/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_floatingpointinfluence_has-floats_file-90.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 13:20:28,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 13:20:28,150 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 13:20:28,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 13:20:28,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 13:20:28,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 13:20:28,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 13:20:28,181 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 13:20:28,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 13:20:28,186 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 13:20:28,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 13:20:28,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 13:20:28,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 13:20:28,188 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 13:20:28,188 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 13:20:28,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 13:20:28,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 13:20:28,189 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 13:20:28,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 13:20:28,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 13:20:28,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 13:20:28,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 13:20:28,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 13:20:28,190 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 13:20:28,190 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 13:20:28,190 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 13:20:28,191 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 13:20:28,191 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 13:20:28,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 13:20:28,191 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 13:20:28,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 13:20:28,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 13:20:28,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 13:20:28,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 13:20:28,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:20:28,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 13:20:28,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 13:20:28,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 13:20:28,193 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 13:20:28,193 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 13:20:28,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 13:20:28,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 13:20:28,194 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 13:20:28,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 13:20:28,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 13:20:28,194 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 13:20:28,194 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 13:20:28,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 13:20:28,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 13:20:28,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 13:20:28,390 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 13:20:28,390 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 13:20:28,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-90.i [2023-12-16 13:20:29,289 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 13:20:29,438 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 13:20:29,439 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-90.i [2023-12-16 13:20:29,443 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc68db5ad/fd1ac56e7eaa4c3f8bb634aee59ef232/FLAG80328b8c7 [2023-12-16 13:20:29,858 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc68db5ad/fd1ac56e7eaa4c3f8bb634aee59ef232 [2023-12-16 13:20:29,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 13:20:29,861 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 13:20:29,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 13:20:29,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 13:20:29,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 13:20:29,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:20:29" (1/1) ... [2023-12-16 13:20:29,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f4c84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:29, skipping insertion in model container [2023-12-16 13:20:29,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:20:29" (1/1) ... [2023-12-16 13:20:29,883 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 13:20:29,970 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_floatingpointinfluence_has-floats_file-90.i[917,930] [2023-12-16 13:20:29,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:20:30,008 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 13:20:30,016 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_floatingpointinfluence_has-floats_file-90.i[917,930] [2023-12-16 13:20:30,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 13:20:30,045 INFO L206 MainTranslator]: Completed translation [2023-12-16 13:20:30,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30 WrapperNode [2023-12-16 13:20:30,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 13:20:30,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 13:20:30,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 13:20:30,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 13:20:30,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,072 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2023-12-16 13:20:30,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 13:20:30,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 13:20:30,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 13:20:30,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 13:20:30,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,106 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 13:20:30,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,111 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 13:20:30,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 13:20:30,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 13:20:30,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 13:20:30,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (1/1) ... [2023-12-16 13:20:30,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 13:20:30,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 13:20:30,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 13:20:30,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 13:20:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 13:20:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 13:20:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 13:20:30,222 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 13:20:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 13:20:30,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 13:20:30,311 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 13:20:30,313 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 13:20:30,493 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 13:20:30,525 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 13:20:30,526 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 13:20:30,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:20:30 BoogieIcfgContainer [2023-12-16 13:20:30,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 13:20:30,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 13:20:30,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 13:20:30,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 13:20:30,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:20:29" (1/3) ... [2023-12-16 13:20:30,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc5655a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:20:30, skipping insertion in model container [2023-12-16 13:20:30,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:20:30" (2/3) ... [2023-12-16 13:20:30,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc5655a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:20:30, skipping insertion in model container [2023-12-16 13:20:30,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:20:30" (3/3) ... [2023-12-16 13:20:30,532 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-90.i [2023-12-16 13:20:30,544 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 13:20:30,544 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 13:20:30,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 13:20:30,583 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;@1979c176, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 13:20:30,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 13:20:30,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 13:20:30,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 13:20:30,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:20:30,630 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:20:30,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:20:30,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:20:30,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1356584365, now seen corresponding path program 1 times [2023-12-16 13:20:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:20:30,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177923933] [2023-12-16 13:20:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:20:30,653 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:20:30,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:20:30,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:20:30,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 13:20:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:20:30,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 13:20:30,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:20:30,854 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-12-16 13:20:30,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:20:30,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:20:30,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177923933] [2023-12-16 13:20:30,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177923933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:20:30,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:20:30,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 13:20:30,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968716694] [2023-12-16 13:20:30,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:20:30,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 13:20:30,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:20:30,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 13:20:30,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:20:30,894 INFO L87 Difference]: Start difference. First operand has 51 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 13:20:30,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:20:30,925 INFO L93 Difference]: Finished difference Result 99 states and 178 transitions. [2023-12-16 13:20:30,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 13:20:30,928 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 120 [2023-12-16 13:20:30,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:20:30,933 INFO L225 Difference]: With dead ends: 99 [2023-12-16 13:20:30,933 INFO L226 Difference]: Without dead ends: 49 [2023-12-16 13:20:30,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 13:20:30,939 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 13:20:30,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 13:20:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-16 13:20:30,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-16 13:20:30,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 13:20:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 75 transitions. [2023-12-16 13:20:30,966 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 75 transitions. Word has length 120 [2023-12-16 13:20:30,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:20:30,966 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 75 transitions. [2023-12-16 13:20:30,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 13:20:30,967 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 75 transitions. [2023-12-16 13:20:30,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 13:20:30,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:20:30,970 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:20:30,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 13:20:31,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:20:31,171 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:20:31,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:20:31,172 INFO L85 PathProgramCache]: Analyzing trace with hash -997376595, now seen corresponding path program 1 times [2023-12-16 13:20:31,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:20:31,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124801074] [2023-12-16 13:20:31,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:20:31,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:20:31,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:20:31,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:20:31,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 13:20:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:20:31,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 13:20:31,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:20:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 295 proven. 18 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2023-12-16 13:20:31,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:20:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 90 proven. 21 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2023-12-16 13:20:31,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:20:31,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124801074] [2023-12-16 13:20:31,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124801074] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 13:20:31,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 13:20:31,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-16 13:20:31,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003459135] [2023-12-16 13:20:31,797 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 13:20:31,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 13:20:31,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:20:31,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 13:20:31,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-16 13:20:31,800 INFO L87 Difference]: Start difference. First operand 49 states and 75 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 3 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-16 13:20:32,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:20:32,279 INFO L93 Difference]: Finished difference Result 169 states and 243 transitions. [2023-12-16 13:20:32,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-16 13:20:32,280 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 3 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 120 [2023-12-16 13:20:32,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:20:32,282 INFO L225 Difference]: With dead ends: 169 [2023-12-16 13:20:32,283 INFO L226 Difference]: Without dead ends: 121 [2023-12-16 13:20:32,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=297, Invalid=695, Unknown=0, NotChecked=0, Total=992 [2023-12-16 13:20:32,284 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 179 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 13:20:32,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 169 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 13:20:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-16 13:20:32,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 59. [2023-12-16 13:20:32,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 13:20:32,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2023-12-16 13:20:32,312 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 120 [2023-12-16 13:20:32,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:20:32,312 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2023-12-16 13:20:32,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 3 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-16 13:20:32,313 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2023-12-16 13:20:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 13:20:32,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:20:32,314 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:20:32,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 13:20:32,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:20:32,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:20:32,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:20:32,516 INFO L85 PathProgramCache]: Analyzing trace with hash -997317013, now seen corresponding path program 1 times [2023-12-16 13:20:32,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:20:32,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942787585] [2023-12-16 13:20:32,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:20:32,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:20:32,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:20:32,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:20:32,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 13:20:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:20:32,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 13:20:32,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:20:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 295 proven. 18 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2023-12-16 13:20:38,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:21:00,812 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 90 proven. 21 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2023-12-16 13:21:00,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:21:00,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942787585] [2023-12-16 13:21:00,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942787585] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 13:21:00,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 13:21:00,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2023-12-16 13:21:00,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846587105] [2023-12-16 13:21:00,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 13:21:00,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-16 13:21:00,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:21:00,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-16 13:21:00,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2023-12-16 13:21:00,816 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand has 22 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 22 states have internal predecessors, (45), 3 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-16 13:21:02,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:21:02,905 INFO L93 Difference]: Finished difference Result 104 states and 136 transitions. [2023-12-16 13:21:02,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-16 13:21:02,907 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 22 states have internal predecessors, (45), 3 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 120 [2023-12-16 13:21:02,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:21:02,908 INFO L225 Difference]: With dead ends: 104 [2023-12-16 13:21:02,908 INFO L226 Difference]: Without dead ends: 102 [2023-12-16 13:21:02,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=382, Invalid=1024, Unknown=0, NotChecked=0, Total=1406 [2023-12-16 13:21:02,910 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 156 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 13:21:02,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 309 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 13:21:02,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-16 13:21:02,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 89. [2023-12-16 13:21:02,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 55 states have (on average 1.2) internal successors, (66), 56 states have internal predecessors, (66), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 13:21:02,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 122 transitions. [2023-12-16 13:21:02,919 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 122 transitions. Word has length 120 [2023-12-16 13:21:02,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:21:02,920 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 122 transitions. [2023-12-16 13:21:02,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 22 states have internal predecessors, (45), 3 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-16 13:21:02,920 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 122 transitions. [2023-12-16 13:21:02,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 13:21:02,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:21:02,921 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:21:02,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 13:21:03,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:21:03,122 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:21:03,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:21:03,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1054634897, now seen corresponding path program 1 times [2023-12-16 13:21:03,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:21:03,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918745330] [2023-12-16 13:21:03,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:21:03,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:21:03,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:21:03,127 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:21:03,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 13:21:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:21:03,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 13:21:03,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:21:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 13:21:30,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 13:21:30,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:21:30,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918745330] [2023-12-16 13:21:30,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918745330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 13:21:30,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 13:21:30,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 13:21:30,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925605447] [2023-12-16 13:21:30,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 13:21:30,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 13:21:30,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:21:30,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 13:21:30,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-16 13:21:30,030 INFO L87 Difference]: Start difference. First operand 89 states and 122 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 13:21:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:21:30,277 INFO L93 Difference]: Finished difference Result 100 states and 132 transitions. [2023-12-16 13:21:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 13:21:30,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 120 [2023-12-16 13:21:30,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:21:30,279 INFO L225 Difference]: With dead ends: 100 [2023-12-16 13:21:30,279 INFO L226 Difference]: Without dead ends: 98 [2023-12-16 13:21:30,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-12-16 13:21:30,280 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 89 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 13:21:30,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 285 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 13:21:30,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-16 13:21:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 89. [2023-12-16 13:21:30,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 55 states have (on average 1.2) internal successors, (66), 56 states have internal predecessors, (66), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 13:21:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 122 transitions. [2023-12-16 13:21:30,289 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 122 transitions. Word has length 120 [2023-12-16 13:21:30,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:21:30,290 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 122 transitions. [2023-12-16 13:21:30,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 13:21:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 122 transitions. [2023-12-16 13:21:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 13:21:30,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:21:30,291 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:21:30,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 13:21:30,499 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 [2023-12-16 13:21:30,500 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:21:30,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:21:30,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1054575315, now seen corresponding path program 1 times [2023-12-16 13:21:30,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:21:30,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293282963] [2023-12-16 13:21:30,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:21:30,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:21:30,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:21:30,503 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) [2023-12-16 13:21:30,505 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 [2023-12-16 13:21:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:21:30,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 13:21:30,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:21:30,638 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-12-16 13:21:30,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 13:21:30,737 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 13:21:30,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 13:21:30,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293282963] [2023-12-16 13:21:30,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293282963] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 13:21:30,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 13:21:30,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-16 13:21:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734454513] [2023-12-16 13:21:30,739 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 13:21:30,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 13:21:30,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 13:21:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 13:21:30,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 13:21:30,741 INFO L87 Difference]: Start difference. First operand 89 states and 122 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 13:21:31,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 13:21:31,062 INFO L93 Difference]: Finished difference Result 269 states and 364 transitions. [2023-12-16 13:21:31,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 13:21:31,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 120 [2023-12-16 13:21:31,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 13:21:31,064 INFO L225 Difference]: With dead ends: 269 [2023-12-16 13:21:31,064 INFO L226 Difference]: Without dead ends: 181 [2023-12-16 13:21:31,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2023-12-16 13:21:31,066 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 149 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 13:21:31,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 239 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 13:21:31,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-16 13:21:31,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 87. [2023-12-16 13:21:31,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 53 states have (on average 1.150943396226415) internal successors, (61), 54 states have internal predecessors, (61), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 13:21:31,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 117 transitions. [2023-12-16 13:21:31,079 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 117 transitions. Word has length 120 [2023-12-16 13:21:31,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 13:21:31,080 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 117 transitions. [2023-12-16 13:21:31,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 13:21:31,080 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 117 transitions. [2023-12-16 13:21:31,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 13:21:31,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 13:21:31,081 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 13:21:31,099 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 [2023-12-16 13:21:31,284 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 [2023-12-16 13:21:31,284 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 13:21:31,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 13:21:31,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1148650595, now seen corresponding path program 1 times [2023-12-16 13:21:31,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 13:21:31,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501717848] [2023-12-16 13:21:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 13:21:31,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:21:31,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 13:21:31,286 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 13:21:31,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 13:21:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 13:21:31,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 13:21:31,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 13:21:36,125 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 295 proven. 18 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2023-12-16 13:21:36,126 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 13:21:42,360 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 13:21:42,368 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:21:42,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 13:21:42,383 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 13:21:42,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 13:21:42,564 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 122 with TraceHistMax 20,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-28-2-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. [2023-12-16 13:21:42,568 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 13:21:42,572 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 13:21:42,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:21:42 BoogieIcfgContainer [2023-12-16 13:21:42,574 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 13:21:42,575 INFO L158 Benchmark]: Toolchain (without parser) took 72713.80ms. Allocated memory was 280.0MB in the beginning and 910.2MB in the end (delta: 630.2MB). Free memory was 235.9MB in the beginning and 765.4MB in the end (delta: -529.4MB). Peak memory consumption was 546.4MB. Max. memory is 8.0GB. [2023-12-16 13:21:42,575 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 232.8MB. Free memory was 182.3MB in the beginning and 182.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 13:21:42,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.36ms. Allocated memory is still 280.0MB. Free memory was 235.9MB in the beginning and 222.5MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-16 13:21:42,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.33ms. Allocated memory is still 280.0MB. Free memory was 222.5MB in the beginning and 220.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 13:21:42,575 INFO L158 Benchmark]: Boogie Preprocessor took 57.85ms. Allocated memory is still 280.0MB. Free memory was 220.2MB in the beginning and 217.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 13:21:42,576 INFO L158 Benchmark]: RCFGBuilder took 394.41ms. Allocated memory is still 280.0MB. Free memory was 217.6MB in the beginning and 198.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-16 13:21:42,576 INFO L158 Benchmark]: TraceAbstraction took 72046.52ms. Allocated memory was 280.0MB in the beginning and 910.2MB in the end (delta: 630.2MB). Free memory was 197.9MB in the beginning and 765.4MB in the end (delta: -567.4MB). Peak memory consumption was 508.7MB. Max. memory is 8.0GB. [2023-12-16 13:21:42,577 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 232.8MB. Free memory was 182.3MB in the beginning and 182.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 184.36ms. Allocated memory is still 280.0MB. Free memory was 235.9MB in the beginning and 222.5MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.33ms. Allocated memory is still 280.0MB. Free memory was 222.5MB in the beginning and 220.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.85ms. Allocated memory is still 280.0MB. Free memory was 220.2MB in the beginning and 217.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 394.41ms. Allocated memory is still 280.0MB. Free memory was 217.6MB in the beginning and 198.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 72046.52ms. Allocated memory was 280.0MB in the beginning and 910.2MB in the end (delta: 630.2MB). Free memory was 197.9MB in the beginning and 765.4MB in the end (delta: -567.4MB). Peak memory consumption was 508.7MB. 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 122 with TraceHistMax 20,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-28-2-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.0s, OverallIterations: 6, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 629 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 573 mSDsluCounter, 1074 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 715 mSDsCounter, 340 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1302 IncrementalHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 340 mSolverCounterUnsat, 359 mSDtfsCounter, 1302 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1002 GetRequests, 908 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=3, InterpolantAutomatonStates: 80, 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, 178 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 55.8s InterpolantComputationTime, 600 NumberOfCodeBlocks, 600 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 952 ConstructedInterpolants, 4 QuantifiedInterpolants, 6116 SizeOfPredicates, 58 NumberOfNonLiveVariables, 998 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 5978/6080 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