/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_amount25_file-33.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 08:13:10,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 08:13:10,611 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 08:13:10,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 08:13:10,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 08:13:10,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 08:13:10,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 08:13:10,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 08:13:10,630 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 08:13:10,630 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 08:13:10,630 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 08:13:10,630 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 08:13:10,631 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 08:13:10,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 08:13:10,631 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 08:13:10,631 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 08:13:10,632 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 08:13:10,632 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 08:13:10,632 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 08:13:10,632 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 08:13:10,633 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 08:13:10,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 08:13:10,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 08:13:10,633 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 08:13:10,634 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 08:13:10,634 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 08:13:10,634 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 08:13:10,634 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 08:13:10,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 08:13:10,635 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 08:13:10,635 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 08:13:10,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 08:13:10,635 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 08:13:10,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 08:13:10,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 08:13:10,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 08:13:10,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 08:13:10,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 08:13:10,636 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 08:13:10,637 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 08:13:10,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 08:13:10,637 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 08:13:10,637 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 08:13:10,637 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 08:13:10,637 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 08:13:10,637 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 08:13:10,638 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 08:13:10,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 08:13:10,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 08:13:10,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 08:13:10,843 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 08:13:10,843 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 08:13:10,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-33.i [2023-12-24 08:13:11,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 08:13:12,113 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 08:13:12,114 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-33.i [2023-12-24 08:13:12,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e4f5c04b/b8e0b5f803a34cdd823589a02777c3c4/FLAGbc9c77914 [2023-12-24 08:13:12,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e4f5c04b/b8e0b5f803a34cdd823589a02777c3c4 [2023-12-24 08:13:12,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 08:13:12,132 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 08:13:12,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 08:13:12,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 08:13:12,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 08:13:12,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76018991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12, skipping insertion in model container [2023-12-24 08:13:12,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,153 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 08:13:12,245 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_amount25_file-33.i[915,928] [2023-12-24 08:13:12,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 08:13:12,287 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 08:13:12,296 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_amount25_file-33.i[915,928] [2023-12-24 08:13:12,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 08:13:12,319 INFO L206 MainTranslator]: Completed translation [2023-12-24 08:13:12,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12 WrapperNode [2023-12-24 08:13:12,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 08:13:12,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 08:13:12,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 08:13:12,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 08:13:12,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,353 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2023-12-24 08:13:12,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 08:13:12,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 08:13:12,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 08:13:12,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 08:13:12,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,365 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,394 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-24 08:13:12,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,403 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 08:13:12,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 08:13:12,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 08:13:12,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 08:13:12,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (1/1) ... [2023-12-24 08:13:12,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 08:13:12,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 08:13:12,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-24 08:13:12,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-24 08:13:12,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 08:13:12,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 08:13:12,504 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 08:13:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 08:13:12,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 08:13:12,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 08:13:12,586 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 08:13:12,590 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 08:13:12,852 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 08:13:12,918 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 08:13:12,918 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 08:13:12,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 08:13:12 BoogieIcfgContainer [2023-12-24 08:13:12,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 08:13:12,921 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 08:13:12,921 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 08:13:12,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 08:13:12,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 08:13:12" (1/3) ... [2023-12-24 08:13:12,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329e5bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 08:13:12, skipping insertion in model container [2023-12-24 08:13:12,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:13:12" (2/3) ... [2023-12-24 08:13:12,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329e5bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 08:13:12, skipping insertion in model container [2023-12-24 08:13:12,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 08:13:12" (3/3) ... [2023-12-24 08:13:12,926 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-33.i [2023-12-24 08:13:12,940 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 08:13:12,940 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 08:13:12,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 08:13:12,987 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;@427120b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 08:13:12,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 08:13:12,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-24 08:13:13,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-24 08:13:13,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:13:13,003 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:13:13,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:13:13,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:13:13,010 INFO L85 PathProgramCache]: Analyzing trace with hash 2069998517, now seen corresponding path program 1 times [2023-12-24 08:13:13,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:13:13,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894650615] [2023-12-24 08:13:13,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:13:13,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:13:13,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:13:13,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 08:13:13,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 08:13:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:13:13,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 08:13:13,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:13:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-24 08:13:13,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:13:13,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:13:13,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894650615] [2023-12-24 08:13:13,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894650615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:13:13,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:13:13,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 08:13:13,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865912468] [2023-12-24 08:13:13,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:13:13,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 08:13:13,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:13:13,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 08:13:13,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 08:13:13,281 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-24 08:13:13,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:13:13,378 INFO L93 Difference]: Finished difference Result 65 states and 106 transitions. [2023-12-24 08:13:13,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 08:13:13,383 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-12-24 08:13:13,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:13:13,388 INFO L225 Difference]: With dead ends: 65 [2023-12-24 08:13:13,388 INFO L226 Difference]: Without dead ends: 32 [2023-12-24 08:13:13,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 08:13:13,392 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 08:13:13,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 08:13:13,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-12-24 08:13:13,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-12-24 08:13:13,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-24 08:13:13,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2023-12-24 08:13:13,427 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 56 [2023-12-24 08:13:13,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:13:13,427 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2023-12-24 08:13:13,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-24 08:13:13,428 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-12-24 08:13:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-24 08:13:13,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:13:13,429 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:13:13,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-24 08:13:13,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:13:13,635 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:13:13,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:13:13,636 INFO L85 PathProgramCache]: Analyzing trace with hash 592198129, now seen corresponding path program 1 times [2023-12-24 08:13:13,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:13:13,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746703840] [2023-12-24 08:13:13,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:13:13,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:13:13,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:13:13,638 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 08:13:13,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 08:13:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:13:13,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 08:13:13,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:13:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-24 08:13:13,859 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:13:13,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:13:13,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746703840] [2023-12-24 08:13:13,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746703840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:13:13,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:13:13,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 08:13:13,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108344606] [2023-12-24 08:13:13,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:13:13,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 08:13:13,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:13:13,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 08:13:13,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 08:13:13,862 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-24 08:13:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:13:14,015 INFO L93 Difference]: Finished difference Result 103 states and 140 transitions. [2023-12-24 08:13:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 08:13:14,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2023-12-24 08:13:14,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:13:14,019 INFO L225 Difference]: With dead ends: 103 [2023-12-24 08:13:14,019 INFO L226 Difference]: Without dead ends: 72 [2023-12-24 08:13:14,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 08:13:14,020 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 68 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 08:13:14,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 157 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 08:13:14,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-24 08:13:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 61. [2023-12-24 08:13:14,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 42 states have internal predecessors, (53), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 08:13:14,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 85 transitions. [2023-12-24 08:13:14,031 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 85 transitions. Word has length 56 [2023-12-24 08:13:14,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:13:14,031 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 85 transitions. [2023-12-24 08:13:14,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-24 08:13:14,032 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2023-12-24 08:13:14,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-24 08:13:14,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:13:14,033 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:13:14,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-24 08:13:14,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:13:14,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:13:14,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:13:14,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1272256499, now seen corresponding path program 1 times [2023-12-24 08:13:14,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:13:14,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363156832] [2023-12-24 08:13:14,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:13:14,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:13:14,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:13:14,245 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 08:13:14,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 08:13:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:13:14,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 08:13:14,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:13:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-24 08:13:14,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:13:14,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:13:14,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363156832] [2023-12-24 08:13:14,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363156832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:13:14,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:13:14,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-24 08:13:14,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027891041] [2023-12-24 08:13:14,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:13:14,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-24 08:13:14,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:13:14,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-24 08:13:14,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-24 08:13:14,482 INFO L87 Difference]: Start difference. First operand 61 states and 85 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-24 08:13:14,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:13:14,746 INFO L93 Difference]: Finished difference Result 141 states and 185 transitions. [2023-12-24 08:13:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-24 08:13:14,750 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-12-24 08:13:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:13:14,752 INFO L225 Difference]: With dead ends: 141 [2023-12-24 08:13:14,752 INFO L226 Difference]: Without dead ends: 81 [2023-12-24 08:13:14,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-24 08:13:14,754 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 68 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 08:13:14,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 67 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 08:13:14,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-24 08:13:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 77. [2023-12-24 08:13:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 54 states have internal predecessors, (63), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 08:13:14,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 95 transitions. [2023-12-24 08:13:14,764 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 95 transitions. Word has length 56 [2023-12-24 08:13:14,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:13:14,764 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 95 transitions. [2023-12-24 08:13:14,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-24 08:13:14,765 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 95 transitions. [2023-12-24 08:13:14,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-24 08:13:14,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:13:14,765 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:13:14,770 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 [2023-12-24 08:13:14,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:13:14,970 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:13:14,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:13:14,970 INFO L85 PathProgramCache]: Analyzing trace with hash 119322627, now seen corresponding path program 1 times [2023-12-24 08:13:14,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:13:14,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938857035] [2023-12-24 08:13:14,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:13:14,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:13:14,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:13:14,972 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 08:13:14,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 08:13:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:13:15,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 08:13:15,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:13:15,161 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-24 08:13:15,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:13:15,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:13:15,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938857035] [2023-12-24 08:13:15,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938857035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:13:15,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:13:15,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 08:13:15,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540633953] [2023-12-24 08:13:15,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:13:15,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 08:13:15,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:13:15,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 08:13:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 08:13:15,163 INFO L87 Difference]: Start difference. First operand 77 states and 95 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-24 08:13:15,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:13:15,399 INFO L93 Difference]: Finished difference Result 252 states and 309 transitions. [2023-12-24 08:13:15,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 08:13:15,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 57 [2023-12-24 08:13:15,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:13:15,401 INFO L225 Difference]: With dead ends: 252 [2023-12-24 08:13:15,401 INFO L226 Difference]: Without dead ends: 176 [2023-12-24 08:13:15,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-24 08:13:15,402 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 67 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 08:13:15,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 225 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 08:13:15,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-12-24 08:13:15,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 114. [2023-12-24 08:13:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 80 states have (on average 1.1375) internal successors, (91), 80 states have internal predecessors, (91), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-24 08:13:15,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2023-12-24 08:13:15,432 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 57 [2023-12-24 08:13:15,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:13:15,433 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2023-12-24 08:13:15,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-24 08:13:15,433 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2023-12-24 08:13:15,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-24 08:13:15,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:13:15,434 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:13:15,441 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 [2023-12-24 08:13:15,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:13:15,639 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:13:15,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:13:15,639 INFO L85 PathProgramCache]: Analyzing trace with hash 119382209, now seen corresponding path program 1 times [2023-12-24 08:13:15,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:13:15,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533717456] [2023-12-24 08:13:15,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:13:15,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:13:15,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:13:15,641 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 08:13:15,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 08:13:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:13:15,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-24 08:13:15,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:14:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-24 08:14:18,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:14:18,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:14:18,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533717456] [2023-12-24 08:14:18,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533717456] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:14:18,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:14:18,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-24 08:14:18,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113043214] [2023-12-24 08:14:18,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:14:18,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-24 08:14:18,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:14:18,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-24 08:14:18,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-24 08:14:18,471 INFO L87 Difference]: Start difference. First operand 114 states and 139 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-24 08:14:18,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:14:18,765 INFO L93 Difference]: Finished difference Result 120 states and 145 transitions. [2023-12-24 08:14:18,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 08:14:18,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 57 [2023-12-24 08:14:18,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:14:18,767 INFO L225 Difference]: With dead ends: 120 [2023-12-24 08:14:18,767 INFO L226 Difference]: Without dead ends: 118 [2023-12-24 08:14:18,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-24 08:14:18,767 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 29 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 08:14:18,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 143 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 08:14:18,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-24 08:14:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2023-12-24 08:14:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 82 states have internal predecessors, (93), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-24 08:14:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 141 transitions. [2023-12-24 08:14:18,783 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 141 transitions. Word has length 57 [2023-12-24 08:14:18,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:14:18,784 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 141 transitions. [2023-12-24 08:14:18,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-24 08:14:18,784 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 141 transitions. [2023-12-24 08:14:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-24 08:14:18,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:14:18,785 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:14:18,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-24 08:14:18,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:14:18,990 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:14:18,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:14:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash 462546854, now seen corresponding path program 1 times [2023-12-24 08:14:18,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:14:18,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408223033] [2023-12-24 08:14:18,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:14:18,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:14:18,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:14:18,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 08:14:18,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 08:14:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:14:19,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 08:14:19,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:14:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-24 08:14:19,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 08:14:19,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:14:19,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408223033] [2023-12-24 08:14:19,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408223033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 08:14:19,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 08:14:19,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 08:14:19,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021859950] [2023-12-24 08:14:19,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 08:14:19,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 08:14:19,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:14:19,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 08:14:19,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 08:14:19,096 INFO L87 Difference]: Start difference. First operand 116 states and 141 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-24 08:14:19,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:14:19,184 INFO L93 Difference]: Finished difference Result 118 states and 142 transitions. [2023-12-24 08:14:19,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 08:14:19,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 58 [2023-12-24 08:14:19,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:14:19,190 INFO L225 Difference]: With dead ends: 118 [2023-12-24 08:14:19,190 INFO L226 Difference]: Without dead ends: 76 [2023-12-24 08:14:19,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 08:14:19,191 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 08:14:19,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 63 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 08:14:19,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-24 08:14:19,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-24 08:14:19,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 53 states have internal predecessors, (57), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 08:14:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 89 transitions. [2023-12-24 08:14:19,221 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 89 transitions. Word has length 58 [2023-12-24 08:14:19,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:14:19,222 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 89 transitions. [2023-12-24 08:14:19,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-24 08:14:19,224 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 89 transitions. [2023-12-24 08:14:19,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-24 08:14:19,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:14:19,228 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:14:19,235 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 (7)] Ended with exit code 0 [2023-12-24 08:14:19,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:14:19,438 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:14:19,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:14:19,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1335521840, now seen corresponding path program 1 times [2023-12-24 08:14:19,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:14:19,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675106587] [2023-12-24 08:14:19,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:14:19,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:14:19,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:14:19,441 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 08:14:19,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-24 08:14:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:14:19,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-24 08:14:19,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:15:37,530 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 345 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-24 08:15:37,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 08:16:29,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:16:29,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675106587] [2023-12-24 08:16:29,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675106587] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 08:16:29,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [223451507] [2023-12-24 08:16:29,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:16:29,891 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 08:16:29,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 08:16:29,934 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 08:16:29,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-24 08:16:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:16:30,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-24 08:16:30,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:18:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 68 proven. 291 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-24 08:18:24,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 08:19:22,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [223451507] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 08:19:22,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 08:19:22,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19] total 21 [2023-12-24 08:19:22,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144120324] [2023-12-24 08:19:22,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 08:19:22,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-24 08:19:22,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:19:22,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-24 08:19:22,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2023-12-24 08:19:22,271 INFO L87 Difference]: Start difference. First operand 76 states and 89 transitions. Second operand has 22 states, 22 states have (on average 3.272727272727273) internal successors, (72), 21 states have internal predecessors, (72), 5 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-12-24 08:19:35,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:19:35,028 INFO L93 Difference]: Finished difference Result 151 states and 165 transitions. [2023-12-24 08:19:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-24 08:19:35,028 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.272727272727273) internal successors, (72), 21 states have internal predecessors, (72), 5 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 113 [2023-12-24 08:19:35,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:19:35,029 INFO L225 Difference]: With dead ends: 151 [2023-12-24 08:19:35,029 INFO L226 Difference]: Without dead ends: 149 [2023-12-24 08:19:35,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 43.9s TimeCoverageRelationStatistics Valid=560, Invalid=2410, Unknown=0, NotChecked=0, Total=2970 [2023-12-24 08:19:35,031 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 106 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-24 08:19:35,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 88 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-24 08:19:35,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-24 08:19:35,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 92. [2023-12-24 08:19:35,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 65 states have (on average 1.0615384615384615) internal successors, (69), 65 states have internal predecessors, (69), 16 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 08:19:35,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2023-12-24 08:19:35,041 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 113 [2023-12-24 08:19:35,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:19:35,042 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2023-12-24 08:19:35,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.272727272727273) internal successors, (72), 21 states have internal predecessors, (72), 5 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-12-24 08:19:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2023-12-24 08:19:35,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-24 08:19:35,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 08:19:35,043 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-24 08:19:35,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-24 08:19:35,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-24 08:19:35,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:19:35,464 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 08:19:35,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 08:19:35,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1335462258, now seen corresponding path program 1 times [2023-12-24 08:19:35,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 08:19:35,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119555116] [2023-12-24 08:19:35,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:19:35,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:19:35,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 08:19:35,467 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 08:19:35,469 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 (10)] Waiting until timeout for monitored process [2023-12-24 08:19:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:19:35,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-24 08:19:35,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:20:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 277 proven. 1 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-12-24 08:20:20,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 08:20:52,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 08:20:52,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119555116] [2023-12-24 08:20:52,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119555116] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 08:20:52,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1168325170] [2023-12-24 08:20:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 08:20:52,222 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 08:20:52,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 08:20:52,225 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 08:20:52,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-24 08:20:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 08:20:52,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-24 08:20:52,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 08:22:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 277 proven. 1 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-12-24 08:22:29,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 08:22:57,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1168325170] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 08:22:57,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 08:22:57,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 17 [2023-12-24 08:22:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704541718] [2023-12-24 08:22:57,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 08:22:57,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-24 08:22:57,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 08:22:57,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-24 08:22:57,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2023-12-24 08:22:57,916 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-24 08:22:59,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 08:22:59,624 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2023-12-24 08:22:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-24 08:22:59,625 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 113 [2023-12-24 08:22:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 08:22:59,625 INFO L225 Difference]: With dead ends: 108 [2023-12-24 08:22:59,625 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 08:22:59,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 220 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=400, Invalid=860, Unknown=0, NotChecked=0, Total=1260 [2023-12-24 08:22:59,627 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 48 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-24 08:22:59,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 90 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-24 08:22:59,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 08:22:59,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 08:22:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 08:22:59,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 08:22:59,627 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2023-12-24 08:22:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 08:22:59,627 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 08:22:59,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-24 08:22:59,628 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 08:22:59,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 08:22:59,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 08:22:59,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-12-24 08:22:59,842 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 (10)] Forceful destruction successful, exit code 0 [2023-12-24 08:23:00,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 08:23:00,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 08:23:01,483 INFO L895 garLoopResultBuilder]: At program point L89-2(lines 89 95) the Hoare annotation is: (let ((.cse11 ((_ zero_extend 24) ~var_1_17~0)) (.cse12 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse13 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse9 ((_ zero_extend 24) ~var_1_16~0))) (let ((.cse0 (bvsle .cse9 (_ bv1 32))) (.cse1 (fp.leq ~var_1_14~0 .cse13)) (.cse2 (fp.leq ~var_1_15~0 .cse13)) (.cse3 (fp.geq ~var_1_15~0 .cse12)) (.cse4 (bvsle .cse11 (_ bv1 32))) (.cse5 (fp.geq ~var_1_14~0 .cse12)) (.cse6 (bvsge .cse11 (_ bv1 32))) (.cse7 (= ~var_1_9~0 (_ bv50 8))) (.cse8 (= ~last_1_var_1_9~0 (_ bv50 8))) (.cse10 (= currentRoundingMode roundNearestTiesToEven))) (or (and .cse0 .cse1 (= (_ bv0 8) (bvadd ~var_1_7~0 (_ bv56 8))) .cse2 (= ~var_1_13~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 4999999999999.0 5.0)))) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (bvsge .cse9 (_ bv1 32)) (= (bvadd ~last_1_var_1_7~0 (_ bv56 8)) (_ bv0 8)) .cse10) (and .cse0 .cse1 (= ~var_1_1~0 ((_ extract 15 0) (bvadd (bvneg (bvmul ((_ zero_extend 24) ~last_1_var_1_7~0) (_ bv2 32))) (_ bv128 32)))) .cse2 (= ~var_1_8~0 ~var_1_18~0) .cse3 .cse4 .cse5 (= ~var_1_8~0 ~var_1_7~0) .cse6 .cse7 .cse8 (not (= ~var_1_16~0 (_ bv0 8))) .cse10)))) [2023-12-24 08:23:01,483 INFO L899 garLoopResultBuilder]: For program point L89-3(lines 89 95) no Hoare annotation was computed. [2023-12-24 08:23:01,483 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-24 08:23:01,483 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 54) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 37 62) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L895 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: (let ((.cse1 ((_ zero_extend 24) ~var_1_17~0)) (.cse0 ((_ zero_extend 24) ~var_1_16~0))) (and (bvsle .cse0 (_ bv1 32)) (fp.leq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (bvsle .cse1 (_ bv1 32)) (fp.geq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (bvsge .cse1 (_ bv1 32)) (= ~var_1_9~0 (_ bv50 8)) (= ~last_1_var_1_9~0 (_ bv50 8)) (bvsge .cse0 (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))) [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point L73-1(line 73) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L895 garLoopResultBuilder]: At program point L65(line 65) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse2 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse3 ((_ zero_extend 24) ~var_1_17~0)) (.cse0 ((_ zero_extend 24) ~var_1_16~0))) (and (bvsle .cse0 (_ bv1 32)) (fp.leq ~var_1_14~0 .cse1) (fp.leq ~var_1_15~0 .cse1) (fp.geq ~var_1_15~0 .cse2) (bvsle .cse3 (_ bv1 32)) (fp.geq ~var_1_14~0 .cse2) (bvsge .cse3 (_ bv1 32)) (= ~var_1_9~0 (_ bv50 8)) (= ~last_1_var_1_9~0 (_ bv50 8)) (bvsge .cse0 (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))) [2023-12-24 08:23:01,484 INFO L895 garLoopResultBuilder]: At program point L65-1(line 65) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse2 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse3 ((_ zero_extend 24) ~var_1_17~0)) (.cse0 ((_ zero_extend 24) ~var_1_16~0))) (and (bvsle .cse0 (_ bv1 32)) (fp.leq ~var_1_14~0 .cse1) (fp.leq ~var_1_15~0 .cse1) (fp.geq ~var_1_15~0 .cse2) (bvsle .cse3 (_ bv1 32)) (fp.geq ~var_1_14~0 .cse2) (bvsge .cse3 (_ bv1 32)) (= ~var_1_9~0 (_ bv50 8)) (= ~last_1_var_1_9~0 (_ bv50 8)) (bvsge .cse0 (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))) [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 62) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point L66(line 66) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 52) no Hoare annotation was computed. [2023-12-24 08:23:01,484 INFO L895 garLoopResultBuilder]: At program point L75(line 75) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse2 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ zero_extend 24) ~var_1_16~0))) (and (bvsle .cse0 (_ bv1 32)) (fp.leq ~var_1_14~0 .cse1) (fp.leq ~var_1_15~0 .cse1) (fp.geq ~var_1_15~0 .cse2) (fp.geq ~var_1_14~0 .cse2) (= ~var_1_9~0 (_ bv50 8)) (= ~last_1_var_1_9~0 (_ bv50 8)) (bvsge .cse0 (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))) [2023-12-24 08:23:01,485 INFO L895 garLoopResultBuilder]: At program point L75-1(line 75) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse2 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ zero_extend 24) ~var_1_16~0))) (and (bvsle .cse0 (_ bv1 32)) (fp.leq ~var_1_14~0 .cse1) (fp.leq ~var_1_15~0 .cse1) (fp.geq ~var_1_15~0 .cse2) (fp.geq ~var_1_14~0 .cse2) (bvsge ((_ zero_extend 24) ~var_1_17~0) (_ bv1 32)) (= ~var_1_9~0 (_ bv50 8)) (= ~last_1_var_1_9~0 (_ bv50 8)) (bvsge .cse0 (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))) [2023-12-24 08:23:01,485 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 08:23:01,485 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (let ((.cse1 ((_ zero_extend 24) ~var_1_17~0)) (.cse0 ((_ zero_extend 24) ~var_1_16~0))) (and (bvsle .cse0 (_ bv1 32)) (bvsle .cse1 (_ bv1 32)) (bvsge .cse1 (_ bv1 32)) (= ~var_1_9~0 (_ bv50 8)) (= ~last_1_var_1_9~0 (_ bv50 8)) (bvsge .cse0 (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))) [2023-12-24 08:23:01,485 INFO L899 garLoopResultBuilder]: For program point L71-1(line 71) no Hoare annotation was computed. [2023-12-24 08:23:01,485 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 61) no Hoare annotation was computed. [2023-12-24 08:23:01,485 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 55 57) no Hoare annotation was computed. [2023-12-24 08:23:01,485 INFO L899 garLoopResultBuilder]: For program point L76(lines 63 77) no Hoare annotation was computed. [2023-12-24 08:23:01,485 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2023-12-24 08:23:01,485 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 43) no Hoare annotation was computed. [2023-12-24 08:23:01,485 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse2 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse3 ((_ zero_extend 24) ~var_1_17~0)) (.cse0 ((_ zero_extend 24) ~var_1_16~0))) (and (bvsle .cse0 (_ bv1 32)) (fp.leq ~var_1_14~0 .cse1) (fp.leq ~var_1_15~0 .cse1) (fp.geq ~var_1_15~0 .cse2) (bvsle .cse3 (_ bv1 32)) (fp.geq ~var_1_14~0 .cse2) (bvsge .cse3 (_ bv1 32)) (= ~var_1_9~0 (_ bv50 8)) (= ~last_1_var_1_9~0 (_ bv50 8)) (bvsge .cse0 (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))) [2023-12-24 08:23:01,485 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse2 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse3 ((_ zero_extend 24) ~var_1_17~0)) (.cse0 ((_ zero_extend 24) ~var_1_16~0))) (and (bvsle .cse0 (_ bv1 32)) (fp.leq ~var_1_14~0 .cse1) (fp.leq ~var_1_15~0 .cse1) (fp.geq ~var_1_15~0 .cse2) (bvsle .cse3 (_ bv1 32)) (fp.geq ~var_1_14~0 .cse2) (bvsge .cse3 (_ bv1 32)) (= ~var_1_9~0 (_ bv50 8)) (= ~last_1_var_1_9~0 (_ bv50 8)) (bvsge .cse0 (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))) [2023-12-24 08:23:01,485 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-24 08:23:01,485 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-24 08:23:01,485 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-24 08:23:01,485 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-24 08:23:01,487 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 08:23:01,489 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 08:23:01,503 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-24 08:23:01,504 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-24 08:23:01,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 08:23:01 BoogieIcfgContainer [2023-12-24 08:23:01,505 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 08:23:01,505 INFO L158 Benchmark]: Toolchain (without parser) took 589373.32ms. Allocated memory was 222.3MB in the beginning and 1.0GB in the end (delta: 791.7MB). Free memory was 171.0MB in the beginning and 409.2MB in the end (delta: -238.2MB). Peak memory consumption was 554.6MB. Max. memory is 8.0GB. [2023-12-24 08:23:01,505 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 08:23:01,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.67ms. Allocated memory is still 222.3MB. Free memory was 170.5MB in the beginning and 157.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-24 08:23:01,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.27ms. Allocated memory is still 222.3MB. Free memory was 157.8MB in the beginning and 155.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 08:23:01,506 INFO L158 Benchmark]: Boogie Preprocessor took 64.43ms. Allocated memory is still 222.3MB. Free memory was 155.8MB in the beginning and 153.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 08:23:01,506 INFO L158 Benchmark]: RCFGBuilder took 500.01ms. Allocated memory is still 222.3MB. Free memory was 153.2MB in the beginning and 135.4MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-24 08:23:01,506 INFO L158 Benchmark]: TraceAbstraction took 588583.54ms. Allocated memory was 222.3MB in the beginning and 1.0GB in the end (delta: 791.7MB). Free memory was 134.9MB in the beginning and 409.2MB in the end (delta: -274.3MB). Peak memory consumption was 517.9MB. Max. memory is 8.0GB. [2023-12-24 08:23:01,508 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 184.5MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 186.67ms. Allocated memory is still 222.3MB. Free memory was 170.5MB in the beginning and 157.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.27ms. Allocated memory is still 222.3MB. Free memory was 157.8MB in the beginning and 155.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.43ms. Allocated memory is still 222.3MB. Free memory was 155.8MB in the beginning and 153.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 500.01ms. Allocated memory is still 222.3MB. Free memory was 153.2MB in the beginning and 135.4MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 588583.54ms. Allocated memory was 222.3MB in the beginning and 1.0GB in the end (delta: 791.7MB). Free memory was 134.9MB in the beginning and 409.2MB in the end (delta: -274.3MB). Peak memory consumption was 517.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 588.5s, OverallIterations: 8, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 397 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 392 mSDsluCounter, 874 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 601 mSDsCounter, 121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 658 IncrementalHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 121 mSolverCounterUnsat, 273 mSDtfsCounter, 658 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 882 GetRequests, 749 SyntacticMatches, 5 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1235 ImplicationChecksByTransitivity, 49.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=5, InterpolantAutomatonStates: 90, 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, 8 MinimizatonAttempts, 136 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 81 PreInvPairs, 101 NumberOfFragments, 453 HoareAnnotationTreeSize, 81 FormulaSimplifications, 2840 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FormulaSimplificationsInter, 5493 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 567.3s InterpolantComputationTime, 792 NumberOfCodeBlocks, 792 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 782 ConstructedInterpolants, 0 QuantifiedInterpolants, 6373 SizeOfPredicates, 133 NumberOfNonLiveVariables, 1396 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 2378/2684 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 89]: Loop Invariant Derived loop invariant: (((((((((var_1_16 <= 1) && (0 == ((var_1_7 + 56) % 256))) && (var_1_17 <= 1)) && (var_1_17 >= 1)) && (var_1_9 == 50)) && (last_1_var_1_9 == 50)) && (var_1_16 >= 1)) && (((last_1_var_1_7 + 56) % 256) == 0)) || (((((((((var_1_16 <= 1) && (var_1_1 == (((-((last_1_var_1_7 * 2)) + 128) % 4294967296) & 32767))) && (var_1_8 == var_1_18)) && (var_1_17 <= 1)) && (var_1_8 == var_1_7)) && (var_1_17 >= 1)) && (var_1_9 == 50)) && (last_1_var_1_9 == 50)) && !((var_1_16 == 0)))) RESULT: Ultimate proved your program to be correct! [2023-12-24 08:23:01,724 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-24 08:23:01,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...