/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/combinations/Problem05_label40+token_ring.04.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:22:20,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:22:20,088 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:22:20,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:22:20,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:22:20,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:22:20,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:22:20,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:22:20,121 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:22:20,121 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:22:20,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:22:20,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:22:20,122 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:22:20,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:22:20,123 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:22:20,123 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:22:20,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:22:20,129 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:22:20,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:22:20,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:22:20,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:22:20,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:22:20,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:22:20,134 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:22:20,135 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:22:20,135 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:22:20,135 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:22:20,135 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:22:20,135 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:22:20,135 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:22:20,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:22:20,136 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:22:20,137 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:22:20,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:22:20,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:22:20,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:22:20,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:22:20,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:22:20,137 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:22:20,137 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:22:20,138 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:22:20,138 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:22:20,138 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:22:20,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:22:20,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:22:20,138 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:22:20,139 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:22:20,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:22:20,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:22:20,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:22:20,384 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:22:20,384 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:22:20,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label40+token_ring.04.cil-1.c [2023-12-16 07:22:21,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:22:22,074 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:22:22,074 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.04.cil-1.c [2023-12-16 07:22:22,127 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd937701/60f4c9c4399e46ad946fdfed574e7149/FLAG3718d77e9 [2023-12-16 07:22:22,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd937701/60f4c9c4399e46ad946fdfed574e7149 [2023-12-16 07:22:22,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:22:22,143 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:22:22,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:22:22,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:22:22,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:22:22,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:22:22" (1/1) ... [2023-12-16 07:22:22,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cad1fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:22, skipping insertion in model container [2023-12-16 07:22:22,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:22:22" (1/1) ... [2023-12-16 07:22:22,348 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:22:23,617 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.04.cil-1.c[377069,377082] [2023-12-16 07:22:23,644 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.04.cil-1.c[383339,383352] [2023-12-16 07:22:23,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:22:23,800 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:22:24,425 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.04.cil-1.c[377069,377082] [2023-12-16 07:22:24,430 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.04.cil-1.c[383339,383352] [2023-12-16 07:22:24,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:22:24,486 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:22:24,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24 WrapperNode [2023-12-16 07:22:24,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:22:24,488 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:22:24,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:22:24,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:22:24,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:24,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:24,817 INFO L138 Inliner]: procedures = 53, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12727 [2023-12-16 07:22:24,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:22:24,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:22:24,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:22:24,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:22:24,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:24,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:24,882 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:25,041 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 07:22:25,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:25,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:25,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:25,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:25,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:25,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:25,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:22:25,403 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:22:25,403 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:22:25,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:22:25,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (1/1) ... [2023-12-16 07:22:25,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:22:25,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:22:25,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 07:22:25,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 07:22:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:22:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:22:25,572 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:22:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:22:25,572 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:22:25,572 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:22:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:22:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:22:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:22:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:22:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:22:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:22:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:22:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:22:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:22:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:22:25,687 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:22:25,689 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:22:33,771 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:22:33,873 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:22:33,873 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-12-16 07:22:33,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:22:33 BoogieIcfgContainer [2023-12-16 07:22:33,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:22:33,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:22:33,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:22:33,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:22:33,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:22:22" (1/3) ... [2023-12-16 07:22:33,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d13ddf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:22:33, skipping insertion in model container [2023-12-16 07:22:33,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:24" (2/3) ... [2023-12-16 07:22:33,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d13ddf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:22:33, skipping insertion in model container [2023-12-16 07:22:33,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:22:33" (3/3) ... [2023-12-16 07:22:33,881 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.04.cil-1.c [2023-12-16 07:22:33,894 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:22:33,895 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:22:33,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:22:33,969 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;@3701b9f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:22:33,969 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:22:33,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 2287 states, 2260 states have (on average 1.8836283185840708) internal successors, (4257), 2263 states have internal predecessors, (4257), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 07:22:33,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:33,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:33,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:33,996 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:34,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:34,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1377940007, now seen corresponding path program 1 times [2023-12-16 07:22:34,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:34,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066601288] [2023-12-16 07:22:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:34,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:34,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:34,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:34,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:22:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:34,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:34,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:34,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:34,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:34,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066601288] [2023-12-16 07:22:34,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066601288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:34,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:34,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:34,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819847033] [2023-12-16 07:22:34,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:34,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:34,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:34,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:34,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:34,256 INFO L87 Difference]: Start difference. First operand has 2287 states, 2260 states have (on average 1.8836283185840708) internal successors, (4257), 2263 states have internal predecessors, (4257), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:34,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:34,441 INFO L93 Difference]: Finished difference Result 4570 states and 8577 transitions. [2023-12-16 07:22:34,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:34,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:34,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:34,461 INFO L225 Difference]: With dead ends: 4570 [2023-12-16 07:22:34,461 INFO L226 Difference]: Without dead ends: 2283 [2023-12-16 07:22:34,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:34,471 INFO L413 NwaCegarLoop]: 4191 mSDtfsCounter, 248 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 8150 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:34,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 8150 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:34,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2023-12-16 07:22:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 2283. [2023-12-16 07:22:34,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2257 states have (on average 1.8489144882587505) internal successors, (4173), 2259 states have internal predecessors, (4173), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 07:22:34,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 4209 transitions. [2023-12-16 07:22:34,572 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 4209 transitions. Word has length 81 [2023-12-16 07:22:34,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:34,573 INFO L495 AbstractCegarLoop]: Abstraction has 2283 states and 4209 transitions. [2023-12-16 07:22:34,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:34,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 4209 transitions. [2023-12-16 07:22:34,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:34,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:34,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:34,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 07:22:34,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:34,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:34,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:34,784 INFO L85 PathProgramCache]: Analyzing trace with hash 490717161, now seen corresponding path program 1 times [2023-12-16 07:22:34,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:34,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123461158] [2023-12-16 07:22:34,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:34,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:34,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:34,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:34,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 07:22:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:35,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:35,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:35,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:35,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:35,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123461158] [2023-12-16 07:22:35,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123461158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:35,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:35,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:35,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857163094] [2023-12-16 07:22:35,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:35,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:35,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:35,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:35,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:35,101 INFO L87 Difference]: Start difference. First operand 2283 states and 4209 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:35,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:35,511 INFO L93 Difference]: Finished difference Result 2604 states and 4714 transitions. [2023-12-16 07:22:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:22:35,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:35,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:35,523 INFO L225 Difference]: With dead ends: 2604 [2023-12-16 07:22:35,523 INFO L226 Difference]: Without dead ends: 2452 [2023-12-16 07:22:35,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:22:35,527 INFO L413 NwaCegarLoop]: 4138 mSDtfsCounter, 4402 mSDsluCounter, 8356 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4414 SdHoareTripleChecker+Valid, 12494 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:35,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4414 Valid, 12494 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:22:35,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2023-12-16 07:22:35,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2439. [2023-12-16 07:22:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2393 states have (on average 1.8340994567488509) internal successors, (4389), 2396 states have internal predecessors, (4389), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-16 07:22:35,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4452 transitions. [2023-12-16 07:22:35,583 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 4452 transitions. Word has length 81 [2023-12-16 07:22:35,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:35,583 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 4452 transitions. [2023-12-16 07:22:35,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:35,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 4452 transitions. [2023-12-16 07:22:35,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:35,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:35,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:35,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:35,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:35,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:35,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:35,798 INFO L85 PathProgramCache]: Analyzing trace with hash -927081943, now seen corresponding path program 1 times [2023-12-16 07:22:35,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:35,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398619315] [2023-12-16 07:22:35,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:35,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:35,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:35,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:35,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 07:22:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:35,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:35,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:35,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:35,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:35,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:35,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398619315] [2023-12-16 07:22:35,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398619315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:35,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:35,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:35,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914493734] [2023-12-16 07:22:35,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:35,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:35,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:35,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:35,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:35,966 INFO L87 Difference]: Start difference. First operand 2439 states and 4452 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:36,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:36,204 INFO L93 Difference]: Finished difference Result 2747 states and 4937 transitions. [2023-12-16 07:22:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:36,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:36,212 INFO L225 Difference]: With dead ends: 2747 [2023-12-16 07:22:36,212 INFO L226 Difference]: Without dead ends: 2439 [2023-12-16 07:22:36,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:22:36,214 INFO L413 NwaCegarLoop]: 4110 mSDtfsCounter, 4275 mSDsluCounter, 8148 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4287 SdHoareTripleChecker+Valid, 12258 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:36,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4287 Valid, 12258 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:36,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2023-12-16 07:22:36,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2023-12-16 07:22:36,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2393 states have (on average 1.8311742582532387) internal successors, (4382), 2396 states have internal predecessors, (4382), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-16 07:22:36,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4445 transitions. [2023-12-16 07:22:36,257 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 4445 transitions. Word has length 81 [2023-12-16 07:22:36,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:36,257 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 4445 transitions. [2023-12-16 07:22:36,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:36,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 4445 transitions. [2023-12-16 07:22:36,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:36,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:36,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:36,274 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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:36,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:36,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:36,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:36,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2081196055, now seen corresponding path program 1 times [2023-12-16 07:22:36,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:36,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904146794] [2023-12-16 07:22:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:36,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:36,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:36,466 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:36,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 07:22:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:36,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:36,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:36,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:36,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:36,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904146794] [2023-12-16 07:22:36,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904146794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:36,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:36,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:36,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480904884] [2023-12-16 07:22:36,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:36,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:36,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:36,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:36,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:36,606 INFO L87 Difference]: Start difference. First operand 2439 states and 4445 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:36,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:36,856 INFO L93 Difference]: Finished difference Result 2747 states and 4923 transitions. [2023-12-16 07:22:36,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:36,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:36,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:36,864 INFO L225 Difference]: With dead ends: 2747 [2023-12-16 07:22:36,864 INFO L226 Difference]: Without dead ends: 2439 [2023-12-16 07:22:36,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:22:36,875 INFO L413 NwaCegarLoop]: 4107 mSDtfsCounter, 4269 mSDsluCounter, 8144 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 12251 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:36,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4281 Valid, 12251 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:36,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2023-12-16 07:22:36,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2023-12-16 07:22:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2393 states have (on average 1.8282490597576264) internal successors, (4375), 2396 states have internal predecessors, (4375), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-16 07:22:36,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4438 transitions. [2023-12-16 07:22:36,979 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 4438 transitions. Word has length 81 [2023-12-16 07:22:36,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:36,980 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 4438 transitions. [2023-12-16 07:22:36,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:36,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 4438 transitions. [2023-12-16 07:22:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:36,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:36,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:37,017 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 [2023-12-16 07:22:37,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:37,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:37,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:37,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1481803815, now seen corresponding path program 1 times [2023-12-16 07:22:37,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:37,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663111280] [2023-12-16 07:22:37,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:37,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:37,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:37,194 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:37,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 07:22:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:37,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:37,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:37,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:37,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:37,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663111280] [2023-12-16 07:22:37,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663111280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:37,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:37,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448820781] [2023-12-16 07:22:37,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:37,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:37,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:37,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:37,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:37,343 INFO L87 Difference]: Start difference. First operand 2439 states and 4438 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:37,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:37,591 INFO L93 Difference]: Finished difference Result 2747 states and 4909 transitions. [2023-12-16 07:22:37,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:37,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:37,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:37,598 INFO L225 Difference]: With dead ends: 2747 [2023-12-16 07:22:37,599 INFO L226 Difference]: Without dead ends: 2439 [2023-12-16 07:22:37,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:22:37,601 INFO L413 NwaCegarLoop]: 4104 mSDtfsCounter, 4263 mSDsluCounter, 8140 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4275 SdHoareTripleChecker+Valid, 12244 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:37,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4275 Valid, 12244 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:37,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2023-12-16 07:22:37,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2023-12-16 07:22:37,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2393 states have (on average 1.8253238612620142) internal successors, (4368), 2396 states have internal predecessors, (4368), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-16 07:22:37,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4431 transitions. [2023-12-16 07:22:37,646 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 4431 transitions. Word has length 81 [2023-12-16 07:22:37,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:37,646 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 4431 transitions. [2023-12-16 07:22:37,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 4431 transitions. [2023-12-16 07:22:37,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:37,647 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:37,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:37,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:37,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:37,852 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:37,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:37,852 INFO L85 PathProgramCache]: Analyzing trace with hash -338389529, now seen corresponding path program 1 times [2023-12-16 07:22:37,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:37,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283055153] [2023-12-16 07:22:37,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:37,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:37,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:37,869 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:37,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:22:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:37,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:37,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:37,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:37,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:37,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283055153] [2023-12-16 07:22:37,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283055153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:37,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:37,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:37,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277180124] [2023-12-16 07:22:37,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:37,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:37,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:37,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:37,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:37,986 INFO L87 Difference]: Start difference. First operand 2439 states and 4431 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:38,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:38,403 INFO L93 Difference]: Finished difference Result 2817 states and 5007 transitions. [2023-12-16 07:22:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:38,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:38,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:38,410 INFO L225 Difference]: With dead ends: 2817 [2023-12-16 07:22:38,410 INFO L226 Difference]: Without dead ends: 2509 [2023-12-16 07:22:38,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:22:38,424 INFO L413 NwaCegarLoop]: 4102 mSDtfsCounter, 4298 mSDsluCounter, 8136 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4310 SdHoareTripleChecker+Valid, 12238 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:38,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4310 Valid, 12238 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:22:38,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2023-12-16 07:22:38,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2509. [2023-12-16 07:22:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 2457 states have (on average 1.8123728123728124) internal successors, (4453), 2460 states have internal predecessors, (4453), 33 states have call successors, (33), 16 states have call predecessors, (33), 17 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 07:22:38,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 4520 transitions. [2023-12-16 07:22:38,467 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 4520 transitions. Word has length 81 [2023-12-16 07:22:38,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:38,468 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 4520 transitions. [2023-12-16 07:22:38,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:38,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 4520 transitions. [2023-12-16 07:22:38,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:38,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:38,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:38,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:38,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:38,673 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:38,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:38,673 INFO L85 PathProgramCache]: Analyzing trace with hash -434130170, now seen corresponding path program 1 times [2023-12-16 07:22:38,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:38,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390623031] [2023-12-16 07:22:38,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:38,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:38,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:38,675 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) [2023-12-16 07:22:38,680 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 [2023-12-16 07:22:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:38,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:38,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:38,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:38,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:38,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390623031] [2023-12-16 07:22:38,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390623031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:38,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:38,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:38,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875357440] [2023-12-16 07:22:38,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:38,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:38,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:38,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:38,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:38,805 INFO L87 Difference]: Start difference. First operand 2509 states and 4520 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:39,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:39,079 INFO L93 Difference]: Finished difference Result 2957 states and 5185 transitions. [2023-12-16 07:22:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:39,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:39,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:39,087 INFO L225 Difference]: With dead ends: 2957 [2023-12-16 07:22:39,088 INFO L226 Difference]: Without dead ends: 2579 [2023-12-16 07:22:39,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:22:39,090 INFO L413 NwaCegarLoop]: 4099 mSDtfsCounter, 4291 mSDsluCounter, 8132 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4303 SdHoareTripleChecker+Valid, 12231 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:39,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4303 Valid, 12231 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:39,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2579 states. [2023-12-16 07:22:39,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2579 to 2579. [2023-12-16 07:22:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2579 states, 2521 states have (on average 1.7984926616422054) internal successors, (4534), 2524 states have internal predecessors, (4534), 35 states have call successors, (35), 20 states have call predecessors, (35), 21 states have return successors, (36), 35 states have call predecessors, (36), 35 states have call successors, (36) [2023-12-16 07:22:39,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 4605 transitions. [2023-12-16 07:22:39,141 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 4605 transitions. Word has length 81 [2023-12-16 07:22:39,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:39,141 INFO L495 AbstractCegarLoop]: Abstraction has 2579 states and 4605 transitions. [2023-12-16 07:22:39,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:39,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 4605 transitions. [2023-12-16 07:22:39,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:39,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:39,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:39,148 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 [2023-12-16 07:22:39,346 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 [2023-12-16 07:22:39,347 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:39,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:39,347 INFO L85 PathProgramCache]: Analyzing trace with hash 667843910, now seen corresponding path program 1 times [2023-12-16 07:22:39,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:39,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976986920] [2023-12-16 07:22:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:39,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:39,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:39,355 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) [2023-12-16 07:22:39,384 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 [2023-12-16 07:22:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:39,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:39,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:39,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:39,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:39,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:39,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976986920] [2023-12-16 07:22:39,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976986920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:39,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:39,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:39,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365759392] [2023-12-16 07:22:39,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:39,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:39,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:39,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:39,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:39,472 INFO L87 Difference]: Start difference. First operand 2579 states and 4605 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:39,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:39,753 INFO L93 Difference]: Finished difference Result 3097 states and 5355 transitions. [2023-12-16 07:22:39,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:39,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:39,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:39,761 INFO L225 Difference]: With dead ends: 3097 [2023-12-16 07:22:39,761 INFO L226 Difference]: Without dead ends: 2649 [2023-12-16 07:22:39,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:22:39,763 INFO L413 NwaCegarLoop]: 4096 mSDtfsCounter, 4285 mSDsluCounter, 8128 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 12224 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:39,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4297 Valid, 12224 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:39,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2649 states. [2023-12-16 07:22:39,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2649 to 2649. [2023-12-16 07:22:39,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2585 states have (on average 1.783752417794971) internal successors, (4611), 2588 states have internal predecessors, (4611), 37 states have call successors, (37), 24 states have call predecessors, (37), 25 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-16 07:22:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 4686 transitions. [2023-12-16 07:22:39,810 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 4686 transitions. Word has length 81 [2023-12-16 07:22:39,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:39,811 INFO L495 AbstractCegarLoop]: Abstraction has 2649 states and 4686 transitions. [2023-12-16 07:22:39,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 4686 transitions. [2023-12-16 07:22:39,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:39,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:39,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:39,826 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:40,016 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 [2023-12-16 07:22:40,016 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:40,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:40,017 INFO L85 PathProgramCache]: Analyzing trace with hash 536667429, now seen corresponding path program 1 times [2023-12-16 07:22:40,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:40,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967347902] [2023-12-16 07:22:40,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:40,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:40,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:40,034 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) [2023-12-16 07:22:40,084 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 [2023-12-16 07:22:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:40,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:40,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:40,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:40,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:40,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:40,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967347902] [2023-12-16 07:22:40,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967347902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:40,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:40,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:40,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510152542] [2023-12-16 07:22:40,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:40,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:40,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:40,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:40,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:40,176 INFO L87 Difference]: Start difference. First operand 2649 states and 4686 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:40,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:40,461 INFO L93 Difference]: Finished difference Result 3237 states and 5517 transitions. [2023-12-16 07:22:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:40,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:40,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:40,482 INFO L225 Difference]: With dead ends: 3237 [2023-12-16 07:22:40,483 INFO L226 Difference]: Without dead ends: 2719 [2023-12-16 07:22:40,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:22:40,487 INFO L413 NwaCegarLoop]: 4093 mSDtfsCounter, 4278 mSDsluCounter, 8124 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4290 SdHoareTripleChecker+Valid, 12217 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:40,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4290 Valid, 12217 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:40,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2023-12-16 07:22:40,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2719. [2023-12-16 07:22:40,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2649 states have (on average 1.7682144205360513) internal successors, (4684), 2652 states have internal predecessors, (4684), 39 states have call successors, (39), 28 states have call predecessors, (39), 29 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:22:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 4763 transitions. [2023-12-16 07:22:40,552 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 4763 transitions. Word has length 81 [2023-12-16 07:22:40,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:40,553 INFO L495 AbstractCegarLoop]: Abstraction has 2719 states and 4763 transitions. [2023-12-16 07:22:40,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:40,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 4763 transitions. [2023-12-16 07:22:40,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:40,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:40,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:40,577 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 (10)] Ended with exit code 0 [2023-12-16 07:22:40,759 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 [2023-12-16 07:22:40,759 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:40,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:40,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1907380762, now seen corresponding path program 1 times [2023-12-16 07:22:40,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:40,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036368065] [2023-12-16 07:22:40,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:40,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:40,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:40,766 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) [2023-12-16 07:22:40,768 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 [2023-12-16 07:22:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:40,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:40,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:40,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:40,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:40,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:40,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036368065] [2023-12-16 07:22:40,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036368065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:40,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:40,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:40,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132103737] [2023-12-16 07:22:40,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:40,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:40,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:40,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:40,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:40,887 INFO L87 Difference]: Start difference. First operand 2719 states and 4763 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:41,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:41,252 INFO L93 Difference]: Finished difference Result 3371 states and 5663 transitions. [2023-12-16 07:22:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:41,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:41,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:41,257 INFO L225 Difference]: With dead ends: 3371 [2023-12-16 07:22:41,257 INFO L226 Difference]: Without dead ends: 2783 [2023-12-16 07:22:41,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:22:41,261 INFO L413 NwaCegarLoop]: 4090 mSDtfsCounter, 4271 mSDsluCounter, 8120 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4283 SdHoareTripleChecker+Valid, 12210 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:41,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4283 Valid, 12210 Invalid, 317 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:41,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2023-12-16 07:22:41,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2783. [2023-12-16 07:22:41,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2711 states have (on average 1.752489856141645) internal successors, (4751), 2714 states have internal predecessors, (4751), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:22:41,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 4830 transitions. [2023-12-16 07:22:41,336 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 4830 transitions. Word has length 81 [2023-12-16 07:22:41,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:41,336 INFO L495 AbstractCegarLoop]: Abstraction has 2783 states and 4830 transitions. [2023-12-16 07:22:41,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:41,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 4830 transitions. [2023-12-16 07:22:41,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:41,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:41,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:41,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:41,556 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 [2023-12-16 07:22:41,556 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:41,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:41,557 INFO L85 PathProgramCache]: Analyzing trace with hash 954141606, now seen corresponding path program 1 times [2023-12-16 07:22:41,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:41,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576470677] [2023-12-16 07:22:41,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:41,557 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:41,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:41,560 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) [2023-12-16 07:22:41,592 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 [2023-12-16 07:22:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:41,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:41,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:41,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:41,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:41,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:41,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576470677] [2023-12-16 07:22:41,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576470677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:41,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:41,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:41,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125704376] [2023-12-16 07:22:41,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:41,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:41,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:41,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:41,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:41,668 INFO L87 Difference]: Start difference. First operand 2783 states and 4830 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:41,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:41,785 INFO L93 Difference]: Finished difference Result 3490 states and 5782 transitions. [2023-12-16 07:22:41,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:41,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:41,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:41,790 INFO L225 Difference]: With dead ends: 3490 [2023-12-16 07:22:41,791 INFO L226 Difference]: Without dead ends: 2839 [2023-12-16 07:22:41,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:41,793 INFO L413 NwaCegarLoop]: 4164 mSDtfsCounter, 38 mSDsluCounter, 8319 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 12483 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:41,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 12483 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:41,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2023-12-16 07:22:41,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2787. [2023-12-16 07:22:41,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2715 states have (on average 1.7476979742173113) internal successors, (4745), 2718 states have internal predecessors, (4745), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:22:41,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 4824 transitions. [2023-12-16 07:22:41,851 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 4824 transitions. Word has length 81 [2023-12-16 07:22:41,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:41,852 INFO L495 AbstractCegarLoop]: Abstraction has 2787 states and 4824 transitions. [2023-12-16 07:22:41,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:41,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 4824 transitions. [2023-12-16 07:22:41,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:41,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:41,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:41,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-16 07:22:42,056 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 [2023-12-16 07:22:42,056 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:42,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1074444504, now seen corresponding path program 1 times [2023-12-16 07:22:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916390068] [2023-12-16 07:22:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:42,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:42,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:42,058 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) [2023-12-16 07:22:42,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 07:22:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:42,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:42,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:42,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:42,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:42,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:42,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916390068] [2023-12-16 07:22:42,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916390068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:42,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:42,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:42,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926564089] [2023-12-16 07:22:42,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:42,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:42,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:42,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:42,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:42,214 INFO L87 Difference]: Start difference. First operand 2787 states and 4824 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:42,323 INFO L93 Difference]: Finished difference Result 3486 states and 5754 transitions. [2023-12-16 07:22:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:42,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:42,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:42,328 INFO L225 Difference]: With dead ends: 3486 [2023-12-16 07:22:42,328 INFO L226 Difference]: Without dead ends: 2831 [2023-12-16 07:22:42,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:42,330 INFO L413 NwaCegarLoop]: 4164 mSDtfsCounter, 29 mSDsluCounter, 8320 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12484 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:42,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12484 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:42,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2023-12-16 07:22:42,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2791. [2023-12-16 07:22:42,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2719 states have (on average 1.742920191246782) internal successors, (4739), 2722 states have internal predecessors, (4739), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:22:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 4818 transitions. [2023-12-16 07:22:42,403 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 4818 transitions. Word has length 81 [2023-12-16 07:22:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:42,403 INFO L495 AbstractCegarLoop]: Abstraction has 2791 states and 4818 transitions. [2023-12-16 07:22:42,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:42,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 4818 transitions. [2023-12-16 07:22:42,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:42,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:42,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:42,410 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 0 [2023-12-16 07:22:42,608 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 [2023-12-16 07:22:42,608 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:42,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:42,608 INFO L85 PathProgramCache]: Analyzing trace with hash 853828198, now seen corresponding path program 1 times [2023-12-16 07:22:42,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:42,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060014747] [2023-12-16 07:22:42,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:42,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:42,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:42,611 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:42,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 07:22:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:42,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:42,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:42,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:42,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:42,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060014747] [2023-12-16 07:22:42,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060014747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:42,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:42,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:42,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304474632] [2023-12-16 07:22:42,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:42,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:42,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:42,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:42,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:42,694 INFO L87 Difference]: Start difference. First operand 2791 states and 4818 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:42,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:42,795 INFO L93 Difference]: Finished difference Result 3482 states and 5726 transitions. [2023-12-16 07:22:42,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:42,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:42,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:42,801 INFO L225 Difference]: With dead ends: 3482 [2023-12-16 07:22:42,801 INFO L226 Difference]: Without dead ends: 2823 [2023-12-16 07:22:42,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:42,804 INFO L413 NwaCegarLoop]: 4164 mSDtfsCounter, 20 mSDsluCounter, 8321 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12485 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:42,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12485 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:42,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2023-12-16 07:22:42,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2795. [2023-12-16 07:22:42,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2795 states, 2723 states have (on average 1.738156445097319) internal successors, (4733), 2726 states have internal predecessors, (4733), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:22:42,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 4812 transitions. [2023-12-16 07:22:42,871 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 4812 transitions. Word has length 81 [2023-12-16 07:22:42,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:42,871 INFO L495 AbstractCegarLoop]: Abstraction has 2795 states and 4812 transitions. [2023-12-16 07:22:42,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:42,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 4812 transitions. [2023-12-16 07:22:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:42,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:42,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:42,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:43,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:43,077 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:43,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:43,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1277474920, now seen corresponding path program 1 times [2023-12-16 07:22:43,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:43,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012355985] [2023-12-16 07:22:43,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:43,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:43,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:43,079 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:43,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 07:22:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:43,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:43,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:43,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:43,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:43,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:43,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012355985] [2023-12-16 07:22:43,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012355985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:43,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:43,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:43,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961246398] [2023-12-16 07:22:43,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:43,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:43,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:43,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:43,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:43,164 INFO L87 Difference]: Start difference. First operand 2795 states and 4812 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:43,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:43,268 INFO L93 Difference]: Finished difference Result 3478 states and 5698 transitions. [2023-12-16 07:22:43,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:43,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:43,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:43,273 INFO L225 Difference]: With dead ends: 3478 [2023-12-16 07:22:43,273 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:22:43,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:43,275 INFO L413 NwaCegarLoop]: 4164 mSDtfsCounter, 11 mSDsluCounter, 8322 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12486 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:43,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12486 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:43,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:22:43,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2799. [2023-12-16 07:22:43,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2727 states have (on average 1.7334066740007334) internal successors, (4727), 2730 states have internal predecessors, (4727), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:22:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 4806 transitions. [2023-12-16 07:22:43,434 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 4806 transitions. Word has length 81 [2023-12-16 07:22:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:43,435 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 4806 transitions. [2023-12-16 07:22:43,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:43,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 4806 transitions. [2023-12-16 07:22:43,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:43,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:43,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:43,446 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:43,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:43,639 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:43,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:43,639 INFO L85 PathProgramCache]: Analyzing trace with hash 883108134, now seen corresponding path program 1 times [2023-12-16 07:22:43,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:43,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241845494] [2023-12-16 07:22:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:43,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:43,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:43,641 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:43,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 07:22:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:43,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:22:43,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:43,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:43,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:43,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:43,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241845494] [2023-12-16 07:22:43,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241845494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:43,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:43,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:43,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684892917] [2023-12-16 07:22:43,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:43,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:43,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:43,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:43,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:43,810 INFO L87 Difference]: Start difference. First operand 2799 states and 4806 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:44,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:44,040 INFO L93 Difference]: Finished difference Result 3467 states and 5645 transitions. [2023-12-16 07:22:44,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:44,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:22:44,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:44,045 INFO L225 Difference]: With dead ends: 3467 [2023-12-16 07:22:44,045 INFO L226 Difference]: Without dead ends: 2799 [2023-12-16 07:22:44,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:22:44,046 INFO L413 NwaCegarLoop]: 4086 mSDtfsCounter, 4194 mSDsluCounter, 8116 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4205 SdHoareTripleChecker+Valid, 12202 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:44,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4205 Valid, 12202 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:44,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2023-12-16 07:22:44,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2023-12-16 07:22:44,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2727 states have (on average 1.7308397506417308) internal successors, (4720), 2730 states have internal predecessors, (4720), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:22:44,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 4799 transitions. [2023-12-16 07:22:44,092 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 4799 transitions. Word has length 81 [2023-12-16 07:22:44,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:44,092 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 4799 transitions. [2023-12-16 07:22:44,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:22:44,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 4799 transitions. [2023-12-16 07:22:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:22:44,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:44,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:44,110 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 (16)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:44,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:44,297 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:44,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:44,297 INFO L85 PathProgramCache]: Analyzing trace with hash -922330200, now seen corresponding path program 1 times [2023-12-16 07:22:44,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:44,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906090026] [2023-12-16 07:22:44,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:44,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:44,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:44,313 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:44,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 07:22:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:44,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:44,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:44,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:44,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:44,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:44,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906090026] [2023-12-16 07:22:44,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906090026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:44,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:44,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:22:44,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629049279] [2023-12-16 07:22:44,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:44,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:44,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:44,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:44,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:44,464 INFO L87 Difference]: Start difference. First operand 2799 states and 4799 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:22:44,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:44,587 INFO L93 Difference]: Finished difference Result 4108 states and 6436 transitions. [2023-12-16 07:22:44,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:44,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2023-12-16 07:22:44,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:44,593 INFO L225 Difference]: With dead ends: 4108 [2023-12-16 07:22:44,593 INFO L226 Difference]: Without dead ends: 3441 [2023-12-16 07:22:44,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:44,596 INFO L413 NwaCegarLoop]: 4196 mSDtfsCounter, 4093 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4093 SdHoareTripleChecker+Valid, 4375 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:44,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4093 Valid, 4375 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:44,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2023-12-16 07:22:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 3439. [2023-12-16 07:22:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3301 states have (on average 1.6428355043926084) internal successors, (5423), 3307 states have internal predecessors, (5423), 74 states have call successors, (74), 60 states have call predecessors, (74), 62 states have return successors, (76), 72 states have call predecessors, (76), 74 states have call successors, (76) [2023-12-16 07:22:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 5573 transitions. [2023-12-16 07:22:44,669 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 5573 transitions. Word has length 81 [2023-12-16 07:22:44,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:44,669 INFO L495 AbstractCegarLoop]: Abstraction has 3439 states and 5573 transitions. [2023-12-16 07:22:44,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:22:44,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 5573 transitions. [2023-12-16 07:22:44,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:22:44,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:44,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:44,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:44,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:44,875 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:44,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:44,875 INFO L85 PathProgramCache]: Analyzing trace with hash -497178965, now seen corresponding path program 1 times [2023-12-16 07:22:44,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:44,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102984778] [2023-12-16 07:22:44,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:44,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:44,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:44,877 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:44,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 07:22:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:44,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:22:44,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:45,099 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:22:45,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:45,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:45,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102984778] [2023-12-16 07:22:45,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102984778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:45,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:45,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:45,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797552649] [2023-12-16 07:22:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:45,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:45,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:45,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:45,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:45,101 INFO L87 Difference]: Start difference. First operand 3439 states and 5573 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:22:45,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:45,401 INFO L93 Difference]: Finished difference Result 5953 states and 8651 transitions. [2023-12-16 07:22:45,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:45,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 131 [2023-12-16 07:22:45,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:45,410 INFO L225 Difference]: With dead ends: 5953 [2023-12-16 07:22:45,410 INFO L226 Difference]: Without dead ends: 4647 [2023-12-16 07:22:45,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:45,414 INFO L413 NwaCegarLoop]: 4145 mSDtfsCounter, 4225 mSDsluCounter, 4216 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4230 SdHoareTripleChecker+Valid, 8361 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:45,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4230 Valid, 8361 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:45,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4647 states. [2023-12-16 07:22:45,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4647 to 4645. [2023-12-16 07:22:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4645 states, 4383 states have (on average 1.5375313712069358) internal successors, (6739), 4397 states have internal predecessors, (6739), 136 states have call successors, (136), 112 states have call predecessors, (136), 124 states have return successors, (160), 136 states have call predecessors, (160), 136 states have call successors, (160) [2023-12-16 07:22:45,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 7035 transitions. [2023-12-16 07:22:45,579 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 7035 transitions. Word has length 131 [2023-12-16 07:22:45,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:45,579 INFO L495 AbstractCegarLoop]: Abstraction has 4645 states and 7035 transitions. [2023-12-16 07:22:45,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:22:45,580 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 7035 transitions. [2023-12-16 07:22:45,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 07:22:45,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:45,582 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:45,595 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 (18)] Ended with exit code 0 [2023-12-16 07:22:45,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:45,787 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:45,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:45,788 INFO L85 PathProgramCache]: Analyzing trace with hash 292126512, now seen corresponding path program 1 times [2023-12-16 07:22:45,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:45,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113883360] [2023-12-16 07:22:45,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:45,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:45,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:45,806 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:45,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 07:22:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:45,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:22:45,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:22:46,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:46,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:46,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113883360] [2023-12-16 07:22:46,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113883360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:46,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:46,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:46,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301776502] [2023-12-16 07:22:46,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:46,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:46,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:46,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:46,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:46,041 INFO L87 Difference]: Start difference. First operand 4645 states and 7035 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:22:46,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:46,493 INFO L93 Difference]: Finished difference Result 9383 states and 12812 transitions. [2023-12-16 07:22:46,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:46,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 133 [2023-12-16 07:22:46,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:46,505 INFO L225 Difference]: With dead ends: 9383 [2023-12-16 07:22:46,505 INFO L226 Difference]: Without dead ends: 6871 [2023-12-16 07:22:46,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:46,510 INFO L413 NwaCegarLoop]: 4177 mSDtfsCounter, 4215 mSDsluCounter, 4244 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 8421 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:46,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 8421 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:46,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6871 states. [2023-12-16 07:22:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6871 to 6869. [2023-12-16 07:22:46,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6869 states, 6372 states have (on average 1.436283741368487) internal successors, (9152), 6403 states have internal predecessors, (9152), 255 states have call successors, (255), 208 states have call predecessors, (255), 240 states have return successors, (323), 259 states have call predecessors, (323), 255 states have call successors, (323) [2023-12-16 07:22:46,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6869 states to 6869 states and 9730 transitions. [2023-12-16 07:22:46,765 INFO L78 Accepts]: Start accepts. Automaton has 6869 states and 9730 transitions. Word has length 133 [2023-12-16 07:22:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:46,765 INFO L495 AbstractCegarLoop]: Abstraction has 6869 states and 9730 transitions. [2023-12-16 07:22:46,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:22:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand 6869 states and 9730 transitions. [2023-12-16 07:22:46,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 07:22:46,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:46,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:46,773 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 (19)] Ended with exit code 0 [2023-12-16 07:22:46,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:46,973 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:46,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:46,973 INFO L85 PathProgramCache]: Analyzing trace with hash -414470094, now seen corresponding path program 1 times [2023-12-16 07:22:46,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:46,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627075646] [2023-12-16 07:22:46,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:46,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:46,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:46,975 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:47,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 07:22:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:47,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:47,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:47,092 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 07:22:47,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:47,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:47,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627075646] [2023-12-16 07:22:47,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627075646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:47,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:47,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:47,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414273320] [2023-12-16 07:22:47,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:47,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:47,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:47,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:47,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:47,095 INFO L87 Difference]: Start difference. First operand 6869 states and 9730 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:22:47,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:47,330 INFO L93 Difference]: Finished difference Result 11599 states and 15471 transitions. [2023-12-16 07:22:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:47,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 133 [2023-12-16 07:22:47,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:47,341 INFO L225 Difference]: With dead ends: 11599 [2023-12-16 07:22:47,341 INFO L226 Difference]: Without dead ends: 6863 [2023-12-16 07:22:47,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:47,347 INFO L413 NwaCegarLoop]: 4160 mSDtfsCounter, 216 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 8117 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:47,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 8117 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:47,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6863 states. [2023-12-16 07:22:47,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6863 to 6863. [2023-12-16 07:22:47,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6863 states, 6369 states have (on average 1.4360182132202857) internal successors, (9146), 6399 states have internal predecessors, (9146), 252 states have call successors, (252), 208 states have call predecessors, (252), 240 states have return successors, (320), 256 states have call predecessors, (320), 252 states have call successors, (320) [2023-12-16 07:22:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6863 states to 6863 states and 9718 transitions. [2023-12-16 07:22:47,539 INFO L78 Accepts]: Start accepts. Automaton has 6863 states and 9718 transitions. Word has length 133 [2023-12-16 07:22:47,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:47,539 INFO L495 AbstractCegarLoop]: Abstraction has 6863 states and 9718 transitions. [2023-12-16 07:22:47,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:22:47,539 INFO L276 IsEmpty]: Start isEmpty. Operand 6863 states and 9718 transitions. [2023-12-16 07:22:47,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 07:22:47,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:47,543 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:47,555 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 (20)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:47,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:47,747 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:47,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:47,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1038449643, now seen corresponding path program 1 times [2023-12-16 07:22:47,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:47,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539767825] [2023-12-16 07:22:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:47,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:47,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:47,749 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:47,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 07:22:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:47,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:22:47,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:47,960 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:22:47,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:47,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:47,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539767825] [2023-12-16 07:22:47,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539767825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:47,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:47,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:47,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604379809] [2023-12-16 07:22:47,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:47,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:47,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:47,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:47,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:47,961 INFO L87 Difference]: Start difference. First operand 6863 states and 9718 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:22:48,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:48,538 INFO L93 Difference]: Finished difference Result 15740 states and 20505 transitions. [2023-12-16 07:22:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:48,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 135 [2023-12-16 07:22:48,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:48,557 INFO L225 Difference]: With dead ends: 15740 [2023-12-16 07:22:48,557 INFO L226 Difference]: Without dead ends: 11010 [2023-12-16 07:22:48,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:48,568 INFO L413 NwaCegarLoop]: 4163 mSDtfsCounter, 4208 mSDsluCounter, 4226 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4214 SdHoareTripleChecker+Valid, 8389 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:48,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4214 Valid, 8389 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:22:48,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2023-12-16 07:22:48,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 11008. [2023-12-16 07:22:49,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11008 states, 10071 states have (on average 1.3528944494091948) internal successors, (13625), 10138 states have internal predecessors, (13625), 471 states have call successors, (471), 384 states have call predecessors, (471), 464 states have return successors, (635), 487 states have call predecessors, (635), 471 states have call successors, (635) [2023-12-16 07:22:49,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11008 states to 11008 states and 14731 transitions. [2023-12-16 07:22:49,018 INFO L78 Accepts]: Start accepts. Automaton has 11008 states and 14731 transitions. Word has length 135 [2023-12-16 07:22:49,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:49,018 INFO L495 AbstractCegarLoop]: Abstraction has 11008 states and 14731 transitions. [2023-12-16 07:22:49,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:22:49,018 INFO L276 IsEmpty]: Start isEmpty. Operand 11008 states and 14731 transitions. [2023-12-16 07:22:49,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 07:22:49,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:49,022 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:49,029 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 (21)] Ended with exit code 0 [2023-12-16 07:22:49,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:49,226 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:49,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:49,227 INFO L85 PathProgramCache]: Analyzing trace with hash 608791337, now seen corresponding path program 1 times [2023-12-16 07:22:49,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:49,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940835344] [2023-12-16 07:22:49,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:49,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:49,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:49,240 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:49,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 07:22:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:49,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:49,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 07:22:49,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:49,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:49,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940835344] [2023-12-16 07:22:49,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940835344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:49,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:49,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:49,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854775781] [2023-12-16 07:22:49,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:49,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:49,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:49,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:49,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:49,339 INFO L87 Difference]: Start difference. First operand 11008 states and 14731 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:22:49,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:49,663 INFO L93 Difference]: Finished difference Result 19878 states and 25476 transitions. [2023-12-16 07:22:49,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:49,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 135 [2023-12-16 07:22:49,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:49,679 INFO L225 Difference]: With dead ends: 19878 [2023-12-16 07:22:49,679 INFO L226 Difference]: Without dead ends: 11003 [2023-12-16 07:22:49,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:49,692 INFO L413 NwaCegarLoop]: 4159 mSDtfsCounter, 214 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 8116 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:49,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 8116 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:49,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11003 states. [2023-12-16 07:22:50,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11003 to 11003. [2023-12-16 07:22:50,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11003 states, 10069 states have (on average 1.352765915185222) internal successors, (13621), 10135 states have internal predecessors, (13621), 468 states have call successors, (468), 384 states have call predecessors, (468), 464 states have return successors, (632), 484 states have call predecessors, (632), 468 states have call successors, (632) [2023-12-16 07:22:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 14721 transitions. [2023-12-16 07:22:50,127 INFO L78 Accepts]: Start accepts. Automaton has 11003 states and 14721 transitions. Word has length 135 [2023-12-16 07:22:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:50,127 INFO L495 AbstractCegarLoop]: Abstraction has 11003 states and 14721 transitions. [2023-12-16 07:22:50,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:22:50,127 INFO L276 IsEmpty]: Start isEmpty. Operand 11003 states and 14721 transitions. [2023-12-16 07:22:50,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 07:22:50,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:50,138 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:50,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:50,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:50,342 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:50,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:50,343 INFO L85 PathProgramCache]: Analyzing trace with hash -588644944, now seen corresponding path program 1 times [2023-12-16 07:22:50,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:50,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759001673] [2023-12-16 07:22:50,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:50,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:50,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:50,357 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:50,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 07:22:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:50,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:22:50,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:22:50,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:50,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:50,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759001673] [2023-12-16 07:22:50,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759001673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:50,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:50,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:50,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377023444] [2023-12-16 07:22:50,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:50,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:50,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:50,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:50,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:50,580 INFO L87 Difference]: Start difference. First operand 11003 states and 14721 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:22:51,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:51,359 INFO L93 Difference]: Finished difference Result 28091 states and 35299 transitions. [2023-12-16 07:22:51,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:51,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 137 [2023-12-16 07:22:51,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:51,391 INFO L225 Difference]: With dead ends: 28091 [2023-12-16 07:22:51,391 INFO L226 Difference]: Without dead ends: 19221 [2023-12-16 07:22:51,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:51,409 INFO L413 NwaCegarLoop]: 4153 mSDtfsCounter, 4207 mSDsluCounter, 4208 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4213 SdHoareTripleChecker+Valid, 8361 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:51,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4213 Valid, 8361 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:51,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19221 states. [2023-12-16 07:22:52,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19221 to 19027. [2023-12-16 07:22:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19027 states, 17034 states have (on average 1.2890689209815662) internal successors, (21958), 17309 states have internal predecessors, (21958), 871 states have call successors, (871), 704 states have call predecessors, (871), 1120 states have return successors, (1484), 1015 states have call predecessors, (1484), 871 states have call successors, (1484) [2023-12-16 07:22:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19027 states to 19027 states and 24313 transitions. [2023-12-16 07:22:52,229 INFO L78 Accepts]: Start accepts. Automaton has 19027 states and 24313 transitions. Word has length 137 [2023-12-16 07:22:52,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:52,229 INFO L495 AbstractCegarLoop]: Abstraction has 19027 states and 24313 transitions. [2023-12-16 07:22:52,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:22:52,230 INFO L276 IsEmpty]: Start isEmpty. Operand 19027 states and 24313 transitions. [2023-12-16 07:22:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 07:22:52,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:52,238 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:52,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-12-16 07:22:52,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:52,441 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:52,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:52,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1023150542, now seen corresponding path program 1 times [2023-12-16 07:22:52,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:52,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119265647] [2023-12-16 07:22:52,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:52,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:52,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:52,443 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:52,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 07:22:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:52,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:52,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 07:22:52,550 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:52,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:52,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119265647] [2023-12-16 07:22:52,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119265647] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:52,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:52,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:52,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818117496] [2023-12-16 07:22:52,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:52,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:52,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:52,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:52,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:52,551 INFO L87 Difference]: Start difference. First operand 19027 states and 24313 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:22:53,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:53,233 INFO L93 Difference]: Finished difference Result 35918 states and 44644 transitions. [2023-12-16 07:22:53,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:53,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 137 [2023-12-16 07:22:53,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:53,264 INFO L225 Difference]: With dead ends: 35918 [2023-12-16 07:22:53,264 INFO L226 Difference]: Without dead ends: 19023 [2023-12-16 07:22:53,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:53,288 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 212 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 8115 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:53,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 8115 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:53,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19023 states. [2023-12-16 07:22:54,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19023 to 19023. [2023-12-16 07:22:54,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19023 states, 17033 states have (on average 1.2890271825280337) internal successors, (21956), 17307 states have internal predecessors, (21956), 868 states have call successors, (868), 704 states have call predecessors, (868), 1120 states have return successors, (1480), 1012 states have call predecessors, (1480), 868 states have call successors, (1480) [2023-12-16 07:22:54,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19023 states to 19023 states and 24304 transitions. [2023-12-16 07:22:54,124 INFO L78 Accepts]: Start accepts. Automaton has 19023 states and 24304 transitions. Word has length 137 [2023-12-16 07:22:54,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:54,124 INFO L495 AbstractCegarLoop]: Abstraction has 19023 states and 24304 transitions. [2023-12-16 07:22:54,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:22:54,124 INFO L276 IsEmpty]: Start isEmpty. Operand 19023 states and 24304 transitions. [2023-12-16 07:22:54,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 07:22:54,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:54,133 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:54,147 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 (24)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:54,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:54,337 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:54,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:54,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1325188821, now seen corresponding path program 1 times [2023-12-16 07:22:54,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:54,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767031401] [2023-12-16 07:22:54,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:54,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:54,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:54,339 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:54,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 07:22:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:54,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:54,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:22:54,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:54,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:54,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767031401] [2023-12-16 07:22:54,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767031401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:54,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:54,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:54,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24045022] [2023-12-16 07:22:54,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:54,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:54,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:54,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:54,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:54,449 INFO L87 Difference]: Start difference. First operand 19023 states and 24304 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 07:22:55,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:55,620 INFO L93 Difference]: Finished difference Result 49161 states and 60780 transitions. [2023-12-16 07:22:55,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:55,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 139 [2023-12-16 07:22:55,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:55,682 INFO L225 Difference]: With dead ends: 49161 [2023-12-16 07:22:55,682 INFO L226 Difference]: Without dead ends: 25723 [2023-12-16 07:22:55,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:55,711 INFO L413 NwaCegarLoop]: 4329 mSDtfsCounter, 176 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 8480 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:55,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 8480 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:55,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25723 states. [2023-12-16 07:22:56,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25723 to 25723. [2023-12-16 07:22:56,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25723 states, 22949 states have (on average 1.2649352912980958) internal successors, (29029), 23303 states have internal predecessors, (29029), 1236 states have call successors, (1236), 992 states have call predecessors, (1236), 1536 states have return successors, (2106), 1428 states have call predecessors, (2106), 1236 states have call successors, (2106) [2023-12-16 07:22:56,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25723 states to 25723 states and 32371 transitions. [2023-12-16 07:22:56,903 INFO L78 Accepts]: Start accepts. Automaton has 25723 states and 32371 transitions. Word has length 139 [2023-12-16 07:22:56,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:56,903 INFO L495 AbstractCegarLoop]: Abstraction has 25723 states and 32371 transitions. [2023-12-16 07:22:56,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 07:22:56,903 INFO L276 IsEmpty]: Start isEmpty. Operand 25723 states and 32371 transitions. [2023-12-16 07:22:56,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-16 07:22:56,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:56,917 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:22:56,920 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 (25)] Ended with exit code 0 [2023-12-16 07:22:57,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:57,121 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:57,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:57,121 INFO L85 PathProgramCache]: Analyzing trace with hash 952201055, now seen corresponding path program 1 times [2023-12-16 07:22:57,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:57,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197801374] [2023-12-16 07:22:57,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:57,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:57,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:57,123 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:57,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 07:22:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:57,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:57,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:57,372 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:22:57,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:57,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:57,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197801374] [2023-12-16 07:22:57,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197801374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:57,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:57,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:22:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787847396] [2023-12-16 07:22:57,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:57,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:57,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:57,374 INFO L87 Difference]: Start difference. First operand 25723 states and 32371 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:22:58,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:58,681 INFO L93 Difference]: Finished difference Result 55950 states and 68959 transitions. [2023-12-16 07:22:58,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:58,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 175 [2023-12-16 07:22:58,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:58,744 INFO L225 Difference]: With dead ends: 55950 [2023-12-16 07:22:58,744 INFO L226 Difference]: Without dead ends: 32359 [2023-12-16 07:22:58,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:58,771 INFO L413 NwaCegarLoop]: 4156 mSDtfsCounter, 4059 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4059 SdHoareTripleChecker+Valid, 4337 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:58,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4059 Valid, 4337 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:22:58,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32359 states. [2023-12-16 07:23:00,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32359 to 32311. [2023-12-16 07:23:00,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32311 states, 28817 states have (on average 1.2461047298469654) internal successors, (35909), 29211 states have internal predecessors, (35909), 1604 states have call successors, (1604), 1280 states have call predecessors, (1604), 1888 states have return successors, (2622), 1820 states have call predecessors, (2622), 1604 states have call successors, (2622) [2023-12-16 07:23:00,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32311 states to 32311 states and 40135 transitions. [2023-12-16 07:23:00,404 INFO L78 Accepts]: Start accepts. Automaton has 32311 states and 40135 transitions. Word has length 175 [2023-12-16 07:23:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:23:00,404 INFO L495 AbstractCegarLoop]: Abstraction has 32311 states and 40135 transitions. [2023-12-16 07:23:00,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:23:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 32311 states and 40135 transitions. [2023-12-16 07:23:00,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-16 07:23:00,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:23:00,438 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:23:00,445 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 (26)] Forceful destruction successful, exit code 0 [2023-12-16 07:23:00,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:00,645 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:23:00,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:23:00,646 INFO L85 PathProgramCache]: Analyzing trace with hash -983920095, now seen corresponding path program 1 times [2023-12-16 07:23:00,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:23:00,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397780023] [2023-12-16 07:23:00,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:23:00,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:00,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:23:00,647 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:23:00,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 07:23:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:23:00,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:23:00,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:23:01,033 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 07:23:01,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:23:01,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:23:01,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397780023] [2023-12-16 07:23:01,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397780023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:23:01,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:23:01,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:23:01,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065745211] [2023-12-16 07:23:01,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:23:01,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:23:01,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:23:01,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:23:01,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:23:01,037 INFO L87 Difference]: Start difference. First operand 32311 states and 40135 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 07:23:02,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:23:02,807 INFO L93 Difference]: Finished difference Result 62787 states and 76808 transitions. [2023-12-16 07:23:02,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:23:02,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 199 [2023-12-16 07:23:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:23:02,863 INFO L225 Difference]: With dead ends: 62787 [2023-12-16 07:23:02,864 INFO L226 Difference]: Without dead ends: 32609 [2023-12-16 07:23:02,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:23:02,884 INFO L413 NwaCegarLoop]: 4112 mSDtfsCounter, 4224 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4230 SdHoareTripleChecker+Valid, 8307 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:23:02,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4230 Valid, 8307 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:23:02,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32609 states. [2023-12-16 07:23:04,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32609 to 32609. [2023-12-16 07:23:04,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32609 states, 29083 states have (on average 1.2385586081215831) internal successors, (36021), 29493 states have internal predecessors, (36021), 1604 states have call successors, (1604), 1280 states have call predecessors, (1604), 1920 states have return successors, (2400), 1836 states have call predecessors, (2400), 1604 states have call successors, (2400) [2023-12-16 07:23:04,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32609 states to 32609 states and 40025 transitions. [2023-12-16 07:23:04,526 INFO L78 Accepts]: Start accepts. Automaton has 32609 states and 40025 transitions. Word has length 199 [2023-12-16 07:23:04,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:23:04,526 INFO L495 AbstractCegarLoop]: Abstraction has 32609 states and 40025 transitions. [2023-12-16 07:23:04,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 07:23:04,526 INFO L276 IsEmpty]: Start isEmpty. Operand 32609 states and 40025 transitions. [2023-12-16 07:23:04,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 07:23:04,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:23:04,543 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:23:04,547 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 (27)] Ended with exit code 0 [2023-12-16 07:23:04,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:04,747 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:23:04,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:23:04,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1161888085, now seen corresponding path program 1 times [2023-12-16 07:23:04,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:23:04,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981840394] [2023-12-16 07:23:04,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:23:04,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:04,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:23:04,749 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:23:04,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 07:23:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:23:04,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:23:04,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:23:04,895 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:23:04,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:23:04,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:23:04,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981840394] [2023-12-16 07:23:04,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981840394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:23:04,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:23:04,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:23:04,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957165944] [2023-12-16 07:23:04,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:23:04,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:23:04,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:23:04,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:23:04,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:23:04,900 INFO L87 Difference]: Start difference. First operand 32609 states and 40025 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 07:23:06,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:23:06,255 INFO L93 Difference]: Finished difference Result 56529 states and 68431 transitions. [2023-12-16 07:23:06,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:23:06,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 200 [2023-12-16 07:23:06,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:23:06,408 INFO L225 Difference]: With dead ends: 56529 [2023-12-16 07:23:06,408 INFO L226 Difference]: Without dead ends: 32611 [2023-12-16 07:23:06,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:23:06,429 INFO L413 NwaCegarLoop]: 4318 mSDtfsCounter, 168 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 8475 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:23:06,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 8475 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:23:06,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32611 states. [2023-12-16 07:23:08,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32611 to 32609. [2023-12-16 07:23:08,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32609 states, 29083 states have (on average 1.2368393907093491) internal successors, (35971), 29493 states have internal predecessors, (35971), 1604 states have call successors, (1604), 1280 states have call predecessors, (1604), 1920 states have return successors, (2394), 1836 states have call predecessors, (2394), 1604 states have call successors, (2394) [2023-12-16 07:23:08,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32609 states to 32609 states and 39969 transitions. [2023-12-16 07:23:08,301 INFO L78 Accepts]: Start accepts. Automaton has 32609 states and 39969 transitions. Word has length 200 [2023-12-16 07:23:08,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:23:08,301 INFO L495 AbstractCegarLoop]: Abstraction has 32609 states and 39969 transitions. [2023-12-16 07:23:08,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 07:23:08,301 INFO L276 IsEmpty]: Start isEmpty. Operand 32609 states and 39969 transitions. [2023-12-16 07:23:08,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-16 07:23:08,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:23:08,318 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:23:08,322 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 (28)] Ended with exit code 0 [2023-12-16 07:23:08,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:08,522 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:23:08,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:23:08,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1035406802, now seen corresponding path program 1 times [2023-12-16 07:23:08,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:23:08,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162441672] [2023-12-16 07:23:08,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:23:08,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:08,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:23:08,524 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:23:08,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 07:23:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:23:08,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:23:08,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:23:08,696 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 07:23:08,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:23:08,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:23:08,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162441672] [2023-12-16 07:23:08,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162441672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:23:08,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:23:08,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:23:08,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486501598] [2023-12-16 07:23:08,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:23:08,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:23:08,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:23:08,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:23:08,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:23:08,697 INFO L87 Difference]: Start difference. First operand 32609 states and 39969 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:23:11,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:23:11,356 INFO L93 Difference]: Finished difference Result 78189 states and 96171 transitions. [2023-12-16 07:23:11,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:23:11,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 201 [2023-12-16 07:23:11,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:23:11,470 INFO L225 Difference]: With dead ends: 78189 [2023-12-16 07:23:11,471 INFO L226 Difference]: Without dead ends: 54271 [2023-12-16 07:23:11,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:23:11,499 INFO L413 NwaCegarLoop]: 4162 mSDtfsCounter, 4150 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4150 SdHoareTripleChecker+Valid, 4343 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:23:11,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4150 Valid, 4343 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:23:11,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54271 states. [2023-12-16 07:23:14,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54271 to 53725. [2023-12-16 07:23:14,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53725 states, 47623 states have (on average 1.2115784389895639) internal successors, (57699), 48385 states have internal predecessors, (57699), 2740 states have call successors, (2740), 2176 states have call predecessors, (2740), 3360 states have return successors, (5262), 3164 states have call predecessors, (5262), 2740 states have call successors, (5262) [2023-12-16 07:23:14,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53725 states to 53725 states and 65701 transitions. [2023-12-16 07:23:14,467 INFO L78 Accepts]: Start accepts. Automaton has 53725 states and 65701 transitions. Word has length 201 [2023-12-16 07:23:14,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:23:14,468 INFO L495 AbstractCegarLoop]: Abstraction has 53725 states and 65701 transitions. [2023-12-16 07:23:14,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:23:14,468 INFO L276 IsEmpty]: Start isEmpty. Operand 53725 states and 65701 transitions. [2023-12-16 07:23:14,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-16 07:23:14,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:23:14,492 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:23:14,499 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 (29)] Forceful destruction successful, exit code 0 [2023-12-16 07:23:14,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:14,697 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:23:14,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:23:14,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1533821993, now seen corresponding path program 1 times [2023-12-16 07:23:14,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:23:14,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871425677] [2023-12-16 07:23:14,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:23:14,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:14,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:23:14,699 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:23:14,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 07:23:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:23:14,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:23:14,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:23:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:23:14,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:23:14,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:23:14,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871425677] [2023-12-16 07:23:14,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871425677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:23:14,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:23:14,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:23:14,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147661990] [2023-12-16 07:23:14,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:23:14,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:23:14,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:23:14,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:23:14,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:23:14,870 INFO L87 Difference]: Start difference. First operand 53725 states and 65701 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:23:17,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:23:17,326 INFO L93 Difference]: Finished difference Result 104214 states and 128479 transitions. [2023-12-16 07:23:17,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:23:17,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 202 [2023-12-16 07:23:17,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:23:17,409 INFO L225 Difference]: With dead ends: 104214 [2023-12-16 07:23:17,409 INFO L226 Difference]: Without dead ends: 45383 [2023-12-16 07:23:17,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:23:17,455 INFO L413 NwaCegarLoop]: 4157 mSDtfsCounter, 2 mSDsluCounter, 8309 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12466 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:23:17,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12466 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:23:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45383 states. [2023-12-16 07:23:19,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45383 to 45290. [2023-12-16 07:23:19,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45290 states, 40612 states have (on average 1.198315768738304) internal successors, (48666), 40950 states have internal predecessors, (48666), 2340 states have call successors, (2340), 1856 states have call predecessors, (2340), 2336 states have return successors, (3436), 2484 states have call predecessors, (3436), 2340 states have call successors, (3436) [2023-12-16 07:23:19,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45290 states to 45290 states and 54442 transitions. [2023-12-16 07:23:19,773 INFO L78 Accepts]: Start accepts. Automaton has 45290 states and 54442 transitions. Word has length 202 [2023-12-16 07:23:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:23:19,774 INFO L495 AbstractCegarLoop]: Abstraction has 45290 states and 54442 transitions. [2023-12-16 07:23:19,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:23:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 45290 states and 54442 transitions. [2023-12-16 07:23:19,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-16 07:23:19,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:23:19,793 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:23:19,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 07:23:19,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:19,997 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:23:19,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:23:19,997 INFO L85 PathProgramCache]: Analyzing trace with hash -742750507, now seen corresponding path program 1 times [2023-12-16 07:23:19,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:23:19,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570046457] [2023-12-16 07:23:19,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:23:19,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:19,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:23:19,999 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:23:20,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 07:23:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:23:20,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:23:20,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:23:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-16 07:23:20,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:23:20,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:23:20,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570046457] [2023-12-16 07:23:20,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570046457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:23:20,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:23:20,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:23:20,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540661474] [2023-12-16 07:23:20,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:23:20,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:23:20,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:23:20,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:23:20,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:23:20,255 INFO L87 Difference]: Start difference. First operand 45290 states and 54442 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 07:23:22,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:23:22,743 INFO L93 Difference]: Finished difference Result 94364 states and 111861 transitions. [2023-12-16 07:23:22,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:23:22,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 236 [2023-12-16 07:23:22,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:23:22,859 INFO L225 Difference]: With dead ends: 94364 [2023-12-16 07:23:22,859 INFO L226 Difference]: Without dead ends: 51206 [2023-12-16 07:23:22,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:23:22,903 INFO L413 NwaCegarLoop]: 4156 mSDtfsCounter, 4040 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4040 SdHoareTripleChecker+Valid, 4337 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:23:22,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4040 Valid, 4337 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:23:22,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51206 states. [2023-12-16 07:23:25,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51206 to 51110. [2023-12-16 07:23:25,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51110 states, 45792 states have (on average 1.1892470300489169) internal successors, (54458), 46162 states have internal predecessors, (54458), 2676 states have call successors, (2676), 2112 states have call predecessors, (2676), 2640 states have return successors, (3856), 2836 states have call predecessors, (3856), 2676 states have call successors, (3856) [2023-12-16 07:23:25,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51110 states to 51110 states and 60990 transitions. [2023-12-16 07:23:25,497 INFO L78 Accepts]: Start accepts. Automaton has 51110 states and 60990 transitions. Word has length 236 [2023-12-16 07:23:25,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:23:25,497 INFO L495 AbstractCegarLoop]: Abstraction has 51110 states and 60990 transitions. [2023-12-16 07:23:25,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 07:23:25,498 INFO L276 IsEmpty]: Start isEmpty. Operand 51110 states and 60990 transitions. [2023-12-16 07:23:25,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 07:23:25,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:23:25,522 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:23:25,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 Received shutdown request... [2023-12-16 07:23:25,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:25,723 WARN L619 AbstractCegarLoop]: Verification canceled: while executing NwaCegarLoop. [2023-12-16 07:23:25,725 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:23:25,725 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:23:25,728 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:23:25,729 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:23:25,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:23:25 BoogieIcfgContainer [2023-12-16 07:23:25,731 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:23:25,731 INFO L158 Benchmark]: Toolchain (without parser) took 63587.77ms. Allocated memory was 188.7MB in the beginning and 6.7GB in the end (delta: 6.5GB). Free memory was 108.2MB in the beginning and 4.6GB in the end (delta: -4.4GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 07:23:25,731 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 188.7MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:23:25,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2341.50ms. Allocated memory was 188.7MB in the beginning and 255.9MB in the end (delta: 67.1MB). Free memory was 108.2MB in the beginning and 97.8MB in the end (delta: 10.4MB). Peak memory consumption was 125.7MB. Max. memory is 8.0GB. [2023-12-16 07:23:25,731 INFO L158 Benchmark]: Boogie Procedure Inliner took 329.67ms. Allocated memory is still 255.9MB. Free memory was 97.8MB in the beginning and 104.1MB in the end (delta: -6.3MB). Peak memory consumption was 49.8MB. Max. memory is 8.0GB. [2023-12-16 07:23:25,731 INFO L158 Benchmark]: Boogie Preprocessor took 584.05ms. Allocated memory was 255.9MB in the beginning and 511.7MB in the end (delta: 255.9MB). Free memory was 104.1MB in the beginning and 353.2MB in the end (delta: -249.0MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2023-12-16 07:23:25,732 INFO L158 Benchmark]: RCFGBuilder took 8472.10ms. Allocated memory was 511.7MB in the beginning and 1.2GB in the end (delta: 707.8MB). Free memory was 353.2MB in the beginning and 711.2MB in the end (delta: -358.1MB). Peak memory consumption was 443.5MB. Max. memory is 8.0GB. [2023-12-16 07:23:25,732 INFO L158 Benchmark]: TraceAbstraction took 51853.67ms. Allocated memory was 1.2GB in the beginning and 6.7GB in the end (delta: 5.5GB). Free memory was 710.7MB in the beginning and 4.6GB in the end (delta: -3.8GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 07:23:25,732 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 188.7MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2341.50ms. Allocated memory was 188.7MB in the beginning and 255.9MB in the end (delta: 67.1MB). Free memory was 108.2MB in the beginning and 97.8MB in the end (delta: 10.4MB). Peak memory consumption was 125.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 329.67ms. Allocated memory is still 255.9MB. Free memory was 97.8MB in the beginning and 104.1MB in the end (delta: -6.3MB). Peak memory consumption was 49.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 584.05ms. Allocated memory was 255.9MB in the beginning and 511.7MB in the end (delta: 255.9MB). Free memory was 104.1MB in the beginning and 353.2MB in the end (delta: -249.0MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * RCFGBuilder took 8472.10ms. Allocated memory was 511.7MB in the beginning and 1.2GB in the end (delta: 707.8MB). Free memory was 353.2MB in the beginning and 711.2MB in the end (delta: -358.1MB). Peak memory consumption was 443.5MB. Max. memory is 8.0GB. * TraceAbstraction took 51853.67ms. Allocated memory was 1.2GB in the beginning and 6.7GB in the end (delta: 5.5GB). Free memory was 710.7MB in the beginning and 4.6GB in the end (delta: -3.8GB). Peak memory consumption was 1.6GB. 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: 11016]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11016). Cancelled while executing NwaCegarLoop. - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while executing NwaCegarLoop. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2287 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 51.8s, OverallIterations: 30, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 21.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81728 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81581 mSDsluCounter, 293657 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169084 mSDsCounter, 504 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4511 IncrementalHoareTripleChecker+Invalid, 5015 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 504 mSolverCounterUnsat, 124573 mSDtfsCounter, 4511 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3579 GetRequests, 3504 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53725occurred in iteration=28, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 18.4s AutomataMinimizationTime, 30 MinimizatonAttempts, 1136 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3589 NumberOfCodeBlocks, 3589 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 3559 ConstructedInterpolants, 0 QuantifiedInterpolants, 6064 SizeOfPredicates, 5 NumberOfNonLiveVariables, 8223 ConjunctsInSsa, 118 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 1116/1116 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