/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/array-multidimensional/add-3-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 18:55:13,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 18:55:13,176 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 18:55:13,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 18:55:13,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 18:55:13,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 18:55:13,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 18:55:13,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 18:55:13,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 18:55:13,208 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 18:55:13,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 18:55:13,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 18:55:13,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 18:55:13,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 18:55:13,210 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 18:55:13,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 18:55:13,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 18:55:13,211 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 18:55:13,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 18:55:13,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 18:55:13,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 18:55:13,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 18:55:13,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 18:55:13,213 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 18:55:13,213 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 18:55:13,213 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 18:55:13,213 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 18:55:13,213 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 18:55:13,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 18:55:13,213 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 18:55:13,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 18:55:13,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 18:55:13,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 18:55:13,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 18:55:13,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 18:55:13,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 18:55:13,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 18:55:13,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 18:55:13,215 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 18:55:13,215 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 18:55:13,215 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 18:55:13,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 18:55:13,216 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 18:55:13,216 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 18:55:13,216 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 18:55:13,216 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 18:55:13,216 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 18:55:13,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 18:55:13,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 18:55:13,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 18:55:13,406 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 18:55:13,407 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 18:55:13,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/add-3-n-u.c [2023-12-21 18:55:14,504 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 18:55:14,674 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 18:55:14,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/add-3-n-u.c [2023-12-21 18:55:14,680 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45df82412/4e5ead17c8e54a2f90e47df8b397d9fd/FLAG7854996c1 [2023-12-21 18:55:14,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45df82412/4e5ead17c8e54a2f90e47df8b397d9fd [2023-12-21 18:55:14,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 18:55:14,699 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 18:55:14,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 18:55:14,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 18:55:14,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 18:55:14,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63aa4ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14, skipping insertion in model container [2023-12-21 18:55:14,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,719 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 18:55:14,812 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/add-3-n-u.c[321,334] [2023-12-21 18:55:14,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 18:55:14,856 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 18:55:14,865 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/add-3-n-u.c[321,334] [2023-12-21 18:55:14,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 18:55:14,901 INFO L206 MainTranslator]: Completed translation [2023-12-21 18:55:14,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14 WrapperNode [2023-12-21 18:55:14,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 18:55:14,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 18:55:14,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 18:55:14,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 18:55:14,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,947 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 119 [2023-12-21 18:55:14,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 18:55:14,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 18:55:14,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 18:55:14,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 18:55:14,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,968 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-12-21 18:55:14,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,969 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 18:55:14,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 18:55:14,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 18:55:14,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 18:55:14,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (1/1) ... [2023-12-21 18:55:14,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 18:55:15,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 18:55:15,025 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) [2023-12-21 18:55:15,079 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 [2023-12-21 18:55:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 18:55:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 18:55:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-21 18:55:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-21 18:55:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-21 18:55:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-21 18:55:15,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-21 18:55:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-21 18:55:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-21 18:55:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-21 18:55:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 18:55:15,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 18:55:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 18:55:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-21 18:55:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-21 18:55:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-21 18:55:15,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-21 18:55:15,175 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 18:55:15,177 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 18:55:15,588 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 18:55:15,626 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 18:55:15,627 INFO L309 CfgBuilder]: Removed 9 assume(true) statements. [2023-12-21 18:55:15,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 06:55:15 BoogieIcfgContainer [2023-12-21 18:55:15,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 18:55:15,630 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 18:55:15,631 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 18:55:15,633 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 18:55:15,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 06:55:14" (1/3) ... [2023-12-21 18:55:15,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47aab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 06:55:15, skipping insertion in model container [2023-12-21 18:55:15,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:55:14" (2/3) ... [2023-12-21 18:55:15,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47aab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 06:55:15, skipping insertion in model container [2023-12-21 18:55:15,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 06:55:15" (3/3) ... [2023-12-21 18:55:15,638 INFO L112 eAbstractionObserver]: Analyzing ICFG add-3-n-u.c [2023-12-21 18:55:15,652 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 18:55:15,652 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 18:55:15,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 18:55:15,691 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;@567d89bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 18:55:15,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 18:55:15,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 23 states have internal predecessors, (42), 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) [2023-12-21 18:55:15,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-21 18:55:15,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:15,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:15,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:15,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:15,703 INFO L85 PathProgramCache]: Analyzing trace with hash 237570459, now seen corresponding path program 1 times [2023-12-21 18:55:15,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:15,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712670478] [2023-12-21 18:55:15,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:55:15,713 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 [2023-12-21 18:55:15,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:15,715 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) [2023-12-21 18:55:15,716 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 [2023-12-21 18:55:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:55:15,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 18:55:15,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:15,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:55:15,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:55:15,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:15,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712670478] [2023-12-21 18:55:15,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712670478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:55:15,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:55:15,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 18:55:15,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972429037] [2023-12-21 18:55:15,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:55:15,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 18:55:15,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:15,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 18:55:15,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 18:55:15,870 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 23 states have internal predecessors, (42), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-12-21 18:55:15,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:15,889 INFO L93 Difference]: Finished difference Result 47 states and 83 transitions. [2023-12-21 18:55:15,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 18:55:15,891 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2023-12-21 18:55:15,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:15,896 INFO L225 Difference]: With dead ends: 47 [2023-12-21 18:55:15,897 INFO L226 Difference]: Without dead ends: 22 [2023-12-21 18:55:15,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 18:55:15,901 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:15,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 18:55:15,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-21 18:55:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-12-21 18:55:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 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) [2023-12-21 18:55:15,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2023-12-21 18:55:15,924 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 10 [2023-12-21 18:55:15,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:15,924 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2023-12-21 18:55:15,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-12-21 18:55:15,925 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-12-21 18:55:15,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-21 18:55:15,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:15,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:15,942 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 [2023-12-21 18:55:16,131 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 [2023-12-21 18:55:16,132 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:16,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:16,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1373370499, now seen corresponding path program 1 times [2023-12-21 18:55:16,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:16,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160928457] [2023-12-21 18:55:16,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:55:16,136 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 [2023-12-21 18:55:16,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:16,137 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) [2023-12-21 18:55:16,167 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 [2023-12-21 18:55:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:55:16,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 18:55:16,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:55:16,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:55:16,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:16,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160928457] [2023-12-21 18:55:16,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160928457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:55:16,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:55:16,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 18:55:16,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142797675] [2023-12-21 18:55:16,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:55:16,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 18:55:16,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:16,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 18:55:16,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 18:55:16,279 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-12-21 18:55:16,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:16,521 INFO L93 Difference]: Finished difference Result 43 states and 59 transitions. [2023-12-21 18:55:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 18:55:16,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2023-12-21 18:55:16,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:16,528 INFO L225 Difference]: With dead ends: 43 [2023-12-21 18:55:16,528 INFO L226 Difference]: Without dead ends: 27 [2023-12-21 18:55:16,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 18:55:16,529 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:16,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 42 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 18:55:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-12-21 18:55:16,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2023-12-21 18:55:16,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 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) [2023-12-21 18:55:16,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2023-12-21 18:55:16,537 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2023-12-21 18:55:16,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:16,537 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2023-12-21 18:55:16,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-12-21 18:55:16,537 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-12-21 18:55:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-21 18:55:16,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:16,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:16,542 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 [2023-12-21 18:55:16,741 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 [2023-12-21 18:55:16,742 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:16,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:16,742 INFO L85 PathProgramCache]: Analyzing trace with hash 84443277, now seen corresponding path program 1 times [2023-12-21 18:55:16,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:16,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945348394] [2023-12-21 18:55:16,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:55:16,743 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 [2023-12-21 18:55:16,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:16,744 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) [2023-12-21 18:55:16,761 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 [2023-12-21 18:55:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:55:16,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 18:55:16,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:55:16,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:55:16,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:16,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945348394] [2023-12-21 18:55:16,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945348394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:55:16,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:55:16,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 18:55:16,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377543661] [2023-12-21 18:55:16,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:55:16,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 18:55:16,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:16,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 18:55:16,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:55:16,874 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-12-21 18:55:17,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:17,217 INFO L93 Difference]: Finished difference Result 60 states and 83 transitions. [2023-12-21 18:55:17,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 18:55:17,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2023-12-21 18:55:17,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:17,218 INFO L225 Difference]: With dead ends: 60 [2023-12-21 18:55:17,218 INFO L226 Difference]: Without dead ends: 39 [2023-12-21 18:55:17,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:55:17,219 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 62 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:17,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 29 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 18:55:17,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-12-21 18:55:17,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26. [2023-12-21 18:55:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 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) [2023-12-21 18:55:17,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2023-12-21 18:55:17,224 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 13 [2023-12-21 18:55:17,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:17,225 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2023-12-21 18:55:17,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-12-21 18:55:17,225 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2023-12-21 18:55:17,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-21 18:55:17,225 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:17,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:17,230 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 [2023-12-21 18:55:17,429 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 [2023-12-21 18:55:17,430 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:17,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:17,430 INFO L85 PathProgramCache]: Analyzing trace with hash -426887717, now seen corresponding path program 1 times [2023-12-21 18:55:17,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:17,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662960203] [2023-12-21 18:55:17,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:55:17,431 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 [2023-12-21 18:55:17,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:17,432 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) [2023-12-21 18:55:17,434 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 [2023-12-21 18:55:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:55:17,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 18:55:17,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:17,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:55:17,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:55:17,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:17,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662960203] [2023-12-21 18:55:17,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662960203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:55:17,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:55:17,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 18:55:17,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642708144] [2023-12-21 18:55:17,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:55:17,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 18:55:17,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:17,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 18:55:17,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:55:17,533 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-12-21 18:55:17,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:17,809 INFO L93 Difference]: Finished difference Result 60 states and 80 transitions. [2023-12-21 18:55:17,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 18:55:17,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-12-21 18:55:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:17,810 INFO L225 Difference]: With dead ends: 60 [2023-12-21 18:55:17,810 INFO L226 Difference]: Without dead ends: 36 [2023-12-21 18:55:17,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:55:17,811 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 45 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:17,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 36 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 18:55:17,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-12-21 18:55:17,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2023-12-21 18:55:17,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 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) [2023-12-21 18:55:17,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2023-12-21 18:55:17,817 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 16 [2023-12-21 18:55:17,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:17,817 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2023-12-21 18:55:17,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-12-21 18:55:17,817 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2023-12-21 18:55:17,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-21 18:55:17,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:17,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:17,824 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 [2023-12-21 18:55:18,021 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 [2023-12-21 18:55:18,022 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:18,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:18,022 INFO L85 PathProgramCache]: Analyzing trace with hash 704489342, now seen corresponding path program 1 times [2023-12-21 18:55:18,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:18,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816515518] [2023-12-21 18:55:18,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:55:18,023 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 [2023-12-21 18:55:18,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:18,024 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) [2023-12-21 18:55:18,025 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 [2023-12-21 18:55:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:55:18,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 18:55:18,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:18,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:55:18,184 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:55:18,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 18:55:18,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:18,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [816515518] [2023-12-21 18:55:18,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [816515518] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:55:18,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:55:18,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-21 18:55:18,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703701787] [2023-12-21 18:55:18,256 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:55:18,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 18:55:18,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:18,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 18:55:18,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 18:55:18,257 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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) [2023-12-21 18:55:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:18,998 INFO L93 Difference]: Finished difference Result 80 states and 106 transitions. [2023-12-21 18:55:18,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 18:55:18,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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 17 [2023-12-21 18:55:18,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:18,999 INFO L225 Difference]: With dead ends: 80 [2023-12-21 18:55:18,999 INFO L226 Difference]: Without dead ends: 53 [2023-12-21 18:55:19,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-21 18:55:19,000 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 59 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:19,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 68 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 18:55:19,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-21 18:55:19,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2023-12-21 18:55:19,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 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) [2023-12-21 18:55:19,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2023-12-21 18:55:19,009 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 17 [2023-12-21 18:55:19,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:19,009 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2023-12-21 18:55:19,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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) [2023-12-21 18:55:19,009 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2023-12-21 18:55:19,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-21 18:55:19,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:19,010 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:19,018 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 [2023-12-21 18:55:19,211 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 [2023-12-21 18:55:19,212 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:19,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:19,212 INFO L85 PathProgramCache]: Analyzing trace with hash -5306725, now seen corresponding path program 2 times [2023-12-21 18:55:19,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:19,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390846218] [2023-12-21 18:55:19,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 18:55:19,213 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 [2023-12-21 18:55:19,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:19,214 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) [2023-12-21 18:55:19,215 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 [2023-12-21 18:55:19,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 18:55:19,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:55:19,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 18:55:19,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 18:55:19,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 18:55:19,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:19,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390846218] [2023-12-21 18:55:19,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390846218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 18:55:19,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 18:55:19,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 18:55:19,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730757496] [2023-12-21 18:55:19,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 18:55:19,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 18:55:19,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:19,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 18:55:19,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:55:19,371 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-12-21 18:55:19,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:19,757 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2023-12-21 18:55:19,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 18:55:19,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 20 [2023-12-21 18:55:19,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:19,766 INFO L225 Difference]: With dead ends: 104 [2023-12-21 18:55:19,766 INFO L226 Difference]: Without dead ends: 83 [2023-12-21 18:55:19,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 18:55:19,767 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 43 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:19,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 34 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 18:55:19,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-21 18:55:19,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 45. [2023-12-21 18:55:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 44 states have internal predecessors, (56), 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) [2023-12-21 18:55:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2023-12-21 18:55:19,799 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 20 [2023-12-21 18:55:19,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:19,799 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2023-12-21 18:55:19,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-12-21 18:55:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2023-12-21 18:55:19,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-21 18:55:19,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:19,800 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:19,806 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 [2023-12-21 18:55:20,000 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 [2023-12-21 18:55:20,001 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:20,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:20,001 INFO L85 PathProgramCache]: Analyzing trace with hash -364596391, now seen corresponding path program 1 times [2023-12-21 18:55:20,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:20,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763240331] [2023-12-21 18:55:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 18:55:20,002 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 [2023-12-21 18:55:20,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:20,003 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) [2023-12-21 18:55:20,011 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 [2023-12-21 18:55:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 18:55:20,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 18:55:20,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:20,282 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 18:55:20,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:55:20,448 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 18:55:20,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:20,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763240331] [2023-12-21 18:55:20,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763240331] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:55:20,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:55:20,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-21 18:55:20,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718239182] [2023-12-21 18:55:20,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:55:20,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 18:55:20,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:20,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 18:55:20,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-12-21 18:55:20,450 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 14 states, 14 states have (on average 2.5) internal successors, (35), 13 states have internal predecessors, (35), 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) [2023-12-21 18:55:22,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:22,249 INFO L93 Difference]: Finished difference Result 137 states and 174 transitions. [2023-12-21 18:55:22,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 18:55:22,250 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 13 states have internal predecessors, (35), 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 30 [2023-12-21 18:55:22,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:22,251 INFO L225 Difference]: With dead ends: 137 [2023-12-21 18:55:22,251 INFO L226 Difference]: Without dead ends: 94 [2023-12-21 18:55:22,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2023-12-21 18:55:22,252 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 233 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:22,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 161 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 18:55:22,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-21 18:55:22,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 75. [2023-12-21 18:55:22,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 74 states have internal predecessors, (92), 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) [2023-12-21 18:55:22,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2023-12-21 18:55:22,267 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 30 [2023-12-21 18:55:22,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:22,267 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2023-12-21 18:55:22,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 13 states have internal predecessors, (35), 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) [2023-12-21 18:55:22,267 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2023-12-21 18:55:22,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-21 18:55:22,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:22,268 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:22,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-21 18:55:22,474 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 [2023-12-21 18:55:22,475 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:22,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:22,476 INFO L85 PathProgramCache]: Analyzing trace with hash -2131532679, now seen corresponding path program 2 times [2023-12-21 18:55:22,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:22,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9525371] [2023-12-21 18:55:22,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 18:55:22,476 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 [2023-12-21 18:55:22,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:22,487 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) [2023-12-21 18:55:22,489 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 [2023-12-21 18:55:22,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 18:55:22,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:55:22,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 18:55:22,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:23,059 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-21 18:55:23,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:55:23,540 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-21 18:55:23,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:23,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9525371] [2023-12-21 18:55:23,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9525371] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:55:23,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:55:23,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-21 18:55:23,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668583534] [2023-12-21 18:55:23,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:55:23,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 18:55:23,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:23,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 18:55:23,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-12-21 18:55:23,542 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 25 states have internal predecessors, (47), 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) [2023-12-21 18:55:28,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:28,895 INFO L93 Difference]: Finished difference Result 251 states and 312 transitions. [2023-12-21 18:55:28,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-21 18:55:28,896 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 25 states have internal predecessors, (47), 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 42 [2023-12-21 18:55:28,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:28,897 INFO L225 Difference]: With dead ends: 251 [2023-12-21 18:55:28,897 INFO L226 Difference]: Without dead ends: 178 [2023-12-21 18:55:28,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=479, Invalid=853, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 18:55:28,898 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 726 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:28,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 544 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-21 18:55:28,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-21 18:55:28,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 135. [2023-12-21 18:55:28,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.2238805970149254) internal successors, (164), 134 states have internal predecessors, (164), 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) [2023-12-21 18:55:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 164 transitions. [2023-12-21 18:55:28,916 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 164 transitions. Word has length 42 [2023-12-21 18:55:28,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:28,916 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 164 transitions. [2023-12-21 18:55:28,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 25 states have internal predecessors, (47), 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) [2023-12-21 18:55:28,916 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 164 transitions. [2023-12-21 18:55:28,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-21 18:55:28,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:28,917 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:28,935 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 [2023-12-21 18:55:29,117 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 [2023-12-21 18:55:29,118 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:29,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:29,118 INFO L85 PathProgramCache]: Analyzing trace with hash -146886983, now seen corresponding path program 3 times [2023-12-21 18:55:29,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:29,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611268221] [2023-12-21 18:55:29,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 18:55:29,119 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 [2023-12-21 18:55:29,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:29,120 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) [2023-12-21 18:55:29,141 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 [2023-12-21 18:55:29,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-21 18:55:29,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:55:29,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 18:55:29,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:29,518 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2023-12-21 18:55:29,519 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:55:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2023-12-21 18:55:29,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:29,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611268221] [2023-12-21 18:55:29,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611268221] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:55:29,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:55:29,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-21 18:55:29,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331726904] [2023-12-21 18:55:29,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:55:29,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 18:55:29,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:29,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 18:55:29,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 18:55:29,659 INFO L87 Difference]: Start difference. First operand 135 states and 164 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 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) [2023-12-21 18:55:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:30,311 INFO L93 Difference]: Finished difference Result 631 states and 773 transitions. [2023-12-21 18:55:30,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 18:55:30,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 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 66 [2023-12-21 18:55:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:30,314 INFO L225 Difference]: With dead ends: 631 [2023-12-21 18:55:30,314 INFO L226 Difference]: Without dead ends: 526 [2023-12-21 18:55:30,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-21 18:55:30,315 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 205 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:30,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 82 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 18:55:30,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-21 18:55:30,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 303. [2023-12-21 18:55:30,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.1390728476821192) internal successors, (344), 302 states have internal predecessors, (344), 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) [2023-12-21 18:55:30,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 344 transitions. [2023-12-21 18:55:30,363 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 344 transitions. Word has length 66 [2023-12-21 18:55:30,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:30,364 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 344 transitions. [2023-12-21 18:55:30,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 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) [2023-12-21 18:55:30,364 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 344 transitions. [2023-12-21 18:55:30,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-12-21 18:55:30,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:30,367 INFO L195 NwaCegarLoop]: trace histogram [88, 88, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:30,373 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 [2023-12-21 18:55:30,569 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 [2023-12-21 18:55:30,569 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:30,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:30,570 INFO L85 PathProgramCache]: Analyzing trace with hash 696093805, now seen corresponding path program 4 times [2023-12-21 18:55:30,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:30,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341754953] [2023-12-21 18:55:30,571 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-21 18:55:30,571 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 [2023-12-21 18:55:30,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:30,572 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) [2023-12-21 18:55:30,578 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 [2023-12-21 18:55:32,188 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-21 18:55:32,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 18:55:32,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 1275 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-21 18:55:32,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 18:55:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 8472 backedges. 1598 proven. 253 refuted. 0 times theorem prover too weak. 6621 trivial. 0 not checked. [2023-12-21 18:55:32,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 18:55:34,754 INFO L134 CoverageAnalysis]: Checked inductivity of 8472 backedges. 1598 proven. 253 refuted. 0 times theorem prover too weak. 6621 trivial. 0 not checked. [2023-12-21 18:55:34,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 18:55:34,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341754953] [2023-12-21 18:55:34,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341754953] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 18:55:34,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 18:55:34,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 49 [2023-12-21 18:55:34,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742997546] [2023-12-21 18:55:34,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 18:55:34,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-21 18:55:34,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 18:55:34,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-21 18:55:34,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2023-12-21 18:55:34,757 INFO L87 Difference]: Start difference. First operand 303 states and 344 transitions. Second operand has 50 states, 50 states have (on average 1.5) internal successors, (75), 49 states have internal predecessors, (75), 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) [2023-12-21 18:55:55,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 18:55:55,342 INFO L93 Difference]: Finished difference Result 958 states and 1235 transitions. [2023-12-21 18:55:55,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-21 18:55:55,342 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 1.5) internal successors, (75), 49 states have internal predecessors, (75), 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 234 [2023-12-21 18:55:55,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 18:55:55,344 INFO L225 Difference]: With dead ends: 958 [2023-12-21 18:55:55,344 INFO L226 Difference]: Without dead ends: 658 [2023-12-21 18:55:55,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1823, Invalid=3433, Unknown=0, NotChecked=0, Total=5256 [2023-12-21 18:55:55,349 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 2611 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 1309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2611 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 3796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-12-21 18:55:55,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2611 Valid, 1947 Invalid, 3796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1309 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2023-12-21 18:55:55,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-12-21 18:55:55,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 567. [2023-12-21 18:55:55,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 566 states have (on average 1.11660777385159) internal successors, (632), 566 states have internal predecessors, (632), 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) [2023-12-21 18:55:55,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 632 transitions. [2023-12-21 18:55:55,413 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 632 transitions. Word has length 234 [2023-12-21 18:55:55,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 18:55:55,413 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 632 transitions. [2023-12-21 18:55:55,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 1.5) internal successors, (75), 49 states have internal predecessors, (75), 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) [2023-12-21 18:55:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 632 transitions. [2023-12-21 18:55:55,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-21 18:55:55,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 18:55:55,417 INFO L195 NwaCegarLoop]: trace histogram [184, 184, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 18:55:55,467 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 (11)] Forceful destruction successful, exit code 0 [2023-12-21 18:55:55,632 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 [2023-12-21 18:55:55,632 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 18:55:55,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 18:55:55,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1417875859, now seen corresponding path program 5 times [2023-12-21 18:55:55,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 18:55:55,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852077499] [2023-12-21 18:55:55,634 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-21 18:55:55,634 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 [2023-12-21 18:55:55,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 18:55:55,635 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) [2023-12-21 18:55:55,637 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 [2023-12-21 19:00:00,740 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 77 check-sat command(s) [2023-12-21 19:00:00,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:00:01,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 2523 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-21 19:00:01,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:00:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 35256 backedges. 11072 proven. 1081 refuted. 0 times theorem prover too weak. 23103 trivial. 0 not checked. [2023-12-21 19:00:02,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:00:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 35256 backedges. 8863 proven. 3290 refuted. 0 times theorem prover too weak. 23103 trivial. 0 not checked. [2023-12-21 19:00:09,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:00:09,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852077499] [2023-12-21 19:00:09,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852077499] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:00:09,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:00:09,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 97 [2023-12-21 19:00:09,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475488943] [2023-12-21 19:00:09,616 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:00:09,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2023-12-21 19:00:09,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:00:09,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2023-12-21 19:00:09,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2497, Invalid=7009, Unknown=0, NotChecked=0, Total=9506 [2023-12-21 19:00:09,621 INFO L87 Difference]: Start difference. First operand 567 states and 632 transitions. Second operand has 98 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 97 states have internal predecessors, (135), 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) [2023-12-21 19:01:45,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:01:45,042 INFO L93 Difference]: Finished difference Result 1846 states and 2363 transitions. [2023-12-21 19:01:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-12-21 19:01:45,043 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 97 states have internal predecessors, (135), 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 426 [2023-12-21 19:01:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:01:45,054 INFO L225 Difference]: With dead ends: 1846 [2023-12-21 19:01:45,054 INFO L226 Difference]: Without dead ends: 1282 [2023-12-21 19:01:45,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 898 GetRequests, 754 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3431 ImplicationChecksByTransitivity, 55.1s TimeCoverageRelationStatistics Valid=7156, Invalid=14014, Unknown=0, NotChecked=0, Total=21170 [2023-12-21 19:01:45,059 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 9229 mSDsluCounter, 7163 mSDsCounter, 0 mSdLazyCounter, 9591 mSolverCounterSat, 4764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9229 SdHoareTripleChecker+Valid, 7323 SdHoareTripleChecker+Invalid, 14355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4764 IncrementalHoareTripleChecker+Valid, 9591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2023-12-21 19:01:45,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9229 Valid, 7323 Invalid, 14355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4764 Valid, 9591 Invalid, 0 Unknown, 0 Unchecked, 47.0s Time] [2023-12-21 19:01:45,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2023-12-21 19:01:45,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1095. [2023-12-21 19:01:45,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1094 states have (on average 1.1042047531992687) internal successors, (1208), 1094 states have internal predecessors, (1208), 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) [2023-12-21 19:01:45,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1208 transitions. [2023-12-21 19:01:45,208 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1208 transitions. Word has length 426 [2023-12-21 19:01:45,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:01:45,210 INFO L495 AbstractCegarLoop]: Abstraction has 1095 states and 1208 transitions. [2023-12-21 19:01:45,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 97 states have internal predecessors, (135), 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) [2023-12-21 19:01:45,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1208 transitions. [2023-12-21 19:01:45,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2023-12-21 19:01:45,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:01:45,222 INFO L195 NwaCegarLoop]: trace histogram [376, 376, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:01:45,369 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 (12)] Forceful destruction successful, exit code 0 [2023-12-21 19:01:45,448 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 [2023-12-21 19:01:45,448 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:01:45,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:01:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1144762989, now seen corresponding path program 6 times [2023-12-21 19:01:45,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:01:45,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698896398] [2023-12-21 19:01:45,451 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-21 19:01:45,452 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 [2023-12-21 19:01:45,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:01:45,453 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) [2023-12-21 19:01:45,454 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 Received shutdown request... [2023-12-21 19:09:58,191 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 19:09:58,208 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 19:09:59,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-21 19:09:59,392 WARN L435 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)] Forcibly destroying the process [2023-12-21 19:09:59,482 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-21 19:09:59,484 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 19:09:59,484 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 [2023-12-21 19:09:59,485 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 811 with TraceHistMax 376,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1698896398] and IpTcStrategyModuleCvc4 [1533500954]. [2023-12-21 19:09:59,488 INFO L445 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1, 1, 1] [2023-12-21 19:09:59,493 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 (13)] Forceful destruction successful, exit code 137 [2023-12-21 19:09:59,498 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 19:09:59,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 07:09:59 BoogieIcfgContainer [2023-12-21 19:09:59,499 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 19:09:59,500 INFO L158 Benchmark]: Toolchain (without parser) took 884801.03ms. Allocated memory was 225.4MB in the beginning and 277.9MB in the end (delta: 52.4MB). Free memory was 163.5MB in the beginning and 94.4MB in the end (delta: 69.1MB). Peak memory consumption was 122.1MB. Max. memory is 8.0GB. [2023-12-21 19:09:59,500 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 225.4MB. Free memory is still 176.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 19:09:59,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.78ms. Allocated memory is still 225.4MB. Free memory was 163.2MB in the beginning and 151.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-21 19:09:59,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.09ms. Allocated memory is still 225.4MB. Free memory was 151.0MB in the beginning and 149.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-21 19:09:59,500 INFO L158 Benchmark]: Boogie Preprocessor took 38.30ms. Allocated memory is still 225.4MB. Free memory was 149.4MB in the beginning and 146.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 19:09:59,500 INFO L158 Benchmark]: RCFGBuilder took 641.41ms. Allocated memory was 225.4MB in the beginning and 277.9MB in the end (delta: 52.4MB). Free memory was 146.8MB in the beginning and 229.8MB in the end (delta: -83.0MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. [2023-12-21 19:09:59,500 INFO L158 Benchmark]: TraceAbstraction took 883869.59ms. Allocated memory is still 277.9MB. Free memory was 229.3MB in the beginning and 94.4MB in the end (delta: 134.9MB). Peak memory consumption was 134.9MB. Max. memory is 8.0GB. [2023-12-21 19:09:59,501 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 225.4MB. Free memory is still 176.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 201.78ms. Allocated memory is still 225.4MB. Free memory was 163.2MB in the beginning and 151.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.09ms. Allocated memory is still 225.4MB. Free memory was 151.0MB in the beginning and 149.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.30ms. Allocated memory is still 225.4MB. Free memory was 149.4MB in the beginning and 146.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 641.41ms. Allocated memory was 225.4MB in the beginning and 277.9MB in the end (delta: 52.4MB). Free memory was 146.8MB in the beginning and 229.8MB in the end (delta: -83.0MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. * TraceAbstraction took 883869.59ms. Allocated memory is still 277.9MB. Free memory was 229.3MB in the beginning and 94.4MB in the end (delta: 134.9MB). Peak memory consumption was 134.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 7]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 7). Cancelled while NwaCegarLoop was analyzing trace of length 811 with TraceHistMax 376,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1698896398] and IpTcStrategyModuleCvc4 [1533500954]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 883.8s, OverallIterations: 12, TraceHistogramMax: 376, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 125.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13219 SdHoareTripleChecker+Valid, 70.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13219 mSDsluCounter, 10296 SdHoareTripleChecker+Invalid, 62.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9790 mSDsCounter, 6607 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13106 IncrementalHoareTripleChecker+Invalid, 19713 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6607 mSolverCounterUnsat, 506 mSDtfsCounter, 13106 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1773 GetRequests, 1483 SyntacticMatches, 0 SemanticMatches, 290 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4520 ImplicationChecksByTransitivity, 64.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1095occurred in iteration=11, InterpolantAutomatonStates: 216, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 634 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 247.0s SatisfiabilityAnalysisTime, 13.0s InterpolantComputationTime, 884 NumberOfCodeBlocks, 824 NumberOfCodeBlocksAsserted, 89 NumberOfCheckSat, 1682 ConstructedInterpolants, 0 QuantifiedInterpolants, 3537 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4588 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 83762/88773 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown