/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/eca-rers2012/Problem14_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 11:58:21,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 11:58:21,356 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 11:58:21,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 11:58:21,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 11:58:21,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 11:58:21,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 11:58:21,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 11:58:21,387 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 11:58:21,390 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 11:58:21,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 11:58:21,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 11:58:21,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 11:58:21,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 11:58:21,392 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 11:58:21,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 11:58:21,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 11:58:21,393 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 11:58:21,393 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 11:58:21,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 11:58:21,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 11:58:21,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 11:58:21,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 11:58:21,394 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 11:58:21,394 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 11:58:21,394 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 11:58:21,394 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 11:58:21,394 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 11:58:21,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 11:58:21,395 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 11:58:21,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 11:58:21,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 11:58:21,396 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 11:58:21,396 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 11:58:21,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 11:58:21,396 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 11:58:21,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 11:58:21,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 11:58:21,396 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 11:58:21,396 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 11:58:21,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 11:58:21,397 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 11:58:21,397 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 11:58:21,397 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 11:58:21,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 11:58:21,397 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 11:58:21,397 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 11:58:21,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 11:58:21,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 11:58:21,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 11:58:21,603 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 11:58:21,603 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 11:58:21,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label00.c [2023-12-22 11:58:22,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 11:58:22,793 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 11:58:22,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label00.c [2023-12-22 11:58:22,803 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de38932c9/a8687130388f425ab0b0fc0a0f9d455d/FLAG87d8ac56c [2023-12-22 11:58:22,812 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de38932c9/a8687130388f425ab0b0fc0a0f9d455d [2023-12-22 11:58:22,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 11:58:22,824 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 11:58:22,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 11:58:22,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 11:58:22,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 11:58:22,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:58:22" (1/1) ... [2023-12-22 11:58:22,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24659a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:22, skipping insertion in model container [2023-12-22 11:58:22,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:58:22" (1/1) ... [2023-12-22 11:58:22,877 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 11:58:23,020 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label00.c[5469,5482] [2023-12-22 11:58:23,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 11:58:23,208 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 11:58:23,230 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label00.c[5469,5482] [2023-12-22 11:58:23,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 11:58:23,305 INFO L206 MainTranslator]: Completed translation [2023-12-22 11:58:23,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23 WrapperNode [2023-12-22 11:58:23,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 11:58:23,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 11:58:23,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 11:58:23,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 11:58:23,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,362 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 857 [2023-12-22 11:58:23,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 11:58:23,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 11:58:23,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 11:58:23,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 11:58:23,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,383 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,400 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]. [2023-12-22 11:58:23,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 11:58:23,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 11:58:23,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 11:58:23,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 11:58:23,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (1/1) ... [2023-12-22 11:58:23,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 11:58:23,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 11:58:23,486 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) [2023-12-22 11:58:23,501 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 [2023-12-22 11:58:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 11:58:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 11:58:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 11:58:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 11:58:23,572 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 11:58:23,573 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 11:58:25,907 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 11:58:25,948 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 11:58:25,948 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 11:58:25,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:58:25 BoogieIcfgContainer [2023-12-22 11:58:25,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 11:58:25,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 11:58:25,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 11:58:25,952 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 11:58:25,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:58:22" (1/3) ... [2023-12-22 11:58:25,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a33e1a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:58:25, skipping insertion in model container [2023-12-22 11:58:25,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:58:23" (2/3) ... [2023-12-22 11:58:25,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a33e1a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:58:25, skipping insertion in model container [2023-12-22 11:58:25,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:58:25" (3/3) ... [2023-12-22 11:58:25,954 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label00.c [2023-12-22 11:58:25,968 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 11:58:25,969 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 11:58:26,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 11:58:26,024 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;@5b6fc4b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 11:58:26,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 11:58:26,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 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) [2023-12-22 11:58:26,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-22 11:58:26,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:26,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:58:26,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:26,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:26,043 INFO L85 PathProgramCache]: Analyzing trace with hash 379433848, now seen corresponding path program 1 times [2023-12-22 11:58:26,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:26,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547991205] [2023-12-22 11:58:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:26,058 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 [2023-12-22 11:58:26,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:26,079 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) [2023-12-22 11:58:26,082 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 [2023-12-22 11:58:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:26,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 11:58:26,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:26,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:58:26,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:58:26,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:26,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547991205] [2023-12-22 11:58:26,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547991205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:58:26,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:58:26,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:58:26,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46225601] [2023-12-22 11:58:26,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:26,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 11:58:26,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:26,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 11:58:26,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 11:58:26,201 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2023-12-22 11:58:26,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:58:26,248 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-12-22 11:58:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 11:58:26,250 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-22 11:58:26,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:58:26,256 INFO L225 Difference]: With dead ends: 365 [2023-12-22 11:58:26,256 INFO L226 Difference]: Without dead ends: 181 [2023-12-22 11:58:26,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 11:58:26,260 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 11:58:26,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 11:58:26,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-22 11:58:26,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-22 11:58:26,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 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) [2023-12-22 11:58:26,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-12-22 11:58:26,305 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 52 [2023-12-22 11:58:26,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:58:26,305 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-12-22 11:58:26,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2023-12-22 11:58:26,306 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-12-22 11:58:26,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-22 11:58:26,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:26,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:58:26,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 11:58:26,509 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 [2023-12-22 11:58:26,510 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:26,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:26,511 INFO L85 PathProgramCache]: Analyzing trace with hash 919091893, now seen corresponding path program 1 times [2023-12-22 11:58:26,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:26,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838799389] [2023-12-22 11:58:26,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:26,512 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 [2023-12-22 11:58:26,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:26,521 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) [2023-12-22 11:58:26,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 11:58:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:26,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:58:26,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:58:26,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:58:26,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:26,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838799389] [2023-12-22 11:58:26,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838799389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:58:26,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:58:26,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:58:26,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736942370] [2023-12-22 11:58:26,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:26,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:58:26,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:26,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:58:26,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:26,689 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 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) [2023-12-22 11:58:29,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:58:29,478 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2023-12-22 11:58:29,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:58:29,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-22 11:58:29,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:58:29,481 INFO L225 Difference]: With dead ends: 539 [2023-12-22 11:58:29,481 INFO L226 Difference]: Without dead ends: 359 [2023-12-22 11:58:29,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:29,482 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 138 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 11:58:29,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 64 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 11:58:29,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-22 11:58:29,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-22 11:58:29,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.488826815642458) internal successors, (533), 358 states have internal predecessors, (533), 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) [2023-12-22 11:58:29,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 533 transitions. [2023-12-22 11:58:29,494 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 533 transitions. Word has length 52 [2023-12-22 11:58:29,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:58:29,494 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 533 transitions. [2023-12-22 11:58:29,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 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) [2023-12-22 11:58:29,494 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 533 transitions. [2023-12-22 11:58:29,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-22 11:58:29,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:29,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 11:58:29,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 11:58:29,700 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 [2023-12-22 11:58:29,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:29,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash 303814664, now seen corresponding path program 1 times [2023-12-22 11:58:29,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:29,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040834778] [2023-12-22 11:58:29,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:29,702 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 [2023-12-22 11:58:29,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:29,704 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) [2023-12-22 11:58:29,705 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 [2023-12-22 11:58:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:29,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:58:29,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:58:29,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:58:29,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:29,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040834778] [2023-12-22 11:58:29,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040834778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:58:29,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:58:29,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:58:29,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509864074] [2023-12-22 11:58:29,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:29,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:58:29,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:29,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:58:29,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:29,858 INFO L87 Difference]: Start difference. First operand 359 states and 533 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2023-12-22 11:58:32,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:58:32,755 INFO L93 Difference]: Finished difference Result 1073 states and 1596 transitions. [2023-12-22 11:58:32,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:58:32,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-22 11:58:32,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:58:32,758 INFO L225 Difference]: With dead ends: 1073 [2023-12-22 11:58:32,758 INFO L226 Difference]: Without dead ends: 715 [2023-12-22 11:58:32,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:32,760 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 116 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-22 11:58:32,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 99 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-22 11:58:32,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-22 11:58:32,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-12-22 11:58:32,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.3473389355742298) internal successors, (962), 714 states have internal predecessors, (962), 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) [2023-12-22 11:58:32,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 962 transitions. [2023-12-22 11:58:32,779 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 962 transitions. Word has length 117 [2023-12-22 11:58:32,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:58:32,779 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 962 transitions. [2023-12-22 11:58:32,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2023-12-22 11:58:32,779 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 962 transitions. [2023-12-22 11:58:32,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-22 11:58:32,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:32,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 11:58:32,788 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 (4)] Ended with exit code 0 [2023-12-22 11:58:32,984 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 [2023-12-22 11:58:32,985 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:32,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:32,986 INFO L85 PathProgramCache]: Analyzing trace with hash 164979658, now seen corresponding path program 1 times [2023-12-22 11:58:32,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:32,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269900488] [2023-12-22 11:58:32,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:32,987 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 [2023-12-22 11:58:32,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:32,991 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) [2023-12-22 11:58:32,994 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 [2023-12-22 11:58:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:33,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 11:58:33,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:33,171 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:58:33,171 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:58:33,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:33,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269900488] [2023-12-22 11:58:33,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269900488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:58:33,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:58:33,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:58:33,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104780691] [2023-12-22 11:58:33,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:33,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:58:33,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:33,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:58:33,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:33,176 INFO L87 Difference]: Start difference. First operand 715 states and 962 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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) [2023-12-22 11:58:35,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:58:35,759 INFO L93 Difference]: Finished difference Result 1965 states and 2657 transitions. [2023-12-22 11:58:35,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:58:35,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-22 11:58:35,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:58:35,763 INFO L225 Difference]: With dead ends: 1965 [2023-12-22 11:58:35,763 INFO L226 Difference]: Without dead ends: 1251 [2023-12-22 11:58:35,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:35,765 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 131 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:58:35,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 86 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 11:58:35,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2023-12-22 11:58:35,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1249. [2023-12-22 11:58:35,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 1.2475961538461537) internal successors, (1557), 1248 states have internal predecessors, (1557), 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) [2023-12-22 11:58:35,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1557 transitions. [2023-12-22 11:58:35,789 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1557 transitions. Word has length 120 [2023-12-22 11:58:35,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:58:35,790 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1557 transitions. [2023-12-22 11:58:35,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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) [2023-12-22 11:58:35,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1557 transitions. [2023-12-22 11:58:35,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-22 11:58:35,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:35,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 11:58:35,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 11:58:36,000 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 [2023-12-22 11:58:36,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:36,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1029143832, now seen corresponding path program 1 times [2023-12-22 11:58:36,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:36,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831708393] [2023-12-22 11:58:36,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:36,003 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 [2023-12-22 11:58:36,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:36,004 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) [2023-12-22 11:58:36,010 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 [2023-12-22 11:58:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:36,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 11:58:36,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:36,493 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 11:58:36,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:58:36,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831708393] [2023-12-22 11:58:36,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831708393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:58:36,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:58:36,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 11:58:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331022364] [2023-12-22 11:58:36,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:36,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 11:58:36,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:36,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 11:58:36,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 11:58:36,495 INFO L87 Difference]: Start difference. First operand 1249 states and 1557 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2023-12-22 11:58:38,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:58:38,623 INFO L93 Difference]: Finished difference Result 2170 states and 2743 transitions. [2023-12-22 11:58:38,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 11:58:38,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2023-12-22 11:58:38,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:58:38,626 INFO L225 Difference]: With dead ends: 2170 [2023-12-22 11:58:38,626 INFO L226 Difference]: Without dead ends: 1071 [2023-12-22 11:58:38,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 11:58:38,628 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 110 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 11:58:38,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 110 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 11:58:38,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-22 11:58:38,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-22 11:58:38,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.2401869158878505) internal successors, (1327), 1070 states have internal predecessors, (1327), 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) [2023-12-22 11:58:38,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1327 transitions. [2023-12-22 11:58:38,642 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1327 transitions. Word has length 132 [2023-12-22 11:58:38,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:58:38,642 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1327 transitions. [2023-12-22 11:58:38,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2023-12-22 11:58:38,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1327 transitions. [2023-12-22 11:58:38,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-22 11:58:38,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:38,644 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:58:38,656 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 [2023-12-22 11:58:38,848 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 [2023-12-22 11:58:38,848 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:38,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:38,849 INFO L85 PathProgramCache]: Analyzing trace with hash -596773922, now seen corresponding path program 1 times [2023-12-22 11:58:38,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:38,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253506273] [2023-12-22 11:58:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:38,850 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 [2023-12-22 11:58:38,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:38,851 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) [2023-12-22 11:58:38,851 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 [2023-12-22 11:58:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:38,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 11:58:38,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-22 11:58:39,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 11:58:39,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:39,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253506273] [2023-12-22 11:58:39,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253506273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 11:58:39,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 11:58:39,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 11:58:39,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877193015] [2023-12-22 11:58:39,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:39,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:58:39,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:39,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:58:39,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:39,529 INFO L87 Difference]: Start difference. First operand 1071 states and 1327 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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) [2023-12-22 11:58:41,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:58:41,499 INFO L93 Difference]: Finished difference Result 1785 states and 2288 transitions. [2023-12-22 11:58:41,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:58:41,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2023-12-22 11:58:41,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:58:41,502 INFO L225 Difference]: With dead ends: 1785 [2023-12-22 11:58:41,502 INFO L226 Difference]: Without dead ends: 1071 [2023-12-22 11:58:41,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 11:58:41,504 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 73 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 11:58:41,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 121 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 11:58:41,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-22 11:58:41,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-22 11:58:41,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.2345794392523364) internal successors, (1321), 1070 states have internal predecessors, (1321), 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) [2023-12-22 11:58:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1321 transitions. [2023-12-22 11:58:41,517 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1321 transitions. Word has length 227 [2023-12-22 11:58:41,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:58:41,517 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1321 transitions. [2023-12-22 11:58:41,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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) [2023-12-22 11:58:41,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1321 transitions. [2023-12-22 11:58:41,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-12-22 11:58:41,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:41,520 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:58:41,528 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 (7)] Forceful destruction successful, exit code 0 [2023-12-22 11:58:41,724 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 [2023-12-22 11:58:41,724 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:41,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:41,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1659190771, now seen corresponding path program 1 times [2023-12-22 11:58:41,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:41,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763103277] [2023-12-22 11:58:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:41,726 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 [2023-12-22 11:58:41,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:41,727 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) [2023-12-22 11:58:41,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 11:58:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:41,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 11:58:41,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 152 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 11:58:42,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 11:58:42,882 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 287 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 11:58:42,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:42,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763103277] [2023-12-22 11:58:42,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763103277] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 11:58:42,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 11:58:42,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 11:58:42,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603349380] [2023-12-22 11:58:42,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:42,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:58:42,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:42,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:58:42,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 11:58:42,884 INFO L87 Difference]: Start difference. First operand 1071 states and 1321 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2023-12-22 11:58:48,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:58:48,464 INFO L93 Difference]: Finished difference Result 2141 states and 2813 transitions. [2023-12-22 11:58:48,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:58:48,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 331 [2023-12-22 11:58:48,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:58:48,468 INFO L225 Difference]: With dead ends: 2141 [2023-12-22 11:58:48,468 INFO L226 Difference]: Without dead ends: 1427 [2023-12-22 11:58:48,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 11:58:48,470 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 134 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:58:48,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 55 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-22 11:58:48,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2023-12-22 11:58:48,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1427. [2023-12-22 11:58:48,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1426 states have (on average 1.2398316970546985) internal successors, (1768), 1426 states have internal predecessors, (1768), 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) [2023-12-22 11:58:48,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1768 transitions. [2023-12-22 11:58:48,489 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1768 transitions. Word has length 331 [2023-12-22 11:58:48,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:58:48,491 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 1768 transitions. [2023-12-22 11:58:48,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2023-12-22 11:58:48,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1768 transitions. [2023-12-22 11:58:48,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2023-12-22 11:58:48,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:48,494 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:58:48,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-22 11:58:48,697 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 [2023-12-22 11:58:48,698 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:48,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:48,698 INFO L85 PathProgramCache]: Analyzing trace with hash 521901227, now seen corresponding path program 1 times [2023-12-22 11:58:48,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:48,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903726331] [2023-12-22 11:58:48,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:48,699 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 [2023-12-22 11:58:48,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:48,701 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) [2023-12-22 11:58:48,720 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 [2023-12-22 11:58:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:48,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 11:58:48,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:49,161 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 152 proven. 159 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 11:58:49,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 11:58:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 11:58:49,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:58:49,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903726331] [2023-12-22 11:58:49,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903726331] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 11:58:49,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 11:58:49,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 11:58:49,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301755141] [2023-12-22 11:58:49,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 11:58:49,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 11:58:49,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:58:49,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 11:58:49,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 11:58:49,582 INFO L87 Difference]: Start difference. First operand 1427 states and 1768 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-12-22 11:58:54,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:58:54,176 INFO L93 Difference]: Finished difference Result 3209 states and 4155 transitions. [2023-12-22 11:58:54,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 11:58:54,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 343 [2023-12-22 11:58:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:58:54,189 INFO L225 Difference]: With dead ends: 3209 [2023-12-22 11:58:54,190 INFO L226 Difference]: Without dead ends: 2139 [2023-12-22 11:58:54,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 11:58:54,193 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-22 11:58:54,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 247 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-22 11:58:54,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-12-22 11:58:54,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2023-12-22 11:58:54,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.2469597754911133) internal successors, (2666), 2138 states have internal predecessors, (2666), 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) [2023-12-22 11:58:54,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2666 transitions. [2023-12-22 11:58:54,217 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2666 transitions. Word has length 343 [2023-12-22 11:58:54,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:58:54,217 INFO L495 AbstractCegarLoop]: Abstraction has 2139 states and 2666 transitions. [2023-12-22 11:58:54,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-12-22 11:58:54,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2666 transitions. [2023-12-22 11:58:54,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2023-12-22 11:58:54,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:58:54,221 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:58:54,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-22 11:58:54,425 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 [2023-12-22 11:58:54,425 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:58:54,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:58:54,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1716854061, now seen corresponding path program 1 times [2023-12-22 11:58:54,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:58:54,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877885755] [2023-12-22 11:58:54,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:58:54,427 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 [2023-12-22 11:58:54,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:58:54,428 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) [2023-12-22 11:58:54,453 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 [2023-12-22 11:58:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:58:54,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 11:58:54,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:58:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 343 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 11:58:55,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 11:59:01,612 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 248 proven. 95 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 11:59:01,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 11:59:01,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877885755] [2023-12-22 11:59:01,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877885755] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 11:59:01,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 11:59:01,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-22 11:59:01,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841690027] [2023-12-22 11:59:01,613 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 11:59:01,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 11:59:01,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 11:59:01,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 11:59:01,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-22 11:59:01,615 INFO L87 Difference]: Start difference. First operand 2139 states and 2666 transitions. Second operand has 9 states, 9 states have (on average 54.333333333333336) internal successors, (489), 8 states have internal predecessors, (489), 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) [2023-12-22 11:59:38,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:59:53,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 11:59:58,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 11:59:58,001 INFO L93 Difference]: Finished difference Result 7421 states and 9724 transitions. [2023-12-22 11:59:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 11:59:58,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 54.333333333333336) internal successors, (489), 8 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2023-12-22 11:59:58,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 11:59:58,013 INFO L225 Difference]: With dead ends: 7421 [2023-12-22 11:59:58,014 INFO L226 Difference]: Without dead ends: 5639 [2023-12-22 11:59:58,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2023-12-22 11:59:58,015 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2864 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 3347 mSolverCounterSat, 896 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2864 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 4243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 896 IncrementalHoareTripleChecker+Valid, 3347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.5s IncrementalHoareTripleChecker+Time [2023-12-22 11:59:58,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2864 Valid, 67 Invalid, 4243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [896 Valid, 3347 Invalid, 0 Unknown, 0 Unchecked, 55.5s Time] [2023-12-22 11:59:58,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5639 states. [2023-12-22 11:59:58,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5639 to 4453. [2023-12-22 11:59:58,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4453 states, 4452 states have (on average 1.280323450134771) internal successors, (5700), 4452 states have internal predecessors, (5700), 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) [2023-12-22 11:59:58,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4453 states to 4453 states and 5700 transitions. [2023-12-22 11:59:58,066 INFO L78 Accepts]: Start accepts. Automaton has 4453 states and 5700 transitions. Word has length 359 [2023-12-22 11:59:58,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 11:59:58,066 INFO L495 AbstractCegarLoop]: Abstraction has 4453 states and 5700 transitions. [2023-12-22 11:59:58,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 54.333333333333336) internal successors, (489), 8 states have internal predecessors, (489), 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) [2023-12-22 11:59:58,067 INFO L276 IsEmpty]: Start isEmpty. Operand 4453 states and 5700 transitions. [2023-12-22 11:59:58,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2023-12-22 11:59:58,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 11:59:58,071 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 11:59:58,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-22 11:59:58,274 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 [2023-12-22 11:59:58,275 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 11:59:58,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 11:59:58,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1916986860, now seen corresponding path program 1 times [2023-12-22 11:59:58,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 11:59:58,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219540124] [2023-12-22 11:59:58,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 11:59:58,277 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 [2023-12-22 11:59:58,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 11:59:58,278 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) [2023-12-22 11:59:58,281 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 [2023-12-22 11:59:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 11:59:58,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 11:59:58,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 11:59:59,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1685 backedges. 1075 proven. 277 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-12-22 11:59:59,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:00:05,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1685 backedges. 1323 proven. 29 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-12-22 12:00:05,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:00:05,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219540124] [2023-12-22 12:00:05,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219540124] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:00:05,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:00:05,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-22 12:00:05,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895079556] [2023-12-22 12:00:05,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:00:05,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 12:00:05,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:00:05,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 12:00:05,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-22 12:00:05,367 INFO L87 Difference]: Start difference. First operand 4453 states and 5700 transitions. Second operand has 9 states, 9 states have (on average 89.33333333333333) internal successors, (804), 9 states have internal predecessors, (804), 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) [2023-12-22 12:00:39,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:00:44,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:00:45,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:00:45,130 INFO L93 Difference]: Finished difference Result 9706 states and 12653 transitions. [2023-12-22 12:00:45,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 12:00:45,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 89.33333333333333) internal successors, (804), 9 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 686 [2023-12-22 12:00:45,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:00:45,149 INFO L225 Difference]: With dead ends: 9706 [2023-12-22 12:00:45,149 INFO L226 Difference]: Without dead ends: 5879 [2023-12-22 12:00:45,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1372 GetRequests, 1364 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-22 12:00:45,155 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 525 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.4s IncrementalHoareTripleChecker+Time [2023-12-22 12:00:45,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 48 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 2044 Invalid, 0 Unknown, 0 Unchecked, 39.4s Time] [2023-12-22 12:00:45,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5879 states. [2023-12-22 12:00:45,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5879 to 5699. [2023-12-22 12:00:45,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 5698 states have (on average 1.1223236223236224) internal successors, (6395), 5698 states have internal predecessors, (6395), 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) [2023-12-22 12:00:45,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 6395 transitions. [2023-12-22 12:00:45,254 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 6395 transitions. Word has length 686 [2023-12-22 12:00:45,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:00:45,255 INFO L495 AbstractCegarLoop]: Abstraction has 5699 states and 6395 transitions. [2023-12-22 12:00:45,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 89.33333333333333) internal successors, (804), 9 states have internal predecessors, (804), 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) [2023-12-22 12:00:45,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 6395 transitions. [2023-12-22 12:00:45,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2023-12-22 12:00:45,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:00:45,261 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2023-12-22 12:00:45,275 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 [2023-12-22 12:00:45,468 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 [2023-12-22 12:00:45,469 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:00:45,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:00:45,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1586555307, now seen corresponding path program 1 times [2023-12-22 12:00:45,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:00:45,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106385252] [2023-12-22 12:00:45,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:00:45,471 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 [2023-12-22 12:00:45,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:00:45,477 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) [2023-12-22 12:00:45,478 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 [2023-12-22 12:00:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:00:45,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 12:00:45,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:00:47,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1738 backedges. 702 proven. 872 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-12-22 12:00:47,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:00:53,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1738 backedges. 1228 proven. 242 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-22 12:00:53,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:00:53,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106385252] [2023-12-22 12:00:53,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106385252] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:00:53,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:00:53,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2023-12-22 12:00:53,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149461444] [2023-12-22 12:00:53,184 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:00:53,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 12:00:53,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:00:53,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 12:00:53,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-22 12:00:53,186 INFO L87 Difference]: Start difference. First operand 5699 states and 6395 transitions. Second operand has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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) [2023-12-22 12:01:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:01:00,832 INFO L93 Difference]: Finished difference Result 10507 states and 11932 transitions. [2023-12-22 12:01:00,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 12:01:00,837 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 729 [2023-12-22 12:01:00,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:01:00,847 INFO L225 Difference]: With dead ends: 10507 [2023-12-22 12:01:00,848 INFO L226 Difference]: Without dead ends: 5343 [2023-12-22 12:01:00,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1458 GetRequests, 1451 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-22 12:01:00,852 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 358 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 2311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-22 12:01:00,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 84 Invalid, 2311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-22 12:01:00,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5343 states. [2023-12-22 12:01:00,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5343 to 3919. [2023-12-22 12:01:00,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 3918 states have (on average 1.1061766207248596) internal successors, (4334), 3918 states have internal predecessors, (4334), 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) [2023-12-22 12:01:00,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 4334 transitions. [2023-12-22 12:01:00,910 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 4334 transitions. Word has length 729 [2023-12-22 12:01:00,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:01:00,911 INFO L495 AbstractCegarLoop]: Abstraction has 3919 states and 4334 transitions. [2023-12-22 12:01:00,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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) [2023-12-22 12:01:00,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 4334 transitions. [2023-12-22 12:01:00,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2023-12-22 12:01:00,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:01:00,916 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2023-12-22 12:01:00,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 12:01:01,122 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 [2023-12-22 12:01:01,123 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:01:01,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:01:01,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1997942922, now seen corresponding path program 1 times [2023-12-22 12:01:01,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:01:01,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212523874] [2023-12-22 12:01:01,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:01:01,126 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 [2023-12-22 12:01:01,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:01:01,127 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) [2023-12-22 12:01:01,130 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 [2023-12-22 12:01:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:01:01,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:01:01,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:01:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2217 backedges. 1409 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2023-12-22 12:01:01,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:01:01,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:01:01,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212523874] [2023-12-22 12:01:01,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212523874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:01:01,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:01:01,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:01:01,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211775425] [2023-12-22 12:01:01,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:01:01,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:01:01,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:01:01,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:01:01,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:01:01,464 INFO L87 Difference]: Start difference. First operand 3919 states and 4334 transitions. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-12-22 12:01:03,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:01:03,757 INFO L93 Difference]: Finished difference Result 7837 states and 8779 transitions. [2023-12-22 12:01:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:01:03,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 801 [2023-12-22 12:01:03,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:01:03,771 INFO L225 Difference]: With dead ends: 7837 [2023-12-22 12:01:03,771 INFO L226 Difference]: Without dead ends: 4809 [2023-12-22 12:01:03,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 799 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:01:03,774 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 107 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 12:01:03,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 229 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 12:01:03,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4809 states. [2023-12-22 12:01:03,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4809 to 4809. [2023-12-22 12:01:03,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4809 states, 4808 states have (on average 1.0794509151414309) internal successors, (5190), 4808 states have internal predecessors, (5190), 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) [2023-12-22 12:01:03,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4809 states to 4809 states and 5190 transitions. [2023-12-22 12:01:03,817 INFO L78 Accepts]: Start accepts. Automaton has 4809 states and 5190 transitions. Word has length 801 [2023-12-22 12:01:03,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:01:03,818 INFO L495 AbstractCegarLoop]: Abstraction has 4809 states and 5190 transitions. [2023-12-22 12:01:03,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-12-22 12:01:03,818 INFO L276 IsEmpty]: Start isEmpty. Operand 4809 states and 5190 transitions. [2023-12-22 12:01:03,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 899 [2023-12-22 12:01:03,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:01:03,825 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:01:03,838 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 [2023-12-22 12:01:04,032 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 [2023-12-22 12:01:04,032 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:01:04,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:01:04,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1805384726, now seen corresponding path program 1 times [2023-12-22 12:01:04,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:01:04,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52614214] [2023-12-22 12:01:04,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:01:04,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:01:04,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:01:04,036 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) [2023-12-22 12:01:04,038 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 [2023-12-22 12:01:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:01:04,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 12:01:04,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:01:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 1945 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2023-12-22 12:01:05,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:01:05,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:01:05,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52614214] [2023-12-22 12:01:05,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52614214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:01:05,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:01:05,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 12:01:05,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685566906] [2023-12-22 12:01:05,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:01:05,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 12:01:05,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:01:05,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 12:01:05,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:01:05,087 INFO L87 Difference]: Start difference. First operand 4809 states and 5190 transitions. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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) [2023-12-22 12:01:07,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:01:07,257 INFO L93 Difference]: Finished difference Result 8905 states and 9667 transitions. [2023-12-22 12:01:07,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:01:07,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 898 [2023-12-22 12:01:07,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:01:07,280 INFO L225 Difference]: With dead ends: 8905 [2023-12-22 12:01:07,280 INFO L226 Difference]: Without dead ends: 4987 [2023-12-22 12:01:07,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 12:01:07,284 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 66 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 12:01:07,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 53 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 12:01:07,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2023-12-22 12:01:07,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4987. [2023-12-22 12:01:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4986 states have (on average 1.0772162053750503) internal successors, (5371), 4986 states have internal predecessors, (5371), 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) [2023-12-22 12:01:07,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 5371 transitions. [2023-12-22 12:01:07,328 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 5371 transitions. Word has length 898 [2023-12-22 12:01:07,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:01:07,329 INFO L495 AbstractCegarLoop]: Abstraction has 4987 states and 5371 transitions. [2023-12-22 12:01:07,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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) [2023-12-22 12:01:07,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 5371 transitions. [2023-12-22 12:01:07,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 906 [2023-12-22 12:01:07,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:01:07,336 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:01:07,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 12:01:07,543 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 [2023-12-22 12:01:07,543 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:01:07,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:01:07,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1100146798, now seen corresponding path program 1 times [2023-12-22 12:01:07,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:01:07,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914128545] [2023-12-22 12:01:07,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:01:07,546 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 [2023-12-22 12:01:07,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:01:07,547 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) [2023-12-22 12:01:07,554 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 [2023-12-22 12:01:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:01:07,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 12:01:07,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:01:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2468 backedges. 1524 proven. 420 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-12-22 12:01:12,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:01:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2468 backedges. 1944 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-12-22 12:01:29,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:01:29,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914128545] [2023-12-22 12:01:29,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914128545] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:01:29,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:01:29,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 19 [2023-12-22 12:01:29,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710207946] [2023-12-22 12:01:29,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:01:29,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-22 12:01:29,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:01:29,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-22 12:01:29,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2023-12-22 12:01:29,188 INFO L87 Difference]: Start difference. First operand 4987 states and 5371 transitions. Second operand has 11 states, 11 states have (on average 50.54545454545455) internal successors, (556), 10 states have internal predecessors, (556), 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) [2023-12-22 12:01:35,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:01:35,458 INFO L93 Difference]: Finished difference Result 9945 states and 10736 transitions. [2023-12-22 12:01:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-22 12:01:35,459 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 50.54545454545455) internal successors, (556), 10 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 905 [2023-12-22 12:01:35,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:01:35,466 INFO L225 Difference]: With dead ends: 9945 [2023-12-22 12:01:35,466 INFO L226 Difference]: Without dead ends: 5475 [2023-12-22 12:01:35,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1808 GetRequests, 1790 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2023-12-22 12:01:35,470 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 189 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-22 12:01:35,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 24 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-22 12:01:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2023-12-22 12:01:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 5297. [2023-12-22 12:01:35,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5296 states have (on average 1.071941087613293) internal successors, (5677), 5296 states have internal predecessors, (5677), 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) [2023-12-22 12:01:35,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 5677 transitions. [2023-12-22 12:01:35,518 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 5677 transitions. Word has length 905 [2023-12-22 12:01:35,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:01:35,519 INFO L495 AbstractCegarLoop]: Abstraction has 5297 states and 5677 transitions. [2023-12-22 12:01:35,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 50.54545454545455) internal successors, (556), 10 states have internal predecessors, (556), 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) [2023-12-22 12:01:35,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 5677 transitions. [2023-12-22 12:01:35,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2023-12-22 12:01:35,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:01:35,526 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 12:01:35,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-22 12:01:35,733 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 [2023-12-22 12:01:35,734 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:01:35,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:01:35,735 INFO L85 PathProgramCache]: Analyzing trace with hash 283867181, now seen corresponding path program 1 times [2023-12-22 12:01:35,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:01:35,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355114034] [2023-12-22 12:01:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:01:35,739 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 [2023-12-22 12:01:35,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:01:35,740 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) [2023-12-22 12:01:35,741 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 [2023-12-22 12:01:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:01:36,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-22 12:01:36,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:01:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3049 backedges. 1582 proven. 1115 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2023-12-22 12:01:41,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:02:47,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3049 backedges. 2697 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2023-12-22 12:02:47,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:02:47,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355114034] [2023-12-22 12:02:47,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355114034] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:02:47,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:02:47,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 21 [2023-12-22 12:02:47,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564071017] [2023-12-22 12:02:47,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:02:47,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:02:47,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:02:47,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:02:47,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2023-12-22 12:02:47,547 INFO L87 Difference]: Start difference. First operand 5297 states and 5677 transitions. Second operand has 12 states, 12 states have (on average 57.083333333333336) internal successors, (685), 11 states have internal predecessors, (685), 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) [2023-12-22 12:02:57,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:03,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:09,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:12,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:18,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:22,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:26,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:28,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:30,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:34,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:39,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:43,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:46,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:48,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:50,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:03:51,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:03:51,533 INFO L93 Difference]: Finished difference Result 10760 states and 11659 transitions. [2023-12-22 12:03:51,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:03:51,543 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 57.083333333333336) internal successors, (685), 11 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 982 [2023-12-22 12:03:51,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:03:51,555 INFO L225 Difference]: With dead ends: 10760 [2023-12-22 12:03:51,555 INFO L226 Difference]: Without dead ends: 6439 [2023-12-22 12:03:51,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1962 GetRequests, 1942 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2023-12-22 12:03:51,560 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 295 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 90 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:03:51,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 24 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1703 Invalid, 2 Unknown, 0 Unchecked, 63.8s Time] [2023-12-22 12:03:51,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6439 states. [2023-12-22 12:03:51,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6439 to 5191. [2023-12-22 12:03:51,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 1.0720616570327552) internal successors, (5564), 5190 states have internal predecessors, (5564), 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) [2023-12-22 12:03:51,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 5564 transitions. [2023-12-22 12:03:51,618 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 5564 transitions. Word has length 982 [2023-12-22 12:03:51,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:03:51,619 INFO L495 AbstractCegarLoop]: Abstraction has 5191 states and 5564 transitions. [2023-12-22 12:03:51,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.083333333333336) internal successors, (685), 11 states have internal predecessors, (685), 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) [2023-12-22 12:03:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 5564 transitions. [2023-12-22 12:03:51,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2023-12-22 12:03:51,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:03:51,629 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:03:51,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 12:03:51,837 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 [2023-12-22 12:03:51,837 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:03:51,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:03:51,838 INFO L85 PathProgramCache]: Analyzing trace with hash 361551520, now seen corresponding path program 1 times [2023-12-22 12:03:51,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:03:51,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046877105] [2023-12-22 12:03:51,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:03:51,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:03:51,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:03:51,843 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) [2023-12-22 12:03:51,845 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 [2023-12-22 12:03:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:03:52,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:03:52,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:03:55,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3350 backedges. 0 proven. 3133 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-22 12:03:55,845 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:04:08,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3350 backedges. 713 proven. 176 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2023-12-22 12:04:08,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:04:08,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046877105] [2023-12-22 12:04:08,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046877105] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:04:08,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:04:08,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2023-12-22 12:04:08,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181631147] [2023-12-22 12:04:08,390 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:04:08,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-22 12:04:08,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:04:08,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-22 12:04:08,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:04:08,392 INFO L87 Difference]: Start difference. First operand 5191 states and 5564 transitions. Second operand has 13 states, 13 states have (on average 85.76923076923077) internal successors, (1115), 12 states have internal predecessors, (1115), 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) [2023-12-22 12:04:16,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:04:51,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:04:55,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:04:57,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:05:02,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:05:05,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:05:06,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:05:06,690 INFO L93 Difference]: Finished difference Result 11381 states and 12367 transitions. [2023-12-22 12:05:06,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 12:05:06,691 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 85.76923076923077) internal successors, (1115), 12 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1056 [2023-12-22 12:05:06,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:05:06,699 INFO L225 Difference]: With dead ends: 11381 [2023-12-22 12:05:06,699 INFO L226 Difference]: Without dead ends: 6615 [2023-12-22 12:05:06,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2119 GetRequests, 2099 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2023-12-22 12:05:06,703 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 1676 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 10042 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 10318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 10042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.1s IncrementalHoareTripleChecker+Time [2023-12-22 12:05:06,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 195 Invalid, 10318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 10042 Invalid, 0 Unknown, 0 Unchecked, 57.1s Time] [2023-12-22 12:05:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6615 states. [2023-12-22 12:05:06,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6615 to 5725. [2023-12-22 12:05:06,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5725 states, 5724 states have (on average 1.0655136268343814) internal successors, (6099), 5724 states have internal predecessors, (6099), 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) [2023-12-22 12:05:06,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5725 states to 5725 states and 6099 transitions. [2023-12-22 12:05:06,760 INFO L78 Accepts]: Start accepts. Automaton has 5725 states and 6099 transitions. Word has length 1056 [2023-12-22 12:05:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:05:06,761 INFO L495 AbstractCegarLoop]: Abstraction has 5725 states and 6099 transitions. [2023-12-22 12:05:06,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 85.76923076923077) internal successors, (1115), 12 states have internal predecessors, (1115), 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) [2023-12-22 12:05:06,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5725 states and 6099 transitions. [2023-12-22 12:05:06,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2023-12-22 12:05:06,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:05:06,772 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:05:06,780 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 [2023-12-22 12:05:06,980 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 [2023-12-22 12:05:06,981 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:05:06,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:05:06,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1465794619, now seen corresponding path program 1 times [2023-12-22 12:05:06,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:05:06,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679481623] [2023-12-22 12:05:06,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:05:06,985 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 [2023-12-22 12:05:06,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:05:06,987 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) [2023-12-22 12:05:06,988 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 [2023-12-22 12:05:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:05:07,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 12:05:07,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:05:08,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3796 backedges. 1276 proven. 2098 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2023-12-22 12:05:08,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:05:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3796 backedges. 2726 proven. 75 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2023-12-22 12:05:12,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:05:12,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679481623] [2023-12-22 12:05:12,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679481623] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:05:12,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:05:12,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-12-22 12:05:12,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980501056] [2023-12-22 12:05:12,053 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:05:12,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 12:05:12,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:05:12,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 12:05:12,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-22 12:05:12,055 INFO L87 Difference]: Start difference. First operand 5725 states and 6099 transitions. Second operand has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2023-12-22 12:05:31,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:05:31,336 INFO L93 Difference]: Finished difference Result 11877 states and 12750 transitions. [2023-12-22 12:05:31,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 12:05:31,341 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1109 [2023-12-22 12:05:31,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:05:31,350 INFO L225 Difference]: With dead ends: 11877 [2023-12-22 12:05:31,350 INFO L226 Difference]: Without dead ends: 7732 [2023-12-22 12:05:31,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2218 GetRequests, 2209 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 12:05:31,353 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 377 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 4637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2023-12-22 12:05:31,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 84 Invalid, 4637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 19.1s Time] [2023-12-22 12:05:31,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7732 states. [2023-12-22 12:05:31,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7732 to 7654. [2023-12-22 12:05:31,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7654 states, 7653 states have (on average 1.053312426499412) internal successors, (8061), 7653 states have internal predecessors, (8061), 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) [2023-12-22 12:05:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7654 states to 7654 states and 8061 transitions. [2023-12-22 12:05:31,428 INFO L78 Accepts]: Start accepts. Automaton has 7654 states and 8061 transitions. Word has length 1109 [2023-12-22 12:05:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:05:31,428 INFO L495 AbstractCegarLoop]: Abstraction has 7654 states and 8061 transitions. [2023-12-22 12:05:31,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 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) [2023-12-22 12:05:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 7654 states and 8061 transitions. [2023-12-22 12:05:31,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2023-12-22 12:05:31,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:05:31,439 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 12:05:31,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 12:05:31,647 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 [2023-12-22 12:05:31,648 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:05:31,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:05:31,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1003033409, now seen corresponding path program 1 times [2023-12-22 12:05:31,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:05:31,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546536389] [2023-12-22 12:05:31,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:05:31,652 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 [2023-12-22 12:05:31,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:05:31,653 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) [2023-12-22 12:05:31,655 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 [2023-12-22 12:05:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:05:31,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-22 12:05:31,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:05:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4014 backedges. 622 proven. 3021 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-12-22 12:05:38,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:06:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4014 backedges. 2706 proven. 364 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2023-12-22 12:06:10,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:06:10,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546536389] [2023-12-22 12:06:10,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546536389] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:06:10,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:06:10,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2023-12-22 12:06:10,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402137274] [2023-12-22 12:06:10,364 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:06:10,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-22 12:06:10,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:06:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-22 12:06:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600 [2023-12-22 12:06:10,367 INFO L87 Difference]: Start difference. First operand 7654 states and 8061 transitions. Second operand has 25 states, 25 states have (on average 61.28) internal successors, (1532), 24 states have internal predecessors, (1532), 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) [2023-12-22 12:06:35,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:06:35,133 INFO L93 Difference]: Finished difference Result 13349 states and 14147 transitions. [2023-12-22 12:06:35,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-22 12:06:35,138 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 61.28) internal successors, (1532), 24 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1148 [2023-12-22 12:06:35,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:06:35,149 INFO L225 Difference]: With dead ends: 13349 [2023-12-22 12:06:35,149 INFO L226 Difference]: Without dead ends: 7275 [2023-12-22 12:06:35,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2302 GetRequests, 2271 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=327, Invalid=729, Unknown=0, NotChecked=0, Total=1056 [2023-12-22 12:06:35,154 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 508 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 8780 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 8953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 8780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2023-12-22 12:06:35,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 144 Invalid, 8953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 8780 Invalid, 0 Unknown, 0 Unchecked, 24.0s Time] [2023-12-22 12:06:35,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7275 states. [2023-12-22 12:06:35,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7275 to 6289. [2023-12-22 12:06:35,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6289 states, 6288 states have (on average 1.0512086513994912) internal successors, (6610), 6288 states have internal predecessors, (6610), 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) [2023-12-22 12:06:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6289 states to 6289 states and 6610 transitions. [2023-12-22 12:06:35,232 INFO L78 Accepts]: Start accepts. Automaton has 6289 states and 6610 transitions. Word has length 1148 [2023-12-22 12:06:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:06:35,233 INFO L495 AbstractCegarLoop]: Abstraction has 6289 states and 6610 transitions. [2023-12-22 12:06:35,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 61.28) internal successors, (1532), 24 states have internal predecessors, (1532), 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) [2023-12-22 12:06:35,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6289 states and 6610 transitions. [2023-12-22 12:06:35,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2023-12-22 12:06:35,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:06:35,245 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:06:35,271 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 [2023-12-22 12:06:35,472 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 [2023-12-22 12:06:35,473 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:06:35,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:06:35,473 INFO L85 PathProgramCache]: Analyzing trace with hash -20187633, now seen corresponding path program 1 times [2023-12-22 12:06:35,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:06:35,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993793344] [2023-12-22 12:06:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:06:35,477 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 [2023-12-22 12:06:35,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:06:35,478 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) [2023-12-22 12:06:35,480 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 [2023-12-22 12:06:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:06:35,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-22 12:06:35,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:06:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4405 backedges. 198 proven. 3990 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-22 12:06:40,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:06:47,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4405 backedges. 1105 proven. 0 refuted. 0 times theorem prover too weak. 3300 trivial. 0 not checked. [2023-12-22 12:06:47,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:06:47,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993793344] [2023-12-22 12:06:47,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993793344] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:06:47,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:06:47,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-22 12:06:47,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875709298] [2023-12-22 12:06:47,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:06:47,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:06:47,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:06:47,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:06:47,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:06:47,119 INFO L87 Difference]: Start difference. First operand 6289 states and 6610 transitions. Second operand has 5 states, 5 states have (on average 62.0) internal successors, (310), 4 states have internal predecessors, (310), 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) [2023-12-22 12:07:03,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:07:03,569 INFO L93 Difference]: Finished difference Result 10955 states and 11600 transitions. [2023-12-22 12:07:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 12:07:03,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.0) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1197 [2023-12-22 12:07:03,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:07:03,578 INFO L225 Difference]: With dead ends: 10955 [2023-12-22 12:07:03,578 INFO L226 Difference]: Without dead ends: 6467 [2023-12-22 12:07:03,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2392 GetRequests, 2381 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:07:03,582 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 117 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-12-22 12:07:03,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 17 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2023-12-22 12:07:03,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6467 states. [2023-12-22 12:07:03,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6467 to 6289. [2023-12-22 12:07:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6289 states, 6288 states have (on average 1.0508905852417303) internal successors, (6608), 6288 states have internal predecessors, (6608), 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) [2023-12-22 12:07:03,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6289 states to 6289 states and 6608 transitions. [2023-12-22 12:07:03,673 INFO L78 Accepts]: Start accepts. Automaton has 6289 states and 6608 transitions. Word has length 1197 [2023-12-22 12:07:03,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:07:03,674 INFO L495 AbstractCegarLoop]: Abstraction has 6289 states and 6608 transitions. [2023-12-22 12:07:03,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.0) internal successors, (310), 4 states have internal predecessors, (310), 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) [2023-12-22 12:07:03,674 INFO L276 IsEmpty]: Start isEmpty. Operand 6289 states and 6608 transitions. [2023-12-22 12:07:03,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1227 [2023-12-22 12:07:03,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:07:03,687 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:07:03,711 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 [2023-12-22 12:07:03,897 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 [2023-12-22 12:07:03,898 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:07:03,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:07:03,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1524492852, now seen corresponding path program 1 times [2023-12-22 12:07:03,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:07:03,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395262879] [2023-12-22 12:07:03,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:07:03,903 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 [2023-12-22 12:07:03,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:07:03,904 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) [2023-12-22 12:07:03,905 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 [2023-12-22 12:07:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:07:04,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 12:07:04,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:07:04,421 INFO L134 CoverageAnalysis]: Checked inductivity of 4628 backedges. 1328 proven. 0 refuted. 0 times theorem prover too weak. 3300 trivial. 0 not checked. [2023-12-22 12:07:04,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 12:07:04,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:07:04,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395262879] [2023-12-22 12:07:04,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395262879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 12:07:04,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 12:07:04,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 12:07:04,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678785145] [2023-12-22 12:07:04,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:07:04,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 12:07:04,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:07:04,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 12:07:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:07:04,424 INFO L87 Difference]: Start difference. First operand 6289 states and 6608 transitions. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2023-12-22 12:07:06,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:07:06,859 INFO L93 Difference]: Finished difference Result 12933 states and 13657 transitions. [2023-12-22 12:07:06,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 12:07:06,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1226 [2023-12-22 12:07:06,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:07:06,867 INFO L225 Difference]: With dead ends: 12933 [2023-12-22 12:07:06,868 INFO L226 Difference]: Without dead ends: 6823 [2023-12-22 12:07:06,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1225 GetRequests, 1224 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 12:07:06,872 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 69 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 12:07:06,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 225 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 12:07:06,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6823 states. [2023-12-22 12:07:06,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6823 to 6467. [2023-12-22 12:07:06,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6466 states have (on average 1.0471698113207548) internal successors, (6771), 6466 states have internal predecessors, (6771), 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) [2023-12-22 12:07:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 6771 transitions. [2023-12-22 12:07:06,938 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 6771 transitions. Word has length 1226 [2023-12-22 12:07:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:07:06,938 INFO L495 AbstractCegarLoop]: Abstraction has 6467 states and 6771 transitions. [2023-12-22 12:07:06,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2023-12-22 12:07:06,938 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 6771 transitions. [2023-12-22 12:07:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1562 [2023-12-22 12:07:06,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:07:06,954 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:07:06,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-22 12:07:07,162 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 [2023-12-22 12:07:07,163 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:07:07,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:07:07,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2069261486, now seen corresponding path program 1 times [2023-12-22 12:07:07,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:07:07,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031792825] [2023-12-22 12:07:07,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:07:07,168 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 [2023-12-22 12:07:07,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:07:07,169 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) [2023-12-22 12:07:07,170 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 [2023-12-22 12:07:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:07:07,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 1695 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:07:07,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:07:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 7431 backedges. 1625 proven. 5195 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2023-12-22 12:07:12,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:07:15,821 INFO L134 CoverageAnalysis]: Checked inductivity of 7431 backedges. 3751 proven. 48 refuted. 0 times theorem prover too weak. 3632 trivial. 0 not checked. [2023-12-22 12:07:15,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:07:15,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031792825] [2023-12-22 12:07:15,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031792825] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:07:15,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:07:15,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 11 [2023-12-22 12:07:15,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035530626] [2023-12-22 12:07:15,822 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:07:15,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:07:15,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:07:15,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:07:15,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:07:15,824 INFO L87 Difference]: Start difference. First operand 6467 states and 6771 transitions. Second operand has 12 states, 12 states have (on average 118.33333333333333) internal successors, (1420), 11 states have internal predecessors, (1420), 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) [2023-12-22 12:07:31,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:07:31,786 INFO L93 Difference]: Finished difference Result 13225 states and 13947 transitions. [2023-12-22 12:07:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:07:31,811 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 118.33333333333333) internal successors, (1420), 11 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1561 [2023-12-22 12:07:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:07:31,818 INFO L225 Difference]: With dead ends: 13225 [2023-12-22 12:07:31,818 INFO L226 Difference]: Without dead ends: 8540 [2023-12-22 12:07:31,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3121 GetRequests, 3110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:07:31,821 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 233 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 8018 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 8128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 8018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:07:31,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 175 Invalid, 8128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 8018 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2023-12-22 12:07:31,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8540 states. [2023-12-22 12:07:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8540 to 6467. [2023-12-22 12:07:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6466 states have (on average 1.045932570368079) internal successors, (6763), 6466 states have internal predecessors, (6763), 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) [2023-12-22 12:07:31,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 6763 transitions. [2023-12-22 12:07:31,882 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 6763 transitions. Word has length 1561 [2023-12-22 12:07:31,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:07:31,883 INFO L495 AbstractCegarLoop]: Abstraction has 6467 states and 6763 transitions. [2023-12-22 12:07:31,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 118.33333333333333) internal successors, (1420), 11 states have internal predecessors, (1420), 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) [2023-12-22 12:07:31,884 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 6763 transitions. [2023-12-22 12:07:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1570 [2023-12-22 12:07:31,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:07:31,899 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:07:31,907 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 (22)] Ended with exit code 0 [2023-12-22 12:07:32,107 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 [2023-12-22 12:07:32,107 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:07:32,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:07:32,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1934752922, now seen corresponding path program 1 times [2023-12-22 12:07:32,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:07:32,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014108380] [2023-12-22 12:07:32,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:07:32,113 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 [2023-12-22 12:07:32,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:07:32,114 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) [2023-12-22 12:07:32,115 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 [2023-12-22 12:07:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:07:32,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:07:32,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:07:37,736 INFO L134 CoverageAnalysis]: Checked inductivity of 7500 backedges. 1593 proven. 5292 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2023-12-22 12:07:37,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:07:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7500 backedges. 3864 proven. 0 refuted. 0 times theorem prover too weak. 3636 trivial. 0 not checked. [2023-12-22 12:07:56,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:07:56,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014108380] [2023-12-22 12:07:56,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014108380] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 12:07:56,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 12:07:56,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-22 12:07:56,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818183659] [2023-12-22 12:07:56,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 12:07:56,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 12:07:56,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:07:56,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 12:07:56,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:07:56,936 INFO L87 Difference]: Start difference. First operand 6467 states and 6763 transitions. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 4 states have internal predecessors, (554), 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) [2023-12-22 12:08:01,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:08:11,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:08:17,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:08:19,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:08:19,800 INFO L93 Difference]: Finished difference Result 11490 states and 12091 transitions. [2023-12-22 12:08:19,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 12:08:19,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 4 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1569 [2023-12-22 12:08:19,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:08:19,805 INFO L225 Difference]: With dead ends: 11490 [2023-12-22 12:08:19,805 INFO L226 Difference]: Without dead ends: 6825 [2023-12-22 12:08:19,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3136 GetRequests, 3126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:08:19,808 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 84 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:08:19,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 18 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 22.8s Time] [2023-12-22 12:08:19,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6825 states. [2023-12-22 12:08:19,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6825 to 6467. [2023-12-22 12:08:19,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6466 states have (on average 1.0446953294154036) internal successors, (6755), 6466 states have internal predecessors, (6755), 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) [2023-12-22 12:08:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 6755 transitions. [2023-12-22 12:08:19,859 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 6755 transitions. Word has length 1569 [2023-12-22 12:08:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:08:19,860 INFO L495 AbstractCegarLoop]: Abstraction has 6467 states and 6755 transitions. [2023-12-22 12:08:19,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 4 states have internal predecessors, (554), 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) [2023-12-22 12:08:19,860 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 6755 transitions. [2023-12-22 12:08:19,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1637 [2023-12-22 12:08:19,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:08:19,875 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:08:19,886 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 [2023-12-22 12:08:20,084 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 [2023-12-22 12:08:20,085 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:08:20,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:08:20,085 INFO L85 PathProgramCache]: Analyzing trace with hash -572495908, now seen corresponding path program 1 times [2023-12-22 12:08:20,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:08:20,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512734748] [2023-12-22 12:08:20,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:08:20,090 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 [2023-12-22 12:08:20,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:08:20,091 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) [2023-12-22 12:08:20,092 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 [2023-12-22 12:08:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:08:20,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:08:20,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:08:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 7796 backedges. 1677 proven. 5434 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2023-12-22 12:08:25,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:09:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 7796 backedges. 4040 proven. 50 refuted. 0 times theorem prover too weak. 3706 trivial. 0 not checked. [2023-12-22 12:09:05,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:09:05,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512734748] [2023-12-22 12:09:05,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512734748] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:09:05,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:09:05,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 11 [2023-12-22 12:09:05,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282623278] [2023-12-22 12:09:05,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:09:05,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 12:09:05,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:09:05,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 12:09:05,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-22 12:09:05,189 INFO L87 Difference]: Start difference. First operand 6467 states and 6755 transitions. Second operand has 12 states, 12 states have (on average 118.5) internal successors, (1422), 11 states have internal predecessors, (1422), 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) [2023-12-22 12:09:25,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:09:32,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:09:40,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:09:42,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:09:42,384 INFO L93 Difference]: Finished difference Result 13227 states and 13907 transitions. [2023-12-22 12:09:42,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 12:09:42,384 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 118.5) internal successors, (1422), 11 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1636 [2023-12-22 12:09:42,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:09:42,391 INFO L225 Difference]: With dead ends: 13227 [2023-12-22 12:09:42,391 INFO L226 Difference]: Without dead ends: 8540 [2023-12-22 12:09:42,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3271 GetRequests, 3260 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-12-22 12:09:42,394 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 228 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 8489 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 8573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 8489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2023-12-22 12:09:42,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 184 Invalid, 8573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 8489 Invalid, 0 Unknown, 0 Unchecked, 36.4s Time] [2023-12-22 12:09:42,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8540 states. [2023-12-22 12:09:42,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8540 to 6467. [2023-12-22 12:09:42,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6466 states have (on average 1.043458088462728) internal successors, (6747), 6466 states have internal predecessors, (6747), 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) [2023-12-22 12:09:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 6747 transitions. [2023-12-22 12:09:42,466 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 6747 transitions. Word has length 1636 [2023-12-22 12:09:42,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:09:42,467 INFO L495 AbstractCegarLoop]: Abstraction has 6467 states and 6747 transitions. [2023-12-22 12:09:42,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 118.5) internal successors, (1422), 11 states have internal predecessors, (1422), 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) [2023-12-22 12:09:42,467 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 6747 transitions. [2023-12-22 12:09:42,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1672 [2023-12-22 12:09:42,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:09:42,483 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:09:42,493 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 [2023-12-22 12:09:42,688 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 [2023-12-22 12:09:42,688 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:09:42,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:09:42,689 INFO L85 PathProgramCache]: Analyzing trace with hash -61690032, now seen corresponding path program 1 times [2023-12-22 12:09:42,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:09:42,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793269088] [2023-12-22 12:09:42,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:09:42,693 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 [2023-12-22 12:09:42,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:09:42,694 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) [2023-12-22 12:09:42,695 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 [2023-12-22 12:09:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:09:43,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-22 12:09:43,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:09:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 8713 backedges. 1806 proven. 6284 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2023-12-22 12:09:48,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:09:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 8713 backedges. 4825 proven. 244 refuted. 0 times theorem prover too weak. 3644 trivial. 0 not checked. [2023-12-22 12:09:53,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:09:53,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793269088] [2023-12-22 12:09:53,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793269088] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:09:53,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:09:53,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2023-12-22 12:09:53,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464329041] [2023-12-22 12:09:53,937 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:09:53,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-22 12:09:53,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:09:53,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-22 12:09:53,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-22 12:09:53,939 INFO L87 Difference]: Start difference. First operand 6467 states and 6747 transitions. Second operand has 14 states, 14 states have (on average 115.42857142857143) internal successors, (1616), 13 states have internal predecessors, (1616), 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) [2023-12-22 12:10:09,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:10:09,454 INFO L93 Difference]: Finished difference Result 13241 states and 13900 transitions. [2023-12-22 12:10:09,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 12:10:09,455 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 115.42857142857143) internal successors, (1616), 13 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1671 [2023-12-22 12:10:09,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:10:09,464 INFO L225 Difference]: With dead ends: 13241 [2023-12-22 12:10:09,464 INFO L226 Difference]: Without dead ends: 8538 [2023-12-22 12:10:09,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3342 GetRequests, 3328 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-12-22 12:10:09,468 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 336 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 13264 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 13333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 13264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2023-12-22 12:10:09,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 282 Invalid, 13333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 13264 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2023-12-22 12:10:09,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8538 states. [2023-12-22 12:10:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8538 to 6467. [2023-12-22 12:10:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6466 states have (on average 1.0389730900092793) internal successors, (6718), 6466 states have internal predecessors, (6718), 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) [2023-12-22 12:10:09,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 6718 transitions. [2023-12-22 12:10:09,545 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 6718 transitions. Word has length 1671 [2023-12-22 12:10:09,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:10:09,545 INFO L495 AbstractCegarLoop]: Abstraction has 6467 states and 6718 transitions. [2023-12-22 12:10:09,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 115.42857142857143) internal successors, (1616), 13 states have internal predecessors, (1616), 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) [2023-12-22 12:10:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 6718 transitions. [2023-12-22 12:10:09,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1695 [2023-12-22 12:10:09,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:10:09,563 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:10:09,588 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 [2023-12-22 12:10:09,773 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 [2023-12-22 12:10:09,774 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:10:09,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:10:09,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1334775497, now seen corresponding path program 1 times [2023-12-22 12:10:09,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:10:09,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260013099] [2023-12-22 12:10:09,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:10:09,779 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 [2023-12-22 12:10:09,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:10:09,780 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) [2023-12-22 12:10:09,803 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 [2023-12-22 12:10:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:10:10,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 1837 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 12:10:10,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:10:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 8875 backedges. 966 proven. 7619 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-12-22 12:10:19,082 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:10:28,075 INFO L134 CoverageAnalysis]: Checked inductivity of 8875 backedges. 6839 proven. 693 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2023-12-22 12:10:28,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:10:28,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260013099] [2023-12-22 12:10:28,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260013099] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:10:28,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:10:28,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2023-12-22 12:10:28,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878863053] [2023-12-22 12:10:28,076 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:10:28,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-22 12:10:28,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:10:28,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-22 12:10:28,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2023-12-22 12:10:28,080 INFO L87 Difference]: Start difference. First operand 6467 states and 6718 transitions. Second operand has 18 states, 18 states have (on average 126.11111111111111) internal successors, (2270), 18 states have internal predecessors, (2270), 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) [2023-12-22 12:10:44,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 12:10:44,540 INFO L93 Difference]: Finished difference Result 13773 states and 14513 transitions. [2023-12-22 12:10:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-22 12:10:44,541 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 126.11111111111111) internal successors, (2270), 18 states have internal predecessors, (2270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1694 [2023-12-22 12:10:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 12:10:44,549 INFO L225 Difference]: With dead ends: 13773 [2023-12-22 12:10:44,549 INFO L226 Difference]: Without dead ends: 9136 [2023-12-22 12:10:44,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3406 GetRequests, 3375 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=866, Unknown=0, NotChecked=0, Total=1056 [2023-12-22 12:10:44,552 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 633 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 13425 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 13636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 13425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-22 12:10:44,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 231 Invalid, 13636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 13425 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2023-12-22 12:10:44,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9136 states. [2023-12-22 12:10:44,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9136 to 7357. [2023-12-22 12:10:44,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7357 states, 7356 states have (on average 1.0420065252854813) internal successors, (7665), 7356 states have internal predecessors, (7665), 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) [2023-12-22 12:10:44,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 7665 transitions. [2023-12-22 12:10:44,632 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 7665 transitions. Word has length 1694 [2023-12-22 12:10:44,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 12:10:44,633 INFO L495 AbstractCegarLoop]: Abstraction has 7357 states and 7665 transitions. [2023-12-22 12:10:44,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 126.11111111111111) internal successors, (2270), 18 states have internal predecessors, (2270), 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) [2023-12-22 12:10:44,634 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 7665 transitions. [2023-12-22 12:10:44,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1833 [2023-12-22 12:10:44,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 12:10:44,654 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:10:44,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-22 12:10:44,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 12:10:44,855 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 12:10:44,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 12:10:44,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1778182067, now seen corresponding path program 1 times [2023-12-22 12:10:44,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 12:10:44,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488942865] [2023-12-22 12:10:44,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 12:10:44,860 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 [2023-12-22 12:10:44,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 12:10:44,861 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 12:10:44,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 12:10:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 12:10:45,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 1984 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 12:10:45,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 12:10:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 10432 backedges. 2236 proven. 7757 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2023-12-22 12:10:50,514 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 12:11:15,642 INFO L134 CoverageAnalysis]: Checked inductivity of 10432 backedges. 7869 proven. 650 refuted. 0 times theorem prover too weak. 1913 trivial. 0 not checked. [2023-12-22 12:11:15,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 12:11:15,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488942865] [2023-12-22 12:11:15,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488942865] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 12:11:15,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 12:11:15,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 17 [2023-12-22 12:11:15,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899012037] [2023-12-22 12:11:15,644 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 12:11:15,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-22 12:11:15,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 12:11:15,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-22 12:11:15,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-22 12:11:15,648 INFO L87 Difference]: Start difference. First operand 7357 states and 7665 transitions. Second operand has 17 states, 17 states have (on average 126.47058823529412) internal successors, (2150), 17 states have internal predecessors, (2150), 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) [2023-12-22 12:11:24,405 WARN L293 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-22 12:11:57,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:01,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:05,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:09,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:13,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:17,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:21,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:25,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:29,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:33,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:37,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 12:12:41,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 12:12:42,426 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 (27)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 12:12:42,464 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 [2023-12-22 12:12:43,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-22 12:12:43,665 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-22 12:12:43,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-22 12:12:43,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3670 GetRequests, 3651 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2023-12-22 12:12:43,678 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 496 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 13474 mSolverCounterSat, 76 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 13563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 13474 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.6s IncrementalHoareTripleChecker+Time [2023-12-22 12:12:43,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 273 Invalid, 13563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 13474 Invalid, 12 Unknown, 0 Unchecked, 76.6s Time] [2023-12-22 12:12:43,679 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 12:12:43,679 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-22 12:12:43,682 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 12:12:43,684 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 12:12:43,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:12:43 BoogieIcfgContainer [2023-12-22 12:12:43,685 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 12:12:43,685 INFO L158 Benchmark]: Toolchain (without parser) took 860861.94ms. Allocated memory was 192.9MB in the beginning and 795.9MB in the end (delta: 602.9MB). Free memory was 128.7MB in the beginning and 467.4MB in the end (delta: -338.7MB). Peak memory consumption was 264.6MB. Max. memory is 8.0GB. [2023-12-22 12:12:43,686 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 192.9MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 12:12:43,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.15ms. Allocated memory was 192.9MB in the beginning and 289.4MB in the end (delta: 96.5MB). Free memory was 128.4MB in the beginning and 242.7MB in the end (delta: -114.3MB). Peak memory consumption was 38.4MB. Max. memory is 8.0GB. [2023-12-22 12:12:43,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.57ms. Allocated memory is still 289.4MB. Free memory was 242.7MB in the beginning and 236.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-22 12:12:43,686 INFO L158 Benchmark]: Boogie Preprocessor took 92.28ms. Allocated memory is still 289.4MB. Free memory was 236.4MB in the beginning and 229.5MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-22 12:12:43,686 INFO L158 Benchmark]: RCFGBuilder took 2492.46ms. Allocated memory is still 289.4MB. Free memory was 229.0MB in the beginning and 188.8MB in the end (delta: 40.2MB). Peak memory consumption was 80.1MB. Max. memory is 8.0GB. [2023-12-22 12:12:43,686 INFO L158 Benchmark]: TraceAbstraction took 857735.48ms. Allocated memory was 289.4MB in the beginning and 795.9MB in the end (delta: 506.5MB). Free memory was 188.3MB in the beginning and 467.4MB in the end (delta: -279.1MB). Peak memory consumption was 226.9MB. Max. memory is 8.0GB. [2023-12-22 12:12:43,687 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 192.9MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 481.15ms. Allocated memory was 192.9MB in the beginning and 289.4MB in the end (delta: 96.5MB). Free memory was 128.4MB in the beginning and 242.7MB in the end (delta: -114.3MB). Peak memory consumption was 38.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.57ms. Allocated memory is still 289.4MB. Free memory was 242.7MB in the beginning and 236.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 92.28ms. Allocated memory is still 289.4MB. Free memory was 236.4MB in the beginning and 229.5MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2492.46ms. Allocated memory is still 289.4MB. Free memory was 229.0MB in the beginning and 188.8MB in the end (delta: 40.2MB). Peak memory consumption was 80.1MB. Max. memory is 8.0GB. * TraceAbstraction took 857735.48ms. Allocated memory was 289.4MB in the beginning and 795.9MB in the end (delta: 506.5MB). Free memory was 188.3MB in the beginning and 467.4MB in the end (delta: -279.1MB). Peak memory consumption was 226.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 173). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 857.7s, OverallIterations: 26, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 518.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 mSolverCounterUnknown, 9974 SdHoareTripleChecker+Valid, 500.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9974 mSDsluCounter, 3434 SdHoareTripleChecker+Invalid, 459.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1589 mSDsCounter, 3433 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98223 IncrementalHoareTripleChecker+Invalid, 101671 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3433 mSolverCounterUnsat, 1845 mSDtfsCounter, 98223 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41261 GetRequests, 41010 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 32.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7654occurred in iteration=17, InterpolantAutomatonStates: 210, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 15060 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 325.6s InterpolantComputationTime, 22433 NumberOfCodeBlocks, 22433 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 41198 ConstructedInterpolants, 0 QuantifiedInterpolants, 289505 SizeOfPredicates, 26 NumberOfNonLiveVariables, 24681 ConjunctsInSsa, 192 ConjunctsInUnsatCore, 43 InterpolantComputations, 15 PerfectInterpolantSequences, 106829/162639 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 !ENTRY org.eclipse.osgi 4 0 2023-12-22 12:12:43.702 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de38932c9/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) Completed graceful shutdown