/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-56.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 21:40:26,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 21:40:26,597 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 21:40:26,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 21:40:26,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 21:40:26,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 21:40:26,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 21:40:26,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 21:40:26,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 21:40:26,639 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 21:40:26,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 21:40:26,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 21:40:26,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 21:40:26,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 21:40:26,642 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 21:40:26,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 21:40:26,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 21:40:26,643 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 21:40:26,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 21:40:26,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 21:40:26,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 21:40:26,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 21:40:26,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 21:40:26,644 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 21:40:26,644 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 21:40:26,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 21:40:26,645 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 21:40:26,645 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 21:40:26,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 21:40:26,645 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 21:40:26,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 21:40:26,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 21:40:26,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 21:40:26,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 21:40:26,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 21:40:26,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 21:40:26,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 21:40:26,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 21:40:26,647 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 21:40:26,647 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 21:40:26,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 21:40:26,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 21:40:26,648 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 21:40:26,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 21:40:26,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 21:40:26,649 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 21:40:26,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 21:40:26,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 21:40:26,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 21:40:26,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 21:40:26,895 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 21:40:26,896 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 21:40:26,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-56.i [2023-12-23 21:40:27,981 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 21:40:28,203 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 21:40:28,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-56.i [2023-12-23 21:40:28,210 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384f9bfe0/f146c11a1ac2493faddd8f8fbb50239c/FLAGe9b6d18e3 [2023-12-23 21:40:28,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384f9bfe0/f146c11a1ac2493faddd8f8fbb50239c [2023-12-23 21:40:28,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 21:40:28,224 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 21:40:28,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 21:40:28,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 21:40:28,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 21:40:28,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c60f5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28, skipping insertion in model container [2023-12-23 21:40:28,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,260 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 21:40:28,390 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-56.i[916,929] [2023-12-23 21:40:28,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 21:40:28,494 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 21:40:28,511 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-56.i[916,929] [2023-12-23 21:40:28,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 21:40:28,588 INFO L206 MainTranslator]: Completed translation [2023-12-23 21:40:28,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28 WrapperNode [2023-12-23 21:40:28,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 21:40:28,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 21:40:28,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 21:40:28,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 21:40:28,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,644 INFO L138 Inliner]: procedures = 27, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 233 [2023-12-23 21:40:28,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 21:40:28,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 21:40:28,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 21:40:28,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 21:40:28,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,665 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,685 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]. [2023-12-23 21:40:28,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 21:40:28,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 21:40:28,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 21:40:28,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 21:40:28,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (1/1) ... [2023-12-23 21:40:28,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 21:40:28,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 21:40:28,735 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) [2023-12-23 21:40:28,749 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 [2023-12-23 21:40:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 21:40:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 21:40:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 21:40:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 21:40:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 21:40:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 21:40:28,878 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 21:40:28,880 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 21:40:41,703 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 21:40:41,741 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 21:40:41,742 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 21:40:41,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:40:41 BoogieIcfgContainer [2023-12-23 21:40:41,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 21:40:41,744 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 21:40:41,744 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 21:40:41,747 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 21:40:41,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:40:28" (1/3) ... [2023-12-23 21:40:41,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8d6575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:40:41, skipping insertion in model container [2023-12-23 21:40:41,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:40:28" (2/3) ... [2023-12-23 21:40:41,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8d6575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:40:41, skipping insertion in model container [2023-12-23 21:40:41,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:40:41" (3/3) ... [2023-12-23 21:40:41,749 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-56.i [2023-12-23 21:40:41,762 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 21:40:41,762 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 21:40:41,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 21:40:41,808 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;@206b300f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 21:40:41,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 21:40:41,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 59 states have (on average 1.4406779661016949) internal successors, (85), 60 states have internal predecessors, (85), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-23 21:40:41,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-12-23 21:40:41,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:40:41,830 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:40:41,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:40:41,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:40:41,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1403647550, now seen corresponding path program 1 times [2023-12-23 21:40:41,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:40:41,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499986478] [2023-12-23 21:40:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:40:41,845 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 [2023-12-23 21:40:41,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:40:41,846 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) [2023-12-23 21:40:41,850 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 [2023-12-23 21:40:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:40:42,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 21:40:42,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:40:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 1006 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2023-12-23 21:40:42,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 21:40:42,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:40:42,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499986478] [2023-12-23 21:40:42,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499986478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 21:40:42,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 21:40:42,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 21:40:42,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302018815] [2023-12-23 21:40:42,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 21:40:42,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 21:40:42,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:40:42,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 21:40:42,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 21:40:42,773 INFO L87 Difference]: Start difference. First operand has 98 states, 59 states have (on average 1.4406779661016949) internal successors, (85), 60 states have internal predecessors, (85), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) 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, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-23 21:40:47,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:40:47,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:40:47,276 INFO L93 Difference]: Finished difference Result 195 states and 349 transitions. [2023-12-23 21:40:47,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 21:40:47,279 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, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 225 [2023-12-23 21:40:47,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:40:47,285 INFO L225 Difference]: With dead ends: 195 [2023-12-23 21:40:47,285 INFO L226 Difference]: Without dead ends: 96 [2023-12-23 21:40:47,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 21:40:47,294 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-23 21:40:47,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2023-12-23 21:40:47,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-23 21:40:47,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-23 21:40:47,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 58 states have internal predecessors, (80), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-23 21:40:47,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 152 transitions. [2023-12-23 21:40:47,354 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 152 transitions. Word has length 225 [2023-12-23 21:40:47,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:40:47,354 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 152 transitions. [2023-12-23 21:40:47,355 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, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-23 21:40:47,355 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 152 transitions. [2023-12-23 21:40:47,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-12-23 21:40:47,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:40:47,366 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:40:47,398 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 (2)] Forceful destruction successful, exit code 0 [2023-12-23 21:40:47,588 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 [2023-12-23 21:40:47,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:40:47,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:40:47,590 INFO L85 PathProgramCache]: Analyzing trace with hash 309670350, now seen corresponding path program 1 times [2023-12-23 21:40:47,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:40:47,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344906941] [2023-12-23 21:40:47,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:40:47,591 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 [2023-12-23 21:40:47,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:40:47,593 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) [2023-12-23 21:40:47,595 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 [2023-12-23 21:40:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:40:48,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 21:40:48,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:40:56,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-12-23 21:40:56,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 21:40:56,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:40:56,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344906941] [2023-12-23 21:40:56,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344906941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 21:40:56,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 21:40:56,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 21:40:56,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273673841] [2023-12-23 21:40:56,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 21:40:56,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 21:40:56,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:40:56,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 21:40:56,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-23 21:40:56,730 INFO L87 Difference]: Start difference. First operand 96 states and 152 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-23 21:41:02,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 21:41:06,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 21:41:10,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:41:14,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:41:18,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:41:22,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 21:41:26,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:41:32,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 21:41:36,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 21:41:40,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 21:41:40,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:41:40,458 INFO L93 Difference]: Finished difference Result 414 states and 658 transitions. [2023-12-23 21:41:40,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 21:41:40,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 225 [2023-12-23 21:41:40,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:41:40,463 INFO L225 Difference]: With dead ends: 414 [2023-12-23 21:41:40,463 INFO L226 Difference]: Without dead ends: 319 [2023-12-23 21:41:40,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-23 21:41:40,465 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 344 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 145 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2023-12-23 21:41:40,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 498 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 203 Invalid, 10 Unknown, 0 Unchecked, 43.4s Time] [2023-12-23 21:41:40,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-12-23 21:41:40,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 282. [2023-12-23 21:41:40,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 170 states have (on average 1.3764705882352941) internal successors, (234), 170 states have internal predecessors, (234), 108 states have call successors, (108), 3 states have call predecessors, (108), 3 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-23 21:41:40,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 450 transitions. [2023-12-23 21:41:40,548 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 450 transitions. Word has length 225 [2023-12-23 21:41:40,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:41:40,552 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 450 transitions. [2023-12-23 21:41:40,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-23 21:41:40,552 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 450 transitions. [2023-12-23 21:41:40,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-12-23 21:41:40,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:41:40,554 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:41:40,579 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 (3)] Ended with exit code 0 [2023-12-23 21:41:40,768 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 [2023-12-23 21:41:40,769 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:41:40,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:41:40,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1278677552, now seen corresponding path program 1 times [2023-12-23 21:41:40,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:41:40,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237322657] [2023-12-23 21:41:40,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:41:40,770 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 [2023-12-23 21:41:40,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:41:40,771 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2023-12-23 21:41:40,773 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 (4)] Waiting until timeout for monitored process [2023-12-23 21:41:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:41:41,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 21:41:41,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:41:46,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-12-23 21:41:46,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 21:41:46,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:41:46,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237322657] [2023-12-23 21:41:46,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237322657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 21:41:46,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 21:41:46,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 21:41:46,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736565365] [2023-12-23 21:41:46,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 21:41:46,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 21:41:46,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:41:46,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 21:41:46,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 21:41:46,844 INFO L87 Difference]: Start difference. First operand 282 states and 450 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-23 21:41:48,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:41:49,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:41:53,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:41:57,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:42:00,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:42:07,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:42:11,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:42:15,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:42:16,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:42:18,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:42:18,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:42:18,115 INFO L93 Difference]: Finished difference Result 841 states and 1342 transitions. [2023-12-23 21:42:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 21:42:18,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 225 [2023-12-23 21:42:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:42:18,157 INFO L225 Difference]: With dead ends: 841 [2023-12-23 21:42:18,158 INFO L226 Difference]: Without dead ends: 560 [2023-12-23 21:42:18,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 21:42:18,160 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 40 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2023-12-23 21:42:18,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 256 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 4 Unknown, 0 Unchecked, 31.2s Time] [2023-12-23 21:42:18,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-12-23 21:42:18,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 558. [2023-12-23 21:42:18,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 335 states have (on average 1.355223880597015) internal successors, (454), 335 states have internal predecessors, (454), 216 states have call successors, (216), 6 states have call predecessors, (216), 6 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-12-23 21:42:18,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 886 transitions. [2023-12-23 21:42:18,227 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 886 transitions. Word has length 225 [2023-12-23 21:42:18,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:42:18,228 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 886 transitions. [2023-12-23 21:42:18,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-23 21:42:18,228 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 886 transitions. [2023-12-23 21:42:18,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-23 21:42:18,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:42:18,231 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:42:18,260 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 (4)] Forceful destruction successful, exit code 0 [2023-12-23 21:42:18,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 [2023-12-23 21:42:18,456 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:42:18,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:42:18,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1633325852, now seen corresponding path program 1 times [2023-12-23 21:42:18,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:42:18,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485471019] [2023-12-23 21:42:18,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:42:18,458 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 [2023-12-23 21:42:18,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:42:18,459 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) [2023-12-23 21:42:18,462 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 [2023-12-23 21:42:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:42:19,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 21:42:19,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:42:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-12-23 21:42:19,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 21:42:19,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:42:19,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485471019] [2023-12-23 21:42:19,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485471019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 21:42:19,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 21:42:19,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 21:42:19,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959699970] [2023-12-23 21:42:19,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 21:42:19,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 21:42:19,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:42:19,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 21:42:19,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 21:42:19,390 INFO L87 Difference]: Start difference. First operand 558 states and 886 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-23 21:42:23,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:42:27,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:42:31,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:42:32,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:42:32,001 INFO L93 Difference]: Finished difference Result 1360 states and 2128 transitions. [2023-12-23 21:42:32,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 21:42:32,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 226 [2023-12-23 21:42:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:42:32,007 INFO L225 Difference]: With dead ends: 1360 [2023-12-23 21:42:32,007 INFO L226 Difference]: Without dead ends: 803 [2023-12-23 21:42:32,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 21:42:32,012 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 57 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-12-23 21:42:32,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 302 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2023-12-23 21:42:32,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-12-23 21:42:32,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 795. [2023-12-23 21:42:32,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 518 states have (on average 1.3552123552123552) internal successors, (702), 524 states have internal predecessors, (702), 264 states have call successors, (264), 12 states have call predecessors, (264), 12 states have return successors, (264), 258 states have call predecessors, (264), 264 states have call successors, (264) [2023-12-23 21:42:32,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1230 transitions. [2023-12-23 21:42:32,093 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1230 transitions. Word has length 226 [2023-12-23 21:42:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:42:32,094 INFO L495 AbstractCegarLoop]: Abstraction has 795 states and 1230 transitions. [2023-12-23 21:42:32,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-23 21:42:32,094 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1230 transitions. [2023-12-23 21:42:32,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-23 21:42:32,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:42:32,097 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 21:42:32,123 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 [2023-12-23 21:42:32,312 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 [2023-12-23 21:42:32,312 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:42:32,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:42:32,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1150593592, now seen corresponding path program 1 times [2023-12-23 21:42:32,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:42:32,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197512092] [2023-12-23 21:42:32,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:42:32,314 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 [2023-12-23 21:42:32,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:42:32,315 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2023-12-23 21:42:32,316 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 (6)] Waiting until timeout for monitored process [2023-12-23 21:42:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:42:33,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-23 21:42:33,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:46:16,525 WARN L293 SmtUtils]: Spent 42.13s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:46:48,501 WARN L293 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:50:57,193 WARN L293 SmtUtils]: Spent 57.79s on a formula simplification that was a NOOP. DAG size: 83 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:54:27,807 WARN L293 SmtUtils]: Spent 54.50s on a formula simplification that was a NOOP. DAG size: 85 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-23 21:55:00,691 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 21:55:00,691 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 [2023-12-23 21:55:01,724 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 (6)] Forceful destruction successful, exit code 0 [2023-12-23 21:55:01,900 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 21:55:01,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-23 21:55:01,947 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 21:55:01,948 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 228 with TraceHistMax 36,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 21:55:01,951 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-23 21:55:01,954 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 21:55:01,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 09:55:01 BoogieIcfgContainer [2023-12-23 21:55:01,955 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 21:55:01,956 INFO L158 Benchmark]: Toolchain (without parser) took 873731.46ms. Allocated memory was 199.2MB in the beginning and 261.1MB in the end (delta: 61.9MB). Free memory was 148.4MB in the beginning and 218.2MB in the end (delta: -69.8MB). Peak memory consumption was 142.2MB. Max. memory is 8.0GB. [2023-12-23 21:55:01,956 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 199.2MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 21:55:01,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.79ms. Allocated memory is still 199.2MB. Free memory was 148.4MB in the beginning and 130.8MB in the end (delta: 17.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-23 21:55:01,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.94ms. Allocated memory is still 199.2MB. Free memory was 130.8MB in the beginning and 127.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 21:55:01,957 INFO L158 Benchmark]: Boogie Preprocessor took 61.90ms. Allocated memory is still 199.2MB. Free memory was 127.8MB in the beginning and 122.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 21:55:01,957 INFO L158 Benchmark]: RCFGBuilder took 13034.36ms. Allocated memory is still 199.2MB. Free memory was 122.9MB in the beginning and 147.1MB in the end (delta: -24.2MB). Peak memory consumption was 16.6MB. Max. memory is 8.0GB. [2023-12-23 21:55:01,958 INFO L158 Benchmark]: TraceAbstraction took 860211.35ms. Allocated memory was 199.2MB in the beginning and 261.1MB in the end (delta: 61.9MB). Free memory was 146.1MB in the beginning and 218.2MB in the end (delta: -72.1MB). Peak memory consumption was 140.3MB. Max. memory is 8.0GB. [2023-12-23 21:55:01,959 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 199.2MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 363.79ms. Allocated memory is still 199.2MB. Free memory was 148.4MB in the beginning and 130.8MB in the end (delta: 17.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.94ms. Allocated memory is still 199.2MB. Free memory was 130.8MB in the beginning and 127.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.90ms. Allocated memory is still 199.2MB. Free memory was 127.8MB in the beginning and 122.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 13034.36ms. Allocated memory is still 199.2MB. Free memory was 122.9MB in the beginning and 147.1MB in the end (delta: -24.2MB). Peak memory consumption was 16.6MB. Max. memory is 8.0GB. * TraceAbstraction took 860211.35ms. Allocated memory was 199.2MB in the beginning and 261.1MB in the end (delta: 61.9MB). Free memory was 146.1MB in the beginning and 218.2MB in the end (delta: -72.1MB). Peak memory consumption was 140.3MB. 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 228 with TraceHistMax 36,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 860.2s, OverallIterations: 5, TraceHistogramMax: 36, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 92.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 441 SdHoareTripleChecker+Valid, 91.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 441 mSDsluCounter, 1205 SdHoareTripleChecker+Invalid, 90.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 574 mSDsCounter, 148 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 268 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 148 mSolverCounterUnsat, 631 mSDtfsCounter, 268 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 899 GetRequests, 892 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=795occurred in iteration=4, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 47 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 901 NumberOfCodeBlocks, 901 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 897 ConstructedInterpolants, 5 QuantifiedInterpolants, 4496 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1471 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 10080/10080 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