/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_label47+token_ring.02.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:34:10,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:34:10,150 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:34:10,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:34:10,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:34:10,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:34:10,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:34:10,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:34:10,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:34:10,186 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:34:10,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:34:10,186 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:34:10,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:34:10,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:34:10,188 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:34:10,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:34:10,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:34:10,188 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:34:10,188 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:34:10,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:34:10,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:34:10,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:34:10,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:34:10,190 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:34:10,190 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:34:10,190 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:34:10,190 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:34:10,190 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:34:10,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:34:10,191 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:34:10,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:34:10,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:34:10,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:34:10,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:34:10,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:34:10,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:34:10,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:34:10,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:34:10,192 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:34:10,192 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:34:10,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:34:10,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:34:10,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:34:10,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:34:10,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:34:10,193 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:34:10,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:34:10,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:34:10,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:34:10,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:34:10,383 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:34:10,383 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:34:10,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label47+token_ring.02.cil-1.c [2023-12-16 07:34:11,465 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:34:11,935 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:34:11,935 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.02.cil-1.c [2023-12-16 07:34:11,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0d27e903/b1695ece1f3545978879cfd21f4024bd/FLAGafa5f3cf9 [2023-12-16 07:34:11,999 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0d27e903/b1695ece1f3545978879cfd21f4024bd [2023-12-16 07:34:12,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:34:12,002 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:34:12,004 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:34:12,004 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:34:12,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:34:12,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:34:12" (1/1) ... [2023-12-16 07:34:12,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2deaf94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:12, skipping insertion in model container [2023-12-16 07:34:12,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:34:12" (1/1) ... [2023-12-16 07:34:12,245 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:34:13,418 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_label47+token_ring.02.cil-1.c[377612,377625] [2023-12-16 07:34:13,445 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_label47+token_ring.02.cil-1.c[383339,383352] [2023-12-16 07:34:13,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:34:13,561 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:34:14,131 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_label47+token_ring.02.cil-1.c[377612,377625] [2023-12-16 07:34:14,139 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_label47+token_ring.02.cil-1.c[383339,383352] [2023-12-16 07:34:14,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:34:14,197 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:34:14,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14 WrapperNode [2023-12-16 07:34:14,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:34:14,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:34:14,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:34:14,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:34:14,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:14,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:14,544 INFO L138 Inliner]: procedures = 49, calls = 47, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12611 [2023-12-16 07:34:14,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:34:14,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:34:14,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:34:14,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:34:14,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:14,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:14,609 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:14,682 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 07:34:14,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:14,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:14,901 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:14,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:14,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:14,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:15,030 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:34:15,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:34:15,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:34:15,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:34:15,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (1/1) ... [2023-12-16 07:34:15,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:34:15,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:34:15,143 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 07:34:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:34:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:34:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:34:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:34:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:34:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:34:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:34:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:34:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:34:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:34:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:34:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:34:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:34:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:34:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:34:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:34:15,152 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 07:34:15,242 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:34:15,243 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:34:23,000 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:34:23,094 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:34:23,094 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-16 07:34:23,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:34:23 BoogieIcfgContainer [2023-12-16 07:34:23,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:34:23,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:34:23,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:34:23,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:34:23,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:34:12" (1/3) ... [2023-12-16 07:34:23,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3d829f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:34:23, skipping insertion in model container [2023-12-16 07:34:23,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:34:14" (2/3) ... [2023-12-16 07:34:23,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3d829f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:34:23, skipping insertion in model container [2023-12-16 07:34:23,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:34:23" (3/3) ... [2023-12-16 07:34:23,105 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.02.cil-1.c [2023-12-16 07:34:23,117 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:34:23,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:34:23,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:34:23,188 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;@5b919e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:34:23,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:34:23,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 2241 states, 2216 states have (on average 1.8858303249097472) internal successors, (4179), 2219 states have internal predecessors, (4179), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 07:34:23,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:34:23,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:23,214 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] [2023-12-16 07:34:23,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:23,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:23,219 INFO L85 PathProgramCache]: Analyzing trace with hash -584044612, now seen corresponding path program 1 times [2023-12-16 07:34:23,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:23,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84772431] [2023-12-16 07:34:23,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:23,231 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 07:34:23,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:23,233 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 07:34:23,236 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 07:34:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:23,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:23,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:23,434 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 07:34:23,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:23,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:23,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84772431] [2023-12-16 07:34:23,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84772431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:23,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:23,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:23,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806205362] [2023-12-16 07:34:23,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:23,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:23,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:23,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:23,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:23,471 INFO L87 Difference]: Start difference. First operand has 2241 states, 2216 states have (on average 1.8858303249097472) internal successors, (4179), 2219 states have internal predecessors, (4179), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 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 07:34:23,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:23,865 INFO L93 Difference]: Finished difference Result 4593 states and 8601 transitions. [2023-12-16 07:34:23,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:34:23,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 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 61 [2023-12-16 07:34:23,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:23,882 INFO L225 Difference]: With dead ends: 4593 [2023-12-16 07:34:23,882 INFO L226 Difference]: Without dead ends: 2354 [2023-12-16 07:34:23,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 07:34:23,891 INFO L413 NwaCegarLoop]: 4085 mSDtfsCounter, 4246 mSDsluCounter, 8217 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4256 SdHoareTripleChecker+Valid, 12302 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:23,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4256 Valid, 12302 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:34:23,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2023-12-16 07:34:23,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2345. [2023-12-16 07:34:23,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2303 states have (on average 1.84020842379505) internal successors, (4238), 2306 states have internal predecessors, (4238), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2023-12-16 07:34:23,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4293 transitions. [2023-12-16 07:34:23,976 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4293 transitions. Word has length 61 [2023-12-16 07:34:23,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:23,976 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4293 transitions. [2023-12-16 07:34:23,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 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 07:34:23,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4293 transitions. [2023-12-16 07:34:23,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:34:23,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:23,979 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] [2023-12-16 07:34:23,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:24,182 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 07:34:24,183 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:24,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:24,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1424404092, now seen corresponding path program 1 times [2023-12-16 07:34:24,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:24,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38143127] [2023-12-16 07:34:24,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:24,184 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 07:34:24,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:24,185 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 07:34:24,188 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 07:34:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:24,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:24,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:24,305 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 07:34:24,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:24,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:24,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38143127] [2023-12-16 07:34:24,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38143127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:24,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:24,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:24,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864360812] [2023-12-16 07:34:24,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:24,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:24,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:24,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:24,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:24,307 INFO L87 Difference]: Start difference. First operand 2345 states and 4293 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 07:34:24,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:24,529 INFO L93 Difference]: Finished difference Result 2561 states and 4622 transitions. [2023-12-16 07:34:24,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:24,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 61 [2023-12-16 07:34:24,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:24,540 INFO L225 Difference]: With dead ends: 2561 [2023-12-16 07:34:24,540 INFO L226 Difference]: Without dead ends: 2345 [2023-12-16 07:34:24,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 07:34:24,543 INFO L413 NwaCegarLoop]: 4061 mSDtfsCounter, 4164 mSDsluCounter, 8070 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4174 SdHoareTripleChecker+Valid, 12131 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:24,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4174 Valid, 12131 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:24,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2023-12-16 07:34:24,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2345. [2023-12-16 07:34:24,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2303 states have (on average 1.8371689101172384) internal successors, (4231), 2306 states have internal predecessors, (4231), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2023-12-16 07:34:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4286 transitions. [2023-12-16 07:34:24,597 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4286 transitions. Word has length 61 [2023-12-16 07:34:24,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:24,597 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4286 transitions. [2023-12-16 07:34:24,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 07:34:24,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4286 transitions. [2023-12-16 07:34:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:34:24,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:24,602 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] [2023-12-16 07:34:24,620 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 07:34:24,808 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 07:34:24,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:24,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1627740092, now seen corresponding path program 1 times [2023-12-16 07:34:24,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:24,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324333280] [2023-12-16 07:34:24,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:24,810 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 07:34:24,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:24,811 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 07:34:24,813 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 07:34:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:24,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:24,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:24,897 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 07:34:24,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:24,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:24,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324333280] [2023-12-16 07:34:24,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324333280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:24,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:24,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:24,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497987926] [2023-12-16 07:34:24,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:24,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:24,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:24,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:24,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:24,899 INFO L87 Difference]: Start difference. First operand 2345 states and 4286 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 07:34:25,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:25,080 INFO L93 Difference]: Finished difference Result 2561 states and 4608 transitions. [2023-12-16 07:34:25,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:25,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 61 [2023-12-16 07:34:25,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:25,088 INFO L225 Difference]: With dead ends: 2561 [2023-12-16 07:34:25,088 INFO L226 Difference]: Without dead ends: 2345 [2023-12-16 07:34:25,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 07:34:25,090 INFO L413 NwaCegarLoop]: 4058 mSDtfsCounter, 4158 mSDsluCounter, 8066 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4168 SdHoareTripleChecker+Valid, 12124 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:25,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4168 Valid, 12124 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:25,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2023-12-16 07:34:25,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2345. [2023-12-16 07:34:25,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2303 states have (on average 1.8341293964394267) internal successors, (4224), 2306 states have internal predecessors, (4224), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2023-12-16 07:34:25,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4279 transitions. [2023-12-16 07:34:25,138 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4279 transitions. Word has length 61 [2023-12-16 07:34:25,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:25,138 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4279 transitions. [2023-12-16 07:34:25,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 07:34:25,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4279 transitions. [2023-12-16 07:34:25,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:34:25,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:25,139 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] [2023-12-16 07:34:25,164 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 07:34:25,342 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 07:34:25,343 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:25,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:25,343 INFO L85 PathProgramCache]: Analyzing trace with hash -728065158, now seen corresponding path program 1 times [2023-12-16 07:34:25,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:25,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128101941] [2023-12-16 07:34:25,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:25,344 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 07:34:25,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:25,345 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 07:34:25,351 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 07:34:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:25,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:25,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:25,451 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 07:34:25,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:25,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:25,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128101941] [2023-12-16 07:34:25,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128101941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:25,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:25,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:25,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814911261] [2023-12-16 07:34:25,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:25,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:25,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:25,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:25,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:25,453 INFO L87 Difference]: Start difference. First operand 2345 states and 4279 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 07:34:25,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:25,691 INFO L93 Difference]: Finished difference Result 2607 states and 4666 transitions. [2023-12-16 07:34:25,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:25,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 61 [2023-12-16 07:34:25,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:25,699 INFO L225 Difference]: With dead ends: 2607 [2023-12-16 07:34:25,699 INFO L226 Difference]: Without dead ends: 2391 [2023-12-16 07:34:25,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 07:34:25,701 INFO L413 NwaCegarLoop]: 4056 mSDtfsCounter, 4175 mSDsluCounter, 8062 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4185 SdHoareTripleChecker+Valid, 12118 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:25,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4185 Valid, 12118 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:34:25,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2023-12-16 07:34:25,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2391. [2023-12-16 07:34:25,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2391 states, 2343 states have (on average 1.8237302603499788) internal successors, (4273), 2346 states have internal predecessors, (4273), 29 states have call successors, (29), 16 states have call predecessors, (29), 17 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2023-12-16 07:34:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 4332 transitions. [2023-12-16 07:34:25,750 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 4332 transitions. Word has length 61 [2023-12-16 07:34:25,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:25,750 INFO L495 AbstractCegarLoop]: Abstraction has 2391 states and 4332 transitions. [2023-12-16 07:34:25,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 07:34:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 4332 transitions. [2023-12-16 07:34:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:34:25,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:25,751 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] [2023-12-16 07:34:25,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:25,954 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 07:34:25,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:25,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:25,955 INFO L85 PathProgramCache]: Analyzing trace with hash -488736198, now seen corresponding path program 1 times [2023-12-16 07:34:25,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:25,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782594749] [2023-12-16 07:34:25,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:25,956 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 07:34:25,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:25,957 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 07:34:25,960 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 07:34:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:26,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:26,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:26,045 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 07:34:26,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:26,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:26,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782594749] [2023-12-16 07:34:26,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782594749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:26,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:26,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:26,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871707390] [2023-12-16 07:34:26,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:26,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:26,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:26,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:26,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:26,047 INFO L87 Difference]: Start difference. First operand 2391 states and 4332 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 07:34:26,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:26,247 INFO L93 Difference]: Finished difference Result 2699 states and 4772 transitions. [2023-12-16 07:34:26,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:26,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 61 [2023-12-16 07:34:26,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:26,255 INFO L225 Difference]: With dead ends: 2699 [2023-12-16 07:34:26,255 INFO L226 Difference]: Without dead ends: 2437 [2023-12-16 07:34:26,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 07:34:26,257 INFO L413 NwaCegarLoop]: 4053 mSDtfsCounter, 4169 mSDsluCounter, 8058 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4179 SdHoareTripleChecker+Valid, 12111 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:26,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4179 Valid, 12111 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:26,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2023-12-16 07:34:26,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2437. [2023-12-16 07:34:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2383 states have (on average 1.8120016785564415) internal successors, (4318), 2386 states have internal predecessors, (4318), 31 states have call successors, (31), 20 states have call predecessors, (31), 21 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-16 07:34:26,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 4381 transitions. [2023-12-16 07:34:26,305 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 4381 transitions. Word has length 61 [2023-12-16 07:34:26,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:26,306 INFO L495 AbstractCegarLoop]: Abstraction has 2437 states and 4381 transitions. [2023-12-16 07:34:26,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 07:34:26,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 4381 transitions. [2023-12-16 07:34:26,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:34:26,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:26,307 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] [2023-12-16 07:34:26,312 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 07:34:26,510 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 07:34:26,510 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:26,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:26,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1646538791, now seen corresponding path program 1 times [2023-12-16 07:34:26,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:26,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069409647] [2023-12-16 07:34:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:26,513 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 07:34:26,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:26,514 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 07:34:26,521 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 07:34:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:26,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:26,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:26,655 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 07:34:26,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:26,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:26,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069409647] [2023-12-16 07:34:26,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069409647] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:26,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:26,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:34:26,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615132158] [2023-12-16 07:34:26,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:26,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:26,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:26,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:26,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:26,657 INFO L87 Difference]: Start difference. First operand 2437 states and 4381 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 07:34:26,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:26,749 INFO L93 Difference]: Finished difference Result 3036 states and 5188 transitions. [2023-12-16 07:34:26,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:26,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 61 [2023-12-16 07:34:26,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:26,758 INFO L225 Difference]: With dead ends: 3036 [2023-12-16 07:34:26,758 INFO L226 Difference]: Without dead ends: 2729 [2023-12-16 07:34:26,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 07:34:26,761 INFO L413 NwaCegarLoop]: 4139 mSDtfsCounter, 4054 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4054 SdHoareTripleChecker+Valid, 4265 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:26,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4054 Valid, 4265 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:26,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2023-12-16 07:34:26,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2727. [2023-12-16 07:34:26,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2727 states, 2625 states have (on average 1.7660952380952382) internal successors, (4636), 2631 states have internal predecessors, (4636), 58 states have call successors, (58), 40 states have call predecessors, (58), 42 states have return successors, (60), 56 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-16 07:34:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 4754 transitions. [2023-12-16 07:34:26,895 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 4754 transitions. Word has length 61 [2023-12-16 07:34:26,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:26,895 INFO L495 AbstractCegarLoop]: Abstraction has 2727 states and 4754 transitions. [2023-12-16 07:34:26,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 07:34:26,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 4754 transitions. [2023-12-16 07:34:26,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:34:26,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:26,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:26,902 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 07:34:27,101 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 07:34:27,101 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:27,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:27,102 INFO L85 PathProgramCache]: Analyzing trace with hash -373963020, now seen corresponding path program 1 times [2023-12-16 07:34:27,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:27,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986022003] [2023-12-16 07:34:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:27,103 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 07:34:27,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:27,104 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 07:34:27,134 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 07:34:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:27,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:27,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 07:34:27,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:27,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:27,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986022003] [2023-12-16 07:34:27,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986022003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:27,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:27,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:27,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291047276] [2023-12-16 07:34:27,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:27,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:27,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:27,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:27,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:27,196 INFO L87 Difference]: Start difference. First operand 2727 states and 4754 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 07:34:27,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:27,287 INFO L93 Difference]: Finished difference Result 3420 states and 5699 transitions. [2023-12-16 07:34:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:27,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 99 [2023-12-16 07:34:27,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:27,297 INFO L225 Difference]: With dead ends: 3420 [2023-12-16 07:34:27,297 INFO L226 Difference]: Without dead ends: 2823 [2023-12-16 07:34:27,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 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 07:34:27,300 INFO L413 NwaCegarLoop]: 4107 mSDtfsCounter, 20 mSDsluCounter, 8209 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12316 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:27,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12316 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:27,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2023-12-16 07:34:27,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2739. [2023-12-16 07:34:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2637 states have (on average 1.7603337125521425) internal successors, (4642), 2643 states have internal predecessors, (4642), 58 states have call successors, (58), 40 states have call predecessors, (58), 42 states have return successors, (60), 56 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-16 07:34:27,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 4760 transitions. [2023-12-16 07:34:27,372 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 4760 transitions. Word has length 99 [2023-12-16 07:34:27,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:27,372 INFO L495 AbstractCegarLoop]: Abstraction has 2739 states and 4760 transitions. [2023-12-16 07:34:27,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 07:34:27,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 4760 transitions. [2023-12-16 07:34:27,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:34:27,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:27,373 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:27,379 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 07:34:27,577 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 07:34:27,580 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:27,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:27,580 INFO L85 PathProgramCache]: Analyzing trace with hash -883841868, now seen corresponding path program 1 times [2023-12-16 07:34:27,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:27,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542974190] [2023-12-16 07:34:27,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:27,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:34:27,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:27,581 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 07:34:27,583 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 07:34:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:27,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:27,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:27,666 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 07:34:27,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:27,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:27,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542974190] [2023-12-16 07:34:27,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542974190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:27,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:27,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:27,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190407919] [2023-12-16 07:34:27,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:27,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:27,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:27,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:27,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:27,668 INFO L87 Difference]: Start difference. First operand 2739 states and 4760 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 07:34:27,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:27,754 INFO L93 Difference]: Finished difference Result 3388 states and 5630 transitions. [2023-12-16 07:34:27,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 99 [2023-12-16 07:34:27,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:27,773 INFO L225 Difference]: With dead ends: 3388 [2023-12-16 07:34:27,773 INFO L226 Difference]: Without dead ends: 2779 [2023-12-16 07:34:27,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 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 07:34:27,776 INFO L413 NwaCegarLoop]: 4105 mSDtfsCounter, 11 mSDsluCounter, 8204 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12309 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:27,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12309 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:27,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2023-12-16 07:34:27,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2747. [2023-12-16 07:34:27,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2645 states have (on average 1.7550094517958412) internal successors, (4642), 2651 states have internal predecessors, (4642), 58 states have call successors, (58), 40 states have call predecessors, (58), 42 states have return successors, (60), 56 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-16 07:34:27,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 4760 transitions. [2023-12-16 07:34:27,836 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 4760 transitions. Word has length 99 [2023-12-16 07:34:27,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:27,836 INFO L495 AbstractCegarLoop]: Abstraction has 2747 states and 4760 transitions. [2023-12-16 07:34:27,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 07:34:27,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 4760 transitions. [2023-12-16 07:34:27,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:34:27,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:27,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:27,844 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 07:34:28,041 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 07:34:28,041 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:28,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:28,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1884147980, now seen corresponding path program 1 times [2023-12-16 07:34:28,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:28,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146107794] [2023-12-16 07:34:28,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:28,042 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 07:34:28,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:28,043 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 07:34:28,044 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 07:34:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:28,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:28,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 07:34:28,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:28,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:28,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146107794] [2023-12-16 07:34:28,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146107794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:28,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:28,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:28,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879233416] [2023-12-16 07:34:28,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:28,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:28,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:28,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:28,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:28,122 INFO L87 Difference]: Start difference. First operand 2747 states and 4760 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 07:34:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:28,195 INFO L93 Difference]: Finished difference Result 3380 states and 5598 transitions. [2023-12-16 07:34:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:34:28,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 99 [2023-12-16 07:34:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:28,203 INFO L225 Difference]: With dead ends: 3380 [2023-12-16 07:34:28,203 INFO L226 Difference]: Without dead ends: 2763 [2023-12-16 07:34:28,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 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 07:34:28,206 INFO L413 NwaCegarLoop]: 4105 mSDtfsCounter, 2 mSDsluCounter, 8205 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12310 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:28,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12310 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:28,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2023-12-16 07:34:28,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2755. [2023-12-16 07:34:28,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2653 states have (on average 1.7497173011684886) internal successors, (4642), 2659 states have internal predecessors, (4642), 58 states have call successors, (58), 40 states have call predecessors, (58), 42 states have return successors, (60), 56 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-16 07:34:28,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 4760 transitions. [2023-12-16 07:34:28,256 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 4760 transitions. Word has length 99 [2023-12-16 07:34:28,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:28,256 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 4760 transitions. [2023-12-16 07:34:28,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 07:34:28,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 4760 transitions. [2023-12-16 07:34:28,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:34:28,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:28,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:28,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:28,463 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 07:34:28,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:28,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:28,464 INFO L85 PathProgramCache]: Analyzing trace with hash 590625972, now seen corresponding path program 1 times [2023-12-16 07:34:28,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:28,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425939141] [2023-12-16 07:34:28,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:28,464 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 07:34:28,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:28,465 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 07:34:28,477 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 07:34:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:28,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:34:28,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 07:34:28,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:28,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:28,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425939141] [2023-12-16 07:34:28,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425939141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:28,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:28,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:28,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423476265] [2023-12-16 07:34:28,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:28,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:28,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:28,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:28,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:28,597 INFO L87 Difference]: Start difference. First operand 2755 states and 4760 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:34:28,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:28,815 INFO L93 Difference]: Finished difference Result 3483 states and 5682 transitions. [2023-12-16 07:34:28,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:34:28,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2023-12-16 07:34:28,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:28,836 INFO L225 Difference]: With dead ends: 3483 [2023-12-16 07:34:28,836 INFO L226 Difference]: Without dead ends: 2857 [2023-12-16 07:34:28,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:34:28,841 INFO L413 NwaCegarLoop]: 4051 mSDtfsCounter, 4156 mSDsluCounter, 8054 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 12105 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:28,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 12105 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:28,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2023-12-16 07:34:28,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2825. [2023-12-16 07:34:28,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2825 states, 2719 states have (on average 1.7271055535123208) internal successors, (4696), 2725 states have internal predecessors, (4696), 58 states have call successors, (58), 44 states have call predecessors, (58), 46 states have return successors, (60), 56 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-16 07:34:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 4814 transitions. [2023-12-16 07:34:28,903 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 4814 transitions. Word has length 99 [2023-12-16 07:34:28,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:28,903 INFO L495 AbstractCegarLoop]: Abstraction has 2825 states and 4814 transitions. [2023-12-16 07:34:28,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:34:28,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 4814 transitions. [2023-12-16 07:34:28,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:34:28,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:28,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:28,911 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 07:34:29,109 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 07:34:29,109 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:29,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:29,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1024355058, now seen corresponding path program 1 times [2023-12-16 07:34:29,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:29,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489963609] [2023-12-16 07:34:29,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:29,110 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 07:34:29,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:29,111 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 07:34:29,112 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 07:34:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:29,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:34:29,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:29,270 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 07:34:29,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:29,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:29,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489963609] [2023-12-16 07:34:29,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489963609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:29,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:29,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:29,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271639900] [2023-12-16 07:34:29,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:29,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:29,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:29,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:29,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:29,271 INFO L87 Difference]: Start difference. First operand 2825 states and 4814 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 07:34:29,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:29,496 INFO L93 Difference]: Finished difference Result 4128 states and 6405 transitions. [2023-12-16 07:34:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:29,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 99 [2023-12-16 07:34:29,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:29,504 INFO L225 Difference]: With dead ends: 4128 [2023-12-16 07:34:29,504 INFO L226 Difference]: Without dead ends: 3434 [2023-12-16 07:34:29,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:29,506 INFO L413 NwaCegarLoop]: 4117 mSDtfsCounter, 4122 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4126 SdHoareTripleChecker+Valid, 8268 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:29,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4126 Valid, 8268 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2023-12-16 07:34:29,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3432. [2023-12-16 07:34:29,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3432 states, 3231 states have (on average 1.6425255338904363) internal successors, (5307), 3246 states have internal predecessors, (5307), 107 states have call successors, (107), 80 states have call predecessors, (107), 92 states have return successors, (131), 107 states have call predecessors, (131), 107 states have call successors, (131) [2023-12-16 07:34:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3432 states to 3432 states and 5545 transitions. [2023-12-16 07:34:29,599 INFO L78 Accepts]: Start accepts. Automaton has 3432 states and 5545 transitions. Word has length 99 [2023-12-16 07:34:29,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:29,599 INFO L495 AbstractCegarLoop]: Abstraction has 3432 states and 5545 transitions. [2023-12-16 07:34:29,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 07:34:29,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3432 states and 5545 transitions. [2023-12-16 07:34:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:34:29,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:29,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:29,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:29,805 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 07:34:29,805 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:29,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:29,806 INFO L85 PathProgramCache]: Analyzing trace with hash 995854768, now seen corresponding path program 1 times [2023-12-16 07:34:29,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:29,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649580482] [2023-12-16 07:34:29,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:29,806 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 07:34:29,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:29,808 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 07:34:29,832 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 07:34:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:29,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:29,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 07:34:29,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:29,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:29,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649580482] [2023-12-16 07:34:29,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649580482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:29,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:29,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:29,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130742379] [2023-12-16 07:34:29,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:29,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:29,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:29,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:29,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:29,894 INFO L87 Difference]: Start difference. First operand 3432 states and 5545 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 07:34:30,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:30,102 INFO L93 Difference]: Finished difference Result 4728 states and 7106 transitions. [2023-12-16 07:34:30,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:30,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 99 [2023-12-16 07:34:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:30,109 INFO L225 Difference]: With dead ends: 4728 [2023-12-16 07:34:30,110 INFO L226 Difference]: Without dead ends: 3427 [2023-12-16 07:34:30,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 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 07:34:30,113 INFO L413 NwaCegarLoop]: 4101 mSDtfsCounter, 152 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 8058 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:30,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 8058 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:30,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3427 states. [2023-12-16 07:34:30,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3427 to 3427. [2023-12-16 07:34:30,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3427 states, 3229 states have (on average 1.642304118922267) internal successors, (5303), 3243 states have internal predecessors, (5303), 104 states have call successors, (104), 80 states have call predecessors, (104), 92 states have return successors, (128), 104 states have call predecessors, (128), 104 states have call successors, (128) [2023-12-16 07:34:30,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 5535 transitions. [2023-12-16 07:34:30,231 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 5535 transitions. Word has length 99 [2023-12-16 07:34:30,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:30,232 INFO L495 AbstractCegarLoop]: Abstraction has 3427 states and 5535 transitions. [2023-12-16 07:34:30,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 07:34:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 5535 transitions. [2023-12-16 07:34:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:34:30,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:30,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:30,238 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 07:34:30,438 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 07:34:30,438 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:30,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:30,438 INFO L85 PathProgramCache]: Analyzing trace with hash -980429897, now seen corresponding path program 1 times [2023-12-16 07:34:30,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:30,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216186398] [2023-12-16 07:34:30,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:30,439 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 07:34:30,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:30,440 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 07:34:30,443 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 07:34:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:30,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:34:30,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 07:34:30,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:30,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:30,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216186398] [2023-12-16 07:34:30,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216186398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:30,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:30,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:30,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022418022] [2023-12-16 07:34:30,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:30,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:30,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:30,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:30,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:30,611 INFO L87 Difference]: Start difference. First operand 3427 states and 5535 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 07:34:30,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:30,962 INFO L93 Difference]: Finished difference Result 5795 states and 8408 transitions. [2023-12-16 07:34:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:30,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 101 [2023-12-16 07:34:30,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:30,975 INFO L225 Difference]: With dead ends: 5795 [2023-12-16 07:34:30,975 INFO L226 Difference]: Without dead ends: 4499 [2023-12-16 07:34:30,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 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 07:34:30,979 INFO L413 NwaCegarLoop]: 4100 mSDtfsCounter, 4117 mSDsluCounter, 4133 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4122 SdHoareTripleChecker+Valid, 8233 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:30,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4122 Valid, 8233 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:34:30,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2023-12-16 07:34:31,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 4497. [2023-12-16 07:34:31,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4497 states, 4128 states have (on average 1.5436046511627908) internal successors, (6372), 4159 states have internal predecessors, (6372), 191 states have call successors, (191), 144 states have call predecessors, (191), 176 states have return successors, (259), 195 states have call predecessors, (259), 191 states have call successors, (259) [2023-12-16 07:34:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4497 states to 4497 states and 6822 transitions. [2023-12-16 07:34:31,169 INFO L78 Accepts]: Start accepts. Automaton has 4497 states and 6822 transitions. Word has length 101 [2023-12-16 07:34:31,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:31,169 INFO L495 AbstractCegarLoop]: Abstraction has 4497 states and 6822 transitions. [2023-12-16 07:34:31,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 07:34:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 4497 states and 6822 transitions. [2023-12-16 07:34:31,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:34:31,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:31,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:31,187 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 07:34:31,376 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 07:34:31,376 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:31,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:31,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1863938887, now seen corresponding path program 1 times [2023-12-16 07:34:31,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:31,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225540152] [2023-12-16 07:34:31,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:31,377 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 07:34:31,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:31,378 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 07:34:31,379 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 07:34:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:31,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:31,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:31,470 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 07:34:31,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:31,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:31,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225540152] [2023-12-16 07:34:31,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225540152] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:31,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:31,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:31,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489471758] [2023-12-16 07:34:31,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:31,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:31,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:31,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:31,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:31,472 INFO L87 Difference]: Start difference. First operand 4497 states and 6822 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 07:34:31,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:31,665 INFO L93 Difference]: Finished difference Result 6859 states and 9663 transitions. [2023-12-16 07:34:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:31,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 101 [2023-12-16 07:34:31,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:31,675 INFO L225 Difference]: With dead ends: 6859 [2023-12-16 07:34:31,675 INFO L226 Difference]: Without dead ends: 4493 [2023-12-16 07:34:31,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:31,682 INFO L413 NwaCegarLoop]: 4100 mSDtfsCounter, 150 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 8057 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:31,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 8057 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:31,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4493 states. [2023-12-16 07:34:31,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4493 to 4493. [2023-12-16 07:34:31,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4493 states, 4127 states have (on average 1.5434940634843712) internal successors, (6370), 4157 states have internal predecessors, (6370), 188 states have call successors, (188), 144 states have call predecessors, (188), 176 states have return successors, (256), 192 states have call predecessors, (256), 188 states have call successors, (256) [2023-12-16 07:34:31,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4493 states to 4493 states and 6814 transitions. [2023-12-16 07:34:31,850 INFO L78 Accepts]: Start accepts. Automaton has 4493 states and 6814 transitions. Word has length 101 [2023-12-16 07:34:31,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:31,850 INFO L495 AbstractCegarLoop]: Abstraction has 4493 states and 6814 transitions. [2023-12-16 07:34:31,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 07:34:31,850 INFO L276 IsEmpty]: Start isEmpty. Operand 4493 states and 6814 transitions. [2023-12-16 07:34:31,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 07:34:31,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:31,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:31,855 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 07:34:32,055 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 07:34:32,056 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:32,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:32,056 INFO L85 PathProgramCache]: Analyzing trace with hash 394802738, now seen corresponding path program 1 times [2023-12-16 07:34:32,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:32,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459444484] [2023-12-16 07:34:32,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:32,057 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 07:34:32,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:32,058 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 07:34:32,065 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 07:34:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:32,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:32,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 07:34:32,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:32,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:32,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459444484] [2023-12-16 07:34:32,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459444484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:32,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:32,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:32,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142952473] [2023-12-16 07:34:32,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:32,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:32,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:32,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:32,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:32,148 INFO L87 Difference]: Start difference. First operand 4493 states and 6814 transitions. 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, (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 07:34:32,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:32,329 INFO L93 Difference]: Finished difference Result 8645 states and 11864 transitions. [2023-12-16 07:34:32,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:32,330 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, (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 103 [2023-12-16 07:34:32,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:32,339 INFO L225 Difference]: With dead ends: 8645 [2023-12-16 07:34:32,340 INFO L226 Difference]: Without dead ends: 5401 [2023-12-16 07:34:32,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:32,346 INFO L413 NwaCegarLoop]: 4214 mSDtfsCounter, 122 mSDsluCounter, 4093 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 8307 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 07:34:32,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 8307 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:32,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2023-12-16 07:34:32,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 5401. [2023-12-16 07:34:32,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 4895 states have (on average 1.4862104187946885) internal successors, (7275), 4931 states have internal predecessors, (7275), 264 states have call successors, (264), 200 states have call predecessors, (264), 240 states have return successors, (366), 270 states have call predecessors, (366), 264 states have call successors, (366) [2023-12-16 07:34:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7905 transitions. [2023-12-16 07:34:32,590 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7905 transitions. Word has length 103 [2023-12-16 07:34:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:32,590 INFO L495 AbstractCegarLoop]: Abstraction has 5401 states and 7905 transitions. [2023-12-16 07:34:32,590 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, (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 07:34:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7905 transitions. [2023-12-16 07:34:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 07:34:32,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:32,593 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 07:34:32,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-16 07:34:32,796 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 07:34:32,797 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:32,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:32,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1434226325, now seen corresponding path program 1 times [2023-12-16 07:34:32,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:32,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777834362] [2023-12-16 07:34:32,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:32,798 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 07:34:32,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:32,799 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 07:34:32,801 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 07:34:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:32,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:32,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 07:34:32,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:32,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:32,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777834362] [2023-12-16 07:34:32,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777834362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:32,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:32,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:34:32,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693438373] [2023-12-16 07:34:32,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:32,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:32,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:32,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:32,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:32,959 INFO L87 Difference]: Start difference. First operand 5401 states and 7905 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 07:34:33,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:33,141 INFO L93 Difference]: Finished difference Result 9580 states and 12945 transitions. [2023-12-16 07:34:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:33,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 129 [2023-12-16 07:34:33,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:33,162 INFO L225 Difference]: With dead ends: 9580 [2023-12-16 07:34:33,162 INFO L226 Difference]: Without dead ends: 6309 [2023-12-16 07:34:33,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 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 07:34:33,170 INFO L413 NwaCegarLoop]: 4100 mSDtfsCounter, 4020 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4020 SdHoareTripleChecker+Valid, 4225 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:33,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4020 Valid, 4225 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:33,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6309 states. [2023-12-16 07:34:33,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6309 to 6297. [2023-12-16 07:34:33,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6297 states, 5651 states have (on average 1.4399221376747477) internal successors, (8137), 5693 states have internal predecessors, (8137), 340 states have call successors, (340), 256 states have call predecessors, (340), 304 states have return successors, (462), 348 states have call predecessors, (462), 340 states have call successors, (462) [2023-12-16 07:34:33,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6297 states to 6297 states and 8939 transitions. [2023-12-16 07:34:33,378 INFO L78 Accepts]: Start accepts. Automaton has 6297 states and 8939 transitions. Word has length 129 [2023-12-16 07:34:33,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:33,379 INFO L495 AbstractCegarLoop]: Abstraction has 6297 states and 8939 transitions. [2023-12-16 07:34:33,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 07:34:33,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6297 states and 8939 transitions. [2023-12-16 07:34:33,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 07:34:33,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:33,383 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, 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] [2023-12-16 07:34:33,400 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 07:34:33,587 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 07:34:33,587 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:33,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:33,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1759432602, now seen corresponding path program 1 times [2023-12-16 07:34:33,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:33,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971722774] [2023-12-16 07:34:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:33,588 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 07:34:33,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:33,589 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 07:34:33,610 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 07:34:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:33,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:33,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:33,719 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-16 07:34:33,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:33,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:33,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971722774] [2023-12-16 07:34:33,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971722774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:33,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:33,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:34:33,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756729243] [2023-12-16 07:34:33,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:33,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:34:33,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:33,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:34:33,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:34:33,721 INFO L87 Difference]: Start difference. First operand 6297 states and 8939 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 07:34:34,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:34,046 INFO L93 Difference]: Finished difference Result 10497 states and 13986 transitions. [2023-12-16 07:34:34,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:34,046 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), 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 147 [2023-12-16 07:34:34,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:34,058 INFO L225 Difference]: With dead ends: 10497 [2023-12-16 07:34:34,058 INFO L226 Difference]: Without dead ends: 6331 [2023-12-16 07:34:34,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 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 07:34:34,067 INFO L413 NwaCegarLoop]: 4068 mSDtfsCounter, 4125 mSDsluCounter, 4114 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4131 SdHoareTripleChecker+Valid, 8182 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:34,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4131 Valid, 8182 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:34:34,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6331 states. [2023-12-16 07:34:34,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6331 to 6331. [2023-12-16 07:34:34,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6331 states, 5677 states have (on average 1.4298044741941167) internal successors, (8117), 5723 states have internal predecessors, (8117), 340 states have call successors, (340), 256 states have call predecessors, (340), 312 states have return successors, (420), 352 states have call predecessors, (420), 340 states have call successors, (420) [2023-12-16 07:34:34,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 8877 transitions. [2023-12-16 07:34:34,413 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 8877 transitions. Word has length 147 [2023-12-16 07:34:34,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:34,413 INFO L495 AbstractCegarLoop]: Abstraction has 6331 states and 8877 transitions. [2023-12-16 07:34:34,414 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), 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 07:34:34,414 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 8877 transitions. [2023-12-16 07:34:34,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 07:34:34,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:34,418 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, 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] [2023-12-16 07:34:34,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:34,622 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 07:34:34,622 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:34,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:34,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2015862314, now seen corresponding path program 1 times [2023-12-16 07:34:34,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:34,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132021244] [2023-12-16 07:34:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:34,623 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 07:34:34,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:34,624 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 07:34:34,625 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 07:34:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:34,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:34,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:34,716 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 07:34:34,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:34,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:34,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132021244] [2023-12-16 07:34:34,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132021244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:34,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:34,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995933665] [2023-12-16 07:34:34,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:34,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:34,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:34,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:34,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:34,718 INFO L87 Difference]: Start difference. First operand 6331 states and 8877 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 07:34:34,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:34,912 INFO L93 Difference]: Finished difference Result 9643 states and 12771 transitions. [2023-12-16 07:34:34,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:34,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 148 [2023-12-16 07:34:34,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:34,927 INFO L225 Difference]: With dead ends: 9643 [2023-12-16 07:34:34,927 INFO L226 Difference]: Without dead ends: 6333 [2023-12-16 07:34:34,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 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 07:34:34,934 INFO L413 NwaCegarLoop]: 4204 mSDtfsCounter, 112 mSDsluCounter, 4094 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 8298 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:34,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 8298 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:34,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6333 states. [2023-12-16 07:34:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6333 to 6331. [2023-12-16 07:34:35,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6331 states, 5677 states have (on average 1.4273383829487405) internal successors, (8103), 5723 states have internal predecessors, (8103), 340 states have call successors, (340), 256 states have call predecessors, (340), 312 states have return successors, (414), 352 states have call predecessors, (414), 340 states have call successors, (414) [2023-12-16 07:34:35,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 8857 transitions. [2023-12-16 07:34:35,143 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 8857 transitions. Word has length 148 [2023-12-16 07:34:35,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:35,144 INFO L495 AbstractCegarLoop]: Abstraction has 6331 states and 8857 transitions. [2023-12-16 07:34:35,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 07:34:35,144 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 8857 transitions. [2023-12-16 07:34:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 07:34:35,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:35,148 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:35,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:35,352 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 07:34:35,352 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:35,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:35,352 INFO L85 PathProgramCache]: Analyzing trace with hash -675773181, now seen corresponding path program 1 times [2023-12-16 07:34:35,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:35,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391867822] [2023-12-16 07:34:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:35,353 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 07:34:35,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:35,353 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 07:34:35,356 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 07:34:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:35,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:35,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:35,530 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-16 07:34:35,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:35,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:35,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391867822] [2023-12-16 07:34:35,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391867822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:35,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:35,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:34:35,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246428839] [2023-12-16 07:34:35,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:35,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:35,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:35,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:35,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:35,531 INFO L87 Difference]: Start difference. First operand 6331 states and 8857 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 07:34:35,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:35,758 INFO L93 Difference]: Finished difference Result 11306 states and 14641 transitions. [2023-12-16 07:34:35,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:35,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 174 [2023-12-16 07:34:35,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:35,878 INFO L225 Difference]: With dead ends: 11306 [2023-12-16 07:34:35,878 INFO L226 Difference]: Without dead ends: 7105 [2023-12-16 07:34:35,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 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 07:34:35,884 INFO L413 NwaCegarLoop]: 4132 mSDtfsCounter, 4002 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4002 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:35,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4002 Valid, 4257 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:35,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7105 states. [2023-12-16 07:34:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7105 to 7089. [2023-12-16 07:34:36,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 6315 states have (on average 1.3939825811559778) internal successors, (8803), 6365 states have internal predecessors, (8803), 408 states have call successors, (408), 304 states have call predecessors, (408), 364 states have return successors, (486), 420 states have call predecessors, (486), 408 states have call successors, (486) [2023-12-16 07:34:36,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 9697 transitions. [2023-12-16 07:34:36,124 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 9697 transitions. Word has length 174 [2023-12-16 07:34:36,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:36,124 INFO L495 AbstractCegarLoop]: Abstraction has 7089 states and 9697 transitions. [2023-12-16 07:34:36,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 07:34:36,124 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 9697 transitions. [2023-12-16 07:34:36,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-16 07:34:36,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:36,129 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:36,135 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 07:34:36,335 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 07:34:36,336 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:36,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:36,336 INFO L85 PathProgramCache]: Analyzing trace with hash 580990493, now seen corresponding path program 1 times [2023-12-16 07:34:36,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:36,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581829723] [2023-12-16 07:34:36,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:36,337 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 07:34:36,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:36,337 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 07:34:36,338 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 07:34:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:36,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:36,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:36,445 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-16 07:34:36,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:36,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:36,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581829723] [2023-12-16 07:34:36,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581829723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:36,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:36,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:36,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774694864] [2023-12-16 07:34:36,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:36,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:36,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:36,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:36,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:36,447 INFO L87 Difference]: Start difference. First operand 7089 states and 9697 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 07:34:36,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:36,605 INFO L93 Difference]: Finished difference Result 8869 states and 11754 transitions. [2023-12-16 07:34:36,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:36,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 177 [2023-12-16 07:34:36,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:36,613 INFO L225 Difference]: With dead ends: 8869 [2023-12-16 07:34:36,613 INFO L226 Difference]: Without dead ends: 3707 [2023-12-16 07:34:36,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 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 07:34:36,621 INFO L413 NwaCegarLoop]: 4162 mSDtfsCounter, 115 mSDsluCounter, 4078 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 8240 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:36,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 8240 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:36,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-16 07:34:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3707. [2023-12-16 07:34:36,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3707 states, 3453 states have (on average 1.5734144222415292) internal successors, (5433), 3465 states have internal predecessors, (5433), 144 states have call successors, (144), 100 states have call predecessors, (144), 108 states have return successors, (152), 142 states have call predecessors, (152), 144 states have call successors, (152) [2023-12-16 07:34:36,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 5729 transitions. [2023-12-16 07:34:36,726 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 5729 transitions. Word has length 177 [2023-12-16 07:34:36,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:36,726 INFO L495 AbstractCegarLoop]: Abstraction has 3707 states and 5729 transitions. [2023-12-16 07:34:36,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 07:34:36,726 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 5729 transitions. [2023-12-16 07:34:36,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-16 07:34:36,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:36,729 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:36,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:36,932 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 07:34:36,933 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:36,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:36,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1461755183, now seen corresponding path program 1 times [2023-12-16 07:34:36,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:36,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098542346] [2023-12-16 07:34:36,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:36,934 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 07:34:36,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:36,935 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 07:34:36,935 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 07:34:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:37,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:37,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:37,043 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-16 07:34:37,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:37,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:37,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098542346] [2023-12-16 07:34:37,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098542346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:37,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:37,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:37,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981965980] [2023-12-16 07:34:37,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:37,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:37,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:37,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:37,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:37,045 INFO L87 Difference]: Start difference. First operand 3707 states and 5729 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 07:34:37,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:37,161 INFO L93 Difference]: Finished difference Result 4725 states and 6897 transitions. [2023-12-16 07:34:37,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:37,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 178 [2023-12-16 07:34:37,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:37,167 INFO L225 Difference]: With dead ends: 4725 [2023-12-16 07:34:37,168 INFO L226 Difference]: Without dead ends: 3707 [2023-12-16 07:34:37,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 176 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 07:34:37,171 INFO L413 NwaCegarLoop]: 4194 mSDtfsCounter, 122 mSDsluCounter, 4071 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:37,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 8265 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:37,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-16 07:34:37,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3707. [2023-12-16 07:34:37,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3707 states, 3453 states have (on average 1.568780770344628) internal successors, (5417), 3465 states have internal predecessors, (5417), 144 states have call successors, (144), 100 states have call predecessors, (144), 108 states have return successors, (152), 142 states have call predecessors, (152), 144 states have call successors, (152) [2023-12-16 07:34:37,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 5713 transitions. [2023-12-16 07:34:37,279 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 5713 transitions. Word has length 178 [2023-12-16 07:34:37,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:37,280 INFO L495 AbstractCegarLoop]: Abstraction has 3707 states and 5713 transitions. [2023-12-16 07:34:37,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 07:34:37,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 5713 transitions. [2023-12-16 07:34:37,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 07:34:37,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:37,282 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:37,288 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 07:34:37,486 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 07:34:37,486 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:37,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:37,487 INFO L85 PathProgramCache]: Analyzing trace with hash 757469373, now seen corresponding path program 1 times [2023-12-16 07:34:37,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:37,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87158929] [2023-12-16 07:34:37,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:37,487 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 07:34:37,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:37,488 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 07:34:37,516 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 07:34:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:37,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:37,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 07:34:37,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:37,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:37,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87158929] [2023-12-16 07:34:37,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87158929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:37,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:37,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:37,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460855555] [2023-12-16 07:34:37,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:37,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:37,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:37,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:37,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:37,605 INFO L87 Difference]: Start difference. First operand 3707 states and 5713 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 07:34:37,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:37,905 INFO L93 Difference]: Finished difference Result 5327 states and 7560 transitions. [2023-12-16 07:34:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:37,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 180 [2023-12-16 07:34:37,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:37,912 INFO L225 Difference]: With dead ends: 5327 [2023-12-16 07:34:37,912 INFO L226 Difference]: Without dead ends: 3913 [2023-12-16 07:34:37,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 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 07:34:37,917 INFO L413 NwaCegarLoop]: 4102 mSDtfsCounter, 4071 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4071 SdHoareTripleChecker+Valid, 4221 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:37,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4071 Valid, 4221 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:37,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2023-12-16 07:34:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3911. [2023-12-16 07:34:38,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3911 states, 3623 states have (on average 1.5440242892630416) internal successors, (5594), 3638 states have internal predecessors, (5594), 163 states have call successors, (163), 114 states have call predecessors, (163), 123 states have return successors, (179), 159 states have call predecessors, (179), 163 states have call successors, (179) [2023-12-16 07:34:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 5936 transitions. [2023-12-16 07:34:38,065 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 5936 transitions. Word has length 180 [2023-12-16 07:34:38,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:38,065 INFO L495 AbstractCegarLoop]: Abstraction has 3911 states and 5936 transitions. [2023-12-16 07:34:38,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 07:34:38,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 5936 transitions. [2023-12-16 07:34:38,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 07:34:38,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:38,068 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:38,075 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 (23)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:38,272 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 07:34:38,273 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:38,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:38,273 INFO L85 PathProgramCache]: Analyzing trace with hash -853678166, now seen corresponding path program 1 times [2023-12-16 07:34:38,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:38,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185572547] [2023-12-16 07:34:38,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:38,274 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 07:34:38,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:38,275 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 07:34:38,301 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 07:34:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:38,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:34:38,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-16 07:34:38,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:34:38,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:38,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185572547] [2023-12-16 07:34:38,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [185572547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:34:38,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:34:38,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:34:38,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486927178] [2023-12-16 07:34:38,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:38,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:34:38,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:38,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:34:38,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:34:38,379 INFO L87 Difference]: Start difference. First operand 3911 states and 5936 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 07:34:38,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:38,503 INFO L93 Difference]: Finished difference Result 5353 states and 7560 transitions. [2023-12-16 07:34:38,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:34:38,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 181 [2023-12-16 07:34:38,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:38,508 INFO L225 Difference]: With dead ends: 5353 [2023-12-16 07:34:38,508 INFO L226 Difference]: Without dead ends: 3911 [2023-12-16 07:34:38,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 179 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 07:34:38,510 INFO L413 NwaCegarLoop]: 4146 mSDtfsCounter, 126 mSDsluCounter, 4055 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 8201 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:38,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 8201 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:34:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2023-12-16 07:34:38,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3911. [2023-12-16 07:34:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3911 states, 3623 states have (on average 1.5390560309136074) internal successors, (5576), 3638 states have internal predecessors, (5576), 163 states have call successors, (163), 114 states have call predecessors, (163), 123 states have return successors, (179), 159 states have call predecessors, (179), 163 states have call successors, (179) [2023-12-16 07:34:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 5918 transitions. [2023-12-16 07:34:38,621 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 5918 transitions. Word has length 181 [2023-12-16 07:34:38,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:38,622 INFO L495 AbstractCegarLoop]: Abstraction has 3911 states and 5918 transitions. [2023-12-16 07:34:38,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 07:34:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 5918 transitions. [2023-12-16 07:34:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-16 07:34:38,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:38,624 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2023-12-16 07:34:38,639 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 07:34:38,828 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 07:34:38,828 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:38,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:38,828 INFO L85 PathProgramCache]: Analyzing trace with hash 944244350, now seen corresponding path program 1 times [2023-12-16 07:34:38,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:38,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413482495] [2023-12-16 07:34:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:38,829 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 07:34:38,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:38,830 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 07:34:38,857 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 07:34:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:38,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:34:38,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:34:39,118 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 82 proven. 61 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 07:34:39,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:34:39,216 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-12-16 07:34:39,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:34:39,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413482495] [2023-12-16 07:34:39,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413482495] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 07:34:39,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 07:34:39,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2023-12-16 07:34:39,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964414154] [2023-12-16 07:34:39,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:34:39,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:34:39,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:34:39,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:34:39,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:39,218 INFO L87 Difference]: Start difference. First operand 3911 states and 5918 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-16 07:34:39,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:34:39,580 INFO L93 Difference]: Finished difference Result 3913 states and 5920 transitions. [2023-12-16 07:34:39,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:34:39,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 183 [2023-12-16 07:34:39,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:34:39,583 INFO L225 Difference]: With dead ends: 3913 [2023-12-16 07:34:39,583 INFO L226 Difference]: Without dead ends: 2122 [2023-12-16 07:34:39,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:34:39,587 INFO L413 NwaCegarLoop]: 4264 mSDtfsCounter, 4263 mSDsluCounter, 8392 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4263 SdHoareTripleChecker+Valid, 12656 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:34:39,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4263 Valid, 12656 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:34:39,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2023-12-16 07:34:39,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2122. [2023-12-16 07:34:39,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 2121 states have (on average 1.866100895803866) internal successors, (3958), 2121 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:34:39,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 3958 transitions. [2023-12-16 07:34:39,608 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 3958 transitions. Word has length 183 [2023-12-16 07:34:39,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:34:39,608 INFO L495 AbstractCegarLoop]: Abstraction has 2122 states and 3958 transitions. [2023-12-16 07:34:39,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-16 07:34:39,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 3958 transitions. [2023-12-16 07:34:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1656 [2023-12-16 07:34:39,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:34:39,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:39,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 07:34:39,832 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 07:34:39,833 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:34:39,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:34:39,834 INFO L85 PathProgramCache]: Analyzing trace with hash -460681612, now seen corresponding path program 1 times [2023-12-16 07:34:39,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:34:39,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461346455] [2023-12-16 07:34:39,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:34:39,842 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 07:34:39,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:34:39,843 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 07:34:39,847 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 07:34:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:34:40,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 07:34:40,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 07:35:14,924 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:35:14,938 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 07:35:14,957 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:35:14,960 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:35:15,130 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 07:35:15,130 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 1656 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-1 context. [2023-12-16 07:35:15,132 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:35:15,137 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] [2023-12-16 07:35:15,139 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:35:15,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:35:15 BoogieIcfgContainer [2023-12-16 07:35:15,144 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:35:15,145 INFO L158 Benchmark]: Toolchain (without parser) took 63142.94ms. Allocated memory was 308.3MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 234.0MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 666.1MB. Max. memory is 8.0GB. [2023-12-16 07:35:15,147 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 197.1MB. Free memory was 147.8MB in the beginning and 147.7MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:35:15,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2194.23ms. Allocated memory is still 308.3MB. Free memory was 233.6MB in the beginning and 117.7MB in the end (delta: 115.9MB). Peak memory consumption was 117.1MB. Max. memory is 8.0GB. [2023-12-16 07:35:15,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 345.80ms. Allocated memory was 308.3MB in the beginning and 453.0MB in the end (delta: 144.7MB). Free memory was 117.7MB in the beginning and 282.4MB in the end (delta: -164.6MB). Peak memory consumption was 25.7MB. Max. memory is 8.0GB. [2023-12-16 07:35:15,147 INFO L158 Benchmark]: Boogie Preprocessor took 484.94ms. Allocated memory is still 453.0MB. Free memory was 282.4MB in the beginning and 270.3MB in the end (delta: 12.1MB). Peak memory consumption was 76.0MB. Max. memory is 8.0GB. [2023-12-16 07:35:15,149 INFO L158 Benchmark]: RCFGBuilder took 8063.57ms. Allocated memory was 453.0MB in the beginning and 1.3GB in the end (delta: 894.4MB). Free memory was 270.3MB in the beginning and 1.1GB in the end (delta: -842.0MB). Peak memory consumption was 553.6MB. Max. memory is 8.0GB. [2023-12-16 07:35:15,149 INFO L158 Benchmark]: TraceAbstraction took 52043.36ms. Allocated memory was 1.3GB in the beginning and 2.4GB in the end (delta: 1.1GB). Free memory was 1.1GB in the beginning and 1.7GB in the end (delta: -569.9MB). Peak memory consumption was 503.8MB. Max. memory is 8.0GB. [2023-12-16 07:35:15,150 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 197.1MB. Free memory was 147.8MB in the beginning and 147.7MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2194.23ms. Allocated memory is still 308.3MB. Free memory was 233.6MB in the beginning and 117.7MB in the end (delta: 115.9MB). Peak memory consumption was 117.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 345.80ms. Allocated memory was 308.3MB in the beginning and 453.0MB in the end (delta: 144.7MB). Free memory was 117.7MB in the beginning and 282.4MB in the end (delta: -164.6MB). Peak memory consumption was 25.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 484.94ms. Allocated memory is still 453.0MB. Free memory was 282.4MB in the beginning and 270.3MB in the end (delta: 12.1MB). Peak memory consumption was 76.0MB. Max. memory is 8.0GB. * RCFGBuilder took 8063.57ms. Allocated memory was 453.0MB in the beginning and 1.3GB in the end (delta: 894.4MB). Free memory was 270.3MB in the beginning and 1.1GB in the end (delta: -842.0MB). Peak memory consumption was 553.6MB. Max. memory is 8.0GB. * TraceAbstraction took 52043.36ms. Allocated memory was 1.3GB in the beginning and 2.4GB in the end (delta: 1.1GB). Free memory was 1.1GB in the beginning and 1.7GB in the end (delta: -569.9MB). Peak memory consumption was 503.8MB. 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: 11028]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11028). Cancelled while NwaCegarLoop was analyzing trace of length 1656 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-1 context. - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was analyzing trace of length 1656 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-8-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2241 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 52.0s, OverallIterations: 25, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58848 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58774 mSDsluCounter, 221559 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 122735 mSDsCounter, 291 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2487 IncrementalHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 291 mSolverCounterUnsat, 98824 mSDtfsCounter, 2487 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2933 GetRequests, 2879 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7089occurred in iteration=19, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 24 MinimizatonAttempts, 203 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2762 NumberOfCodeBlocks, 2762 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2920 ConstructedInterpolants, 0 QuantifiedInterpolants, 4801 SizeOfPredicates, 3 NumberOfNonLiveVariables, 5745 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 25 InterpolantComputations, 24 PerfectInterpolantSequences, 1474/1535 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