/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-while_file-35.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 13:42:56,687 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 13:42:56,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 13:42:56,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 13:42:56,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 13:42:56,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 13:42:56,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 13:42:56,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 13:42:56,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 13:42:56,780 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 13:42:56,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 13:42:56,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 13:42:56,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 13:42:56,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 13:42:56,782 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 13:42:56,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 13:42:56,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 13:42:56,783 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 13:42:56,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 13:42:56,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 13:42:56,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 13:42:56,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 13:42:56,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 13:42:56,785 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 13:42:56,785 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 13:42:56,785 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 13:42:56,785 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 13:42:56,785 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 13:42:56,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 13:42:56,785 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 13:42:56,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 13:42:56,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 13:42:56,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 13:42:56,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 13:42:56,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:42:56,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 13:42:56,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 13:42:56,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 13:42:56,787 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 13:42:56,787 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 13:42:56,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 13:42:56,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 13:42:56,788 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 13:42:56,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 13:42:56,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 13:42:56,788 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 13:42:56,788 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 13:42:56,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 13:42:56,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 13:42:57,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 13:42:57,002 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 13:42:57,002 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 13:42:57,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-35.i [2023-12-16 13:42:58,024 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 13:42:58,180 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 13:42:58,180 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-35.i [2023-12-16 13:42:58,189 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72a1ccd04/972578cb89eb4a54b45cb1e930ee3724/FLAGddf6af9e8 [2023-12-16 13:42:58,204 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72a1ccd04/972578cb89eb4a54b45cb1e930ee3724 [2023-12-16 13:42:58,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 13:42:58,207 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 13:42:58,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 13:42:58,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 13:42:58,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 13:42:58,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc9efb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58, skipping insertion in model container [2023-12-16 13:42:58,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,246 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 13:42:58,358 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-while_file-35.i[916,929] [2023-12-16 13:42:58,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:42:58,425 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 13:42:58,434 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-while_file-35.i[916,929] [2023-12-16 13:42:58,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:42:58,474 INFO L206 MainTranslator]: Completed translation [2023-12-16 13:42:58,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58 WrapperNode [2023-12-16 13:42:58,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 13:42:58,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 13:42:58,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 13:42:58,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 13:42:58,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,508 INFO L138 Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 192 [2023-12-16 13:42:58,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 13:42:58,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 13:42:58,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 13:42:58,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 13:42:58,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,521 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,530 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 13:42:58,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,539 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 13:42:58,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 13:42:58,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 13:42:58,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 13:42:58,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (1/1) ... [2023-12-16 13:42:58,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:42:58,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 13:42:58,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 13:42:58,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 13:42:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 13:42:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 13:42:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 13:42:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 13:42:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 13:42:58,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 13:42:58,714 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 13:42:58,716 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 13:43:02,167 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 13:43:02,220 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 13:43:02,228 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 13:43:02,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:43:02 BoogieIcfgContainer [2023-12-16 13:43:02,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 13:43:02,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 13:43:02,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 13:43:02,233 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 13:43:02,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:42:58" (1/3) ... [2023-12-16 13:43:02,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d67459b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:43:02, skipping insertion in model container [2023-12-16 13:43:02,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:42:58" (2/3) ... [2023-12-16 13:43:02,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d67459b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:43:02, skipping insertion in model container [2023-12-16 13:43:02,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:43:02" (3/3) ... [2023-12-16 13:43:02,236 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-35.i [2023-12-16 13:43:02,247 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 13:43:02,247 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 13:43:02,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 13:43:02,279 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;@241c8f55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 13:43:02,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 13:43:02,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 48 states have internal predecessors, (71), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 13:43:02,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 13:43:02,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:43:02,296 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:43:02,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:43:02,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:43:02,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1903410182, now seen corresponding path program 1 times [2023-12-16 13:43:02,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:43:02,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991676072] [2023-12-16 13:43:02,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:43:02,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:43:02,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:43:02,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:43:02,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 13:43:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:43:02,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 13:43:02,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:43:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2023-12-16 13:43:02,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:43:02,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:43:02,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991676072] [2023-12-16 13:43:02,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991676072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:43:02,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:43:02,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 13:43:02,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559491022] [2023-12-16 13:43:02,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:43:02,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 13:43:02,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:43:02,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 13:43:02,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:43:02,815 INFO L87 Difference]: Start difference. First operand has 76 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 48 states have internal predecessors, (71), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-16 13:43:03,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:03,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:43:03,858 INFO L93 Difference]: Finished difference Result 149 states and 270 transitions. [2023-12-16 13:43:03,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 13:43:03,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 163 [2023-12-16 13:43:03,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:43:03,895 INFO L225 Difference]: With dead ends: 149 [2023-12-16 13:43:03,896 INFO L226 Difference]: Without dead ends: 74 [2023-12-16 13:43:03,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:43:03,902 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 13:43:03,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 13:43:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-12-16 13:43:03,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-12-16 13:43:03,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 46 states have internal predecessors, (65), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 13:43:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 117 transitions. [2023-12-16 13:43:03,943 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 117 transitions. Word has length 163 [2023-12-16 13:43:03,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:43:03,943 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 117 transitions. [2023-12-16 13:43:03,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-16 13:43:03,944 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 117 transitions. [2023-12-16 13:43:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 13:43:03,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:43:03,966 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:43:03,982 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 [2023-12-16 13:43:04,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:43:04,178 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:43:04,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:43:04,179 INFO L85 PathProgramCache]: Analyzing trace with hash 745329734, now seen corresponding path program 1 times [2023-12-16 13:43:04,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:43:04,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247775993] [2023-12-16 13:43:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:43:04,180 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:43:04,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:43:04,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:43:04,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 13:43:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:43:04,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 13:43:04,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:43:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-16 13:43:05,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:43:05,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:43:05,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247775993] [2023-12-16 13:43:05,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247775993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:43:05,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:43:05,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 13:43:05,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302570814] [2023-12-16 13:43:05,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:43:05,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 13:43:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:43:05,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 13:43:05,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 13:43:05,709 INFO L87 Difference]: Start difference. First operand 74 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-16 13:43:07,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:08,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:08,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:43:08,563 INFO L93 Difference]: Finished difference Result 221 states and 350 transitions. [2023-12-16 13:43:08,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 13:43:08,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2023-12-16 13:43:08,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:43:08,594 INFO L225 Difference]: With dead ends: 221 [2023-12-16 13:43:08,594 INFO L226 Difference]: Without dead ends: 148 [2023-12-16 13:43:08,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 13:43:08,595 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 129 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 13:43:08,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 439 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 13:43:08,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-16 13:43:08,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 120. [2023-12-16 13:43:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 65 states have internal predecessors, (84), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 13:43:08,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 188 transitions. [2023-12-16 13:43:08,632 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 188 transitions. Word has length 163 [2023-12-16 13:43:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:43:08,648 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 188 transitions. [2023-12-16 13:43:08,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-16 13:43:08,651 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 188 transitions. [2023-12-16 13:43:08,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-16 13:43:08,657 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:43:08,657 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:43:08,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 13:43:08,884 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 [2023-12-16 13:43:08,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:43:08,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:43:08,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1792316222, now seen corresponding path program 1 times [2023-12-16 13:43:08,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:43:08,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636430105] [2023-12-16 13:43:08,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:43:08,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:43:08,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:43:08,887 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) [2023-12-16 13:43:08,893 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 [2023-12-16 13:43:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:43:09,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 13:43:09,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:43:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-16 13:43:11,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:43:11,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:43:11,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636430105] [2023-12-16 13:43:11,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636430105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:43:11,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:43:11,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 13:43:11,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031165516] [2023-12-16 13:43:11,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:43:11,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 13:43:11,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:43:11,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 13:43:11,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 13:43:11,240 INFO L87 Difference]: Start difference. First operand 120 states and 188 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-16 13:43:12,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:14,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:18,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:20,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:23,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:24,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:25,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:43:25,797 INFO L93 Difference]: Finished difference Result 221 states and 349 transitions. [2023-12-16 13:43:25,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 13:43:25,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 164 [2023-12-16 13:43:25,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:43:25,825 INFO L225 Difference]: With dead ends: 221 [2023-12-16 13:43:25,825 INFO L226 Difference]: Without dead ends: 148 [2023-12-16 13:43:25,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 13:43:25,827 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 69 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2023-12-16 13:43:25,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 305 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 14.5s Time] [2023-12-16 13:43:25,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-16 13:43:25,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 123. [2023-12-16 13:43:25,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 68 states have internal predecessors, (89), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 13:43:25,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 193 transitions. [2023-12-16 13:43:25,849 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 193 transitions. Word has length 164 [2023-12-16 13:43:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:43:25,849 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 193 transitions. [2023-12-16 13:43:25,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-16 13:43:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 193 transitions. [2023-12-16 13:43:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 13:43:25,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:43:25,852 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:43:25,865 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 (4)] Ended with exit code 0 [2023-12-16 13:43:26,060 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 [2023-12-16 13:43:26,064 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:43:26,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:43:26,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1809204766, now seen corresponding path program 1 times [2023-12-16 13:43:26,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:43:26,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478600380] [2023-12-16 13:43:26,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:43:26,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:43:26,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:43:26,080 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:43:26,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 13:43:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:43:26,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 13:43:26,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:43:27,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-16 13:43:27,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:43:27,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:43:27,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478600380] [2023-12-16 13:43:27,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478600380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:43:27,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:43:27,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 13:43:27,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373506933] [2023-12-16 13:43:27,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:43:27,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 13:43:27,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:43:27,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 13:43:27,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 13:43:27,745 INFO L87 Difference]: Start difference. First operand 123 states and 193 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-16 13:43:30,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:31,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:43:31,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:43:31,440 INFO L93 Difference]: Finished difference Result 280 states and 441 transitions. [2023-12-16 13:43:31,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 13:43:31,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 165 [2023-12-16 13:43:31,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:43:31,443 INFO L225 Difference]: With dead ends: 280 [2023-12-16 13:43:31,443 INFO L226 Difference]: Without dead ends: 207 [2023-12-16 13:43:31,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 13:43:31,444 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 100 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-16 13:43:31,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 342 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-16 13:43:31,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-16 13:43:31,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 193. [2023-12-16 13:43:31,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 111 states have (on average 1.3423423423423424) internal successors, (149), 111 states have internal predecessors, (149), 78 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-16 13:43:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 305 transitions. [2023-12-16 13:43:31,464 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 305 transitions. Word has length 165 [2023-12-16 13:43:31,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:43:31,464 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 305 transitions. [2023-12-16 13:43:31,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-12-16 13:43:31,464 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 305 transitions. [2023-12-16 13:43:31,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 13:43:31,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:43:31,465 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:43:31,481 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 (5)] Ended with exit code 0 [2023-12-16 13:43:31,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:43:31,679 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:43:31,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:43:31,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1474645280, now seen corresponding path program 1 times [2023-12-16 13:43:31,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:43:31,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823593052] [2023-12-16 13:43:31,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:43:31,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:43:31,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:43:31,681 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) [2023-12-16 13:43:31,683 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 [2023-12-16 13:43:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:43:32,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 54 conjunts are in the unsatisfiable core [2023-12-16 13:43:32,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 13:44:15,906 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 [2023-12-16 13:44:15,944 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:44:16,370 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 13:44:16,382 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 [2023-12-16 13:44:16,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:44:16,577 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 166 with TraceHistMax 26,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-21-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-21-2-2-1 context. [2023-12-16 13:44:16,583 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 13:44:16,596 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 13:44:16,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:44:16 BoogieIcfgContainer [2023-12-16 13:44:16,598 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 13:44:16,599 INFO L158 Benchmark]: Toolchain (without parser) took 78391.53ms. Allocated memory was 262.1MB in the beginning and 314.6MB in the end (delta: 52.4MB). Free memory was 209.0MB in the beginning and 220.0MB in the end (delta: -11.0MB). Peak memory consumption was 175.1MB. Max. memory is 8.0GB. [2023-12-16 13:44:16,599 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 218.1MB. Free memory is still 165.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 13:44:16,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.75ms. Allocated memory is still 262.1MB. Free memory was 208.5MB in the beginning and 192.3MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 13:44:16,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.97ms. Allocated memory is still 262.1MB. Free memory was 191.7MB in the beginning and 189.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 13:44:16,600 INFO L158 Benchmark]: Boogie Preprocessor took 36.13ms. Allocated memory is still 262.1MB. Free memory was 189.1MB in the beginning and 184.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 13:44:16,600 INFO L158 Benchmark]: RCFGBuilder took 3683.26ms. Allocated memory is still 262.1MB. Free memory was 184.9MB in the beginning and 155.0MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-16 13:44:16,600 INFO L158 Benchmark]: TraceAbstraction took 74367.28ms. Allocated memory was 262.1MB in the beginning and 314.6MB in the end (delta: 52.4MB). Free memory was 154.0MB in the beginning and 220.0MB in the end (delta: -66.1MB). Peak memory consumption was 119.5MB. Max. memory is 8.0GB. [2023-12-16 13:44:16,601 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 218.1MB. Free memory is still 165.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 266.75ms. Allocated memory is still 262.1MB. Free memory was 208.5MB in the beginning and 192.3MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.97ms. Allocated memory is still 262.1MB. Free memory was 191.7MB in the beginning and 189.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.13ms. Allocated memory is still 262.1MB. Free memory was 189.1MB in the beginning and 184.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 3683.26ms. Allocated memory is still 262.1MB. Free memory was 184.9MB in the beginning and 155.0MB in the end (delta: 29.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 74367.28ms. Allocated memory was 262.1MB in the beginning and 314.6MB in the end (delta: 52.4MB). Free memory was 154.0MB in the beginning and 220.0MB in the end (delta: -66.1MB). Peak memory consumption was 119.5MB. 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 166 with TraceHistMax 26,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-21-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-21-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.3s, OverallIterations: 5, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 22.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 298 SdHoareTripleChecker+Valid, 21.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 298 mSDsluCounter, 1200 SdHoareTripleChecker+Invalid, 21.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 750 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 450 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 656 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 67 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 655 NumberOfCodeBlocks, 655 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 651 ConstructedInterpolants, 0 QuantifiedInterpolants, 4649 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1137 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 5200/5200 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