/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_amount50_file-78.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 15:14:22,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 15:14:22,253 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 15:14:22,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 15:14:22,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 15:14:22,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 15:14:22,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 15:14:22,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 15:14:22,282 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 15:14:22,284 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 15:14:22,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 15:14:22,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 15:14:22,286 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 15:14:22,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 15:14:22,287 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 15:14:22,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 15:14:22,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 15:14:22,287 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 15:14:22,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 15:14:22,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 15:14:22,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 15:14:22,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 15:14:22,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 15:14:22,288 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 15:14:22,288 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 15:14:22,289 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 15:14:22,289 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 15:14:22,289 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 15:14:22,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 15:14:22,289 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 15:14:22,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 15:14:22,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 15:14:22,290 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 15:14:22,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 15:14:22,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:14:22,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 15:14:22,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 15:14:22,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 15:14:22,291 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 15:14:22,291 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 15:14:22,291 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 15:14:22,291 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 15:14:22,291 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 15:14:22,291 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 15:14:22,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 15:14:22,292 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 15:14:22,292 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 15:14:22,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 15:14:22,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 15:14:22,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 15:14:22,502 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 15:14:22,502 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 15:14:22,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-78.i [2023-12-16 15:14:23,438 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 15:14:23,601 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 15:14:23,602 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-78.i [2023-12-16 15:14:23,614 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/064f7bb09/5939243ddcbf4bba9a26843714096e79/FLAG936471f4c [2023-12-16 15:14:23,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/064f7bb09/5939243ddcbf4bba9a26843714096e79 [2023-12-16 15:14:23,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 15:14:23,631 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 15:14:23,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 15:14:23,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 15:14:23,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 15:14:23,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dedead7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23, skipping insertion in model container [2023-12-16 15:14:23,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,659 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 15:14:23,750 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_amount50_file-78.i[915,928] [2023-12-16 15:14:23,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:14:23,798 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 15:14:23,806 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_amount50_file-78.i[915,928] [2023-12-16 15:14:23,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:14:23,845 INFO L206 MainTranslator]: Completed translation [2023-12-16 15:14:23,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23 WrapperNode [2023-12-16 15:14:23,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 15:14:23,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 15:14:23,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 15:14:23,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 15:14:23,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,879 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2023-12-16 15:14:23,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 15:14:23,880 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 15:14:23,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 15:14:23,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 15:14:23,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,894 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,909 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 15:14:23,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 15:14:23,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 15:14:23,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 15:14:23,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 15:14:23,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (1/1) ... [2023-12-16 15:14:23,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:14:23,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 15:14:23,965 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 15:14:23,989 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 15:14:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 15:14:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 15:14:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 15:14:24,002 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 15:14:24,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 15:14:24,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 15:14:24,114 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 15:14:24,115 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 15:14:30,139 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 15:14:30,165 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 15:14:30,166 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 15:14:30,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:14:30 BoogieIcfgContainer [2023-12-16 15:14:30,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 15:14:30,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 15:14:30,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 15:14:30,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 15:14:30,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:14:23" (1/3) ... [2023-12-16 15:14:30,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f03fbd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:14:30, skipping insertion in model container [2023-12-16 15:14:30,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:23" (2/3) ... [2023-12-16 15:14:30,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f03fbd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:14:30, skipping insertion in model container [2023-12-16 15:14:30,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:14:30" (3/3) ... [2023-12-16 15:14:30,171 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-78.i [2023-12-16 15:14:30,182 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 15:14:30,182 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 15:14:30,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 15:14:30,215 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;@58d3987e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 15:14:30,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 15:14:30,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 15:14:30,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-16 15:14:30,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:14:30,235 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:14:30,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:14:30,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:14:30,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1005384884, now seen corresponding path program 1 times [2023-12-16 15:14:30,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:14:30,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654601897] [2023-12-16 15:14:30,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:14:30,249 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 15:14:30,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:14:30,250 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 15:14:30,253 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 15:14:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:14:30,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 15:14:30,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:14:30,645 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-12-16 15:14:30,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:14:30,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:14:30,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654601897] [2023-12-16 15:14:30,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654601897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:14:30,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:14:30,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 15:14:30,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457546680] [2023-12-16 15:14:30,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:14:30,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 15:14:30,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:14:30,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 15:14:30,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:14:30,683 INFO L87 Difference]: Start difference. First operand has 51 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 15:14:33,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:14:33,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:14:33,823 INFO L93 Difference]: Finished difference Result 99 states and 172 transitions. [2023-12-16 15:14:33,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 15:14:33,867 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2023-12-16 15:14:33,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:14:33,872 INFO L225 Difference]: With dead ends: 99 [2023-12-16 15:14:33,872 INFO L226 Difference]: Without dead ends: 49 [2023-12-16 15:14:33,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 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 15:14:33,876 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:14:33,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 15:14:33,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-16 15:14:33,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-16 15:14:33,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 15:14:33,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 73 transitions. [2023-12-16 15:14:33,902 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 73 transitions. Word has length 113 [2023-12-16 15:14:33,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:14:33,903 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 73 transitions. [2023-12-16 15:14:33,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 15:14:33,903 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2023-12-16 15:14:33,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-16 15:14:33,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:14:33,906 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:14:33,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 15:14:34,111 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 15:14:34,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:14:34,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:14:34,112 INFO L85 PathProgramCache]: Analyzing trace with hash -640921920, now seen corresponding path program 1 times [2023-12-16 15:14:34,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:14:34,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370827558] [2023-12-16 15:14:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:14:34,113 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 15:14:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:14:34,114 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 15:14:34,115 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 15:14:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:14:34,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 15:14:34,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:14:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 15:14:34,516 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:14:34,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:14:34,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370827558] [2023-12-16 15:14:34,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370827558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:14:34,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:14:34,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 15:14:34,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871504286] [2023-12-16 15:14:34,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:14:34,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 15:14:34,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:14:34,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 15:14:34,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 15:14:34,520 INFO L87 Difference]: Start difference. First operand 49 states and 73 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:14:38,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 15:14:41,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 15:14:41,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:14:41,075 INFO L93 Difference]: Finished difference Result 97 states and 145 transitions. [2023-12-16 15:14:41,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 15:14:41,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2023-12-16 15:14:41,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:14:41,115 INFO L225 Difference]: With dead ends: 97 [2023-12-16 15:14:41,115 INFO L226 Difference]: Without dead ends: 49 [2023-12-16 15:14:41,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 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 15:14:41,116 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 15 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-16 15:14:41,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 121 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2023-12-16 15:14:41,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-16 15:14:41,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-16 15:14:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 15:14:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2023-12-16 15:14:41,124 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 113 [2023-12-16 15:14:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:14:41,125 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2023-12-16 15:14:41,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:14:41,125 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2023-12-16 15:14:41,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 15:14:41,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:14:41,128 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:14:41,145 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 15:14:41,343 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 15:14:41,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:14:41,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:14:41,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1487703475, now seen corresponding path program 1 times [2023-12-16 15:14:41,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:14:41,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536599396] [2023-12-16 15:14:41,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:14:41,345 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 15:14:41,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:14:41,346 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 15:14:41,355 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 15:14:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:14:41,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 15:14:41,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:14:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 15:14:42,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:14:42,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:14:42,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536599396] [2023-12-16 15:14:42,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536599396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:14:42,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:14:42,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 15:14:42,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009884390] [2023-12-16 15:14:42,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:14:42,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:14:42,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:14:42,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:14:42,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:14:42,956 INFO L87 Difference]: Start difference. First operand 49 states and 72 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:14:47,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:14:50,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:14:50,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:14:50,897 INFO L93 Difference]: Finished difference Result 158 states and 232 transitions. [2023-12-16 15:14:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 15:14:50,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2023-12-16 15:14:50,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:14:50,942 INFO L225 Difference]: With dead ends: 158 [2023-12-16 15:14:50,943 INFO L226 Difference]: Without dead ends: 110 [2023-12-16 15:14:50,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 15:14:50,944 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 59 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-16 15:14:50,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 238 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2023-12-16 15:14:50,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-12-16 15:14:50,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 97. [2023-12-16 15:14:50,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 15:14:50,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 143 transitions. [2023-12-16 15:14:50,960 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 143 transitions. Word has length 114 [2023-12-16 15:14:50,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:14:50,960 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 143 transitions. [2023-12-16 15:14:50,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:14:50,960 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 143 transitions. [2023-12-16 15:14:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 15:14:50,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:14:50,963 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:14:50,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 15:14:51,164 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 15:14:51,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:14:51,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:14:51,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1997917195, now seen corresponding path program 1 times [2023-12-16 15:14:51,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:14:51,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063708676] [2023-12-16 15:14:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:14:51,166 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 15:14:51,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:14:51,167 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 15:14:51,168 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 15:14:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:14:52,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 15:14:52,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:14:53,733 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 293 proven. 33 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2023-12-16 15:14:53,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:14:56,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:14:56,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063708676] [2023-12-16 15:14:56,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063708676] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:14:56,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [9280239] [2023-12-16 15:14:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:14:56,870 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 15:14:56,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 15:14:56,872 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 15:14:56,887 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 15:14:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:14:57,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:14:57,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:14:58,902 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 15:14:58,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:14:58,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [9280239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:14:58,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:14:58,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-16 15:14:58,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036524892] [2023-12-16 15:14:58,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:14:58,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:14:58,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:14:58,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:14:58,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-16 15:14:58,904 INFO L87 Difference]: Start difference. First operand 97 states and 143 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:15:01,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:15:05,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:15:08,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:15:12,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:15:13,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:15:13,022 INFO L93 Difference]: Finished difference Result 221 states and 320 transitions. [2023-12-16 15:15:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 15:15:13,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2023-12-16 15:15:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:15:13,024 INFO L225 Difference]: With dead ends: 221 [2023-12-16 15:15:13,024 INFO L226 Difference]: Without dead ends: 173 [2023-12-16 15:15:13,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-16 15:15:13,026 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 59 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-12-16 15:15:13,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 171 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 1 Unknown, 0 Unchecked, 14.0s Time] [2023-12-16 15:15:13,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-16 15:15:13,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 167. [2023-12-16 15:15:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.2427184466019416) internal successors, (128), 105 states have internal predecessors, (128), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-16 15:15:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 244 transitions. [2023-12-16 15:15:13,042 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 244 transitions. Word has length 114 [2023-12-16 15:15:13,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:15:13,042 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 244 transitions. [2023-12-16 15:15:13,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 15:15:13,042 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 244 transitions. [2023-12-16 15:15:13,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 15:15:13,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:15:13,044 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:15:13,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 15:15:13,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-16 15:15:13,455 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 15:15:13,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:15:13,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:15:13,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1604890185, now seen corresponding path program 1 times [2023-12-16 15:15:13,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:15:13,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628938479] [2023-12-16 15:15:13,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:15:13,456 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 15:15:13,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:15:13,457 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 15:15:13,459 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 15:15:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:15:14,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 54 conjunts are in the unsatisfiable core [2023-12-16 15:15:14,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 15:15:41,002 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 15:15:41,013 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 15:15:41,014 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 15:15:41,032 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 15:15:41,203 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 15:15:41,203 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 115 with TraceHistMax 18,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 35 known predicates. [2023-12-16 15:15:41,207 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 15:15:41,208 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 15:15:41,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:15:41 BoogieIcfgContainer [2023-12-16 15:15:41,211 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 15:15:41,213 INFO L158 Benchmark]: Toolchain (without parser) took 77579.80ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 146.2MB in the beginning and 120.5MB in the end (delta: 25.7MB). Peak memory consumption was 67.9MB. Max. memory is 8.0GB. [2023-12-16 15:15:41,213 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 205.5MB. Free memory was 155.7MB in the beginning and 155.5MB in the end (delta: 172.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:15:41,213 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.44ms. Allocated memory is still 205.5MB. Free memory was 145.9MB in the beginning and 130.5MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 15:15:41,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.16ms. Allocated memory is still 205.5MB. Free memory was 130.5MB in the beginning and 128.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 15:15:41,214 INFO L158 Benchmark]: Boogie Preprocessor took 48.78ms. Allocated memory is still 205.5MB. Free memory was 127.8MB in the beginning and 124.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 15:15:41,214 INFO L158 Benchmark]: RCFGBuilder took 6237.09ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 124.2MB in the beginning and 196.1MB in the end (delta: -71.9MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2023-12-16 15:15:41,214 INFO L158 Benchmark]: TraceAbstraction took 71043.20ms. Allocated memory is still 247.5MB. Free memory was 195.6MB in the beginning and 120.5MB in the end (delta: 75.0MB). Peak memory consumption was 75.0MB. Max. memory is 8.0GB. [2023-12-16 15:15:41,215 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 205.5MB. Free memory was 155.7MB in the beginning and 155.5MB in the end (delta: 172.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 213.44ms. Allocated memory is still 205.5MB. Free memory was 145.9MB in the beginning and 130.5MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.16ms. Allocated memory is still 205.5MB. Free memory was 130.5MB in the beginning and 128.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.78ms. Allocated memory is still 205.5MB. Free memory was 127.8MB in the beginning and 124.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 6237.09ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 124.2MB in the beginning and 196.1MB in the end (delta: -71.9MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * TraceAbstraction took 71043.20ms. Allocated memory is still 247.5MB. Free memory was 195.6MB in the beginning and 120.5MB in the end (delta: 75.0MB). Peak memory consumption was 75.0MB. 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 115 with TraceHistMax 18,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 35 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.0s, OverallIterations: 5, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 31.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 600 SdHoareTripleChecker+Invalid, 31.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 319 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 189 IncrementalHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 281 mSDtfsCounter, 189 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 580 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=4, InterpolantAutomatonStates: 17, 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, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 568 NumberOfCodeBlocks, 568 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 563 ConstructedInterpolants, 1 QuantifiedInterpolants, 2034 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1006 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 3027/3060 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