/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_fillercode_fillercodestructure_normal_file-99.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 13:12:05,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 13:12:05,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 13:12:05,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 13:12:05,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 13:12:05,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 13:12:05,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 13:12:05,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 13:12:05,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 13:12:05,207 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 13:12:05,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 13:12:05,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 13:12:05,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 13:12:05,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 13:12:05,209 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 13:12:05,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 13:12:05,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 13:12:05,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 13:12:05,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 13:12:05,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 13:12:05,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 13:12:05,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 13:12:05,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 13:12:05,211 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 13:12:05,211 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 13:12:05,211 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 13:12:05,211 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 13:12:05,211 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 13:12:05,211 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 13:12:05,212 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 13:12:05,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 13:12:05,212 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 13:12:05,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 13:12:05,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 13:12:05,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:12:05,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 13:12:05,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 13:12:05,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 13:12:05,213 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 13:12:05,213 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 13:12:05,213 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 13:12:05,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 13:12:05,214 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 13:12:05,214 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 13:12:05,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 13:12:05,215 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 13:12:05,215 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 13:12:05,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 13:12:05,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 13:12:05,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 13:12:05,431 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 13:12:05,431 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 13:12:05,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-99.i [2023-12-16 13:12:06,486 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 13:12:06,674 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 13:12:06,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-99.i [2023-12-16 13:12:06,681 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56dfef19e/1c67b97f91634eacaf0d5abf0a032f34/FLAG7d9b6f1ef [2023-12-16 13:12:06,695 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56dfef19e/1c67b97f91634eacaf0d5abf0a032f34 [2023-12-16 13:12:06,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 13:12:06,698 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 13:12:06,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 13:12:06,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 13:12:06,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 13:12:06,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:06,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee89cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06, skipping insertion in model container [2023-12-16 13:12:06,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:06,733 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 13:12:06,842 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_fillercode_fillercodestructure_normal_file-99.i[913,926] [2023-12-16 13:12:06,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:12:06,903 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 13:12:06,934 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_fillercode_fillercodestructure_normal_file-99.i[913,926] [2023-12-16 13:12:06,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:12:06,988 INFO L206 MainTranslator]: Completed translation [2023-12-16 13:12:06,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06 WrapperNode [2023-12-16 13:12:06,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 13:12:06,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 13:12:06,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 13:12:06,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 13:12:06,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,049 INFO L138 Inliner]: procedures = 27, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 160 [2023-12-16 13:12:07,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 13:12:07,050 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 13:12:07,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 13:12:07,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 13:12:07,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,091 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 13:12:07,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 13:12:07,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 13:12:07,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 13:12:07,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 13:12:07,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (1/1) ... [2023-12-16 13:12:07,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:12:07,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 13:12:07,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 13:12:07,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 13:12:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 13:12:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 13:12:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 13:12:07,178 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 13:12:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 13:12:07,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 13:12:07,258 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 13:12:07,261 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 13:12:09,574 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 13:12:09,613 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 13:12:09,613 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 13:12:09,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:12:09 BoogieIcfgContainer [2023-12-16 13:12:09,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 13:12:09,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 13:12:09,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 13:12:09,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 13:12:09,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:12:06" (1/3) ... [2023-12-16 13:12:09,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383b6d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:12:09, skipping insertion in model container [2023-12-16 13:12:09,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:12:06" (2/3) ... [2023-12-16 13:12:09,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383b6d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:12:09, skipping insertion in model container [2023-12-16 13:12:09,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:12:09" (3/3) ... [2023-12-16 13:12:09,619 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-99.i [2023-12-16 13:12:09,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 13:12:09,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 13:12:09,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 13:12:09,676 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;@25e38e6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 13:12:09,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 13:12:09,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 13:12:09,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-16 13:12:09,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:12:09,693 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:12:09,693 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:12:09,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:12:09,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1726848860, now seen corresponding path program 1 times [2023-12-16 13:12:09,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:12:09,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702564647] [2023-12-16 13:12:09,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:12:09,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:12:09,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:12:09,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:12:09,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 13:12:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:12:10,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 13:12:10,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:12:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 455 proven. 141 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2023-12-16 13:12:11,184 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:12:11,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 21 proven. 144 refuted. 0 times theorem prover too weak. 1459 trivial. 0 not checked. [2023-12-16 13:12:11,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:12:11,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702564647] [2023-12-16 13:12:11,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702564647] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 13:12:11,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 13:12:11,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-16 13:12:11,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299130484] [2023-12-16 13:12:11,742 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 13:12:11,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 13:12:11,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:12:11,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 13:12:11,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-16 13:12:11,773 INFO L87 Difference]: Start difference. First operand has 71 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2023-12-16 13:12:14,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:12:14,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:12:14,764 INFO L93 Difference]: Finished difference Result 233 states and 417 transitions. [2023-12-16 13:12:14,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 13:12:14,766 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 176 [2023-12-16 13:12:14,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:12:14,774 INFO L225 Difference]: With dead ends: 233 [2023-12-16 13:12:14,774 INFO L226 Difference]: Without dead ends: 163 [2023-12-16 13:12:14,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 340 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=315, Invalid=741, Unknown=0, NotChecked=0, Total=1056 [2023-12-16 13:12:14,779 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 115 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 13:12:14,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 279 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 13:12:14,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-16 13:12:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 79. [2023-12-16 13:12:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 46 states have internal predecessors, (55), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 13:12:14,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 113 transitions. [2023-12-16 13:12:14,834 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 113 transitions. Word has length 176 [2023-12-16 13:12:14,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:12:14,835 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 113 transitions. [2023-12-16 13:12:14,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2023-12-16 13:12:14,835 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 113 transitions. [2023-12-16 13:12:14,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-16 13:12:14,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:12:14,839 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:12:14,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 13:12:15,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:12:15,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:12:15,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:12:15,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2119875870, now seen corresponding path program 1 times [2023-12-16 13:12:15,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:12:15,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289295813] [2023-12-16 13:12:15,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:12:15,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:12:15,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:12:15,056 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:12:15,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 13:12:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:12:15,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 13:12:15,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:12:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 27 proven. 760 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2023-12-16 13:12:16,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:12:16,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 27 proven. 57 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-16 13:12:16,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:12:16,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289295813] [2023-12-16 13:12:16,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289295813] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 13:12:16,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 13:12:16,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-16 13:12:16,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207302079] [2023-12-16 13:12:16,826 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 13:12:16,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 13:12:16,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:12:16,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 13:12:16,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-12-16 13:12:16,829 INFO L87 Difference]: Start difference. First operand 79 states and 113 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (58), 3 states have call predecessors, (58), 5 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) [2023-12-16 13:12:20,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:12:21,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:12:21,116 INFO L93 Difference]: Finished difference Result 209 states and 284 transitions. [2023-12-16 13:12:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 13:12:21,117 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (58), 3 states have call predecessors, (58), 5 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) Word has length 176 [2023-12-16 13:12:21,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:12:21,120 INFO L225 Difference]: With dead ends: 209 [2023-12-16 13:12:21,121 INFO L226 Difference]: Without dead ends: 131 [2023-12-16 13:12:21,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=242, Unknown=0, NotChecked=0, Total=380 [2023-12-16 13:12:21,122 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 157 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-16 13:12:21,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 193 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-16 13:12:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-16 13:12:21,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 116. [2023-12-16 13:12:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 70 states have (on average 1.1571428571428573) internal successors, (81), 71 states have internal predecessors, (81), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 13:12:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 157 transitions. [2023-12-16 13:12:21,136 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 157 transitions. Word has length 176 [2023-12-16 13:12:21,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:12:21,137 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 157 transitions. [2023-12-16 13:12:21,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (58), 3 states have call predecessors, (58), 5 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) [2023-12-16 13:12:21,137 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 157 transitions. [2023-12-16 13:12:21,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-16 13:12:21,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:12:21,139 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:12:21,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 13:12:21,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:12:21,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:12:21,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:12:21,361 INFO L85 PathProgramCache]: Analyzing trace with hash 363301400, now seen corresponding path program 1 times [2023-12-16 13:12:21,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:12:21,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290004800] [2023-12-16 13:12:21,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:12:21,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:12:21,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:12:21,363 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:12:21,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 13:12:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:12:21,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 13:12:21,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:12:21,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-12-16 13:12:21,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:12:21,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:12:21,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290004800] [2023-12-16 13:12:21,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290004800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:12:21,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:12:21,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 13:12:21,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853614954] [2023-12-16 13:12:21,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:12:21,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 13:12:21,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:12:21,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 13:12:21,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 13:12:21,984 INFO L87 Difference]: Start difference. First operand 116 states and 157 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-16 13:12:23,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 13:12:23,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:12:23,835 INFO L93 Difference]: Finished difference Result 346 states and 469 transitions. [2023-12-16 13:12:23,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 13:12:23,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 177 [2023-12-16 13:12:23,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:12:23,841 INFO L225 Difference]: With dead ends: 346 [2023-12-16 13:12:23,841 INFO L226 Difference]: Without dead ends: 231 [2023-12-16 13:12:23,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 13:12:23,843 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 21 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 13:12:23,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 283 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 13:12:23,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-12-16 13:12:23,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2023-12-16 13:12:23,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 138 states have (on average 1.1521739130434783) internal successors, (159), 140 states have internal predecessors, (159), 76 states have call successors, (76), 14 states have call predecessors, (76), 14 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-16 13:12:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 311 transitions. [2023-12-16 13:12:23,900 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 311 transitions. Word has length 177 [2023-12-16 13:12:23,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:12:23,900 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 311 transitions. [2023-12-16 13:12:23,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-16 13:12:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 311 transitions. [2023-12-16 13:12:23,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-16 13:12:23,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:12:23,903 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:12:23,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 13:12:24,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:12:24,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:12:24,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:12:24,115 INFO L85 PathProgramCache]: Analyzing trace with hash 420559702, now seen corresponding path program 1 times [2023-12-16 13:12:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:12:24,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841953034] [2023-12-16 13:12:24,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:12:24,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:12:24,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:12:24,133 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:12:24,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 13:12:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:12:24,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-16 13:12:24,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 13:13:23,345 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:13:23,345 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:13:24,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 13:13:24,546 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 [2023-12-16 13:13:24,567 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 [2023-12-16 13:13:24,569 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 13:13:24,570 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 178 with TraceHistMax 29,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 13:13:24,573 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 13:13:24,575 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 13:13:24,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:13:24 BoogieIcfgContainer [2023-12-16 13:13:24,576 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 13:13:24,577 INFO L158 Benchmark]: Toolchain (without parser) took 77879.03ms. Allocated memory is still 294.6MB. Free memory was 251.9MB in the beginning and 199.5MB in the end (delta: 52.4MB). Peak memory consumption was 161.0MB. Max. memory is 8.0GB. [2023-12-16 13:13:24,577 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 188.7MB. Free memory was 136.9MB in the beginning and 136.9MB in the end (delta: 87.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 13:13:24,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.65ms. Allocated memory is still 294.6MB. Free memory was 251.4MB in the beginning and 236.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 13:13:24,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.80ms. Allocated memory is still 294.6MB. Free memory was 236.8MB in the beginning and 234.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 13:13:24,578 INFO L158 Benchmark]: Boogie Preprocessor took 62.10ms. Allocated memory is still 294.6MB. Free memory was 234.1MB in the beginning and 230.5MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 13:13:24,578 INFO L158 Benchmark]: RCFGBuilder took 2501.21ms. Allocated memory is still 294.6MB. Free memory was 230.5MB in the beginning and 207.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 13:13:24,578 INFO L158 Benchmark]: TraceAbstraction took 74961.60ms. Allocated memory is still 294.6MB. Free memory was 206.4MB in the beginning and 199.5MB in the end (delta: 6.8MB). Peak memory consumption was 115.9MB. Max. memory is 8.0GB. [2023-12-16 13:13:24,579 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 188.7MB. Free memory was 136.9MB in the beginning and 136.9MB in the end (delta: 87.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 290.65ms. Allocated memory is still 294.6MB. Free memory was 251.4MB in the beginning and 236.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.80ms. Allocated memory is still 294.6MB. Free memory was 236.8MB in the beginning and 234.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.10ms. Allocated memory is still 294.6MB. Free memory was 234.1MB in the beginning and 230.5MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 2501.21ms. Allocated memory is still 294.6MB. Free memory was 230.5MB in the beginning and 207.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 74961.60ms. Allocated memory is still 294.6MB. Free memory was 206.4MB in the beginning and 199.5MB in the end (delta: 6.8MB). Peak memory consumption was 115.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 178 with TraceHistMax 29,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.9s, OverallIterations: 4, TraceHistogramMax: 29, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 298 SdHoareTripleChecker+Valid, 8.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 293 mSDsluCounter, 755 SdHoareTripleChecker+Invalid, 8.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 469 mSDsCounter, 200 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 707 IncrementalHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 200 mSolverCounterUnsat, 286 mSDtfsCounter, 707 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 910 GetRequests, 857 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=3, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 101 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 529 NumberOfCodeBlocks, 529 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 876 ConstructedInterpolants, 0 QuantifiedInterpolants, 4539 SizeOfPredicates, 13 NumberOfNonLiveVariables, 845 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 7018/8120 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