/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_operatoramount_amount250_file-44.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 06:56:31,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 06:56:31,207 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 06:56:31,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 06:56:31,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 06:56:31,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 06:56:31,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 06:56:31,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 06:56:31,233 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 06:56:31,235 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 06:56:31,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 06:56:31,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 06:56:31,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 06:56:31,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 06:56:31,237 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 06:56:31,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 06:56:31,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 06:56:31,238 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 06:56:31,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 06:56:31,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 06:56:31,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 06:56:31,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 06:56:31,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 06:56:31,240 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 06:56:31,240 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 06:56:31,240 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 06:56:31,240 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 06:56:31,240 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 06:56:31,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 06:56:31,241 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 06:56:31,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 06:56:31,241 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 06:56:31,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 06:56:31,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 06:56:31,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 06:56:31,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 06:56:31,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 06:56:31,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 06:56:31,242 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 06:56:31,242 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 06:56:31,242 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 06:56:31,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 06:56:31,243 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 06:56:31,243 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 06:56:31,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 06:56:31,243 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 06:56:31,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 06:56:31,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 06:56:31,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 06:56:31,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 06:56:31,443 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 06:56:31,443 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 06:56:31,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-44.i [2023-12-24 06:56:32,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 06:56:32,617 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 06:56:32,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-44.i [2023-12-24 06:56:32,628 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a01c8caf4/698dc199b61545258863a089d3e259bc/FLAG7e31933a8 [2023-12-24 06:56:32,641 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a01c8caf4/698dc199b61545258863a089d3e259bc [2023-12-24 06:56:32,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 06:56:32,644 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 06:56:32,645 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 06:56:32,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 06:56:32,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 06:56:32,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:32,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5666110d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32, skipping insertion in model container [2023-12-24 06:56:32,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:32,689 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 06:56:32,791 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_operatoramount_amount250_file-44.i[916,929] [2023-12-24 06:56:32,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 06:56:32,893 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 06:56:32,900 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_operatoramount_amount250_file-44.i[916,929] [2023-12-24 06:56:32,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 06:56:32,961 INFO L206 MainTranslator]: Completed translation [2023-12-24 06:56:32,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32 WrapperNode [2023-12-24 06:56:32,962 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 06:56:32,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 06:56:32,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 06:56:32,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 06:56:32,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:32,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,009 INFO L138 Inliner]: procedures = 27, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 336 [2023-12-24 06:56:33,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 06:56:33,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 06:56:33,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 06:56:33,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 06:56:33,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,039 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]. [2023-12-24 06:56:33,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 06:56:33,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 06:56:33,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 06:56:33,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 06:56:33,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (1/1) ... [2023-12-24 06:56:33,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 06:56:33,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 06:56:33,085 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) [2023-12-24 06:56:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 06:56:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 06:56:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 06:56:33,117 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 06:56:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 06:56:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 06:56:33,112 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 [2023-12-24 06:56:33,202 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 06:56:33,204 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 06:57:23,515 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 06:57:23,552 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 06:57:23,553 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 06:57:23,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:57:23 BoogieIcfgContainer [2023-12-24 06:57:23,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 06:57:23,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 06:57:23,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 06:57:23,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 06:57:23,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 06:56:32" (1/3) ... [2023-12-24 06:57:23,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b64c180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:57:23, skipping insertion in model container [2023-12-24 06:57:23,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 06:56:32" (2/3) ... [2023-12-24 06:57:23,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b64c180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 06:57:23, skipping insertion in model container [2023-12-24 06:57:23,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 06:57:23" (3/3) ... [2023-12-24 06:57:23,559 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-44.i [2023-12-24 06:57:23,570 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 06:57:23,570 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 06:57:23,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 06:57:23,639 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;@18187743, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 06:57:23,640 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 06:57:23,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 92 states have (on average 1.5434782608695652) internal successors, (142), 93 states have internal predecessors, (142), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-24 06:57:23,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-24 06:57:23,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:57:23,687 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:57:23,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:57:23,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:57:23,691 INFO L85 PathProgramCache]: Analyzing trace with hash 820758622, now seen corresponding path program 1 times [2023-12-24 06:57:23,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:57:23,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856662444] [2023-12-24 06:57:23,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:57:23,702 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 [2023-12-24 06:57:23,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:57:23,719 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) [2023-12-24 06:57:23,727 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 [2023-12-24 06:57:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:57:26,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 06:57:26,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:57:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-24 06:57:36,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:57:36,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:57:36,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856662444] [2023-12-24 06:57:36,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856662444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:57:36,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:57:36,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 06:57:36,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240393236] [2023-12-24 06:57:36,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:57:36,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 06:57:36,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:57:36,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 06:57:36,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 06:57:36,598 INFO L87 Difference]: Start difference. First operand has 139 states, 92 states have (on average 1.5434782608695652) internal successors, (142), 93 states have internal predecessors, (142), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:57:39,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:57:46,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:57:50,259 WARN L539 Checker$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 [] [2023-12-24 06:57:56,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:58:00,873 WARN L539 Checker$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 [] [2023-12-24 06:58:04,877 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 [] [2023-12-24 06:58:04,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:58:04,878 INFO L93 Difference]: Finished difference Result 456 states and 857 transitions. [2023-12-24 06:58:05,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 06:58:05,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 283 [2023-12-24 06:58:05,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:58:05,622 INFO L225 Difference]: With dead ends: 456 [2023-12-24 06:58:05,623 INFO L226 Difference]: Without dead ends: 318 [2023-12-24 06:58:05,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 06:58:05,627 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 304 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 90 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2023-12-24 06:58:05,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 734 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 9 Invalid, 5 Unknown, 0 Unchecked, 28.1s Time] [2023-12-24 06:58:05,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-12-24 06:58:05,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 216. [2023-12-24 06:58:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 125 states have (on average 1.384) internal successors, (173), 125 states have internal predecessors, (173), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-24 06:58:05,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 349 transitions. [2023-12-24 06:58:05,691 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 349 transitions. Word has length 283 [2023-12-24 06:58:05,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:58:05,692 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 349 transitions. [2023-12-24 06:58:05,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:58:05,692 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 349 transitions. [2023-12-24 06:58:05,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-24 06:58:05,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:58:05,696 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:58:05,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-24 06:58:05,912 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 [2023-12-24 06:58:05,913 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:58:05,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:58:05,913 INFO L85 PathProgramCache]: Analyzing trace with hash 37107363, now seen corresponding path program 1 times [2023-12-24 06:58:05,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:58:05,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385377385] [2023-12-24 06:58:05,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:58:05,915 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 [2023-12-24 06:58:05,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:58:05,917 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) [2023-12-24 06:58:05,932 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 [2023-12-24 06:58:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:58:08,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 06:58:08,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:58:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 43 proven. 129 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-24 06:58:20,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 06:58:25,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2023-12-24 06:58:25,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:58:25,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385377385] [2023-12-24 06:58:25,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385377385] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 06:58:25,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 06:58:25,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-24 06:58:25,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135631240] [2023-12-24 06:58:25,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 06:58:25,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 06:58:25,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:58:25,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 06:58:25,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-24 06:58:25,269 INFO L87 Difference]: Start difference. First operand 216 states and 349 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 1 states have call predecessors, (88), 2 states have call successors, (88) [2023-12-24 06:58:36,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:58:40,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:58:46,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:58:50,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:58:54,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:58:55,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:58:55,791 INFO L93 Difference]: Finished difference Result 364 states and 583 transitions. [2023-12-24 06:58:55,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 06:58:55,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 1 states have call predecessors, (88), 2 states have call successors, (88) Word has length 284 [2023-12-24 06:58:55,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:58:55,794 INFO L225 Difference]: With dead ends: 364 [2023-12-24 06:58:55,794 INFO L226 Difference]: Without dead ends: 228 [2023-12-24 06:58:55,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 560 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-24 06:58:55,796 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 103 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2023-12-24 06:58:55,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 410 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 258 Invalid, 5 Unknown, 0 Unchecked, 29.8s Time] [2023-12-24 06:58:55,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-12-24 06:58:55,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 224. [2023-12-24 06:58:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 131 states have (on average 1.3511450381679388) internal successors, (177), 131 states have internal predecessors, (177), 88 states have call successors, (88), 4 states have call predecessors, (88), 4 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-24 06:58:55,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 353 transitions. [2023-12-24 06:58:55,821 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 353 transitions. Word has length 284 [2023-12-24 06:58:55,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:58:55,824 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 353 transitions. [2023-12-24 06:58:55,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 1 states have call predecessors, (88), 2 states have call successors, (88) [2023-12-24 06:58:55,824 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 353 transitions. [2023-12-24 06:58:55,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-24 06:58:55,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:58:55,831 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:58:55,888 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 [2023-12-24 06:58:56,056 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 [2023-12-24 06:58:56,056 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:58:56,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:58:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash -683968169, now seen corresponding path program 1 times [2023-12-24 06:58:56,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:58:56,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360919249] [2023-12-24 06:58:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:58:56,058 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 [2023-12-24 06:58:56,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:58:56,059 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) [2023-12-24 06:58:56,063 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 [2023-12-24 06:58:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:58:58,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 06:58:58,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:59:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-24 06:59:11,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 06:59:11,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 06:59:11,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360919249] [2023-12-24 06:59:11,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360919249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 06:59:11,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 06:59:11,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 06:59:11,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512922318] [2023-12-24 06:59:11,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 06:59:11,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 06:59:11,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 06:59:11,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 06:59:11,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 06:59:11,221 INFO L87 Difference]: Start difference. First operand 224 states and 353 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:59:13,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:59:19,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:59:23,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:59:30,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:59:34,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 06:59:38,130 WARN L539 Checker$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 [] [2023-12-24 06:59:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 06:59:38,131 INFO L93 Difference]: Finished difference Result 422 states and 676 transitions. [2023-12-24 06:59:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 06:59:38,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 285 [2023-12-24 06:59:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 06:59:38,975 INFO L225 Difference]: With dead ends: 422 [2023-12-24 06:59:38,975 INFO L226 Difference]: Without dead ends: 282 [2023-12-24 06:59:38,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 06:59:38,976 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 126 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 89 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2023-12-24 06:59:38,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 650 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 14 Invalid, 5 Unknown, 0 Unchecked, 26.7s Time] [2023-12-24 06:59:38,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-12-24 06:59:39,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 227. [2023-12-24 06:59:39,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 134 states have (on average 1.3507462686567164) internal successors, (181), 134 states have internal predecessors, (181), 88 states have call successors, (88), 4 states have call predecessors, (88), 4 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-24 06:59:39,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 357 transitions. [2023-12-24 06:59:39,002 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 357 transitions. Word has length 285 [2023-12-24 06:59:39,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 06:59:39,003 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 357 transitions. [2023-12-24 06:59:39,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 06:59:39,003 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 357 transitions. [2023-12-24 06:59:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-24 06:59:39,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 06:59:39,006 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 06:59:39,068 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 [2023-12-24 06:59:39,220 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 [2023-12-24 06:59:39,220 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 06:59:39,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 06:59:39,221 INFO L85 PathProgramCache]: Analyzing trace with hash 17631705, now seen corresponding path program 1 times [2023-12-24 06:59:39,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 06:59:39,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362510062] [2023-12-24 06:59:39,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 06:59:39,226 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 [2023-12-24 06:59:39,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 06:59:39,228 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) [2023-12-24 06:59:39,229 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 [2023-12-24 06:59:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 06:59:41,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 06:59:41,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 06:59:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 529 proven. 120 refuted. 0 times theorem prover too weak. 3135 trivial. 0 not checked. [2023-12-24 06:59:54,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 07:00:00,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 9 proven. 120 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2023-12-24 07:00:00,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 07:00:00,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362510062] [2023-12-24 07:00:00,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362510062] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 07:00:00,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 07:00:00,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-24 07:00:00,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496839012] [2023-12-24 07:00:00,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 07:00:00,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 07:00:00,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 07:00:00,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 07:00:00,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-24 07:00:00,527 INFO L87 Difference]: Start difference. First operand 227 states and 357 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (84), 2 states have call predecessors, (84), 4 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2023-12-24 07:00:14,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:00:18,417 WARN L539 Checker$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 [] [2023-12-24 07:00:22,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:00:22,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 07:00:22,478 INFO L93 Difference]: Finished difference Result 382 states and 594 transitions. [2023-12-24 07:00:23,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 07:00:23,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (84), 2 states have call predecessors, (84), 4 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 285 [2023-12-24 07:00:23,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 07:00:23,277 INFO L225 Difference]: With dead ends: 382 [2023-12-24 07:00:23,277 INFO L226 Difference]: Without dead ends: 242 [2023-12-24 07:00:23,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 562 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-24 07:00:23,278 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 191 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2023-12-24 07:00:23,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 409 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 250 Invalid, 3 Unknown, 0 Unchecked, 21.1s Time] [2023-12-24 07:00:23,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-24 07:00:23,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 234. [2023-12-24 07:00:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.3237410071942446) internal successors, (184), 139 states have internal predecessors, (184), 88 states have call successors, (88), 6 states have call predecessors, (88), 6 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-24 07:00:23,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 360 transitions. [2023-12-24 07:00:23,306 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 360 transitions. Word has length 285 [2023-12-24 07:00:23,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 07:00:23,306 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 360 transitions. [2023-12-24 07:00:23,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (84), 2 states have call predecessors, (84), 4 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2023-12-24 07:00:23,306 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 360 transitions. [2023-12-24 07:00:23,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-24 07:00:23,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 07:00:23,309 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 07:00:23,370 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 [2023-12-24 07:00:23,527 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 [2023-12-24 07:00:23,528 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 07:00:23,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 07:00:23,529 INFO L85 PathProgramCache]: Analyzing trace with hash -652172581, now seen corresponding path program 1 times [2023-12-24 07:00:23,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 07:00:23,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561517118] [2023-12-24 07:00:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 07:00:23,529 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 [2023-12-24 07:00:23,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 07:00:23,530 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) [2023-12-24 07:00:23,531 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 [2023-12-24 07:00:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 07:00:26,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 07:00:26,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 07:00:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-24 07:00:40,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 07:00:40,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 07:00:40,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561517118] [2023-12-24 07:00:40,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561517118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 07:00:40,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 07:00:40,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 07:00:40,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299645803] [2023-12-24 07:00:40,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 07:00:40,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 07:00:40,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 07:00:40,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 07:00:40,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 07:00:40,292 INFO L87 Difference]: Start difference. First operand 234 states and 360 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 07:00:44,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:00:51,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:00:57,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:01:01,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:01:02,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 07:01:02,837 INFO L93 Difference]: Finished difference Result 524 states and 815 transitions. [2023-12-24 07:01:02,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 07:01:02,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 285 [2023-12-24 07:01:02,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 07:01:02,842 INFO L225 Difference]: With dead ends: 524 [2023-12-24 07:01:02,842 INFO L226 Difference]: Without dead ends: 381 [2023-12-24 07:01:02,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 07:01:02,850 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 85 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2023-12-24 07:01:02,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 417 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 4 Unknown, 0 Unchecked, 22.5s Time] [2023-12-24 07:01:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-12-24 07:01:02,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 379. [2023-12-24 07:01:02,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 237 states have (on average 1.3628691983122363) internal successors, (323), 237 states have internal predecessors, (323), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-24 07:01:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 587 transitions. [2023-12-24 07:01:02,873 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 587 transitions. Word has length 285 [2023-12-24 07:01:02,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 07:01:02,874 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 587 transitions. [2023-12-24 07:01:02,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-24 07:01:02,874 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 587 transitions. [2023-12-24 07:01:02,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-24 07:01:02,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 07:01:02,875 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 07:01:02,933 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 [2023-12-24 07:01:03,086 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 [2023-12-24 07:01:03,086 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 07:01:03,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 07:01:03,087 INFO L85 PathProgramCache]: Analyzing trace with hash -792721191, now seen corresponding path program 1 times [2023-12-24 07:01:03,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 07:01:03,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553372501] [2023-12-24 07:01:03,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 07:01:03,088 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 [2023-12-24 07:01:03,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 07:01:03,089 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2023-12-24 07:01:03,090 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 (7)] Waiting until timeout for monitored process [2023-12-24 07:01:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 07:01:05,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 07:01:05,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 07:01:18,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 675 proven. 117 refuted. 0 times theorem prover too weak. 2992 trivial. 0 not checked. [2023-12-24 07:01:18,375 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 07:01:24,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 12 proven. 117 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2023-12-24 07:01:24,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 07:01:24,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553372501] [2023-12-24 07:01:24,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553372501] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 07:01:24,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 07:01:24,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-24 07:01:24,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076255699] [2023-12-24 07:01:24,278 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 07:01:24,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 07:01:24,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 07:01:24,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 07:01:24,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-24 07:01:24,279 INFO L87 Difference]: Start difference. First operand 379 states and 587 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2023-12-24 07:01:34,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:01:36,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:01:43,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:01:47,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:01:51,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:01:52,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 07:01:52,827 INFO L93 Difference]: Finished difference Result 686 states and 1054 transitions. [2023-12-24 07:01:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 07:01:52,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 285 [2023-12-24 07:01:52,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 07:01:52,829 INFO L225 Difference]: With dead ends: 686 [2023-12-24 07:01:52,829 INFO L226 Difference]: Without dead ends: 403 [2023-12-24 07:01:52,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 562 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-24 07:01:52,831 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 87 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2023-12-24 07:01:52,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 406 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 3 Unknown, 0 Unchecked, 27.7s Time] [2023-12-24 07:01:52,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-12-24 07:01:52,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 391. [2023-12-24 07:01:52,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 246 states have (on average 1.3252032520325203) internal successors, (326), 246 states have internal predecessors, (326), 132 states have call successors, (132), 12 states have call predecessors, (132), 12 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-24 07:01:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 590 transitions. [2023-12-24 07:01:52,852 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 590 transitions. Word has length 285 [2023-12-24 07:01:52,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 07:01:52,853 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 590 transitions. [2023-12-24 07:01:52,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2023-12-24 07:01:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 590 transitions. [2023-12-24 07:01:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-24 07:01:52,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 07:01:52,855 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 07:01:52,913 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 (7)] Forceful destruction successful, exit code 0 [2023-12-24 07:01:53,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 [2023-12-24 07:01:53,068 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 07:01:53,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 07:01:53,069 INFO L85 PathProgramCache]: Analyzing trace with hash 941256609, now seen corresponding path program 1 times [2023-12-24 07:01:53,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 07:01:53,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189724043] [2023-12-24 07:01:53,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 07:01:53,070 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 [2023-12-24 07:01:53,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 07:01:53,071 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2023-12-24 07:01:53,088 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 (8)] Waiting until timeout for monitored process [2023-12-24 07:01:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 07:01:56,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 07:01:56,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 07:02:55,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 2400 proven. 156 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2023-12-24 07:02:55,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 07:03:13,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 07:03:13,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189724043] [2023-12-24 07:03:13,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189724043] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 07:03:13,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1944472789] [2023-12-24 07:03:13,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 07:03:13,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 07:03:13,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 07:03:13,981 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 07:03:13,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-24 07:03:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 07:03:24,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-24 07:03:24,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 07:05:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 2424 proven. 249 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2023-12-24 07:05:32,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 07:05:38,422 WARN L293 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:05:42,480 WARN L854 $PredicateComparison]: unable to prove that (forall ((~var_1_25~0 (_ FloatingPoint 11 53))) (not (fp.geq ~var_1_25~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.neg c_~var_1_19~0) c_~var_1_18~0))))) is different from false [2023-12-24 07:05:52,705 WARN L293 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:05:59,270 WARN L293 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:06:05,788 WARN L293 SmtUtils]: Spent 6.52s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:06:12,138 WARN L293 SmtUtils]: Spent 6.35s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:06:19,083 WARN L293 SmtUtils]: Spent 6.94s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:06:25,035 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:06:33,178 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:06:37,550 WARN L854 $PredicateComparison]: unable to prove that (or (forall ((~var_1_25~0 (_ FloatingPoint 11 53))) (not (fp.geq ~var_1_25~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.neg c_~var_1_19~0) c_~var_1_18~0))))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_17~0) (fp.neg c_~var_1_34~0))) is different from false [2023-12-24 07:06:41,614 WARN L876 $PredicateComparison]: unable to prove that (or (forall ((~var_1_25~0 (_ FloatingPoint 11 53))) (not (fp.geq ~var_1_25~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.neg c_~var_1_19~0) c_~var_1_18~0))))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_17~0) (fp.neg c_~var_1_34~0))) is different from true [2023-12-24 07:06:53,635 WARN L293 SmtUtils]: Spent 6.77s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:07:09,230 WARN L293 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:07:14,556 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:07:30,302 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_17~0)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_19~0))) (or (and (fp.lt .cse0 .cse1) (fp.lt .cse0 c_~var_1_34~0)) (forall ((~var_1_25~0 (_ FloatingPoint 11 53))) (not (fp.geq ~var_1_25~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode (fp.neg c_~var_1_19~0) c_~var_1_18~0))))) (fp.geq .cse0 (fp.neg c_~var_1_34~0)) (fp.lt c_~var_1_34~0 .cse1))) is different from true [2023-12-24 07:07:40,582 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:07:50,167 WARN L293 SmtUtils]: Spent 7.33s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:07:59,178 WARN L293 SmtUtils]: Spent 6.76s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:08:09,869 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:08:20,349 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:08:30,875 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:08:39,889 WARN L293 SmtUtils]: Spent 7.15s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:08:47,854 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:08:56,360 WARN L293 SmtUtils]: Spent 6.31s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:09:03,846 WARN L293 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:09:14,411 WARN L293 SmtUtils]: Spent 7.90s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:09:23,344 WARN L293 SmtUtils]: Spent 6.77s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:09:31,190 WARN L293 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:09:41,669 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:09:52,482 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:10:02,755 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:10:12,947 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:10:21,519 WARN L293 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 07:10:21,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1944472789] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 07:10:21,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 07:10:21,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 13 [2023-12-24 07:10:21,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76970008] [2023-12-24 07:10:21,981 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 07:10:21,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-24 07:10:21,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 07:10:21,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-24 07:10:21,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=169, Unknown=4, NotChecked=90, Total=342 [2023-12-24 07:10:21,983 INFO L87 Difference]: Start difference. First operand 391 states and 590 transitions. Second operand has 14 states, 14 states have (on average 9.5) internal successors, (133), 13 states have internal predecessors, (133), 5 states have call successors, (77), 5 states have call predecessors, (77), 8 states have return successors, (78), 5 states have call predecessors, (78), 5 states have call successors, (78) [2023-12-24 07:11:06,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:11:10,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 07:11:14,298 WARN L539 Checker$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 [] Received shutdown request... [2023-12-24 07:11:15,059 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 07:11:15,059 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 07:11:15,059 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 [2023-12-24 07:11:16,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-24 07:11:16,133 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 (8)] Forceful destruction successful, exit code 0 [2023-12-24 07:11:16,269 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 [2023-12-24 07:11:16,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 733 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 53.2s TimeCoverageRelationStatistics Valid=152, Invalid=318, Unknown=4, NotChecked=126, Total=600 [2023-12-24 07:11:16,400 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 24 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.9s IncrementalHoareTripleChecker+Time [2023-12-24 07:11:16,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 258 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 593 Invalid, 3 Unknown, 0 Unchecked, 46.9s Time] [2023-12-24 07:11:16,401 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 07:11:16,402 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-24 07:11:16,408 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-24 07:11:16,410 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 07:11:16,411 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 [2023-12-24 07:11:16,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 07:11:16 BoogieIcfgContainer [2023-12-24 07:11:16,412 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 07:11:16,412 INFO L158 Benchmark]: Toolchain (without parser) took 883768.20ms. Allocated memory is still 239.1MB. Free memory was 190.0MB in the beginning and 160.5MB in the end (delta: 29.5MB). Peak memory consumption was 29.2MB. Max. memory is 8.0GB. [2023-12-24 07:11:16,412 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 07:11:16,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.40ms. Allocated memory is still 239.1MB. Free memory was 190.0MB in the beginning and 166.4MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-24 07:11:16,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.45ms. Allocated memory is still 239.1MB. Free memory was 166.4MB in the beginning and 162.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-24 07:11:16,413 INFO L158 Benchmark]: Boogie Preprocessor took 54.29ms. Allocated memory is still 239.1MB. Free memory was 162.2MB in the beginning and 153.3MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-24 07:11:16,413 INFO L158 Benchmark]: RCFGBuilder took 50488.83ms. Allocated memory is still 239.1MB. Free memory was 153.3MB in the beginning and 101.4MB in the end (delta: 51.9MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. [2023-12-24 07:11:16,413 INFO L158 Benchmark]: TraceAbstraction took 832857.30ms. Allocated memory is still 239.1MB. Free memory was 100.4MB in the beginning and 160.5MB in the end (delta: -60.2MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 07:11:16,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 317.40ms. Allocated memory is still 239.1MB. Free memory was 190.0MB in the beginning and 166.4MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.45ms. Allocated memory is still 239.1MB. Free memory was 166.4MB in the beginning and 162.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.29ms. Allocated memory is still 239.1MB. Free memory was 162.2MB in the beginning and 153.3MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 50488.83ms. Allocated memory is still 239.1MB. Free memory was 153.3MB in the beginning and 101.4MB in the end (delta: 51.9MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. * TraceAbstraction took 832857.30ms. Allocated memory is still 239.1MB. Free memory was 100.4MB in the beginning and 160.5MB in the end (delta: -60.2MB). There was no memory consumed. 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 executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 139 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 832.8s, OverallIterations: 7, TraceHistogramMax: 44, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 215.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 mSolverCounterUnknown, 934 SdHoareTripleChecker+Valid, 202.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 920 mSDsluCounter, 3284 SdHoareTripleChecker+Invalid, 196.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2052 mSDsCounter, 217 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1448 IncrementalHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 217 mSolverCounterUnsat, 1232 mSDtfsCounter, 1448 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3322 GetRequests, 3262 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 59.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=391occurred in iteration=6, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 183 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 28.3s SatisfiabilityAnalysisTime, 586.5s InterpolantComputationTime, 2279 NumberOfCodeBlocks, 2279 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3122 ConstructedInterpolants, 0 QuantifiedInterpolants, 19718 SizeOfPredicates, 22 NumberOfNonLiveVariables, 3826 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 40487/41624 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