/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_amount100_file-47.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:30:14,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:30:14,895 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 14:30:14,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:30:14,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:30:14,921 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:30:14,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:30:14,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:30:14,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:30:14,925 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:30:14,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:30:14,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:30:14,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:30:14,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:30:14,926 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:30:14,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:30:14,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:30:14,927 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:30:14,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:30:14,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:30:14,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:30:14,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:30:14,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:30:14,929 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:30:14,929 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:30:14,929 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:30:14,929 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:30:14,930 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:30:14,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:30:14,930 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:30:14,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:30:14,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:30:14,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:30:14,931 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:30:14,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:30:14,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:30:14,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:30:14,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:30:14,932 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:30:14,932 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:30:14,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:30:14,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:30:14,933 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:30:14,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:30:14,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:30:14,933 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:30:14,933 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:30:15,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:30:15,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:30:15,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:30:15,138 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:30:15,142 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:30:15,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-47.i [2023-12-16 14:30:16,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:30:16,387 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:30:16,388 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-47.i [2023-12-16 14:30:16,396 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cff33f08/7d1d5820dc704e10abb7bf272ea3357c/FLAGcd6ed33a0 [2023-12-16 14:30:16,407 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cff33f08/7d1d5820dc704e10abb7bf272ea3357c [2023-12-16 14:30:16,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:30:16,410 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:30:16,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:30:16,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:30:16,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:30:16,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8179c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16, skipping insertion in model container [2023-12-16 14:30:16,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:30:16,552 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_amount100_file-47.i[916,929] [2023-12-16 14:30:16,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:30:16,645 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:30:16,653 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_amount100_file-47.i[916,929] [2023-12-16 14:30:16,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:30:16,719 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:30:16,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16 WrapperNode [2023-12-16 14:30:16,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:30:16,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:30:16,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:30:16,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:30:16,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,749 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,777 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 228 [2023-12-16 14:30:16,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:30:16,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:30:16,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:30:16,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:30:16,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,807 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 14:30:16,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,828 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:30:16,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:30:16,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:30:16,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:30:16,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (1/1) ... [2023-12-16 14:30:16,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:30:16,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:30:16,854 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 14:30:16,858 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 14:30:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:30:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:30:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:30:16,875 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:30:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:30:16,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:30:16,951 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:30:16,953 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:30:17,285 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:30:17,337 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:30:17,338 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:30:17,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:30:17 BoogieIcfgContainer [2023-12-16 14:30:17,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:30:17,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:30:17,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:30:17,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:30:17,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:30:16" (1/3) ... [2023-12-16 14:30:17,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3e6eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:30:17, skipping insertion in model container [2023-12-16 14:30:17,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:30:16" (2/3) ... [2023-12-16 14:30:17,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3e6eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:30:17, skipping insertion in model container [2023-12-16 14:30:17,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:30:17" (3/3) ... [2023-12-16 14:30:17,343 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-47.i [2023-12-16 14:30:17,354 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:30:17,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:30:17,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:30:17,390 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;@4c2ce994, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:30:17,390 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:30:17,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 56 states have (on average 1.5) internal successors, (84), 57 states have internal predecessors, (84), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 14:30:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-16 14:30:17,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:30:17,408 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:17,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:30:17,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:30:17,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1296462496, now seen corresponding path program 1 times [2023-12-16 14:30:17,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:30:17,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869110908] [2023-12-16 14:30:17,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:30:17,426 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 14:30:17,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:30:17,429 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 14:30:17,458 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 14:30:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:30:17,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:30:17,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:30:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 944 proven. 0 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2023-12-16 14:30:17,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:30:17,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:30:17,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869110908] [2023-12-16 14:30:17,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869110908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:30:17,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:30:17,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:30:17,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87120434] [2023-12-16 14:30:17,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:30:17,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:30:17,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:30:17,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:30:17,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:30:17,747 INFO L87 Difference]: Start difference. First operand has 92 states, 56 states have (on average 1.5) internal successors, (84), 57 states have internal predecessors, (84), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-16 14:30:17,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:30:17,822 INFO L93 Difference]: Finished difference Result 181 states and 331 transitions. [2023-12-16 14:30:17,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:30:17,829 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 204 [2023-12-16 14:30:17,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:30:17,836 INFO L225 Difference]: With dead ends: 181 [2023-12-16 14:30:17,837 INFO L226 Difference]: Without dead ends: 90 [2023-12-16 14:30:17,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:30:17,846 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 14:30:17,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 14:30:17,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-16 14:30:17,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-12-16 14:30:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 55 states have internal predecessors, (79), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 14:30:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 145 transitions. [2023-12-16 14:30:17,881 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 145 transitions. Word has length 204 [2023-12-16 14:30:17,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:30:17,881 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 145 transitions. [2023-12-16 14:30:17,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-16 14:30:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 145 transitions. [2023-12-16 14:30:17,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-16 14:30:17,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:30:17,904 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:17,917 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 14:30:18,114 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 14:30:18,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:30:18,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:30:18,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1990112358, now seen corresponding path program 1 times [2023-12-16 14:30:18,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:30:18,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558200638] [2023-12-16 14:30:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:30:18,117 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 14:30:18,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:30:18,119 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 14:30:18,148 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 14:30:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:30:18,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 14:30:18,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:30:18,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 1223 proven. 48 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2023-12-16 14:30:18,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:30:18,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 138 proven. 51 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2023-12-16 14:30:18,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:30:18,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558200638] [2023-12-16 14:30:18,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558200638] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:30:18,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:30:18,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-12-16 14:30:18,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399744063] [2023-12-16 14:30:18,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:30:18,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 14:30:18,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:30:18,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 14:30:18,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2023-12-16 14:30:18,937 INFO L87 Difference]: Start difference. First operand 90 states and 145 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 3 states have call successors, (48), 3 states have call predecessors, (48), 7 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2023-12-16 14:30:19,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:30:19,619 INFO L93 Difference]: Finished difference Result 194 states and 300 transitions. [2023-12-16 14:30:19,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 14:30:19,624 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 3 states have call successors, (48), 3 states have call predecessors, (48), 7 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 204 [2023-12-16 14:30:19,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:30:19,626 INFO L225 Difference]: With dead ends: 194 [2023-12-16 14:30:19,626 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 14:30:19,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 392 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=488, Unknown=0, NotChecked=0, Total=702 [2023-12-16 14:30:19,628 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 260 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 14:30:19,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 386 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 14:30:19,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 14:30:19,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 101. [2023-12-16 14:30:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 14:30:19,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2023-12-16 14:30:19,649 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 204 [2023-12-16 14:30:19,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:30:19,650 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2023-12-16 14:30:19,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 3 states have call successors, (48), 3 states have call predecessors, (48), 7 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2023-12-16 14:30:19,651 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2023-12-16 14:30:19,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-16 14:30:19,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:30:19,666 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:19,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 14:30:19,880 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 14:30:19,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:30:19,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:30:19,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1574309993, now seen corresponding path program 1 times [2023-12-16 14:30:19,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:30:19,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286261716] [2023-12-16 14:30:19,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:30:19,882 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 14:30:19,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:30:19,884 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 14:30:19,909 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 14:30:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:30:20,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 14:30:20,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:30:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2023-12-16 14:30:20,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:30:20,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:30:20,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286261716] [2023-12-16 14:30:20,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286261716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:30:20,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:30:20,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 14:30:20,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25690114] [2023-12-16 14:30:20,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:30:20,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 14:30:20,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:30:20,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 14:30:20,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 14:30:20,072 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-16 14:30:20,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:30:20,117 INFO L93 Difference]: Finished difference Result 201 states and 293 transitions. [2023-12-16 14:30:20,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 14:30:20,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2023-12-16 14:30:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:30:20,124 INFO L225 Difference]: With dead ends: 201 [2023-12-16 14:30:20,124 INFO L226 Difference]: Without dead ends: 101 [2023-12-16 14:30:20,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 14:30:20,126 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 31 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 14:30:20,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 234 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 14:30:20,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-16 14:30:20,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-12-16 14:30:20,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 63 states have internal predecessors, (80), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 14:30:20,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2023-12-16 14:30:20,136 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 205 [2023-12-16 14:30:20,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:30:20,137 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2023-12-16 14:30:20,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-16 14:30:20,137 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2023-12-16 14:30:20,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-16 14:30:20,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:30:20,139 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:20,160 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 14:30:20,347 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 14:30:20,347 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:30:20,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:30:20,348 INFO L85 PathProgramCache]: Analyzing trace with hash 9503973, now seen corresponding path program 1 times [2023-12-16 14:30:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:30:20,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811561016] [2023-12-16 14:30:20,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:30:20,349 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 14:30:20,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:30:20,350 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 14:30:20,357 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 14:30:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:30:20,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 14:30:20,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:30:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 1060 proven. 198 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-12-16 14:30:21,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:30:21,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:30:21,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811561016] [2023-12-16 14:30:21,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811561016] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 14:30:21,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2099075666] [2023-12-16 14:30:21,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:30:21,443 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 14:30:21,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 14:30:21,481 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 14:30:21,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 14:30:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:30:22,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 14:30:22,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:30:23,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 1060 proven. 198 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-12-16 14:30:23,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:30:23,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2099075666] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 14:30:23,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:30:23,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2023-12-16 14:30:23,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837912625] [2023-12-16 14:30:23,101 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:30:23,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 14:30:23,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:30:23,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 14:30:23,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-12-16 14:30:23,102 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 14:30:27,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:30:27,103 INFO L93 Difference]: Finished difference Result 333 states and 462 transitions. [2023-12-16 14:30:27,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 14:30:27,104 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 206 [2023-12-16 14:30:27,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:30:27,107 INFO L225 Difference]: With dead ends: 333 [2023-12-16 14:30:27,107 INFO L226 Difference]: Without dead ends: 233 [2023-12-16 14:30:27,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 14:30:27,109 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 392 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 14:30:27,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 535 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 14:30:27,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-12-16 14:30:27,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 223. [2023-12-16 14:30:27,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 142 states have (on average 1.232394366197183) internal successors, (175), 142 states have internal predecessors, (175), 66 states have call successors, (66), 14 states have call predecessors, (66), 14 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 14:30:27,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 307 transitions. [2023-12-16 14:30:27,144 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 307 transitions. Word has length 206 [2023-12-16 14:30:27,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:30:27,145 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 307 transitions. [2023-12-16 14:30:27,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 12 states have internal predecessors, (59), 4 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 14:30:27,145 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 307 transitions. [2023-12-16 14:30:27,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-16 14:30:27,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:30:27,146 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:30:27,154 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 14:30:27,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-16 14:30:27,547 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 14:30:27,547 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:30:27,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:30:27,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1011564381, now seen corresponding path program 1 times [2023-12-16 14:30:27,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:30:27,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664026316] [2023-12-16 14:30:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:30:27,549 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 14:30:27,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:30:27,559 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) [2023-12-16 14:30:27,560 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 [2023-12-16 14:30:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:30:27,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-16 14:30:27,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 14:31:29,585 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 14:31:29,595 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 [2023-12-16 14:31:29,603 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 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:31:29,603 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 14:31:29,785 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 [2023-12-16 14:31:29,786 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 207 with TraceHistMax 33,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-3-3-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-28-3-2-2-3-2-2-3-2-2-1 context. [2023-12-16 14:31:29,790 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 14:31:29,791 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 14:31:29,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:31:29 BoogieIcfgContainer [2023-12-16 14:31:29,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 14:31:29,794 INFO L158 Benchmark]: Toolchain (without parser) took 73382.81ms. Allocated memory was 298.8MB in the beginning and 358.6MB in the end (delta: 59.8MB). Free memory was 246.3MB in the beginning and 147.6MB in the end (delta: 98.7MB). Peak memory consumption was 204.6MB. Max. memory is 8.0GB. [2023-12-16 14:31:29,794 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 213.9MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 14:31:29,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.38ms. Allocated memory is still 298.8MB. Free memory was 246.3MB in the beginning and 227.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 14:31:29,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.12ms. Allocated memory is still 298.8MB. Free memory was 227.9MB in the beginning and 224.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 14:31:29,795 INFO L158 Benchmark]: Boogie Preprocessor took 50.93ms. Allocated memory is still 298.8MB. Free memory was 224.8MB in the beginning and 220.0MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 14:31:29,795 INFO L158 Benchmark]: RCFGBuilder took 507.01ms. Allocated memory is still 298.8MB. Free memory was 220.0MB in the beginning and 188.1MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-16 14:31:29,796 INFO L158 Benchmark]: TraceAbstraction took 72453.14ms. Allocated memory was 298.8MB in the beginning and 358.6MB in the end (delta: 59.8MB). Free memory was 187.5MB in the beginning and 147.6MB in the end (delta: 40.0MB). Peak memory consumption was 145.9MB. Max. memory is 8.0GB. [2023-12-16 14:31:29,797 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 213.9MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 307.38ms. Allocated memory is still 298.8MB. Free memory was 246.3MB in the beginning and 227.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.12ms. Allocated memory is still 298.8MB. Free memory was 227.9MB in the beginning and 224.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.93ms. Allocated memory is still 298.8MB. Free memory was 224.8MB in the beginning and 220.0MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 507.01ms. Allocated memory is still 298.8MB. Free memory was 220.0MB in the beginning and 188.1MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 72453.14ms. Allocated memory was 298.8MB in the beginning and 358.6MB in the end (delta: 59.8MB). Free memory was 187.5MB in the beginning and 147.6MB in the end (delta: 40.0MB). Peak memory consumption was 145.9MB. 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 207 with TraceHistMax 33,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-3-3-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-28-3-2-2-3-2-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.4s, OverallIterations: 5, TraceHistogramMax: 33, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 689 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 683 mSDsluCounter, 1297 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 779 mSDsCounter, 296 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1125 IncrementalHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 296 mSolverCounterUnsat, 518 mSDtfsCounter, 1125 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1303 GetRequests, 1243 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=4, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1025 NumberOfCodeBlocks, 1025 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1223 ConstructedInterpolants, 10 QuantifiedInterpolants, 4904 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1730 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 12177/12672 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