/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/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 09:51:58,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 09:51:58,123 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 09:51:58,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 09:51:58,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 09:51:58,148 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 09:51:58,149 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 09:51:58,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 09:51:58,149 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 09:51:58,150 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 09:51:58,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 09:51:58,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 09:51:58,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 09:51:58,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 09:51:58,151 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 09:51:58,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 09:51:58,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 09:51:58,151 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 09:51:58,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 09:51:58,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 09:51:58,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 09:51:58,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 09:51:58,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 09:51:58,158 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 09:51:58,158 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 09:51:58,158 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 09:51:58,158 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 09:51:58,159 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 09:51:58,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 09:51:58,159 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 09:51:58,160 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 09:51:58,160 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 09:51:58,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 09:51:58,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 09:51:58,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:51:58,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 09:51:58,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 09:51:58,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 09:51:58,161 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 09:51:58,161 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 09:51:58,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 09:51:58,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 09:51:58,162 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 09:51:58,162 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 09:51:58,162 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 09:51:58,162 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 09:51:58,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 09:51:58,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 09:51:58,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 09:51:58,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 09:51:58,376 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 09:51:58,376 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 09:51:58,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2023-12-25 09:51:59,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 09:51:59,712 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 09:51:59,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2023-12-25 09:51:59,722 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eaa8f8ff/772212f914694e0d85100451d945e922/FLAG9c658dd73 [2023-12-25 09:51:59,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eaa8f8ff/772212f914694e0d85100451d945e922 [2023-12-25 09:51:59,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 09:51:59,736 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 09:51:59,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 09:51:59,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 09:51:59,755 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 09:51:59,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:51:59" (1/1) ... [2023-12-25 09:51:59,756 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d28588f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:51:59, skipping insertion in model container [2023-12-25 09:51:59,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:51:59" (1/1) ... [2023-12-25 09:51:59,806 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 09:52:00,024 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10021,10034] [2023-12-25 09:52:00,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:52:00,105 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 09:52:00,172 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10021,10034] [2023-12-25 09:52:00,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:52:00,220 INFO L206 MainTranslator]: Completed translation [2023-12-25 09:52:00,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00 WrapperNode [2023-12-25 09:52:00,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 09:52:00,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 09:52:00,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 09:52:00,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 09:52:00,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,281 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 990 [2023-12-25 09:52:00,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 09:52:00,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 09:52:00,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 09:52:00,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 09:52:00,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,300 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,315 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]. [2023-12-25 09:52:00,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 09:52:00,374 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 09:52:00,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 09:52:00,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 09:52:00,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (1/1) ... [2023-12-25 09:52:00,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:52:00,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 09:52:00,412 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) [2023-12-25 09:52:00,419 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 [2023-12-25 09:52:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 09:52:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 09:52:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 09:52:00,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 09:52:00,572 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 09:52:00,574 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 09:52:01,239 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 09:52:01,280 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 09:52:01,281 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 09:52:01,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:52:01 BoogieIcfgContainer [2023-12-25 09:52:01,281 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 09:52:01,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 09:52:01,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 09:52:01,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 09:52:01,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 09:51:59" (1/3) ... [2023-12-25 09:52:01,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb80585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:52:01, skipping insertion in model container [2023-12-25 09:52:01,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:52:00" (2/3) ... [2023-12-25 09:52:01,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb80585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:52:01, skipping insertion in model container [2023-12-25 09:52:01,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:52:01" (3/3) ... [2023-12-25 09:52:01,288 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2023-12-25 09:52:01,301 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 09:52:01,302 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 09:52:01,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 09:52:01,343 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;@52e339f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 09:52:01,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 09:52:01,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 246 states have (on average 1.7317073170731707) internal successors, (426), 247 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:01,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 09:52:01,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:01,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:01,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:01,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:01,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1145068229, now seen corresponding path program 1 times [2023-12-25 09:52:01,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:01,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145287763] [2023-12-25 09:52:01,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:01,381 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 [2023-12-25 09:52:01,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:01,383 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) [2023-12-25 09:52:01,416 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 [2023-12-25 09:52:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:01,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 09:52:01,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:01,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:01,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:01,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145287763] [2023-12-25 09:52:01,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145287763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:01,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:01,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:52:01,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798271461] [2023-12-25 09:52:01,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:01,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:52:01,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:01,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:52:01,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:52:01,979 INFO L87 Difference]: Start difference. First operand has 248 states, 246 states have (on average 1.7317073170731707) internal successors, (426), 247 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:02,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:02,425 INFO L93 Difference]: Finished difference Result 1114 states and 1847 transitions. [2023-12-25 09:52:02,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:52:02,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-25 09:52:02,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:02,445 INFO L225 Difference]: With dead ends: 1114 [2023-12-25 09:52:02,446 INFO L226 Difference]: Without dead ends: 947 [2023-12-25 09:52:02,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:52:02,451 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 2409 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:02,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2409 Valid, 2418 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:52:02,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2023-12-25 09:52:02,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 937. [2023-12-25 09:52:02,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 936 states have (on average 1.5224358974358974) internal successors, (1425), 936 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:02,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1425 transitions. [2023-12-25 09:52:02,525 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1425 transitions. Word has length 95 [2023-12-25 09:52:02,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:02,526 INFO L495 AbstractCegarLoop]: Abstraction has 937 states and 1425 transitions. [2023-12-25 09:52:02,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1425 transitions. [2023-12-25 09:52:02,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 09:52:02,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:02,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:02,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 09:52:02,737 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 [2023-12-25 09:52:02,738 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:02,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:02,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1367012959, now seen corresponding path program 1 times [2023-12-25 09:52:02,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:02,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705651414] [2023-12-25 09:52:02,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:02,740 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 [2023-12-25 09:52:02,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:02,741 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) [2023-12-25 09:52:02,753 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 [2023-12-25 09:52:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:02,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:52:02,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:03,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:03,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:03,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705651414] [2023-12-25 09:52:03,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705651414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:03,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:03,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:52:03,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102332246] [2023-12-25 09:52:03,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:03,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:52:03,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:03,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:52:03,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:52:03,326 INFO L87 Difference]: Start difference. First operand 937 states and 1425 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:03,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:03,634 INFO L93 Difference]: Finished difference Result 2390 states and 3701 transitions. [2023-12-25 09:52:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:52:03,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-25 09:52:03,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:03,640 INFO L225 Difference]: With dead ends: 2390 [2023-12-25 09:52:03,640 INFO L226 Difference]: Without dead ends: 1539 [2023-12-25 09:52:03,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:52:03,643 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 829 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:03,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 342 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:52:03,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2023-12-25 09:52:03,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1537. [2023-12-25 09:52:03,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1536 states have (on average 1.541015625) internal successors, (2367), 1536 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:03,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2367 transitions. [2023-12-25 09:52:03,676 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2367 transitions. Word has length 96 [2023-12-25 09:52:03,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:03,677 INFO L495 AbstractCegarLoop]: Abstraction has 1537 states and 2367 transitions. [2023-12-25 09:52:03,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:03,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2367 transitions. [2023-12-25 09:52:03,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 09:52:03,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:03,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:03,686 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 [2023-12-25 09:52:03,884 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 [2023-12-25 09:52:03,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:03,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:03,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1098695664, now seen corresponding path program 1 times [2023-12-25 09:52:03,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:03,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312764905] [2023-12-25 09:52:03,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:03,888 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 [2023-12-25 09:52:03,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:03,897 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) [2023-12-25 09:52:03,898 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 [2023-12-25 09:52:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:03,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:52:03,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:04,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:04,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:04,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312764905] [2023-12-25 09:52:04,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312764905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:04,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:04,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:52:04,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907733274] [2023-12-25 09:52:04,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:04,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:52:04,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:52:04,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:52:04,432 INFO L87 Difference]: Start difference. First operand 1537 states and 2367 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:04,733 INFO L93 Difference]: Finished difference Result 4103 states and 6401 transitions. [2023-12-25 09:52:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:52:04,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-25 09:52:04,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:04,742 INFO L225 Difference]: With dead ends: 4103 [2023-12-25 09:52:04,742 INFO L226 Difference]: Without dead ends: 2682 [2023-12-25 09:52:04,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:52:04,748 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1287 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:04,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 344 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:52:04,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2023-12-25 09:52:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2680. [2023-12-25 09:52:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2679 states have (on average 1.5513251213139232) internal successors, (4156), 2679 states have internal predecessors, (4156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:04,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 4156 transitions. [2023-12-25 09:52:04,791 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 4156 transitions. Word has length 96 [2023-12-25 09:52:04,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:04,793 INFO L495 AbstractCegarLoop]: Abstraction has 2680 states and 4156 transitions. [2023-12-25 09:52:04,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 4156 transitions. [2023-12-25 09:52:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 09:52:04,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:04,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:04,803 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 [2023-12-25 09:52:04,997 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 [2023-12-25 09:52:04,998 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:04,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:04,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1832603566, now seen corresponding path program 1 times [2023-12-25 09:52:04,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:04,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063941024] [2023-12-25 09:52:04,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:04,999 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 [2023-12-25 09:52:04,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:05,000 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) [2023-12-25 09:52:05,030 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 [2023-12-25 09:52:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:05,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:52:05,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:05,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:05,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:05,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063941024] [2023-12-25 09:52:05,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063941024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:05,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:05,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:52:05,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862072516] [2023-12-25 09:52:05,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:05,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:52:05,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:05,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:52:05,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:52:05,401 INFO L87 Difference]: Start difference. First operand 2680 states and 4156 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:05,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:05,703 INFO L93 Difference]: Finished difference Result 7348 states and 11510 transitions. [2023-12-25 09:52:05,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:52:05,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-25 09:52:05,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:05,718 INFO L225 Difference]: With dead ends: 7348 [2023-12-25 09:52:05,718 INFO L226 Difference]: Without dead ends: 4862 [2023-12-25 09:52:05,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:52:05,722 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 955 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:05,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 357 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:52:05,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4862 states. [2023-12-25 09:52:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4862 to 4860. [2023-12-25 09:52:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4860 states, 4859 states have (on average 1.558345338547026) internal successors, (7572), 4859 states have internal predecessors, (7572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:05,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4860 states to 4860 states and 7572 transitions. [2023-12-25 09:52:05,825 INFO L78 Accepts]: Start accepts. Automaton has 4860 states and 7572 transitions. Word has length 96 [2023-12-25 09:52:05,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:05,826 INFO L495 AbstractCegarLoop]: Abstraction has 4860 states and 7572 transitions. [2023-12-25 09:52:05,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:05,826 INFO L276 IsEmpty]: Start isEmpty. Operand 4860 states and 7572 transitions. [2023-12-25 09:52:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 09:52:05,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:05,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:05,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-25 09:52:06,031 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 [2023-12-25 09:52:06,031 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:06,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:06,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1973999425, now seen corresponding path program 1 times [2023-12-25 09:52:06,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:06,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809264099] [2023-12-25 09:52:06,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:06,032 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 [2023-12-25 09:52:06,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:06,033 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) [2023-12-25 09:52:06,064 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 [2023-12-25 09:52:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:06,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:52:06,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:06,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:06,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:06,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809264099] [2023-12-25 09:52:06,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809264099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:06,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:06,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:52:06,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459810718] [2023-12-25 09:52:06,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:06,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:52:06,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:06,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:52:06,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:52:06,508 INFO L87 Difference]: Start difference. First operand 4860 states and 7572 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:06,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:06,842 INFO L93 Difference]: Finished difference Result 13945 states and 21837 transitions. [2023-12-25 09:52:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:52:06,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-25 09:52:06,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:06,869 INFO L225 Difference]: With dead ends: 13945 [2023-12-25 09:52:06,869 INFO L226 Difference]: Without dead ends: 9238 [2023-12-25 09:52:06,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:52:06,879 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1243 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:06,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 346 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:52:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9238 states. [2023-12-25 09:52:06,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9238 to 9236. [2023-12-25 09:52:07,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9236 states, 9235 states have (on average 1.5586356253383866) internal successors, (14394), 9235 states have internal predecessors, (14394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:07,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9236 states to 9236 states and 14394 transitions. [2023-12-25 09:52:07,024 INFO L78 Accepts]: Start accepts. Automaton has 9236 states and 14394 transitions. Word has length 96 [2023-12-25 09:52:07,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:07,025 INFO L495 AbstractCegarLoop]: Abstraction has 9236 states and 14394 transitions. [2023-12-25 09:52:07,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:07,026 INFO L276 IsEmpty]: Start isEmpty. Operand 9236 states and 14394 transitions. [2023-12-25 09:52:07,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 09:52:07,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:07,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:07,091 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 [2023-12-25 09:52:07,277 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 [2023-12-25 09:52:07,278 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:07,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:07,279 INFO L85 PathProgramCache]: Analyzing trace with hash -420614514, now seen corresponding path program 1 times [2023-12-25 09:52:07,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:07,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247285447] [2023-12-25 09:52:07,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:07,280 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 [2023-12-25 09:52:07,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:07,281 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) [2023-12-25 09:52:07,312 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 [2023-12-25 09:52:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:07,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:52:07,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:07,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:07,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:07,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247285447] [2023-12-25 09:52:07,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247285447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:07,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:07,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:52:07,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085796647] [2023-12-25 09:52:07,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:07,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:52:07,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:07,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:52:07,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:52:07,619 INFO L87 Difference]: Start difference. First operand 9236 states and 14394 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:07,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:07,982 INFO L93 Difference]: Finished difference Result 27315 states and 42677 transitions. [2023-12-25 09:52:07,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:52:07,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-25 09:52:07,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:08,032 INFO L225 Difference]: With dead ends: 27315 [2023-12-25 09:52:08,032 INFO L226 Difference]: Without dead ends: 18142 [2023-12-25 09:52:08,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:52:08,050 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1038 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:08,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 342 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:52:08,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18142 states. [2023-12-25 09:52:08,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18142 to 18140. [2023-12-25 09:52:08,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18140 states, 18139 states have (on average 1.5541650587132698) internal successors, (28191), 18139 states have internal predecessors, (28191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:08,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18140 states to 18140 states and 28191 transitions. [2023-12-25 09:52:08,363 INFO L78 Accepts]: Start accepts. Automaton has 18140 states and 28191 transitions. Word has length 96 [2023-12-25 09:52:08,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:08,363 INFO L495 AbstractCegarLoop]: Abstraction has 18140 states and 28191 transitions. [2023-12-25 09:52:08,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:08,363 INFO L276 IsEmpty]: Start isEmpty. Operand 18140 states and 28191 transitions. [2023-12-25 09:52:08,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 09:52:08,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:08,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:08,378 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 [2023-12-25 09:52:08,578 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 [2023-12-25 09:52:08,578 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:08,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:08,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1014717205, now seen corresponding path program 1 times [2023-12-25 09:52:08,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:08,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055671365] [2023-12-25 09:52:08,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:08,580 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 [2023-12-25 09:52:08,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:08,581 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:52:08,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 09:52:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:08,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:52:08,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:08,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:08,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:08,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:08,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055671365] [2023-12-25 09:52:08,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055671365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:08,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:08,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:52:08,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420957718] [2023-12-25 09:52:08,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:08,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:52:08,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:08,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:52:08,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:52:08,902 INFO L87 Difference]: Start difference. First operand 18140 states and 28191 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:09,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:09,400 INFO L93 Difference]: Finished difference Result 51445 states and 80070 transitions. [2023-12-25 09:52:09,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:52:09,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-25 09:52:09,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:09,463 INFO L225 Difference]: With dead ends: 51445 [2023-12-25 09:52:09,464 INFO L226 Difference]: Without dead ends: 33384 [2023-12-25 09:52:09,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:52:09,481 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 847 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:09,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 345 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:52:09,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33384 states. [2023-12-25 09:52:09,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33384 to 33382. [2023-12-25 09:52:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33382 states, 33381 states have (on average 1.551002067044127) internal successors, (51774), 33381 states have internal predecessors, (51774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:09,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33382 states to 33382 states and 51774 transitions. [2023-12-25 09:52:09,995 INFO L78 Accepts]: Start accepts. Automaton has 33382 states and 51774 transitions. Word has length 97 [2023-12-25 09:52:09,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:09,996 INFO L495 AbstractCegarLoop]: Abstraction has 33382 states and 51774 transitions. [2023-12-25 09:52:09,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:09,996 INFO L276 IsEmpty]: Start isEmpty. Operand 33382 states and 51774 transitions. [2023-12-25 09:52:10,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 09:52:10,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:10,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:10,014 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 (8)] Ended with exit code 0 [2023-12-25 09:52:10,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:52:10,207 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:10,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:10,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2065707879, now seen corresponding path program 1 times [2023-12-25 09:52:10,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:10,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276514265] [2023-12-25 09:52:10,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:10,208 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 [2023-12-25 09:52:10,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:10,226 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-12-25 09:52:10,227 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 (9)] Waiting until timeout for monitored process [2023-12-25 09:52:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:10,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:52:10,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:11,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:11,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:11,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:11,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276514265] [2023-12-25 09:52:11,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276514265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:11,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:11,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:52:11,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541887942] [2023-12-25 09:52:11,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:11,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:52:11,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:11,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:52:11,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:52:11,113 INFO L87 Difference]: Start difference. First operand 33382 states and 51774 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:13,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:13,015 INFO L93 Difference]: Finished difference Result 77822 states and 120784 transitions. [2023-12-25 09:52:13,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:52:13,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-25 09:52:13,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:13,161 INFO L225 Difference]: With dead ends: 77822 [2023-12-25 09:52:13,162 INFO L226 Difference]: Without dead ends: 55836 [2023-12-25 09:52:13,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-25 09:52:13,199 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 2419 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:13,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2419 Valid, 1534 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:52:13,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55836 states. [2023-12-25 09:52:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55836 to 33650. [2023-12-25 09:52:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33650 states, 33649 states have (on average 1.5496448631460074) internal successors, (52144), 33649 states have internal predecessors, (52144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:13,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33650 states to 33650 states and 52144 transitions. [2023-12-25 09:52:13,857 INFO L78 Accepts]: Start accepts. Automaton has 33650 states and 52144 transitions. Word has length 97 [2023-12-25 09:52:13,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:13,858 INFO L495 AbstractCegarLoop]: Abstraction has 33650 states and 52144 transitions. [2023-12-25 09:52:13,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:13,858 INFO L276 IsEmpty]: Start isEmpty. Operand 33650 states and 52144 transitions. [2023-12-25 09:52:13,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 09:52:13,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:13,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:13,868 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 (9)] Ended with exit code 0 [2023-12-25 09:52:14,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 [2023-12-25 09:52:14,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:14,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2146854009, now seen corresponding path program 1 times [2023-12-25 09:52:14,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:14,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819240017] [2023-12-25 09:52:14,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:14,069 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 [2023-12-25 09:52:14,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:14,076 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:52:14,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 09:52:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:14,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:52:14,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:14,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:14,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:14,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:14,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819240017] [2023-12-25 09:52:14,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819240017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:14,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:14,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:52:14,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066074646] [2023-12-25 09:52:14,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:14,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:52:14,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:14,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:52:14,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:52:14,915 INFO L87 Difference]: Start difference. First operand 33650 states and 52144 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:16,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:16,799 INFO L93 Difference]: Finished difference Result 66434 states and 102966 transitions. [2023-12-25 09:52:16,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:52:16,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-25 09:52:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:16,871 INFO L225 Difference]: With dead ends: 66434 [2023-12-25 09:52:16,872 INFO L226 Difference]: Without dead ends: 50360 [2023-12-25 09:52:16,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-25 09:52:16,897 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 1946 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:16,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 1588 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:52:16,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50360 states. [2023-12-25 09:52:17,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50360 to 34162. [2023-12-25 09:52:17,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34162 states, 34161 states have (on average 1.5473200433242587) internal successors, (52858), 34161 states have internal predecessors, (52858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:17,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34162 states to 34162 states and 52858 transitions. [2023-12-25 09:52:17,586 INFO L78 Accepts]: Start accepts. Automaton has 34162 states and 52858 transitions. Word has length 97 [2023-12-25 09:52:17,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:17,586 INFO L495 AbstractCegarLoop]: Abstraction has 34162 states and 52858 transitions. [2023-12-25 09:52:17,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:17,586 INFO L276 IsEmpty]: Start isEmpty. Operand 34162 states and 52858 transitions. [2023-12-25 09:52:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 09:52:17,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:17,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:17,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 09:52:17,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:52:17,798 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:17,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:17,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1463315513, now seen corresponding path program 1 times [2023-12-25 09:52:17,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:17,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223032464] [2023-12-25 09:52:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:17,799 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 [2023-12-25 09:52:17,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:17,800 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2023-12-25 09:52:17,802 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 (11)] Waiting until timeout for monitored process [2023-12-25 09:52:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:17,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:52:17,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:18,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:18,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:18,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:18,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223032464] [2023-12-25 09:52:18,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223032464] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:18,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:18,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:52:18,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22417783] [2023-12-25 09:52:18,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:18,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:52:18,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:18,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:52:18,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:52:18,306 INFO L87 Difference]: Start difference. First operand 34162 states and 52858 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:19,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:19,825 INFO L93 Difference]: Finished difference Result 41136 states and 63557 transitions. [2023-12-25 09:52:19,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:52:19,831 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-25 09:52:19,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:19,872 INFO L225 Difference]: With dead ends: 41136 [2023-12-25 09:52:19,872 INFO L226 Difference]: Without dead ends: 37542 [2023-12-25 09:52:19,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:52:19,883 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1290 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:19,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 1486 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:52:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37542 states. [2023-12-25 09:52:20,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37542 to 34162. [2023-12-25 09:52:20,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34162 states, 34161 states have (on average 1.5472029507332923) internal successors, (52854), 34161 states have internal predecessors, (52854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:20,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34162 states to 34162 states and 52854 transitions. [2023-12-25 09:52:20,437 INFO L78 Accepts]: Start accepts. Automaton has 34162 states and 52854 transitions. Word has length 97 [2023-12-25 09:52:20,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:20,437 INFO L495 AbstractCegarLoop]: Abstraction has 34162 states and 52854 transitions. [2023-12-25 09:52:20,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:20,437 INFO L276 IsEmpty]: Start isEmpty. Operand 34162 states and 52854 transitions. [2023-12-25 09:52:20,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 09:52:20,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:20,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:20,450 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 (11)] Ended with exit code 0 [2023-12-25 09:52:20,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 [2023-12-25 09:52:20,650 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:20,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:20,651 INFO L85 PathProgramCache]: Analyzing trace with hash 310819751, now seen corresponding path program 1 times [2023-12-25 09:52:20,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:20,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165801089] [2023-12-25 09:52:20,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:20,651 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 [2023-12-25 09:52:20,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:20,652 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2023-12-25 09:52:20,654 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 (12)] Waiting until timeout for monitored process [2023-12-25 09:52:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:20,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:52:20,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:21,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:21,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:21,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165801089] [2023-12-25 09:52:21,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165801089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:21,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:21,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:52:21,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385646148] [2023-12-25 09:52:21,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:21,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:52:21,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:21,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:52:21,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:52:21,283 INFO L87 Difference]: Start difference. First operand 34162 states and 52854 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:23,370 INFO L93 Difference]: Finished difference Result 59774 states and 92268 transitions. [2023-12-25 09:52:23,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 09:52:23,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-25 09:52:23,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:23,444 INFO L225 Difference]: With dead ends: 59774 [2023-12-25 09:52:23,444 INFO L226 Difference]: Without dead ends: 49884 [2023-12-25 09:52:23,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-25 09:52:23,463 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1896 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:23,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 1885 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-25 09:52:23,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49884 states. [2023-12-25 09:52:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49884 to 34914. [2023-12-25 09:52:23,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34914 states, 34913 states have (on average 1.54481138830808) internal successors, (53934), 34913 states have internal predecessors, (53934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:23,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34914 states to 34914 states and 53934 transitions. [2023-12-25 09:52:23,955 INFO L78 Accepts]: Start accepts. Automaton has 34914 states and 53934 transitions. Word has length 97 [2023-12-25 09:52:23,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:23,955 INFO L495 AbstractCegarLoop]: Abstraction has 34914 states and 53934 transitions. [2023-12-25 09:52:23,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 34914 states and 53934 transitions. [2023-12-25 09:52:23,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 09:52:23,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:23,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:23,967 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 (12)] Ended with exit code 0 [2023-12-25 09:52:24,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 [2023-12-25 09:52:24,165 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:24,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash 261784391, now seen corresponding path program 1 times [2023-12-25 09:52:24,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:24,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35041835] [2023-12-25 09:52:24,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:24,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:52:24,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:24,168 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2023-12-25 09:52:24,169 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 (13)] Waiting until timeout for monitored process [2023-12-25 09:52:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:24,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:52:24,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:24,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:24,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:24,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:24,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35041835] [2023-12-25 09:52:24,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35041835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:24,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:24,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:52:24,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282984094] [2023-12-25 09:52:24,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:24,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:52:24,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:24,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:52:24,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:52:24,973 INFO L87 Difference]: Start difference. First operand 34914 states and 53934 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:27,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:27,051 INFO L93 Difference]: Finished difference Result 92319 states and 142780 transitions. [2023-12-25 09:52:27,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:52:27,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-25 09:52:27,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:27,151 INFO L225 Difference]: With dead ends: 92319 [2023-12-25 09:52:27,152 INFO L226 Difference]: Without dead ends: 64395 [2023-12-25 09:52:27,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-25 09:52:27,191 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 1859 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:27,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 1658 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 09:52:27,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64395 states. [2023-12-25 09:52:27,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64395 to 35563. [2023-12-25 09:52:27,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35563 states, 35562 states have (on average 1.5404645408019797) internal successors, (54782), 35562 states have internal predecessors, (54782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:27,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35563 states to 35563 states and 54782 transitions. [2023-12-25 09:52:27,824 INFO L78 Accepts]: Start accepts. Automaton has 35563 states and 54782 transitions. Word has length 97 [2023-12-25 09:52:27,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:27,824 INFO L495 AbstractCegarLoop]: Abstraction has 35563 states and 54782 transitions. [2023-12-25 09:52:27,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:27,825 INFO L276 IsEmpty]: Start isEmpty. Operand 35563 states and 54782 transitions. [2023-12-25 09:52:27,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 09:52:27,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:27,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:27,835 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 (13)] Ended with exit code 0 [2023-12-25 09:52:28,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 [2023-12-25 09:52:28,035 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:28,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:28,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1902325647, now seen corresponding path program 1 times [2023-12-25 09:52:28,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:28,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627849103] [2023-12-25 09:52:28,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:28,036 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 [2023-12-25 09:52:28,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:28,037 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2023-12-25 09:52:28,071 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 (14)] Waiting until timeout for monitored process [2023-12-25 09:52:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:28,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:52:28,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:28,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:28,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:28,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:28,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627849103] [2023-12-25 09:52:28,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627849103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:28,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:28,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:52:28,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390658982] [2023-12-25 09:52:28,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:28,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:52:28,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:28,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:52:28,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:52:28,770 INFO L87 Difference]: Start difference. First operand 35563 states and 54782 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:30,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:30,743 INFO L93 Difference]: Finished difference Result 99099 states and 152945 transitions. [2023-12-25 09:52:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:52:30,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-25 09:52:30,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:30,831 INFO L225 Difference]: With dead ends: 99099 [2023-12-25 09:52:30,831 INFO L226 Difference]: Without dead ends: 65692 [2023-12-25 09:52:30,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-25 09:52:30,867 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 2142 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:30,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 1714 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 09:52:30,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65692 states. [2023-12-25 09:52:31,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65692 to 36298. [2023-12-25 09:52:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36298 states, 36297 states have (on average 1.5334876160564235) internal successors, (55661), 36297 states have internal predecessors, (55661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36298 states to 36298 states and 55661 transitions. [2023-12-25 09:52:31,501 INFO L78 Accepts]: Start accepts. Automaton has 36298 states and 55661 transitions. Word has length 98 [2023-12-25 09:52:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:31,501 INFO L495 AbstractCegarLoop]: Abstraction has 36298 states and 55661 transitions. [2023-12-25 09:52:31,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:31,502 INFO L276 IsEmpty]: Start isEmpty. Operand 36298 states and 55661 transitions. [2023-12-25 09:52:31,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 09:52:31,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:31,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:31,515 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 (14)] Forceful destruction successful, exit code 0 [2023-12-25 09:52:31,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 [2023-12-25 09:52:31,713 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:31,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:31,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1199034866, now seen corresponding path program 1 times [2023-12-25 09:52:31,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:31,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221139468] [2023-12-25 09:52:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:31,714 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 [2023-12-25 09:52:31,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:31,716 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2023-12-25 09:52:31,748 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 (15)] Waiting until timeout for monitored process [2023-12-25 09:52:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:31,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 09:52:31,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:33,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:33,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:33,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:33,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221139468] [2023-12-25 09:52:33,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221139468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:33,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:33,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:52:33,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883178675] [2023-12-25 09:52:33,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:33,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:52:33,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:33,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:52:33,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:52:33,064 INFO L87 Difference]: Start difference. First operand 36298 states and 55661 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:33,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:33,806 INFO L93 Difference]: Finished difference Result 197821 states and 305982 transitions. [2023-12-25 09:52:33,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:52:33,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-25 09:52:33,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:34,063 INFO L225 Difference]: With dead ends: 197821 [2023-12-25 09:52:34,063 INFO L226 Difference]: Without dead ends: 165499 [2023-12-25 09:52:34,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:52:34,099 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 1794 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:34,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1794 Valid, 1939 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:52:34,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165499 states. [2023-12-25 09:52:35,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165499 to 70757. [2023-12-25 09:52:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70757 states, 70756 states have (on average 1.529156537961445) internal successors, (108197), 70756 states have internal predecessors, (108197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:35,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70757 states to 70757 states and 108197 transitions. [2023-12-25 09:52:35,775 INFO L78 Accepts]: Start accepts. Automaton has 70757 states and 108197 transitions. Word has length 98 [2023-12-25 09:52:35,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:35,775 INFO L495 AbstractCegarLoop]: Abstraction has 70757 states and 108197 transitions. [2023-12-25 09:52:35,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:35,775 INFO L276 IsEmpty]: Start isEmpty. Operand 70757 states and 108197 transitions. [2023-12-25 09:52:35,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 09:52:35,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:35,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:35,809 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 (15)] Ended with exit code 0 [2023-12-25 09:52:36,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 [2023-12-25 09:52:36,010 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:36,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:36,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1809766353, now seen corresponding path program 1 times [2023-12-25 09:52:36,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:36,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903660557] [2023-12-25 09:52:36,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:36,011 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 [2023-12-25 09:52:36,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:36,012 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2023-12-25 09:52:36,013 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 (16)] Waiting until timeout for monitored process [2023-12-25 09:52:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:36,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:52:36,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:36,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:36,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:36,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903660557] [2023-12-25 09:52:36,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903660557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:36,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:36,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:52:36,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426072137] [2023-12-25 09:52:36,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:36,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:52:36,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:36,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:52:36,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:52:36,158 INFO L87 Difference]: Start difference. First operand 70757 states and 108197 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:36,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:36,743 INFO L93 Difference]: Finished difference Result 136807 states and 209350 transitions. [2023-12-25 09:52:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:52:36,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-25 09:52:36,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:36,961 INFO L225 Difference]: With dead ends: 136807 [2023-12-25 09:52:36,961 INFO L226 Difference]: Without dead ends: 136805 [2023-12-25 09:52:37,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:52:37,002 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 344 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:37,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1051 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:52:37,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136805 states. [2023-12-25 09:52:38,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136805 to 72165. [2023-12-25 09:52:38,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72165 states, 72164 states have (on average 1.5188321046505182) internal successors, (109605), 72164 states have internal predecessors, (109605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:38,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72165 states to 72165 states and 109605 transitions. [2023-12-25 09:52:38,452 INFO L78 Accepts]: Start accepts. Automaton has 72165 states and 109605 transitions. Word has length 99 [2023-12-25 09:52:38,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:38,452 INFO L495 AbstractCegarLoop]: Abstraction has 72165 states and 109605 transitions. [2023-12-25 09:52:38,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:38,452 INFO L276 IsEmpty]: Start isEmpty. Operand 72165 states and 109605 transitions. [2023-12-25 09:52:38,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 09:52:38,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:38,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:38,474 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 (16)] Ended with exit code 0 [2023-12-25 09:52:38,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 [2023-12-25 09:52:38,674 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:38,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:38,674 INFO L85 PathProgramCache]: Analyzing trace with hash 854350722, now seen corresponding path program 1 times [2023-12-25 09:52:38,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:38,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004836964] [2023-12-25 09:52:38,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:38,674 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 [2023-12-25 09:52:38,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:38,675 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2023-12-25 09:52:38,679 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 (17)] Waiting until timeout for monitored process [2023-12-25 09:52:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:38,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:52:38,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:38,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:38,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:38,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004836964] [2023-12-25 09:52:38,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004836964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:38,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:38,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:52:38,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545627701] [2023-12-25 09:52:38,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:38,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:52:38,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:38,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:52:38,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:52:38,806 INFO L87 Difference]: Start difference. First operand 72165 states and 109605 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:39,314 INFO L93 Difference]: Finished difference Result 128274 states and 195463 transitions. [2023-12-25 09:52:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:52:39,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-25 09:52:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:39,435 INFO L225 Difference]: With dead ends: 128274 [2023-12-25 09:52:39,435 INFO L226 Difference]: Without dead ends: 88712 [2023-12-25 09:52:39,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:52:39,468 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 220 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:39,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 672 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:52:39,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88712 states. [2023-12-25 09:52:40,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88712 to 88166. [2023-12-25 09:52:40,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88166 states, 88165 states have (on average 1.5060511540860886) internal successors, (132781), 88165 states have internal predecessors, (132781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:40,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88166 states to 88166 states and 132781 transitions. [2023-12-25 09:52:40,560 INFO L78 Accepts]: Start accepts. Automaton has 88166 states and 132781 transitions. Word has length 100 [2023-12-25 09:52:40,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:40,560 INFO L495 AbstractCegarLoop]: Abstraction has 88166 states and 132781 transitions. [2023-12-25 09:52:40,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:40,560 INFO L276 IsEmpty]: Start isEmpty. Operand 88166 states and 132781 transitions. [2023-12-25 09:52:40,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 09:52:40,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:40,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:40,577 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 (17)] Forceful destruction successful, exit code 0 [2023-12-25 09:52:40,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 [2023-12-25 09:52:40,777 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:40,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash 57937421, now seen corresponding path program 1 times [2023-12-25 09:52:40,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:40,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618061472] [2023-12-25 09:52:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:40,778 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 [2023-12-25 09:52:40,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:40,779 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-12-25 09:52:40,781 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 (18)] Waiting until timeout for monitored process [2023-12-25 09:52:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:41,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:52:41,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:41,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:41,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:41,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:41,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618061472] [2023-12-25 09:52:41,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618061472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:41,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:41,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:52:41,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588892076] [2023-12-25 09:52:41,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:41,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:52:41,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:41,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:52:41,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:52:41,232 INFO L87 Difference]: Start difference. First operand 88166 states and 132781 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:42,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:42,113 INFO L93 Difference]: Finished difference Result 243130 states and 366591 transitions. [2023-12-25 09:52:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:52:42,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-25 09:52:42,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:42,373 INFO L225 Difference]: With dead ends: 243130 [2023-12-25 09:52:42,373 INFO L226 Difference]: Without dead ends: 161304 [2023-12-25 09:52:42,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:52:42,421 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 234 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:42,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 846 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:52:42,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161304 states. [2023-12-25 09:52:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161304 to 161302. [2023-12-25 09:52:44,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161302 states, 161301 states have (on average 1.4980006323581379) internal successors, (241629), 161301 states have internal predecessors, (241629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:44,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161302 states to 161302 states and 241629 transitions. [2023-12-25 09:52:44,731 INFO L78 Accepts]: Start accepts. Automaton has 161302 states and 241629 transitions. Word has length 100 [2023-12-25 09:52:44,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:44,731 INFO L495 AbstractCegarLoop]: Abstraction has 161302 states and 241629 transitions. [2023-12-25 09:52:44,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:44,731 INFO L276 IsEmpty]: Start isEmpty. Operand 161302 states and 241629 transitions. [2023-12-25 09:52:44,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 09:52:44,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:44,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:44,748 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 (18)] Forceful destruction successful, exit code 0 [2023-12-25 09:52:44,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2023-12-25 09:52:44,947 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:44,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:44,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1918554367, now seen corresponding path program 1 times [2023-12-25 09:52:44,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:44,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276856989] [2023-12-25 09:52:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:44,948 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 [2023-12-25 09:52:44,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:44,950 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-12-25 09:52:44,950 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 (19)] Waiting until timeout for monitored process [2023-12-25 09:52:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:45,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:52:45,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:45,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:45,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:45,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276856989] [2023-12-25 09:52:45,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276856989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:45,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:45,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:52:45,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895148461] [2023-12-25 09:52:45,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:45,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:52:45,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:45,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:52:45,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:52:45,100 INFO L87 Difference]: Start difference. First operand 161302 states and 241629 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:46,113 INFO L93 Difference]: Finished difference Result 253311 states and 379332 transitions. [2023-12-25 09:52:46,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:52:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-25 09:52:46,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:46,636 INFO L225 Difference]: With dead ends: 253311 [2023-12-25 09:52:46,637 INFO L226 Difference]: Without dead ends: 180453 [2023-12-25 09:52:46,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:52:46,699 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 208 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:46,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 684 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:52:46,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180453 states. [2023-12-25 09:52:48,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180453 to 179191. [2023-12-25 09:52:48,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179191 states, 179190 states have (on average 1.4794463976784418) internal successors, (265102), 179190 states have internal predecessors, (265102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:49,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179191 states to 179191 states and 265102 transitions. [2023-12-25 09:52:49,423 INFO L78 Accepts]: Start accepts. Automaton has 179191 states and 265102 transitions. Word has length 100 [2023-12-25 09:52:49,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:49,423 INFO L495 AbstractCegarLoop]: Abstraction has 179191 states and 265102 transitions. [2023-12-25 09:52:49,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 179191 states and 265102 transitions. [2023-12-25 09:52:49,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 09:52:49,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:49,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:49,436 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 (19)] Forceful destruction successful, exit code 0 [2023-12-25 09:52:49,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 [2023-12-25 09:52:49,636 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:49,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:49,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1956830337, now seen corresponding path program 1 times [2023-12-25 09:52:49,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:49,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422836683] [2023-12-25 09:52:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:49,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:52:49,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:49,638 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-12-25 09:52:49,640 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 (20)] Waiting until timeout for monitored process [2023-12-25 09:52:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:49,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:52:49,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:49,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:49,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:49,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422836683] [2023-12-25 09:52:49,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422836683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:49,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:49,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:52:49,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033983316] [2023-12-25 09:52:49,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:49,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:52:49,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:49,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:52:49,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:52:49,779 INFO L87 Difference]: Start difference. First operand 179191 states and 265102 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:51,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:51,156 INFO L93 Difference]: Finished difference Result 418984 states and 620474 transitions. [2023-12-25 09:52:51,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:52:51,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-25 09:52:51,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:51,891 INFO L225 Difference]: With dead ends: 418984 [2023-12-25 09:52:51,891 INFO L226 Difference]: Without dead ends: 253314 [2023-12-25 09:52:51,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:52:51,969 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 245 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:51,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 665 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:52:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253314 states. [2023-12-25 09:52:54,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253314 to 176543. [2023-12-25 09:52:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176543 states, 176542 states have (on average 1.467633764203419) internal successors, (259099), 176542 states have internal predecessors, (259099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:55,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176543 states to 176543 states and 259099 transitions. [2023-12-25 09:52:55,150 INFO L78 Accepts]: Start accepts. Automaton has 176543 states and 259099 transitions. Word has length 100 [2023-12-25 09:52:55,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:55,150 INFO L495 AbstractCegarLoop]: Abstraction has 176543 states and 259099 transitions. [2023-12-25 09:52:55,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:55,150 INFO L276 IsEmpty]: Start isEmpty. Operand 176543 states and 259099 transitions. [2023-12-25 09:52:55,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 09:52:55,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:55,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:55,189 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 (20)] Ended with exit code 0 [2023-12-25 09:52:55,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2023-12-25 09:52:55,378 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:55,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:55,379 INFO L85 PathProgramCache]: Analyzing trace with hash 273380946, now seen corresponding path program 1 times [2023-12-25 09:52:55,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:55,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048322006] [2023-12-25 09:52:55,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:55,380 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 [2023-12-25 09:52:55,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:55,381 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-12-25 09:52:55,385 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 (21)] Waiting until timeout for monitored process [2023-12-25 09:52:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:55,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:52:55,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:55,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:55,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:55,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048322006] [2023-12-25 09:52:55,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048322006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:55,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:55,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:52:55,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229021070] [2023-12-25 09:52:55,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:55,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:52:55,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:55,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:52:55,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:52:55,588 INFO L87 Difference]: Start difference. First operand 176543 states and 259099 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:56,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:52:56,788 INFO L93 Difference]: Finished difference Result 233734 states and 342358 transitions. [2023-12-25 09:52:56,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:52:56,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-25 09:52:56,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:52:57,098 INFO L225 Difference]: With dead ends: 233734 [2023-12-25 09:52:57,098 INFO L226 Difference]: Without dead ends: 181516 [2023-12-25 09:52:57,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:52:57,155 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 199 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:52:57,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 653 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:52:57,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181516 states. [2023-12-25 09:52:58,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181516 to 165514. [2023-12-25 09:52:58,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165514 states, 165513 states have (on average 1.4484904509011376) internal successors, (239744), 165513 states have internal predecessors, (239744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165514 states to 165514 states and 239744 transitions. [2023-12-25 09:52:59,338 INFO L78 Accepts]: Start accepts. Automaton has 165514 states and 239744 transitions. Word has length 100 [2023-12-25 09:52:59,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:52:59,338 INFO L495 AbstractCegarLoop]: Abstraction has 165514 states and 239744 transitions. [2023-12-25 09:52:59,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:52:59,338 INFO L276 IsEmpty]: Start isEmpty. Operand 165514 states and 239744 transitions. [2023-12-25 09:52:59,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 09:52:59,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:52:59,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:52:59,356 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 (21)] Forceful destruction successful, exit code 0 [2023-12-25 09:52:59,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2023-12-25 09:52:59,556 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:52:59,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:52:59,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1171277279, now seen corresponding path program 1 times [2023-12-25 09:52:59,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:52:59,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256865666] [2023-12-25 09:52:59,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:52:59,558 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 [2023-12-25 09:52:59,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:52:59,559 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-25 09:52:59,561 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 (22)] Waiting until timeout for monitored process [2023-12-25 09:52:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:52:59,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:52:59,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:52:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:52:59,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:52:59,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:52:59,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256865666] [2023-12-25 09:52:59,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256865666] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:52:59,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:52:59,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:52:59,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722071548] [2023-12-25 09:52:59,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:52:59,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:52:59,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:52:59,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:52:59,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:52:59,745 INFO L87 Difference]: Start difference. First operand 165514 states and 239744 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:01,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:53:01,368 INFO L93 Difference]: Finished difference Result 340672 states and 493318 transitions. [2023-12-25 09:53:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:53:01,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-25 09:53:01,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:53:01,766 INFO L225 Difference]: With dead ends: 340672 [2023-12-25 09:53:01,766 INFO L226 Difference]: Without dead ends: 208814 [2023-12-25 09:53:01,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:53:01,842 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 224 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:53:01,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 766 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:53:01,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208814 states. [2023-12-25 09:53:04,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208814 to 207452. [2023-12-25 09:53:04,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207452 states, 207451 states have (on average 1.4263127196301777) internal successors, (295890), 207451 states have internal predecessors, (295890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:04,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207452 states to 207452 states and 295890 transitions. [2023-12-25 09:53:04,736 INFO L78 Accepts]: Start accepts. Automaton has 207452 states and 295890 transitions. Word has length 100 [2023-12-25 09:53:04,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:53:04,736 INFO L495 AbstractCegarLoop]: Abstraction has 207452 states and 295890 transitions. [2023-12-25 09:53:04,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:04,744 INFO L276 IsEmpty]: Start isEmpty. Operand 207452 states and 295890 transitions. [2023-12-25 09:53:04,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 09:53:04,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:53:04,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:53:04,788 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 (22)] Forceful destruction successful, exit code 0 [2023-12-25 09:53:04,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-25 09:53:04,985 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:53:04,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:53:04,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1216936070, now seen corresponding path program 1 times [2023-12-25 09:53:04,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:53:04,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490080294] [2023-12-25 09:53:04,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:53:04,986 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 [2023-12-25 09:53:04,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:53:04,987 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-12-25 09:53:04,989 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 (23)] Waiting until timeout for monitored process [2023-12-25 09:53:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:53:05,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:53:05,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:53:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:53:05,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:53:05,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:53:05,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490080294] [2023-12-25 09:53:05,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490080294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:53:05,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:53:05,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:53:05,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582164391] [2023-12-25 09:53:05,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:53:05,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:53:05,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:53:05,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:53:05,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:53:05,137 INFO L87 Difference]: Start difference. First operand 207452 states and 295890 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:06,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:53:06,913 INFO L93 Difference]: Finished difference Result 458185 states and 651749 transitions. [2023-12-25 09:53:06,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:53:06,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-25 09:53:06,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:53:07,356 INFO L225 Difference]: With dead ends: 458185 [2023-12-25 09:53:07,356 INFO L226 Difference]: Without dead ends: 264563 [2023-12-25 09:53:07,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:53:07,477 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 237 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:53:07,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 648 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:53:07,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264563 states. [2023-12-25 09:53:10,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264563 to 263129. [2023-12-25 09:53:10,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263129 states, 263128 states have (on average 1.3998624243714086) internal successors, (368343), 263128 states have internal predecessors, (368343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263129 states to 263129 states and 368343 transitions. [2023-12-25 09:53:10,942 INFO L78 Accepts]: Start accepts. Automaton has 263129 states and 368343 transitions. Word has length 101 [2023-12-25 09:53:10,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:53:10,942 INFO L495 AbstractCegarLoop]: Abstraction has 263129 states and 368343 transitions. [2023-12-25 09:53:10,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:10,943 INFO L276 IsEmpty]: Start isEmpty. Operand 263129 states and 368343 transitions. [2023-12-25 09:53:10,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 09:53:10,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:53:10,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:53:11,320 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 (23)] Ended with exit code 0 [2023-12-25 09:53:11,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2023-12-25 09:53:11,514 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:53:11,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:53:11,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1119239528, now seen corresponding path program 1 times [2023-12-25 09:53:11,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:53:11,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407623537] [2023-12-25 09:53:11,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:53:11,515 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 [2023-12-25 09:53:11,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:53:11,517 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-12-25 09:53:11,518 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 (24)] Waiting until timeout for monitored process [2023-12-25 09:53:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:53:11,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:53:11,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:53:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:53:11,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:53:11,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:53:11,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407623537] [2023-12-25 09:53:11,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407623537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:53:11,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:53:11,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:53:11,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563313664] [2023-12-25 09:53:11,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:53:11,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:53:11,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:53:11,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:53:11,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:53:11,812 INFO L87 Difference]: Start difference. First operand 263129 states and 368343 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:17,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:53:17,961 INFO L93 Difference]: Finished difference Result 1564983 states and 2186576 transitions. [2023-12-25 09:53:17,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:53:17,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-25 09:53:17,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:53:21,945 INFO L225 Difference]: With dead ends: 1564983 [2023-12-25 09:53:21,945 INFO L226 Difference]: Without dead ends: 1306309 [2023-12-25 09:53:22,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:53:22,271 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 2161 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:53:22,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 823 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:53:23,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306309 states. [2023-12-25 09:53:31,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306309 to 261843. [2023-12-25 09:53:32,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261843 states, 261842 states have (on average 1.389116337333201) internal successors, (363729), 261842 states have internal predecessors, (363729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:33,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261843 states to 261843 states and 363729 transitions. [2023-12-25 09:53:33,029 INFO L78 Accepts]: Start accepts. Automaton has 261843 states and 363729 transitions. Word has length 101 [2023-12-25 09:53:33,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:53:33,029 INFO L495 AbstractCegarLoop]: Abstraction has 261843 states and 363729 transitions. [2023-12-25 09:53:33,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 261843 states and 363729 transitions. [2023-12-25 09:53:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 09:53:33,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:53:33,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:53:33,045 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 (24)] Ended with exit code 0 [2023-12-25 09:53:33,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 [2023-12-25 09:53:33,244 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:53:33,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:53:33,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1946660443, now seen corresponding path program 1 times [2023-12-25 09:53:33,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:53:33,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071953599] [2023-12-25 09:53:33,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:53:33,245 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 [2023-12-25 09:53:33,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:53:33,247 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-12-25 09:53:33,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 09:53:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:53:33,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:53:33,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:53:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:53:33,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:53:33,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:53:33,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071953599] [2023-12-25 09:53:33,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071953599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:53:33,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:53:33,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:53:33,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786951463] [2023-12-25 09:53:33,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:53:33,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:53:33,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:53:33,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:53:33,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:53:33,508 INFO L87 Difference]: Start difference. First operand 261843 states and 363729 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:39,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:53:39,282 INFO L93 Difference]: Finished difference Result 1425366 states and 1975735 transitions. [2023-12-25 09:53:39,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:53:39,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-25 09:53:39,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:53:41,693 INFO L225 Difference]: With dead ends: 1425366 [2023-12-25 09:53:41,693 INFO L226 Difference]: Without dead ends: 1169322 [2023-12-25 09:53:42,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:53:42,328 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 1629 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:53:42,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 860 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:53:43,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169322 states. [2023-12-25 09:53:50,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169322 to 261620. [2023-12-25 09:53:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261620 states, 261619 states have (on average 1.3778395300035549) internal successors, (360469), 261619 states have internal predecessors, (360469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:51,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261620 states to 261620 states and 360469 transitions. [2023-12-25 09:53:51,544 INFO L78 Accepts]: Start accepts. Automaton has 261620 states and 360469 transitions. Word has length 101 [2023-12-25 09:53:51,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:53:51,544 INFO L495 AbstractCegarLoop]: Abstraction has 261620 states and 360469 transitions. [2023-12-25 09:53:51,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:51,544 INFO L276 IsEmpty]: Start isEmpty. Operand 261620 states and 360469 transitions. [2023-12-25 09:53:51,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 09:53:51,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:53:51,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:53:51,600 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 (25)] Forceful destruction successful, exit code 0 [2023-12-25 09:53:51,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 [2023-12-25 09:53:51,786 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:53:51,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:53:51,787 INFO L85 PathProgramCache]: Analyzing trace with hash 453802967, now seen corresponding path program 1 times [2023-12-25 09:53:51,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:53:51,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305992624] [2023-12-25 09:53:51,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:53:51,788 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 [2023-12-25 09:53:51,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:53:51,789 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-12-25 09:53:51,791 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 (26)] Waiting until timeout for monitored process [2023-12-25 09:53:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:53:51,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:53:51,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:53:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:53:52,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:53:52,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:53:52,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305992624] [2023-12-25 09:53:52,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305992624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:53:52,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:53:52,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:53:52,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863666083] [2023-12-25 09:53:52,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:53:52,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:53:52,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:53:52,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:53:52,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:53:52,084 INFO L87 Difference]: Start difference. First operand 261620 states and 360469 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:53:56,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:53:56,581 INFO L93 Difference]: Finished difference Result 1045325 states and 1435105 transitions. [2023-12-25 09:53:56,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:53:56,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-25 09:53:56,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:53:59,023 INFO L225 Difference]: With dead ends: 1045325 [2023-12-25 09:53:59,024 INFO L226 Difference]: Without dead ends: 792803 [2023-12-25 09:53:59,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:53:59,235 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 1910 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:53:59,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 672 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:53:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792803 states. [2023-12-25 09:54:05,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792803 to 478927. [2023-12-25 09:54:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478927 states, 478926 states have (on average 1.3636532574969829) internal successors, (653089), 478926 states have internal predecessors, (653089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:54:07,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478927 states to 478927 states and 653089 transitions. [2023-12-25 09:54:07,636 INFO L78 Accepts]: Start accepts. Automaton has 478927 states and 653089 transitions. Word has length 101 [2023-12-25 09:54:07,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:54:07,636 INFO L495 AbstractCegarLoop]: Abstraction has 478927 states and 653089 transitions. [2023-12-25 09:54:07,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:54:07,636 INFO L276 IsEmpty]: Start isEmpty. Operand 478927 states and 653089 transitions. [2023-12-25 09:54:07,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 09:54:07,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:54:07,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:54:07,655 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 (26)] Ended with exit code 0 [2023-12-25 09:54:07,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 [2023-12-25 09:54:07,855 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:54:07,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:54:07,855 INFO L85 PathProgramCache]: Analyzing trace with hash 649683811, now seen corresponding path program 1 times [2023-12-25 09:54:07,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:54:07,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422121119] [2023-12-25 09:54:07,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:54:07,856 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 [2023-12-25 09:54:07,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:54:07,857 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-25 09:54:07,890 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 (27)] Waiting until timeout for monitored process [2023-12-25 09:54:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:54:07,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:54:07,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:54:08,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:54:08,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:54:08,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:54:08,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422121119] [2023-12-25 09:54:08,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422121119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:54:08,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:54:08,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:54:08,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978193952] [2023-12-25 09:54:08,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:54:08,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:54:08,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:54:08,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:54:08,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:54:08,125 INFO L87 Difference]: Start difference. First operand 478927 states and 653089 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:54:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:54:17,251 INFO L93 Difference]: Finished difference Result 2371427 states and 3211095 transitions. [2023-12-25 09:54:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:54:17,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-25 09:54:17,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:54:22,660 INFO L225 Difference]: With dead ends: 2371427 [2023-12-25 09:54:22,660 INFO L226 Difference]: Without dead ends: 1904329 [2023-12-25 09:54:23,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:54:23,383 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1584 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:54:23,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 763 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 09:54:24,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904329 states. [2023-12-25 09:54:39,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904329 to 480275. [2023-12-25 09:54:40,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480275 states, 480274 states have (on average 1.352096928003598) internal successors, (649377), 480274 states have internal predecessors, (649377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:54:41,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480275 states to 480275 states and 649377 transitions. [2023-12-25 09:54:41,508 INFO L78 Accepts]: Start accepts. Automaton has 480275 states and 649377 transitions. Word has length 101 [2023-12-25 09:54:41,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:54:41,508 INFO L495 AbstractCegarLoop]: Abstraction has 480275 states and 649377 transitions. [2023-12-25 09:54:41,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:54:41,508 INFO L276 IsEmpty]: Start isEmpty. Operand 480275 states and 649377 transitions. [2023-12-25 09:54:41,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 09:54:41,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:54:41,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:54:41,527 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 (27)] Forceful destruction successful, exit code 0 [2023-12-25 09:54:41,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 [2023-12-25 09:54:41,727 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:54:41,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:54:41,728 INFO L85 PathProgramCache]: Analyzing trace with hash -637321135, now seen corresponding path program 1 times [2023-12-25 09:54:41,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:54:41,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032745457] [2023-12-25 09:54:41,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:54:41,728 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 [2023-12-25 09:54:41,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:54:41,729 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-25 09:54:41,731 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 (28)] Waiting until timeout for monitored process [2023-12-25 09:54:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:54:41,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:54:41,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:54:42,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:54:42,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:54:42,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:54:42,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032745457] [2023-12-25 09:54:42,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032745457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:54:42,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:54:42,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:54:42,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17655007] [2023-12-25 09:54:42,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:54:42,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:54:42,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:54:42,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:54:42,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:54:42,033 INFO L87 Difference]: Start difference. First operand 480275 states and 649377 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:54:48,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:54:48,669 INFO L93 Difference]: Finished difference Result 1705712 states and 2307759 transitions. [2023-12-25 09:54:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:54:48,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-25 09:54:48,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:54:51,693 INFO L225 Difference]: With dead ends: 1705712 [2023-12-25 09:54:51,698 INFO L226 Difference]: Without dead ends: 1239574 [2023-12-25 09:54:52,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:54:52,347 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1701 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:54:52,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 742 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 09:54:53,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239574 states. [2023-12-25 09:55:01,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239574 to 477187. [2023-12-25 09:55:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477187 states, 477186 states have (on average 1.3475982111797078) internal successors, (643055), 477186 states have internal predecessors, (643055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:55:03,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477187 states to 477187 states and 643055 transitions. [2023-12-25 09:55:03,969 INFO L78 Accepts]: Start accepts. Automaton has 477187 states and 643055 transitions. Word has length 101 [2023-12-25 09:55:03,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:55:03,970 INFO L495 AbstractCegarLoop]: Abstraction has 477187 states and 643055 transitions. [2023-12-25 09:55:03,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:55:03,970 INFO L276 IsEmpty]: Start isEmpty. Operand 477187 states and 643055 transitions. [2023-12-25 09:55:03,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 09:55:03,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:55:03,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:55:03,990 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 09:55:04,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 [2023-12-25 09:55:04,189 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:55:04,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:55:04,190 INFO L85 PathProgramCache]: Analyzing trace with hash -54631158, now seen corresponding path program 1 times [2023-12-25 09:55:04,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:55:04,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498643726] [2023-12-25 09:55:04,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:55:04,190 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 [2023-12-25 09:55:04,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:55:04,191 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-25 09:55:04,192 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 (29)] Waiting until timeout for monitored process [2023-12-25 09:55:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:55:04,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:55:04,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:55:04,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:55:04,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:55:04,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:55:04,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498643726] [2023-12-25 09:55:04,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498643726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:55:04,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:55:04,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:55:04,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040928818] [2023-12-25 09:55:04,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:55:04,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:55:04,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:55:04,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:55:04,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:55:04,446 INFO L87 Difference]: Start difference. First operand 477187 states and 643055 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:55:12,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:55:12,708 INFO L93 Difference]: Finished difference Result 2056951 states and 2765795 transitions. [2023-12-25 09:55:12,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:55:12,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-25 09:55:12,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:55:17,933 INFO L225 Difference]: With dead ends: 2056951 [2023-12-25 09:55:17,933 INFO L226 Difference]: Without dead ends: 1591109 [2023-12-25 09:55:18,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:55:18,676 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 1574 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:55:18,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 654 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:55:19,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591109 states. [2023-12-25 09:55:31,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591109 to 474689. [2023-12-25 09:55:31,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474689 states, 474688 states have (on average 1.3373268336254551) internal successors, (634813), 474688 states have internal predecessors, (634813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:55:32,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474689 states to 474689 states and 634813 transitions. [2023-12-25 09:55:32,894 INFO L78 Accepts]: Start accepts. Automaton has 474689 states and 634813 transitions. Word has length 102 [2023-12-25 09:55:32,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:55:32,895 INFO L495 AbstractCegarLoop]: Abstraction has 474689 states and 634813 transitions. [2023-12-25 09:55:32,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:55:32,895 INFO L276 IsEmpty]: Start isEmpty. Operand 474689 states and 634813 transitions. [2023-12-25 09:55:32,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 09:55:32,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:55:32,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:55:32,918 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 (29)] Ended with exit code 0 [2023-12-25 09:55:33,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 [2023-12-25 09:55:33,117 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:55:33,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:55:33,118 INFO L85 PathProgramCache]: Analyzing trace with hash -136844409, now seen corresponding path program 1 times [2023-12-25 09:55:33,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:55:33,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538880081] [2023-12-25 09:55:33,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:55:33,119 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 [2023-12-25 09:55:33,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:55:33,120 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-25 09:55:33,121 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 (30)] Waiting until timeout for monitored process [2023-12-25 09:55:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:55:33,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 09:55:33,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:55:34,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:55:34,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:55:34,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:55:34,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538880081] [2023-12-25 09:55:34,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538880081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:55:34,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:55:34,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:55:34,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410253534] [2023-12-25 09:55:34,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:55:34,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:55:34,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:55:34,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:55:34,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:55:34,422 INFO L87 Difference]: Start difference. First operand 474689 states and 634813 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:55:38,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:55:38,921 INFO L93 Difference]: Finished difference Result 1299036 states and 1756172 transitions. [2023-12-25 09:55:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:55:38,922 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-25 09:55:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:55:42,754 INFO L225 Difference]: With dead ends: 1299036 [2023-12-25 09:55:42,755 INFO L226 Difference]: Without dead ends: 1145266 [2023-12-25 09:55:43,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:55:43,696 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 1782 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:55:43,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1782 Valid, 1705 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:55:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145266 states. [2023-12-25 09:55:53,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145266 to 600901. [2023-12-25 09:55:53,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600901 states, 600900 states have (on average 1.337076052587785) internal successors, (803449), 600900 states have internal predecessors, (803449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:55:56,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600901 states to 600901 states and 803449 transitions. [2023-12-25 09:55:56,369 INFO L78 Accepts]: Start accepts. Automaton has 600901 states and 803449 transitions. Word has length 103 [2023-12-25 09:55:56,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:55:56,369 INFO L495 AbstractCegarLoop]: Abstraction has 600901 states and 803449 transitions. [2023-12-25 09:55:56,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:55:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 600901 states and 803449 transitions. [2023-12-25 09:55:56,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 09:55:56,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:55:56,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:55:56,395 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 (30)] Forceful destruction successful, exit code 0 [2023-12-25 09:55:56,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 [2023-12-25 09:55:56,593 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:55:56,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:55:56,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1047760721, now seen corresponding path program 1 times [2023-12-25 09:55:56,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:55:56,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989921159] [2023-12-25 09:55:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:55:56,594 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 [2023-12-25 09:55:56,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:55:56,596 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-25 09:55:56,628 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 (31)] Waiting until timeout for monitored process [2023-12-25 09:55:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:55:56,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:55:56,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:55:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:55:56,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:55:56,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:55:56,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989921159] [2023-12-25 09:55:56,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989921159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:55:56,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:55:56,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:55:56,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165517839] [2023-12-25 09:55:56,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:55:56,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:55:56,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:55:56,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:55:56,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:55:56,722 INFO L87 Difference]: Start difference. First operand 600901 states and 803449 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:56:02,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:56:02,563 INFO L93 Difference]: Finished difference Result 1687873 states and 2268561 transitions. [2023-12-25 09:56:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:56:02,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-25 09:56:02,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:56:06,693 INFO L225 Difference]: With dead ends: 1687873 [2023-12-25 09:56:06,693 INFO L226 Difference]: Without dead ends: 1106223 [2023-12-25 09:56:07,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:56:07,228 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 171 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:56:07,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 706 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:56:08,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106223 states. [2023-12-25 09:56:19,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106223 to 1069309. [2023-12-25 09:56:19,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069309 states, 1069308 states have (on average 1.332095149386332) internal successors, (1424420), 1069308 states have internal predecessors, (1424420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:56:25,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069309 states to 1069309 states and 1424420 transitions. [2023-12-25 09:56:25,018 INFO L78 Accepts]: Start accepts. Automaton has 1069309 states and 1424420 transitions. Word has length 103 [2023-12-25 09:56:25,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:56:25,018 INFO L495 AbstractCegarLoop]: Abstraction has 1069309 states and 1424420 transitions. [2023-12-25 09:56:25,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:56:25,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1069309 states and 1424420 transitions. [2023-12-25 09:56:25,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 09:56:25,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:56:25,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:56:25,042 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 09:56:25,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-25 09:56:25,243 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:56:25,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:56:25,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1969485932, now seen corresponding path program 1 times [2023-12-25 09:56:25,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:56:25,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046993738] [2023-12-25 09:56:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:56:25,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:56:25,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:56:25,245 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-25 09:56:25,314 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 (32)] Waiting until timeout for monitored process [2023-12-25 09:56:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:56:25,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 09:56:25,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:56:26,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:56:26,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:56:26,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:56:26,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046993738] [2023-12-25 09:56:26,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046993738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:56:26,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:56:26,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:56:26,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465547499] [2023-12-25 09:56:26,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:56:26,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:56:26,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:56:26,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:56:26,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:56:26,559 INFO L87 Difference]: Start difference. First operand 1069309 states and 1424420 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)