/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label40+token_ring.02.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:22:09,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:22:09,441 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:22:09,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:22:09,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:22:09,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:22:09,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:22:09,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:22:09,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:22:09,476 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:22:09,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:22:09,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:22:09,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:22:09,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:22:09,479 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:22:09,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:22:09,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:22:09,480 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:22:09,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:22:09,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:22:09,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:22:09,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:22:09,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:22:09,482 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:22:09,482 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:22:09,482 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:22:09,482 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:22:09,483 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:22:09,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:22:09,483 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:22:09,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:22:09,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:22:09,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:22:09,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:22:09,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:22:09,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:22:09,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:22:09,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:22:09,485 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:22:09,485 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:22:09,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:22:09,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:22:09,486 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:22:09,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:22:09,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:22:09,486 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:22:09,486 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:22:09,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:22:09,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:22:09,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:22:09,743 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:22:09,743 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:22:09,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label40+token_ring.02.cil-1.c [2023-12-16 07:22:10,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:22:11,429 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:22:11,430 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.02.cil-1.c [2023-12-16 07:22:11,485 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf10f1c8/c69ae2b468a14f07af619b81954c5978/FLAG46a30e6be [2023-12-16 07:22:11,500 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf10f1c8/c69ae2b468a14f07af619b81954c5978 [2023-12-16 07:22:11,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:22:11,503 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:22:11,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:22:11,505 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:22:11,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:22:11,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:22:11" (1/1) ... [2023-12-16 07:22:11,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c92da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:11, skipping insertion in model container [2023-12-16 07:22:11,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:22:11" (1/1) ... [2023-12-16 07:22:11,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:22:13,575 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.02.cil-1.c[377069,377082] [2023-12-16 07:22:13,599 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.02.cil-1.c[383339,383352] [2023-12-16 07:22:13,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:22:13,731 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:22:14,505 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.02.cil-1.c[377069,377082] [2023-12-16 07:22:14,514 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.02.cil-1.c[383339,383352] [2023-12-16 07:22:14,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:22:14,624 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:22:14,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14 WrapperNode [2023-12-16 07:22:14,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:22:14,625 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:22:14,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:22:14,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:22:14,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:14,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:14,959 INFO L138 Inliner]: procedures = 49, calls = 47, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12611 [2023-12-16 07:22:14,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:22:14,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:22:14,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:22:14,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:22:14,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:14,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:15,046 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:15,160 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 07:22:15,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:15,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:15,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:15,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:15,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:15,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:15,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:22:15,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:22:15,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:22:15,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:22:15,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (1/1) ... [2023-12-16 07:22:15,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:22:15,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:22:15,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 07:22:15,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 07:22:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:22:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:22:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:22:15,901 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:22:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:22:15,902 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:22:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:22:15,902 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:22:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:22:15,902 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:22:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:22:15,902 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:22:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:22:15,902 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:22:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:22:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:22:16,032 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:22:16,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:22:25,049 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:22:25,142 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:22:25,143 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-16 07:22:25,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:22:25 BoogieIcfgContainer [2023-12-16 07:22:25,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:22:25,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:22:25,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:22:25,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:22:25,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:22:11" (1/3) ... [2023-12-16 07:22:25,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3670fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:22:25, skipping insertion in model container [2023-12-16 07:22:25,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:22:14" (2/3) ... [2023-12-16 07:22:25,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3670fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:22:25, skipping insertion in model container [2023-12-16 07:22:25,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:22:25" (3/3) ... [2023-12-16 07:22:25,154 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.02.cil-1.c [2023-12-16 07:22:25,169 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:22:25,170 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:22:25,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:22:25,259 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;@1a14d042, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:22:25,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:22:25,275 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 07:22:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:22:25,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:25,286 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 07:22:25,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:25,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:25,290 INFO L85 PathProgramCache]: Analyzing trace with hash -584044612, now seen corresponding path program 1 times [2023-12-16 07:22:25,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:25,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430114467] [2023-12-16 07:22:25,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:25,303 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:25,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:25,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:25,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:22:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:25,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:25,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:25,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:25,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:25,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430114467] [2023-12-16 07:22:25,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430114467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:25,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:25,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:25,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087315666] [2023-12-16 07:22:25,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:25,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:25,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:25,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:25,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:25,595 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 07:22:26,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:26,103 INFO L93 Difference]: Finished difference Result 4593 states and 8601 transitions. [2023-12-16 07:22:26,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:22:26,105 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 07:22:26,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:26,126 INFO L225 Difference]: With dead ends: 4593 [2023-12-16 07:22:26,126 INFO L226 Difference]: Without dead ends: 2354 [2023-12-16 07:22:26,134 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 07:22:26,137 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, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:26,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4256 Valid, 12302 Invalid, 295 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:22:26,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2023-12-16 07:22:26,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2345. [2023-12-16 07:22:26,230 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 07:22:26,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4293 transitions. [2023-12-16 07:22:26,241 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4293 transitions. Word has length 61 [2023-12-16 07:22:26,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:26,241 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4293 transitions. [2023-12-16 07:22:26,241 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 07:22:26,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4293 transitions. [2023-12-16 07:22:26,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:22:26,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:26,244 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 07:22:26,251 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 07:22:26,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:26,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:26,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:26,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1424404092, now seen corresponding path program 1 times [2023-12-16 07:22:26,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:26,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810667292] [2023-12-16 07:22:26,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:26,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:26,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:26,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:26,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 07:22:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:26,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:26,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:26,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:26,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:26,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810667292] [2023-12-16 07:22:26,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810667292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:26,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:26,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:26,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851796167] [2023-12-16 07:22:26,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:26,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:26,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:26,598 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 07:22:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:26,860 INFO L93 Difference]: Finished difference Result 2561 states and 4622 transitions. [2023-12-16 07:22:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:26,861 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 07:22:26,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:26,871 INFO L225 Difference]: With dead ends: 2561 [2023-12-16 07:22:26,871 INFO L226 Difference]: Without dead ends: 2345 [2023-12-16 07:22:26,873 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 07:22:26,874 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:26,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4174 Valid, 12131 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:26,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2023-12-16 07:22:26,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2345. [2023-12-16 07:22:26,918 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 07:22:26,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4286 transitions. [2023-12-16 07:22:26,928 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4286 transitions. Word has length 61 [2023-12-16 07:22:26,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:26,928 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4286 transitions. [2023-12-16 07:22:26,928 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 07:22:26,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4286 transitions. [2023-12-16 07:22:26,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:22:26,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:26,933 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 07:22:26,940 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 (3)] Ended with exit code 0 [2023-12-16 07:22:27,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:27,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:27,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:27,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1627740092, now seen corresponding path program 1 times [2023-12-16 07:22:27,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:27,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139873814] [2023-12-16 07:22:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:27,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:27,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:27,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:27,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 07:22:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:27,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:27,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:27,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:27,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:27,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139873814] [2023-12-16 07:22:27,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139873814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:27,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:27,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:27,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508936108] [2023-12-16 07:22:27,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:27,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:27,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:27,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:27,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:27,258 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 07:22:27,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:27,540 INFO L93 Difference]: Finished difference Result 2561 states and 4608 transitions. [2023-12-16 07:22:27,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:27,541 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 07:22:27,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:27,551 INFO L225 Difference]: With dead ends: 2561 [2023-12-16 07:22:27,551 INFO L226 Difference]: Without dead ends: 2345 [2023-12-16 07:22:27,553 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 07:22:27,554 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:27,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4168 Valid, 12124 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:27,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2023-12-16 07:22:27,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2345. [2023-12-16 07:22:27,601 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 07:22:27,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4279 transitions. [2023-12-16 07:22:27,612 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4279 transitions. Word has length 61 [2023-12-16 07:22:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:27,612 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4279 transitions. [2023-12-16 07:22:27,612 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 07:22:27,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4279 transitions. [2023-12-16 07:22:27,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:22:27,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:27,613 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 07:22:27,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:27,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:27,817 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:27,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash -728065158, now seen corresponding path program 1 times [2023-12-16 07:22:27,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:27,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318375079] [2023-12-16 07:22:27,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:27,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:27,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:27,821 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:27,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 07:22:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:27,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:27,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:27,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:27,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:27,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318375079] [2023-12-16 07:22:27,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318375079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:27,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:27,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:27,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848229115] [2023-12-16 07:22:27,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:27,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:27,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:27,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:27,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:27,944 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 07:22:28,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:28,347 INFO L93 Difference]: Finished difference Result 2607 states and 4666 transitions. [2023-12-16 07:22:28,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:28,348 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 07:22:28,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:28,357 INFO L225 Difference]: With dead ends: 2607 [2023-12-16 07:22:28,357 INFO L226 Difference]: Without dead ends: 2391 [2023-12-16 07:22:28,358 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 07:22:28,359 INFO L413 NwaCegarLoop]: 4056 mSDtfsCounter, 4175 mSDsluCounter, 8062 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 07:22:28,359 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 07:22:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2023-12-16 07:22:28,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2391. [2023-12-16 07:22:28,405 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 07:22:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 4332 transitions. [2023-12-16 07:22:28,415 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 4332 transitions. Word has length 61 [2023-12-16 07:22:28,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:28,416 INFO L495 AbstractCegarLoop]: Abstraction has 2391 states and 4332 transitions. [2023-12-16 07:22:28,416 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 07:22:28,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 4332 transitions. [2023-12-16 07:22:28,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:22:28,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:28,417 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 07:22:28,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 07:22:28,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:28,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:28,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:28,622 INFO L85 PathProgramCache]: Analyzing trace with hash -488736198, now seen corresponding path program 1 times [2023-12-16 07:22:28,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:28,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311958493] [2023-12-16 07:22:28,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:28,623 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 07:22:28,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:28,624 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:28,625 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 (6)] Waiting until timeout for monitored process [2023-12-16 07:22:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:28,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:28,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:28,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:28,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:28,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311958493] [2023-12-16 07:22:28,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311958493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:28,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:28,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:28,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577181355] [2023-12-16 07:22:28,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:28,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:28,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:28,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:28,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:28,735 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 07:22:29,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:29,006 INFO L93 Difference]: Finished difference Result 2699 states and 4772 transitions. [2023-12-16 07:22:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:29,006 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 07:22:29,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:29,017 INFO L225 Difference]: With dead ends: 2699 [2023-12-16 07:22:29,020 INFO L226 Difference]: Without dead ends: 2437 [2023-12-16 07:22:29,028 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 07:22:29,028 INFO L413 NwaCegarLoop]: 4053 mSDtfsCounter, 4169 mSDsluCounter, 8058 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:29,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4179 Valid, 12111 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:29,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2023-12-16 07:22:29,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2437. [2023-12-16 07:22:29,085 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 07:22:29,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 4381 transitions. [2023-12-16 07:22:29,094 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 4381 transitions. Word has length 61 [2023-12-16 07:22:29,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:29,095 INFO L495 AbstractCegarLoop]: Abstraction has 2437 states and 4381 transitions. [2023-12-16 07:22:29,095 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 07:22:29,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 4381 transitions. [2023-12-16 07:22:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 07:22:29,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:29,096 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 07:22:29,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:29,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:29,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:29,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:29,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1646538791, now seen corresponding path program 1 times [2023-12-16 07:22:29,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:29,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904676866] [2023-12-16 07:22:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:29,309 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:29,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:29,311 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:29,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:22:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:29,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:29,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:22:29,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:29,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:29,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904676866] [2023-12-16 07:22:29,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904676866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:29,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:29,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:22:29,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880461948] [2023-12-16 07:22:29,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:29,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:29,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:29,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:29,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:29,462 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 07:22:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:29,576 INFO L93 Difference]: Finished difference Result 3036 states and 5188 transitions. [2023-12-16 07:22:29,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:29,576 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 07:22:29,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:29,587 INFO L225 Difference]: With dead ends: 3036 [2023-12-16 07:22:29,588 INFO L226 Difference]: Without dead ends: 2729 [2023-12-16 07:22:29,590 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 07:22:29,591 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 07:22:29,591 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 07:22:29,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2023-12-16 07:22:29,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2727. [2023-12-16 07:22:29,663 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 07:22:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 4754 transitions. [2023-12-16 07:22:29,673 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 4754 transitions. Word has length 61 [2023-12-16 07:22:29,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:29,673 INFO L495 AbstractCegarLoop]: Abstraction has 2727 states and 4754 transitions. [2023-12-16 07:22:29,673 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 07:22:29,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 4754 transitions. [2023-12-16 07:22:29,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:22:29,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:29,676 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 07:22:29,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:29,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:29,880 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:29,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:29,881 INFO L85 PathProgramCache]: Analyzing trace with hash -373963020, now seen corresponding path program 1 times [2023-12-16 07:22:29,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:29,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618007676] [2023-12-16 07:22:29,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:29,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:29,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:29,884 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:29,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 07:22:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:29,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:29,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:29,991 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 07:22:29,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:29,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:29,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618007676] [2023-12-16 07:22:29,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618007676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:29,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:29,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:29,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702494188] [2023-12-16 07:22:29,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:29,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:29,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:29,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:29,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:29,993 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 07:22:30,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:30,109 INFO L93 Difference]: Finished difference Result 3420 states and 5699 transitions. [2023-12-16 07:22:30,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:30,109 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 07:22:30,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:30,121 INFO L225 Difference]: With dead ends: 3420 [2023-12-16 07:22:30,121 INFO L226 Difference]: Without dead ends: 2823 [2023-12-16 07:22:30,124 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 07:22:30,125 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 07:22:30,125 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 07:22:30,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2023-12-16 07:22:30,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2739. [2023-12-16 07:22:30,216 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 07:22:30,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 4760 transitions. [2023-12-16 07:22:30,226 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 4760 transitions. Word has length 99 [2023-12-16 07:22:30,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:30,226 INFO L495 AbstractCegarLoop]: Abstraction has 2739 states and 4760 transitions. [2023-12-16 07:22:30,227 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 07:22:30,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 4760 transitions. [2023-12-16 07:22:30,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:22:30,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:30,232 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 07:22:30,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:30,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:30,441 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:30,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash -883841868, now seen corresponding path program 1 times [2023-12-16 07:22:30,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:30,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830484322] [2023-12-16 07:22:30,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:30,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:30,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:30,446 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:30,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 07:22:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:30,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:30,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:30,543 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 07:22:30,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:30,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:30,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830484322] [2023-12-16 07:22:30,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830484322] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:30,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:30,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:30,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175697893] [2023-12-16 07:22:30,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:30,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:30,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:30,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:30,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:30,546 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 07:22:30,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:30,654 INFO L93 Difference]: Finished difference Result 3388 states and 5630 transitions. [2023-12-16 07:22:30,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:30,655 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 07:22:30,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:30,666 INFO L225 Difference]: With dead ends: 3388 [2023-12-16 07:22:30,667 INFO L226 Difference]: Without dead ends: 2779 [2023-12-16 07:22:30,670 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 07:22:30,670 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 07:22:30,671 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 07:22:30,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2023-12-16 07:22:30,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2747. [2023-12-16 07:22:30,742 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 07:22:30,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 4760 transitions. [2023-12-16 07:22:30,751 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 4760 transitions. Word has length 99 [2023-12-16 07:22:30,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:30,751 INFO L495 AbstractCegarLoop]: Abstraction has 2747 states and 4760 transitions. [2023-12-16 07:22:30,751 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 07:22:30,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 4760 transitions. [2023-12-16 07:22:30,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:22:30,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:30,753 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 07:22:30,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:30,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:30,958 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:30,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:30,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1884147980, now seen corresponding path program 1 times [2023-12-16 07:22:30,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:30,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779909936] [2023-12-16 07:22:30,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:30,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:30,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:30,963 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:31,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 07:22:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:31,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:31,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:31,225 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 07:22:31,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:31,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:31,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779909936] [2023-12-16 07:22:31,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779909936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:31,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:31,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:31,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654326423] [2023-12-16 07:22:31,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:31,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:31,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:31,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:31,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:31,228 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 07:22:31,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:31,357 INFO L93 Difference]: Finished difference Result 3380 states and 5598 transitions. [2023-12-16 07:22:31,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:22:31,357 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 07:22:31,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:31,385 INFO L225 Difference]: With dead ends: 3380 [2023-12-16 07:22:31,385 INFO L226 Difference]: Without dead ends: 2763 [2023-12-16 07:22:31,388 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 07:22:31,390 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 07:22:31,391 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 07:22:31,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2023-12-16 07:22:31,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2755. [2023-12-16 07:22:31,482 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 07:22:31,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 4760 transitions. [2023-12-16 07:22:31,493 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 4760 transitions. Word has length 99 [2023-12-16 07:22:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:31,493 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 4760 transitions. [2023-12-16 07:22:31,493 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 07:22:31,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 4760 transitions. [2023-12-16 07:22:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:22:31,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:31,495 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 07:22:31,503 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 07:22:31,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:31,700 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:31,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:31,705 INFO L85 PathProgramCache]: Analyzing trace with hash 590625972, now seen corresponding path program 1 times [2023-12-16 07:22:31,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:31,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89745837] [2023-12-16 07:22:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:31,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:31,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:31,707 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:31,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 07:22:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:31,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:22:31,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:31,889 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 07:22:31,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:31,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:31,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89745837] [2023-12-16 07:22:31,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89745837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:31,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:31,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:31,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175903652] [2023-12-16 07:22:31,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:31,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:31,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:31,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:31,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:31,892 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 07:22:32,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:32,252 INFO L93 Difference]: Finished difference Result 3483 states and 5682 transitions. [2023-12-16 07:22:32,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:22:32,253 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 07:22:32,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:32,260 INFO L225 Difference]: With dead ends: 3483 [2023-12-16 07:22:32,261 INFO L226 Difference]: Without dead ends: 2857 [2023-12-16 07:22:32,263 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 07:22:32,264 INFO L413 NwaCegarLoop]: 4051 mSDtfsCounter, 4156 mSDsluCounter, 8054 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:32,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 12105 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:32,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2023-12-16 07:22:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2825. [2023-12-16 07:22:32,353 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 07:22:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 4814 transitions. [2023-12-16 07:22:32,360 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 4814 transitions. Word has length 99 [2023-12-16 07:22:32,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:32,361 INFO L495 AbstractCegarLoop]: Abstraction has 2825 states and 4814 transitions. [2023-12-16 07:22:32,362 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 07:22:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 4814 transitions. [2023-12-16 07:22:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:22:32,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:32,364 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 07:22:32,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:32,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:32,568 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:32,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:32,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1024355058, now seen corresponding path program 1 times [2023-12-16 07:22:32,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:32,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342267461] [2023-12-16 07:22:32,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:32,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:32,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:32,571 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:32,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 07:22:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:32,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:22:32,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:32,778 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 07:22:32,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:32,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:32,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342267461] [2023-12-16 07:22:32,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342267461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:32,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:32,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:32,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110052053] [2023-12-16 07:22:32,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:32,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:32,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:32,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:32,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:32,781 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 07:22:33,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:33,098 INFO L93 Difference]: Finished difference Result 4128 states and 6405 transitions. [2023-12-16 07:22:33,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:33,099 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 07:22:33,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:33,108 INFO L225 Difference]: With dead ends: 4128 [2023-12-16 07:22:33,108 INFO L226 Difference]: Without dead ends: 3434 [2023-12-16 07:22:33,111 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 07:22:33,112 INFO L413 NwaCegarLoop]: 4117 mSDtfsCounter, 4122 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:33,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4126 Valid, 8268 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:33,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2023-12-16 07:22:33,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3432. [2023-12-16 07:22:33,240 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 07:22:33,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3432 states to 3432 states and 5545 transitions. [2023-12-16 07:22:33,250 INFO L78 Accepts]: Start accepts. Automaton has 3432 states and 5545 transitions. Word has length 99 [2023-12-16 07:22:33,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:33,250 INFO L495 AbstractCegarLoop]: Abstraction has 3432 states and 5545 transitions. [2023-12-16 07:22:33,250 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 07:22:33,250 INFO L276 IsEmpty]: Start isEmpty. Operand 3432 states and 5545 transitions. [2023-12-16 07:22:33,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 07:22:33,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:33,253 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 07:22:33,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-16 07:22:33,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:33,461 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:33,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:33,461 INFO L85 PathProgramCache]: Analyzing trace with hash 995854768, now seen corresponding path program 1 times [2023-12-16 07:22:33,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:33,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470598967] [2023-12-16 07:22:33,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:33,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:33,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:33,463 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:33,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 07:22:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:33,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:33,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:33,568 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 07:22:33,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:33,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:33,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470598967] [2023-12-16 07:22:33,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470598967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:33,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:33,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:33,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845756742] [2023-12-16 07:22:33,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:33,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:33,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:33,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:33,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:33,571 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 07:22:33,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:33,680 INFO L93 Difference]: Finished difference Result 4728 states and 7106 transitions. [2023-12-16 07:22:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:33,681 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 07:22:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:33,689 INFO L225 Difference]: With dead ends: 4728 [2023-12-16 07:22:33,689 INFO L226 Difference]: Without dead ends: 3427 [2023-12-16 07:22:33,692 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 07:22:33,693 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 07:22:33,693 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 07:22:33,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3427 states. [2023-12-16 07:22:33,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3427 to 3427. [2023-12-16 07:22:33,794 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 07:22:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 5535 transitions. [2023-12-16 07:22:33,803 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 5535 transitions. Word has length 99 [2023-12-16 07:22:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:33,804 INFO L495 AbstractCegarLoop]: Abstraction has 3427 states and 5535 transitions. [2023-12-16 07:22:33,804 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 07:22:33,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 5535 transitions. [2023-12-16 07:22:33,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:22:33,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:33,806 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 07:22:33,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:34,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:34,010 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:34,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:34,011 INFO L85 PathProgramCache]: Analyzing trace with hash -980429897, now seen corresponding path program 1 times [2023-12-16 07:22:34,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:34,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632748866] [2023-12-16 07:22:34,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:34,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:34,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:34,013 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:34,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 07:22:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:34,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:22:34,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:34,287 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 07:22:34,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:34,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:34,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632748866] [2023-12-16 07:22:34,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632748866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:34,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:34,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:34,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997554383] [2023-12-16 07:22:34,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:34,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:34,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:34,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:34,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:34,290 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 07:22:34,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:34,637 INFO L93 Difference]: Finished difference Result 5795 states and 8408 transitions. [2023-12-16 07:22:34,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:34,637 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 07:22:34,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:34,649 INFO L225 Difference]: With dead ends: 5795 [2023-12-16 07:22:34,649 INFO L226 Difference]: Without dead ends: 4499 [2023-12-16 07:22:34,653 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 07:22:34,653 INFO L413 NwaCegarLoop]: 4100 mSDtfsCounter, 4117 mSDsluCounter, 4133 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 07:22:34,654 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 07:22:34,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2023-12-16 07:22:34,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 4497. [2023-12-16 07:22:34,813 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 07:22:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4497 states to 4497 states and 6822 transitions. [2023-12-16 07:22:34,823 INFO L78 Accepts]: Start accepts. Automaton has 4497 states and 6822 transitions. Word has length 101 [2023-12-16 07:22:34,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:34,823 INFO L495 AbstractCegarLoop]: Abstraction has 4497 states and 6822 transitions. [2023-12-16 07:22:34,823 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 07:22:34,823 INFO L276 IsEmpty]: Start isEmpty. Operand 4497 states and 6822 transitions. [2023-12-16 07:22:34,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 07:22:34,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:34,835 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 07:22:34,842 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 (14)] Ended with exit code 0 [2023-12-16 07:22:35,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:35,036 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:35,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:35,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1863938887, now seen corresponding path program 1 times [2023-12-16 07:22:35,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:35,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544966219] [2023-12-16 07:22:35,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:35,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:35,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:35,038 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:35,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 07:22:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:35,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:35,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:35,132 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 07:22:35,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:35,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:35,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544966219] [2023-12-16 07:22:35,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544966219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:35,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:35,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:35,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265676680] [2023-12-16 07:22:35,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:35,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:35,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:35,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:35,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:35,134 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 07:22:35,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:35,294 INFO L93 Difference]: Finished difference Result 6859 states and 9663 transitions. [2023-12-16 07:22:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:35,295 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 07:22:35,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:35,306 INFO L225 Difference]: With dead ends: 6859 [2023-12-16 07:22:35,306 INFO L226 Difference]: Without dead ends: 4493 [2023-12-16 07:22:35,312 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 07:22:35,313 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 07:22:35,313 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 07:22:35,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4493 states. [2023-12-16 07:22:35,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4493 to 4493. [2023-12-16 07:22:35,473 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 07:22:35,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4493 states to 4493 states and 6814 transitions. [2023-12-16 07:22:35,484 INFO L78 Accepts]: Start accepts. Automaton has 4493 states and 6814 transitions. Word has length 101 [2023-12-16 07:22:35,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:35,484 INFO L495 AbstractCegarLoop]: Abstraction has 4493 states and 6814 transitions. [2023-12-16 07:22:35,484 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 07:22:35,484 INFO L276 IsEmpty]: Start isEmpty. Operand 4493 states and 6814 transitions. [2023-12-16 07:22:35,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 07:22:35,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:35,488 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 07:22:35,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:35,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:35,693 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:35,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:35,693 INFO L85 PathProgramCache]: Analyzing trace with hash 394802738, now seen corresponding path program 1 times [2023-12-16 07:22:35,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:35,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566878910] [2023-12-16 07:22:35,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:35,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:35,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:35,695 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:35,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 07:22:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:35,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:35,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:35,788 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 07:22:35,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:35,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:35,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566878910] [2023-12-16 07:22:35,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566878910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:35,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:35,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:35,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679055319] [2023-12-16 07:22:35,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:35,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:35,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:35,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:35,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:35,790 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 07:22:36,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:36,122 INFO L93 Difference]: Finished difference Result 8645 states and 11864 transitions. [2023-12-16 07:22:36,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:36,123 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 07:22:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:36,141 INFO L225 Difference]: With dead ends: 8645 [2023-12-16 07:22:36,141 INFO L226 Difference]: Without dead ends: 5401 [2023-12-16 07:22:36,149 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 07:22:36,150 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 07:22:36,150 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 07:22:36,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2023-12-16 07:22:36,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 5401. [2023-12-16 07:22:36,353 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 07:22:36,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7905 transitions. [2023-12-16 07:22:36,371 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7905 transitions. Word has length 103 [2023-12-16 07:22:36,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:36,371 INFO L495 AbstractCegarLoop]: Abstraction has 5401 states and 7905 transitions. [2023-12-16 07:22:36,372 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 07:22:36,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7905 transitions. [2023-12-16 07:22:36,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 07:22:36,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:36,381 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 07:22:36,388 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 07:22:36,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:36,586 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:36,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:36,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1434226325, now seen corresponding path program 1 times [2023-12-16 07:22:36,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:36,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495603929] [2023-12-16 07:22:36,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:36,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:36,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:36,588 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:36,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 07:22:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:36,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:36,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:36,791 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 07:22:36,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:36,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:36,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495603929] [2023-12-16 07:22:36,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495603929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:36,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:36,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:22:36,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497066302] [2023-12-16 07:22:36,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:36,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:36,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:36,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:36,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:36,794 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 07:22:37,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:37,059 INFO L93 Difference]: Finished difference Result 9580 states and 12945 transitions. [2023-12-16 07:22:37,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:37,060 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 07:22:37,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:37,085 INFO L225 Difference]: With dead ends: 9580 [2023-12-16 07:22:37,085 INFO L226 Difference]: Without dead ends: 6309 [2023-12-16 07:22:37,094 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 07:22:37,095 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 07:22:37,095 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 07:22:37,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6309 states. [2023-12-16 07:22:37,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6309 to 6297. [2023-12-16 07:22:37,501 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 07:22:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6297 states to 6297 states and 8939 transitions. [2023-12-16 07:22:37,516 INFO L78 Accepts]: Start accepts. Automaton has 6297 states and 8939 transitions. Word has length 129 [2023-12-16 07:22:37,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:37,516 INFO L495 AbstractCegarLoop]: Abstraction has 6297 states and 8939 transitions. [2023-12-16 07:22:37,516 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 07:22:37,516 INFO L276 IsEmpty]: Start isEmpty. Operand 6297 states and 8939 transitions. [2023-12-16 07:22:37,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 07:22:37,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:37,522 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 07:22:37,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:37,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:37,727 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:37,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:37,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1759432602, now seen corresponding path program 1 times [2023-12-16 07:22:37,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:37,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799576981] [2023-12-16 07:22:37,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:37,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:37,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:37,729 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:37,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 07:22:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:37,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:37,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:37,891 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 07:22:37,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:37,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:37,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799576981] [2023-12-16 07:22:37,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799576981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:37,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:37,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:22:37,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542503936] [2023-12-16 07:22:37,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:37,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:22:37,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:37,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:22:37,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:22:37,894 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 07:22:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:38,309 INFO L93 Difference]: Finished difference Result 10497 states and 13986 transitions. [2023-12-16 07:22:38,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:38,310 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 07:22:38,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:38,334 INFO L225 Difference]: With dead ends: 10497 [2023-12-16 07:22:38,335 INFO L226 Difference]: Without dead ends: 6331 [2023-12-16 07:22:38,348 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 07:22:38,348 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:22:38,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4131 Valid, 8182 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:22:38,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6331 states. [2023-12-16 07:22:38,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6331 to 6331. [2023-12-16 07:22:38,614 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 07:22:38,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 8877 transitions. [2023-12-16 07:22:38,732 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 8877 transitions. Word has length 147 [2023-12-16 07:22:38,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:38,732 INFO L495 AbstractCegarLoop]: Abstraction has 6331 states and 8877 transitions. [2023-12-16 07:22:38,733 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 07:22:38,733 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 8877 transitions. [2023-12-16 07:22:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 07:22:38,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:38,739 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 07:22:38,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-16 07:22:38,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:38,944 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:38,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:38,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2015862314, now seen corresponding path program 1 times [2023-12-16 07:22:38,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:38,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986918928] [2023-12-16 07:22:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:38,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:38,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:38,946 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:38,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 07:22:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:39,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:39,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:39,079 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 07:22:39,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:39,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:39,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986918928] [2023-12-16 07:22:39,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986918928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:39,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:39,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:39,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594315930] [2023-12-16 07:22:39,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:39,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:39,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:39,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:39,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:39,084 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 07:22:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:39,448 INFO L93 Difference]: Finished difference Result 9643 states and 12771 transitions. [2023-12-16 07:22:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:39,449 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 07:22:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:39,469 INFO L225 Difference]: With dead ends: 9643 [2023-12-16 07:22:39,470 INFO L226 Difference]: Without dead ends: 6333 [2023-12-16 07:22:39,479 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 07:22:39,479 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 07:22:39,479 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 07:22:39,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6333 states. [2023-12-16 07:22:39,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6333 to 6331. [2023-12-16 07:22:39,770 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 07:22:39,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 8857 transitions. [2023-12-16 07:22:39,783 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 8857 transitions. Word has length 148 [2023-12-16 07:22:39,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:39,783 INFO L495 AbstractCegarLoop]: Abstraction has 6331 states and 8857 transitions. [2023-12-16 07:22:39,783 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 07:22:39,783 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 8857 transitions. [2023-12-16 07:22:39,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 07:22:39,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:39,789 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 07:22:39,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:39,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:39,994 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:39,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:39,994 INFO L85 PathProgramCache]: Analyzing trace with hash -675773181, now seen corresponding path program 1 times [2023-12-16 07:22:39,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:39,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224751213] [2023-12-16 07:22:39,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:39,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:39,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:39,996 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:40,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 07:22:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:40,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:40,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:40,240 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 07:22:40,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:40,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:40,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224751213] [2023-12-16 07:22:40,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224751213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:40,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:40,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:22:40,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112723550] [2023-12-16 07:22:40,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:40,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:40,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:40,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:40,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:40,244 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 07:22:40,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:40,643 INFO L93 Difference]: Finished difference Result 11306 states and 14641 transitions. [2023-12-16 07:22:40,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:40,644 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 07:22:40,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:40,660 INFO L225 Difference]: With dead ends: 11306 [2023-12-16 07:22:40,660 INFO L226 Difference]: Without dead ends: 7105 [2023-12-16 07:22:40,668 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 07:22:40,669 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 07:22:40,669 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 07:22:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7105 states. [2023-12-16 07:22:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7105 to 7089. [2023-12-16 07:22:40,976 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 07:22:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 9697 transitions. [2023-12-16 07:22:40,990 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 9697 transitions. Word has length 174 [2023-12-16 07:22:40,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:40,990 INFO L495 AbstractCegarLoop]: Abstraction has 7089 states and 9697 transitions. [2023-12-16 07:22:40,990 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 07:22:40,990 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 9697 transitions. [2023-12-16 07:22:40,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-16 07:22:40,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:40,997 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 07:22:41,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:41,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:41,202 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:41,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:41,203 INFO L85 PathProgramCache]: Analyzing trace with hash 580990493, now seen corresponding path program 1 times [2023-12-16 07:22:41,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:41,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91567716] [2023-12-16 07:22:41,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:41,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:41,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:41,205 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:41,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 07:22:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:41,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:41,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:41,339 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 07:22:41,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:41,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:41,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91567716] [2023-12-16 07:22:41,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91567716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:41,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:41,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:41,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210673300] [2023-12-16 07:22:41,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:41,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:41,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:41,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:41,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:41,341 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 07:22:41,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:41,551 INFO L93 Difference]: Finished difference Result 8869 states and 11754 transitions. [2023-12-16 07:22:41,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:41,552 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 07:22:41,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:41,562 INFO L225 Difference]: With dead ends: 8869 [2023-12-16 07:22:41,562 INFO L226 Difference]: Without dead ends: 3707 [2023-12-16 07:22:41,571 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 07:22:41,572 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 07:22:41,572 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 07:22:41,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-16 07:22:41,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3707. [2023-12-16 07:22:41,702 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 07:22:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 5729 transitions. [2023-12-16 07:22:41,708 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 5729 transitions. Word has length 177 [2023-12-16 07:22:41,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:41,709 INFO L495 AbstractCegarLoop]: Abstraction has 3707 states and 5729 transitions. [2023-12-16 07:22:41,709 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 07:22:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 5729 transitions. [2023-12-16 07:22:41,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-16 07:22:41,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:41,713 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 07:22:41,721 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 07:22:41,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:41,919 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:41,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:41,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1461755183, now seen corresponding path program 1 times [2023-12-16 07:22:41,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:41,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715788492] [2023-12-16 07:22:41,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:41,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:41,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:41,921 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:41,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 07:22:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:42,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:42,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:42,052 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 07:22:42,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:42,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:42,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715788492] [2023-12-16 07:22:42,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715788492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:42,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:42,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:42,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903361142] [2023-12-16 07:22:42,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:42,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:42,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:42,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:42,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:42,054 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 07:22:42,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:42,294 INFO L93 Difference]: Finished difference Result 4725 states and 6897 transitions. [2023-12-16 07:22:42,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:42,295 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 07:22:42,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:42,302 INFO L225 Difference]: With dead ends: 4725 [2023-12-16 07:22:42,302 INFO L226 Difference]: Without dead ends: 3707 [2023-12-16 07:22:42,305 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 07:22:42,305 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 07:22:42,306 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 07:22:42,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-16 07:22:42,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3707. [2023-12-16 07:22:42,439 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 07:22:42,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 5713 transitions. [2023-12-16 07:22:42,445 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 5713 transitions. Word has length 178 [2023-12-16 07:22:42,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:42,445 INFO L495 AbstractCegarLoop]: Abstraction has 3707 states and 5713 transitions. [2023-12-16 07:22:42,445 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 07:22:42,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 5713 transitions. [2023-12-16 07:22:42,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 07:22:42,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:42,449 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 07:22:42,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 07:22:42,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:42,654 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:42,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:42,654 INFO L85 PathProgramCache]: Analyzing trace with hash 757469373, now seen corresponding path program 1 times [2023-12-16 07:22:42,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:42,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219357370] [2023-12-16 07:22:42,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:42,655 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:42,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:42,656 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:42,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 07:22:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:42,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:42,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:42,809 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 07:22:42,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:42,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:42,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219357370] [2023-12-16 07:22:42,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219357370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:42,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:42,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:42,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171780269] [2023-12-16 07:22:42,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:42,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:42,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:42,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:42,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:42,811 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 07:22:43,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:43,025 INFO L93 Difference]: Finished difference Result 5327 states and 7560 transitions. [2023-12-16 07:22:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:43,026 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 07:22:43,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:43,035 INFO L225 Difference]: With dead ends: 5327 [2023-12-16 07:22:43,035 INFO L226 Difference]: Without dead ends: 3913 [2023-12-16 07:22:43,040 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 07:22:43,041 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 07:22:43,041 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 07:22:43,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2023-12-16 07:22:43,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3911. [2023-12-16 07:22:43,187 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 07:22:43,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 5936 transitions. [2023-12-16 07:22:43,194 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 5936 transitions. Word has length 180 [2023-12-16 07:22:43,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:43,194 INFO L495 AbstractCegarLoop]: Abstraction has 3911 states and 5936 transitions. [2023-12-16 07:22:43,195 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 07:22:43,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 5936 transitions. [2023-12-16 07:22:43,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 07:22:43,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:43,198 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 07:22:43,203 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 07:22:43,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:43,403 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:43,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:43,404 INFO L85 PathProgramCache]: Analyzing trace with hash -853678166, now seen corresponding path program 1 times [2023-12-16 07:22:43,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:43,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131081344] [2023-12-16 07:22:43,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:43,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:43,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:43,406 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:43,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 07:22:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:43,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:22:43,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:43,542 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 07:22:43,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:22:43,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:43,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131081344] [2023-12-16 07:22:43,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131081344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:22:43,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:22:43,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:22:43,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22408835] [2023-12-16 07:22:43,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:43,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:22:43,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:22:43,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:22:43,544 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 07:22:43,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:43,677 INFO L93 Difference]: Finished difference Result 5353 states and 7560 transitions. [2023-12-16 07:22:43,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:22:43,678 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 07:22:43,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:43,685 INFO L225 Difference]: With dead ends: 5353 [2023-12-16 07:22:43,686 INFO L226 Difference]: Without dead ends: 3911 [2023-12-16 07:22:43,690 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 07:22:43,690 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 07:22:43,691 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 07:22:43,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2023-12-16 07:22:43,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3911. [2023-12-16 07:22:43,843 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 07:22:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 5918 transitions. [2023-12-16 07:22:43,850 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 5918 transitions. Word has length 181 [2023-12-16 07:22:43,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:43,850 INFO L495 AbstractCegarLoop]: Abstraction has 3911 states and 5918 transitions. [2023-12-16 07:22:43,850 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 07:22:43,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 5918 transitions. [2023-12-16 07:22:43,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-16 07:22:43,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:43,854 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 07:22:43,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-16 07:22:44,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:44,058 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:44,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:44,059 INFO L85 PathProgramCache]: Analyzing trace with hash 944244350, now seen corresponding path program 1 times [2023-12-16 07:22:44,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:44,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351504997] [2023-12-16 07:22:44,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:44,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:44,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:44,060 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:44,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 07:22:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:44,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:22:44,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:22:44,451 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 07:22:44,451 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:22:44,563 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 07:22:44,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:22:44,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351504997] [2023-12-16 07:22:44,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351504997] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 07:22:44,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 07:22:44,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2023-12-16 07:22:44,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506695357] [2023-12-16 07:22:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:22:44,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:22:44,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:22:44,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:22:44,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:22:44,565 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 07:22:44,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:22:44,963 INFO L93 Difference]: Finished difference Result 3913 states and 5920 transitions. [2023-12-16 07:22:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:22:44,964 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 07:22:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:22:44,967 INFO L225 Difference]: With dead ends: 3913 [2023-12-16 07:22:44,967 INFO L226 Difference]: Without dead ends: 2122 [2023-12-16 07:22:44,970 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 07:22:44,971 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 07:22:44,971 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 07:22:44,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2023-12-16 07:22:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2122. [2023-12-16 07:22:44,995 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 07:22:44,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 3958 transitions. [2023-12-16 07:22:44,999 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 3958 transitions. Word has length 183 [2023-12-16 07:22:44,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:22:44,999 INFO L495 AbstractCegarLoop]: Abstraction has 2122 states and 3958 transitions. [2023-12-16 07:22:44,999 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 07:22:44,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 3958 transitions. [2023-12-16 07:22:45,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1652 [2023-12-16 07:22:45,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:22:45,065 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] [2023-12-16 07:22:45,069 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 07:22:45,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:45,269 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:22:45,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:22:45,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1132919140, now seen corresponding path program 1 times [2023-12-16 07:22:45,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:22:45,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39272152] [2023-12-16 07:22:45,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:22:45,284 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:22:45,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:22:45,285 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:22:45,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 07:22:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:22:45,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 07:22:45,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 07:23:04,499 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 07:23:04,499 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 07:23:04,513 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:23:04,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 07:23:04,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:23:04,719 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 1652 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-9-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-8-1 context. [2023-12-16 07:23:04,721 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:23:04,725 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 07:23:04,727 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:23:04,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:23:04 BoogieIcfgContainer [2023-12-16 07:23:04,730 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:23:04,731 INFO L158 Benchmark]: Toolchain (without parser) took 53227.69ms. Allocated memory was 252.7MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 180.7MB in the beginning and 703.1MB in the end (delta: -522.4MB). Peak memory consumption was 984.1MB. Max. memory is 8.0GB. [2023-12-16 07:23:04,733 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 190.8MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:23:04,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3119.25ms. Allocated memory was 252.7MB in the beginning and 350.2MB in the end (delta: 97.5MB). Free memory was 180.7MB in the beginning and 247.3MB in the end (delta: -66.6MB). Peak memory consumption was 145.8MB. Max. memory is 8.0GB. [2023-12-16 07:23:04,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 334.29ms. Allocated memory is still 350.2MB. Free memory was 247.3MB in the beginning and 168.1MB in the end (delta: 79.2MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2023-12-16 07:23:04,734 INFO L158 Benchmark]: Boogie Preprocessor took 780.58ms. Allocated memory was 350.2MB in the beginning and 700.4MB in the end (delta: 350.2MB). Free memory was 168.1MB in the beginning and 527.7MB in the end (delta: -359.7MB). Peak memory consumption was 119.5MB. Max. memory is 8.0GB. [2023-12-16 07:23:04,735 INFO L158 Benchmark]: RCFGBuilder took 9403.10ms. Allocated memory was 700.4MB in the beginning and 885.0MB in the end (delta: 184.5MB). Free memory was 527.7MB in the beginning and 540.9MB in the end (delta: -13.1MB). Peak memory consumption was 522.2MB. Max. memory is 8.0GB. [2023-12-16 07:23:04,735 INFO L158 Benchmark]: TraceAbstraction took 39582.34ms. Allocated memory was 885.0MB in the beginning and 1.8GB in the end (delta: 873.5MB). Free memory was 540.3MB in the beginning and 703.1MB in the end (delta: -162.8MB). Peak memory consumption was 710.4MB. Max. memory is 8.0GB. [2023-12-16 07:23:04,736 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 190.8MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 3119.25ms. Allocated memory was 252.7MB in the beginning and 350.2MB in the end (delta: 97.5MB). Free memory was 180.7MB in the beginning and 247.3MB in the end (delta: -66.6MB). Peak memory consumption was 145.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 334.29ms. Allocated memory is still 350.2MB. Free memory was 247.3MB in the beginning and 168.1MB in the end (delta: 79.2MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 780.58ms. Allocated memory was 350.2MB in the beginning and 700.4MB in the end (delta: 350.2MB). Free memory was 168.1MB in the beginning and 527.7MB in the end (delta: -359.7MB). Peak memory consumption was 119.5MB. Max. memory is 8.0GB. * RCFGBuilder took 9403.10ms. Allocated memory was 700.4MB in the beginning and 885.0MB in the end (delta: 184.5MB). Free memory was 527.7MB in the beginning and 540.9MB in the end (delta: -13.1MB). Peak memory consumption was 522.2MB. Max. memory is 8.0GB. * TraceAbstraction took 39582.34ms. Allocated memory was 885.0MB in the beginning and 1.8GB in the end (delta: 873.5MB). Free memory was 540.3MB in the beginning and 703.1MB in the end (delta: -162.8MB). Peak memory consumption was 710.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11016]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11016). Cancelled while NwaCegarLoop was analyzing trace of length 1652 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-9-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 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 1652 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-9-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 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: 39.5s, OverallIterations: 25, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58848 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58774 mSDsluCounter, 221559 SdHoareTripleChecker+Invalid, 2.0s 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, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2933 GetRequests, 2879 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s 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: 3.6s AutomataMinimizationTime, 24 MinimizatonAttempts, 203 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.9s 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