08,239 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-25 13:04:08,241 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 13:04:08,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 01:04:08 BoogieIcfgContainer [2023-12-25 13:04:08,247 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 13:04:08,247 INFO L158 Benchmark]: Toolchain (without parser) took 853205.06ms. Allocated memory was 306.2MB in the beginning and 1.2GB in the end (delta: 907.0MB). Free memory was 260.5MB in the beginning and 474.5MB in the end (delta: -214.0MB). Peak memory consumption was 693.4MB. Max. memory is 8.0GB. [2023-12-25 13:04:08,248 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory is still 135.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 13:04:08,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.24ms. Allocated memory is still 306.2MB. Free memory was 259.9MB in the beginning and 227.9MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-25 13:04:08,251 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.57ms. Allocated memory is still 306.2MB. Free memory was 227.9MB in the beginning and 220.1MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-25 13:04:08,252 INFO L158 Benchmark]: Boogie Preprocessor took 62.92ms. Allocated memory is still 306.2MB. Free memory was 220.1MB in the beginning and 214.4MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-25 13:04:08,252 INFO L158 Benchmark]: RCFGBuilder took 827.11ms. Allocated memory is still 306.2MB. Free memory was 214.4MB in the beginning and 205.1MB in the end (delta: 9.3MB). Peak memory consumption was 32.2MB. Max. memory is 8.0GB. [2023-12-25 13:04:08,252 INFO L158 Benchmark]: TraceAbstraction took 851835.35ms. Allocated memory was 306.2MB in the beginning and 1.2GB in the end (delta: 907.0MB). Free memory was 204.5MB in the beginning and 474.5MB in the end (delta: -270.0MB). Peak memory consumption was 636.0MB. Max. memory is 8.0GB. [2023-12-25 13:04:08,253 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 184.5MB. Free memory is still 135.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 411.24ms. Allocated memory is still 306.2MB. Free memory was 259.9MB in the beginning and 227.9MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.57ms. Allocated memory is still 306.2MB. Free memory was 227.9MB in the beginning and 220.1MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.92ms. Allocated memory is still 306.2MB. Free memory was 220.1MB in the beginning and 214.4MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 827.11ms. Allocated memory is still 306.2MB. Free memory was 214.4MB in the beginning and 205.1MB in the end (delta: 9.3MB). Peak memory consumption was 32.2MB. Max. memory is 8.0GB. * TraceAbstraction took 851835.35ms. Allocated memory was 306.2MB in the beginning and 1.2GB in the end (delta: 907.0MB). Free memory was 204.5MB in the beginning and 474.5MB in the end (delta: -270.0MB). Peak memory consumption was 636.0MB. 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: 627]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 627). Cancelled while NwaCegarLoop was constructing difference of abstraction (499states) and FLOYD_HOARE automaton (currently 14 states, 209 states before enhancement),while ReachableStatesComputation was computing reachable states (37 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 500 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 851.8s, OverallIterations: 2, TraceHistogramMax: 392, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 2414 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1492 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1555 IncrementalHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 922 mSDtfsCounter, 1555 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6184 GetRequests, 5974 SyntacticMatches, 2 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19034 ImplicationChecksByTransitivity, 132.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=500occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 6.2s SatisfiabilityAnalysisTime, 836.6s InterpolantComputationTime, 4124 NumberOfCodeBlocks, 4124 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6183 ConstructedInterpolants, 0 QuantifiedInterpolants, 308550 SizeOfPredicates, 174 NumberOfNonLiveVariables, 5716 ConjunctsInSsa, 316 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 809097/919632 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