/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_loopvsstraightlinecode_50-while_file-72.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 04:23:03,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 04:23:03,757 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 04:23:03,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 04:23:03,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 04:23:03,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 04:23:03,790 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 04:23:03,790 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 04:23:03,791 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 04:23:03,791 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 04:23:03,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 04:23:03,791 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 04:23:03,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 04:23:03,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 04:23:03,792 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 04:23:03,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 04:23:03,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 04:23:03,804 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 04:23:03,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 04:23:03,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 04:23:03,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 04:23:03,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 04:23:03,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 04:23:03,806 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 04:23:03,806 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 04:23:03,806 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 04:23:03,806 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 04:23:03,806 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 04:23:03,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 04:23:03,807 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 04:23:03,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 04:23:03,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 04:23:03,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 04:23:03,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 04:23:03,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 04:23:03,808 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 04:23:03,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 04:23:03,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 04:23:03,808 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 04:23:03,808 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 04:23:03,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 04:23:03,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 04:23:03,808 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 04:23:03,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 04:23:03,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 04:23:03,809 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 04:23:03,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 04:23:03,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 04:23:03,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 04:23:03,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 04:23:03,972 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 04:23:03,973 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 04:23:03,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-72.i [2023-12-24 04:23:04,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 04:23:05,194 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 04:23:05,195 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-72.i [2023-12-24 04:23:05,204 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94dccbdda/6cc04d96519c411183ddbc5508cc4316/FLAG9992e5c45 [2023-12-24 04:23:05,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94dccbdda/6cc04d96519c411183ddbc5508cc4316 [2023-12-24 04:23:05,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 04:23:05,217 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 04:23:05,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 04:23:05,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 04:23:05,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 04:23:05,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a3cebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05, skipping insertion in model container [2023-12-24 04:23:05,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,258 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 04:23:05,388 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_loopvsstraightlinecode_50-while_file-72.i[915,928] [2023-12-24 04:23:05,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 04:23:05,447 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 04:23:05,455 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_loopvsstraightlinecode_50-while_file-72.i[915,928] [2023-12-24 04:23:05,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 04:23:05,489 INFO L206 MainTranslator]: Completed translation [2023-12-24 04:23:05,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05 WrapperNode [2023-12-24 04:23:05,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 04:23:05,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 04:23:05,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 04:23:05,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 04:23:05,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,522 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 134 [2023-12-24 04:23:05,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 04:23:05,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 04:23:05,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 04:23:05,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 04:23:05,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,533 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,541 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 04:23:05,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 04:23:05,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 04:23:05,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 04:23:05,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 04:23:05,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (1/1) ... [2023-12-24 04:23:05,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 04:23:05,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 04:23:05,578 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 04:23:05,601 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 04:23:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 04:23:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 04:23:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 04:23:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 04:23:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 04:23:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 04:23:05,658 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 04:23:05,660 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 04:23:15,750 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 04:23:15,789 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 04:23:15,789 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 04:23:15,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 04:23:15 BoogieIcfgContainer [2023-12-24 04:23:15,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 04:23:15,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 04:23:15,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 04:23:15,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 04:23:15,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 04:23:05" (1/3) ... [2023-12-24 04:23:15,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4928f385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 04:23:15, skipping insertion in model container [2023-12-24 04:23:15,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:23:05" (2/3) ... [2023-12-24 04:23:15,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4928f385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 04:23:15, skipping insertion in model container [2023-12-24 04:23:15,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 04:23:15" (3/3) ... [2023-12-24 04:23:15,800 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-72.i [2023-12-24 04:23:15,813 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 04:23:15,813 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 04:23:15,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 04:23:15,861 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;@327288fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 04:23:15,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 04:23:15,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-24 04:23:15,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-24 04:23:15,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 04:23:15,877 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:15,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 04:23:15,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 04:23:15,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2061077504, now seen corresponding path program 1 times [2023-12-24 04:23:15,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 04:23:15,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727335315] [2023-12-24 04:23:15,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 04:23:15,896 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 04:23:15,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 04:23:15,933 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 04:23:15,972 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 04:23:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 04:23:16,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 04:23:16,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 04:23:16,432 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-12-24 04:23:16,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 04:23:16,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 04:23:16,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727335315] [2023-12-24 04:23:16,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727335315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 04:23:16,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 04:23:16,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 04:23:16,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691061281] [2023-12-24 04:23:16,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 04:23:16,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 04:23:16,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 04:23:16,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 04:23:16,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 04:23:16,458 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-24 04:23:20,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:23:20,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 04:23:20,637 INFO L93 Difference]: Finished difference Result 99 states and 173 transitions. [2023-12-24 04:23:20,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 04:23:20,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2023-12-24 04:23:20,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 04:23:20,695 INFO L225 Difference]: With dead ends: 99 [2023-12-24 04:23:20,695 INFO L226 Difference]: Without dead ends: 49 [2023-12-24 04:23:20,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 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 04:23:20,700 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-24 04:23:20,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-24 04:23:20,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-24 04:23:20,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-24 04:23:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-24 04:23:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 73 transitions. [2023-12-24 04:23:20,727 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 73 transitions. Word has length 107 [2023-12-24 04:23:20,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 04:23:20,728 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 73 transitions. [2023-12-24 04:23:20,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-24 04:23:20,728 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2023-12-24 04:23:20,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-24 04:23:20,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 04:23:20,730 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:20,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-24 04:23:20,942 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 04:23:20,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 04:23:20,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 04:23:20,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2052122393, now seen corresponding path program 1 times [2023-12-24 04:23:20,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 04:23:20,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976124565] [2023-12-24 04:23:20,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 04:23:20,944 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 04:23:20,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 04:23:20,955 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 04:23:20,958 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 04:23:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 04:23:21,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 04:23:21,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 04:23:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-24 04:23:22,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 04:23:22,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 04:23:22,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976124565] [2023-12-24 04:23:22,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976124565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 04:23:22,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 04:23:22,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 04:23:22,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584272446] [2023-12-24 04:23:22,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 04:23:22,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 04:23:22,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 04:23:22,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 04:23:22,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 04:23:22,844 INFO L87 Difference]: Start difference. First operand 49 states and 73 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 04:23:27,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:23:31,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:23:35,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:23:39,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:23:43,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:23:47,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:23:51,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:23:51,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 04:23:51,609 INFO L93 Difference]: Finished difference Result 154 states and 230 transitions. [2023-12-24 04:23:51,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 04:23:51,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-12-24 04:23:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 04:23:51,667 INFO L225 Difference]: With dead ends: 154 [2023-12-24 04:23:51,667 INFO L226 Difference]: Without dead ends: 106 [2023-12-24 04:23:51,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 04:23:51,669 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 66 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 35 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2023-12-24 04:23:51,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 198 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 28.7s Time] [2023-12-24 04:23:51,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-24 04:23:51,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 82. [2023-12-24 04:23:51,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-24 04:23:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 122 transitions. [2023-12-24 04:23:51,692 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 122 transitions. Word has length 108 [2023-12-24 04:23:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 04:23:51,692 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 122 transitions. [2023-12-24 04:23:51,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 04:23:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 122 transitions. [2023-12-24 04:23:51,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-24 04:23:51,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 04:23:51,694 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:51,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 04:23:51,911 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 04:23:51,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 04:23:51,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 04:23:51,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1680786142, now seen corresponding path program 1 times [2023-12-24 04:23:51,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 04:23:51,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773564296] [2023-12-24 04:23:51,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 04:23:51,913 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 04:23:51,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 04:23:51,915 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 04:23:51,917 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 04:23:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 04:23:52,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 04:23:52,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 04:23:52,923 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-24 04:23:52,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 04:23:52,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 04:23:52,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773564296] [2023-12-24 04:23:52,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773564296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 04:23:52,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 04:23:52,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 04:23:52,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669597453] [2023-12-24 04:23:52,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 04:23:52,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 04:23:52,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 04:23:52,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 04:23:52,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 04:23:52,926 INFO L87 Difference]: Start difference. First operand 82 states and 122 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 04:23:57,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:01,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:05,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:09,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 04:24:09,466 INFO L93 Difference]: Finished difference Result 146 states and 217 transitions. [2023-12-24 04:24:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 04:24:09,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2023-12-24 04:24:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 04:24:09,526 INFO L225 Difference]: With dead ends: 146 [2023-12-24 04:24:09,526 INFO L226 Difference]: Without dead ends: 98 [2023-12-24 04:24:09,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 04:24:09,528 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 41 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 35 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-12-24 04:24:09,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 204 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 16.5s Time] [2023-12-24 04:24:09,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-24 04:24:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 83. [2023-12-24 04:24:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 46 states have internal predecessors, (55), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-24 04:24:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 123 transitions. [2023-12-24 04:24:09,542 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 123 transitions. Word has length 109 [2023-12-24 04:24:09,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 04:24:09,543 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 123 transitions. [2023-12-24 04:24:09,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 04:24:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 123 transitions. [2023-12-24 04:24:09,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-24 04:24:09,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 04:24:09,544 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:09,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 04:24:09,744 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 04:24:09,745 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 04:24:09,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 04:24:09,746 INFO L85 PathProgramCache]: Analyzing trace with hash 344698060, now seen corresponding path program 1 times [2023-12-24 04:24:09,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 04:24:09,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16104318] [2023-12-24 04:24:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 04:24:09,746 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 04:24:09,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 04:24:09,750 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 04:24:09,751 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 04:24:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 04:24:10,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 04:24:10,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 04:24:11,412 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-24 04:24:11,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 04:24:11,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 04:24:11,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16104318] [2023-12-24 04:24:11,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16104318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 04:24:11,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 04:24:11,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 04:24:11,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156432509] [2023-12-24 04:24:11,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 04:24:11,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 04:24:11,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 04:24:11,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 04:24:11,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 04:24:11,415 INFO L87 Difference]: Start difference. First operand 83 states and 123 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 04:24:15,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:19,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:23,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:27,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:31,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:31,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 04:24:31,961 INFO L93 Difference]: Finished difference Result 146 states and 216 transitions. [2023-12-24 04:24:32,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 04:24:32,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2023-12-24 04:24:32,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 04:24:32,016 INFO L225 Difference]: With dead ends: 146 [2023-12-24 04:24:32,016 INFO L226 Difference]: Without dead ends: 98 [2023-12-24 04:24:32,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 04:24:32,017 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 41 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 35 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2023-12-24 04:24:32,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 199 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 15 Invalid, 5 Unknown, 0 Unchecked, 20.5s Time] [2023-12-24 04:24:32,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-24 04:24:32,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 85. [2023-12-24 04:24:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-24 04:24:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 126 transitions. [2023-12-24 04:24:32,029 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 126 transitions. Word has length 110 [2023-12-24 04:24:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 04:24:32,029 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 126 transitions. [2023-12-24 04:24:32,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 04:24:32,029 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 126 transitions. [2023-12-24 04:24:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-24 04:24:32,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 04:24:32,030 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:32,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 04:24:32,242 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 04:24:32,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 04:24:32,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 04:24:32,245 INFO L85 PathProgramCache]: Analyzing trace with hash 737725070, now seen corresponding path program 1 times [2023-12-24 04:24:32,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 04:24:32,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279893051] [2023-12-24 04:24:32,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 04:24:32,245 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 04:24:32,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 04:24:32,246 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 04:24:32,250 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 04:24:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 04:24:32,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 04:24:32,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 04:24:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 246 proven. 33 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-12-24 04:24:33,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 04:24:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 15 proven. 33 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-24 04:24:33,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 04:24:33,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279893051] [2023-12-24 04:24:33,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279893051] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 04:24:33,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 04:24:33,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-24 04:24:33,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51949020] [2023-12-24 04:24:33,353 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 04:24:33,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 04:24:33,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 04:24:33,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 04:24:33,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-24 04:24:33,355 INFO L87 Difference]: Start difference. First operand 85 states and 126 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-24 04:24:37,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:41,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:45,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 04:24:46,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 04:24:46,114 INFO L93 Difference]: Finished difference Result 145 states and 208 transitions. [2023-12-24 04:24:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 04:24:46,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 110 [2023-12-24 04:24:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 04:24:46,116 INFO L225 Difference]: With dead ends: 145 [2023-12-24 04:24:46,116 INFO L226 Difference]: Without dead ends: 97 [2023-12-24 04:24:46,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-24 04:24:46,117 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 50 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-12-24 04:24:46,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 121 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 119 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2023-12-24 04:24:46,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-24 04:24:46,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2023-12-24 04:24:46,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 54 states have internal predecessors, (63), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-24 04:24:46,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 131 transitions. [2023-12-24 04:24:46,133 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 131 transitions. Word has length 110 [2023-12-24 04:24:46,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 04:24:46,134 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 131 transitions. [2023-12-24 04:24:46,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-24 04:24:46,134 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 131 transitions. [2023-12-24 04:24:46,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-24 04:24:46,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 04:24:46,138 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:46,150 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 04:24:46,338 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 04:24:46,340 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 04:24:46,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 04:24:46,340 INFO L85 PathProgramCache]: Analyzing trace with hash -71621556, now seen corresponding path program 1 times [2023-12-24 04:24:46,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 04:24:46,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136944799] [2023-12-24 04:24:46,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 04:24:46,341 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 04:24:46,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 04:24:46,342 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 04:24:46,383 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 04:24:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 04:24:46,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-24 04:24:46,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 04:24:56,947 WARN L293 SmtUtils]: Spent 5.46s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:25:05,144 WARN L293 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:25:13,525 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:25:19,278 WARN L293 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:25:28,467 WARN L293 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:25:34,979 WARN L293 SmtUtils]: Spent 6.51s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:25:45,444 WARN L293 SmtUtils]: Spent 5.47s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:25:49,474 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~var_1_20~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 37.0 4.0))) (= (_ bv1 8) c_~last_1_var_1_17~0) (bvsge ((_ zero_extend 24) c_~var_1_19~0) (_ bv1 32)) (let ((.cse0 (fp.lt c_~last_1_var_1_20~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0)) (.cse2 (fp.add c_currentRoundingMode c_~last_1_var_1_20~0 c_~last_1_var_1_20~0))) (or (and .cse0 (fp.eq (fp.sub c_currentRoundingMode (fp.neg c_~last_1_var_1_20~0) .cse1) .cse2)) (and (not .cse0) (fp.eq (fp.sub c_currentRoundingMode c_~last_1_var_1_20~0 .cse1) .cse2)))) (bvsge ((_ zero_extend 24) c_~var_1_18~0) (_ bv1 32)) (= c_~last_1_var_1_23~0 (_ bv2 8)) (= ((_ extract 7 0) (bvadd ((_ sign_extend 24) c_~var_1_16~0) ((_ sign_extend 24) c_~var_1_11~0))) c_~var_1_10~0) (= c_~last_1_var_1_29~0 (_ bv128 32)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2023-12-24 04:26:00,004 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:26:09,748 WARN L293 SmtUtils]: Spent 5.61s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:26:23,089 WARN L293 SmtUtils]: Spent 5.59s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:26:30,974 WARN L293 SmtUtils]: Spent 7.88s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:26:40,889 WARN L293 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:26:48,528 WARN L293 SmtUtils]: Spent 7.64s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:26:57,849 WARN L293 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:27:03,660 WARN L293 SmtUtils]: Spent 5.81s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:28:48,063 WARN L293 SmtUtils]: Spent 1.21m on a formula simplification that was a NOOP. DAG size: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 04:28:55,562 WARN L293 SmtUtils]: Spent 7.49s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:29:07,654 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:29:18,352 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:29:29,670 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:29:37,957 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:29:50,061 WARN L293 SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:29:56,177 WARN L293 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:30:04,160 WARN L293 SmtUtils]: Spent 5.73s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:32:12,533 WARN L293 SmtUtils]: Spent 1.37m on a formula simplification that was a NOOP. DAG size: 53 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 04:32:20,650 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:32:27,719 WARN L293 SmtUtils]: Spent 7.07s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:32:33,892 WARN L293 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:32:42,007 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:32:53,348 WARN L293 SmtUtils]: Spent 6.50s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:33:01,462 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:33:09,577 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:33:17,694 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:33:23,114 WARN L293 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:33:31,024 WARN L293 SmtUtils]: Spent 7.91s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:33:47,917 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:33:58,465 WARN L293 SmtUtils]: Spent 6.70s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:34:06,067 WARN L293 SmtUtils]: Spent 7.60s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:34:18,203 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:34:28,730 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:34:44,762 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:34:52,867 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:35:02,451 WARN L293 SmtUtils]: Spent 6.32s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:35:13,942 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:35:26,160 WARN L293 SmtUtils]: Spent 6.33s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:35:34,269 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:35:40,178 WARN L293 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:35:48,293 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:36:01,573 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:36:14,111 WARN L293 SmtUtils]: Spent 7.59s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:36:22,221 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:36:35,228 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:36:39,273 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~var_1_26~0 ((_ zero_extend 8) c_~var_1_28~0)) (= c_~var_1_20~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 37.0 4.0))) (= c_~var_1_23~0 c_~var_1_25~0) (= (_ bv1 8) c_~var_1_17~0) (= (_ bv1 8) c_~last_1_var_1_17~0) (bvsge ((_ zero_extend 24) c_~var_1_19~0) (_ bv1 32)) (let ((.cse0 (fp.lt c_~last_1_var_1_20~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_14~0)) (.cse2 (fp.add c_currentRoundingMode c_~last_1_var_1_20~0 c_~last_1_var_1_20~0))) (or (and .cse0 (fp.eq (fp.sub c_currentRoundingMode (fp.neg c_~last_1_var_1_20~0) .cse1) .cse2)) (and (not .cse0) (fp.eq (fp.sub c_currentRoundingMode c_~last_1_var_1_20~0 .cse1) .cse2)))) (bvsge ((_ zero_extend 24) c_~var_1_18~0) (_ bv1 32)) (= c_~last_1_var_1_23~0 (_ bv2 8)) (= ((_ extract 7 0) (bvadd ((_ sign_extend 24) c_~var_1_16~0) ((_ sign_extend 24) c_~var_1_11~0))) c_~var_1_10~0) (= c_~last_1_var_1_29~0 (_ bv128 32)) (not (bvsge ((_ zero_extend 24) c_~var_1_25~0) (bvadd (bvneg ((_ zero_extend 24) c_~var_1_28~0)) ((_ zero_extend 24) c_~var_1_27~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2023-12-24 04:36:47,822 WARN L293 SmtUtils]: Spent 6.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:36:55,972 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:37:04,096 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:37:15,792 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:37:28,151 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:37:35,317 WARN L293 SmtUtils]: Spent 7.17s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:37:43,454 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 04:37:50,221 WARN L293 SmtUtils]: Spent 6.77s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-24 04:37:51,620 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 04:37:51,620 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 04:37:52,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 04:37:52,832 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 04:37:52,857 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 04:37:52,857 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 111 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-24 04:37:52,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-24 04:37:52,863 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-24 04:37:52,865 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 04:37:52,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 04:37:52 BoogieIcfgContainer [2023-12-24 04:37:52,868 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 04:37:52,869 INFO L158 Benchmark]: Toolchain (without parser) took 887651.83ms. Allocated memory is still 381.7MB. Free memory was 341.4MB in the beginning and 328.2MB in the end (delta: 13.2MB). Peak memory consumption was 214.0MB. Max. memory is 8.0GB. [2023-12-24 04:37:52,869 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 197.1MB. Free memory is still 151.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 04:37:52,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.90ms. Allocated memory is still 381.7MB. Free memory was 341.4MB in the beginning and 327.2MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-24 04:37:52,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.37ms. Allocated memory is still 381.7MB. Free memory was 326.7MB in the beginning and 324.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 04:37:52,870 INFO L158 Benchmark]: Boogie Preprocessor took 32.33ms. Allocated memory is still 381.7MB. Free memory was 324.6MB in the beginning and 321.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-24 04:37:52,870 INFO L158 Benchmark]: RCFGBuilder took 10233.97ms. Allocated memory is still 381.7MB. Free memory was 321.5MB in the beginning and 297.4MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-24 04:37:52,870 INFO L158 Benchmark]: TraceAbstraction took 877072.92ms. Allocated memory is still 381.7MB. Free memory was 296.3MB in the beginning and 328.2MB in the end (delta: -31.9MB). Peak memory consumption was 168.9MB. Max. memory is 8.0GB. [2023-12-24 04:37:52,871 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 197.1MB. Free memory is still 151.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 271.90ms. Allocated memory is still 381.7MB. Free memory was 341.4MB in the beginning and 327.2MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.37ms. Allocated memory is still 381.7MB. Free memory was 326.7MB in the beginning and 324.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.33ms. Allocated memory is still 381.7MB. Free memory was 324.6MB in the beginning and 321.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 10233.97ms. Allocated memory is still 381.7MB. Free memory was 321.5MB in the beginning and 297.4MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 877072.92ms. Allocated memory is still 381.7MB. Free memory was 296.3MB in the beginning and 328.2MB in the end (delta: -31.9MB). Peak memory consumption was 168.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 111 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 877.0s, OverallIterations: 6, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 83.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 82.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 792 SdHoareTripleChecker+Invalid, 82.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 461 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 163 IncrementalHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 331 mSDtfsCounter, 163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 655 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=5, InterpolantAutomatonStates: 22, 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, 5 MinimizatonAttempts, 56 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 544 NumberOfCodeBlocks, 544 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 648 ConstructedInterpolants, 0 QuantifiedInterpolants, 2337 SizeOfPredicates, 6 NumberOfNonLiveVariables, 959 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 3198/3264 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown