/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/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 09:49:24,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 09:49:24,442 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 09:49:24,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 09:49:24,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 09:49:24,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 09:49:24,459 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 09:49:24,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 09:49:24,460 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 09:49:24,460 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 09:49:24,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 09:49:24,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 09:49:24,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 09:49:24,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 09:49:24,461 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 09:49:24,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 09:49:24,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 09:49:24,462 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 09:49:24,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 09:49:24,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 09:49:24,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 09:49:24,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 09:49:24,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 09:49:24,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 09:49:24,464 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 09:49:24,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 09:49:24,464 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 09:49:24,465 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 09:49:24,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 09:49:24,465 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 09:49:24,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 09:49:24,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 09:49:24,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 09:49:24,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 09:49:24,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:49:24,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 09:49:24,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 09:49:24,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 09:49:24,467 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 09:49:24,467 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 09:49:24,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 09:49:24,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 09:49:24,468 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 09:49:24,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 09:49:24,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 09:49:24,468 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 09:49:24,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 09:49:24,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 09:49:24,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 09:49:24,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 09:49:24,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 09:49:24,692 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 09:49:24,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2023-12-25 09:49:25,747 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 09:49:26,015 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 09:49:26,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2023-12-25 09:49:26,037 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c2ea0834/553f41ad0b8a40b7a45f79b80644dc06/FLAG95b918dda [2023-12-25 09:49:26,049 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c2ea0834/553f41ad0b8a40b7a45f79b80644dc06 [2023-12-25 09:49:26,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 09:49:26,053 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 09:49:26,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 09:49:26,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 09:49:26,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 09:49:26,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc4e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26, skipping insertion in model container [2023-12-25 09:49:26,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,100 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 09:49:26,266 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[7365,7378] [2023-12-25 09:49:26,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:49:26,349 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 09:49:26,378 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[7365,7378] [2023-12-25 09:49:26,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:49:26,407 INFO L206 MainTranslator]: Completed translation [2023-12-25 09:49:26,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26 WrapperNode [2023-12-25 09:49:26,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 09:49:26,411 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 09:49:26,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 09:49:26,411 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 09:49:26,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,470 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 657 [2023-12-25 09:49:26,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 09:49:26,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 09:49:26,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 09:49:26,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 09:49:26,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,486 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,504 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]. [2023-12-25 09:49:26,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 09:49:26,521 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 09:49:26,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 09:49:26,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 09:49:26,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (1/1) ... [2023-12-25 09:49:26,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:49:26,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 09:49:26,573 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) [2023-12-25 09:49:26,625 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 [2023-12-25 09:49:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 09:49:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 09:49:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 09:49:26,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 09:49:26,761 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 09:49:26,762 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 09:49:27,298 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 09:49:27,320 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 09:49:27,320 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 09:49:27,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:49:27 BoogieIcfgContainer [2023-12-25 09:49:27,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 09:49:27,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 09:49:27,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 09:49:27,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 09:49:27,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 09:49:26" (1/3) ... [2023-12-25 09:49:27,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bdf7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:49:27, skipping insertion in model container [2023-12-25 09:49:27,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:49:26" (2/3) ... [2023-12-25 09:49:27,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bdf7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:49:27, skipping insertion in model container [2023-12-25 09:49:27,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:49:27" (3/3) ... [2023-12-25 09:49:27,329 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2023-12-25 09:49:27,340 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 09:49:27,341 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 09:49:27,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 09:49:27,383 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;@10c537a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 09:49:27,383 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 09:49:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 159 states have (on average 1.7169811320754718) internal successors, (273), 160 states have internal predecessors, (273), 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) [2023-12-25 09:49:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 09:49:27,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:27,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:27,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:27,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:27,397 INFO L85 PathProgramCache]: Analyzing trace with hash -334794023, now seen corresponding path program 1 times [2023-12-25 09:49:27,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:27,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716121016] [2023-12-25 09:49:27,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:27,406 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 [2023-12-25 09:49:27,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:27,414 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) [2023-12-25 09:49:27,418 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 [2023-12-25 09:49:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:27,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:49:27,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:27,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:27,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:27,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:27,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716121016] [2023-12-25 09:49:27,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716121016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:27,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:27,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:49:27,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448257499] [2023-12-25 09:49:27,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:27,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:49:27,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:27,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:49:27,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:27,659 INFO L87 Difference]: Start difference. First operand has 161 states, 159 states have (on average 1.7169811320754718) internal successors, (273), 160 states have internal predecessors, (273), 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 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-25 09:49:27,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:27,718 INFO L93 Difference]: Finished difference Result 381 states and 623 transitions. [2023-12-25 09:49:27,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:49:27,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2023-12-25 09:49:27,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:27,728 INFO L225 Difference]: With dead ends: 381 [2023-12-25 09:49:27,728 INFO L226 Difference]: Without dead ends: 259 [2023-12-25 09:49:27,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:27,732 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 211 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:27,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 601 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:49:27,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-25 09:49:27,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 257. [2023-12-25 09:49:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.50390625) internal successors, (385), 256 states have internal predecessors, (385), 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) [2023-12-25 09:49:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 385 transitions. [2023-12-25 09:49:27,766 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 385 transitions. Word has length 72 [2023-12-25 09:49:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:27,767 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 385 transitions. [2023-12-25 09:49:27,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-25 09:49:27,767 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 385 transitions. [2023-12-25 09:49:27,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-25 09:49:27,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:27,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:27,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 09:49:27,970 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 [2023-12-25 09:49:27,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:27,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:27,971 INFO L85 PathProgramCache]: Analyzing trace with hash 848511110, now seen corresponding path program 1 times [2023-12-25 09:49:27,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:27,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198400350] [2023-12-25 09:49:27,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:27,973 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 [2023-12-25 09:49:27,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:27,975 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) [2023-12-25 09:49:27,978 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 [2023-12-25 09:49:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:28,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:49:28,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:28,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:28,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:28,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:28,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198400350] [2023-12-25 09:49:28,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198400350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:28,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:28,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:49:28,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764990433] [2023-12-25 09:49:28,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:28,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:49:28,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:28,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:49:28,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:28,180 INFO L87 Difference]: Start difference. First operand 257 states and 385 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-12-25 09:49:28,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:28,203 INFO L93 Difference]: Finished difference Result 653 states and 1017 transitions. [2023-12-25 09:49:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:49:28,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2023-12-25 09:49:28,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:28,206 INFO L225 Difference]: With dead ends: 653 [2023-12-25 09:49:28,206 INFO L226 Difference]: Without dead ends: 439 [2023-12-25 09:49:28,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:28,207 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 168 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:28,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 537 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:49:28,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-25 09:49:28,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 437. [2023-12-25 09:49:28,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 1.5412844036697249) internal successors, (672), 436 states have internal predecessors, (672), 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) [2023-12-25 09:49:28,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 672 transitions. [2023-12-25 09:49:28,227 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 672 transitions. Word has length 73 [2023-12-25 09:49:28,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:28,227 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 672 transitions. [2023-12-25 09:49:28,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-12-25 09:49:28,227 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 672 transitions. [2023-12-25 09:49:28,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 09:49:28,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:28,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:28,234 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 [2023-12-25 09:49:28,432 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 [2023-12-25 09:49:28,432 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:28,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:28,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1828009384, now seen corresponding path program 1 times [2023-12-25 09:49:28,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:28,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668591423] [2023-12-25 09:49:28,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:28,434 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 [2023-12-25 09:49:28,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:28,436 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) [2023-12-25 09:49:28,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 09:49:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:28,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:49:28,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:28,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:28,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:28,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:28,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668591423] [2023-12-25 09:49:28,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668591423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:28,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:28,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:49:28,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080348975] [2023-12-25 09:49:28,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:28,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:49:28,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:28,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:49:28,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:28,588 INFO L87 Difference]: Start difference. First operand 437 states and 672 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-12-25 09:49:28,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:28,601 INFO L93 Difference]: Finished difference Result 1161 states and 1826 transitions. [2023-12-25 09:49:28,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:49:28,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2023-12-25 09:49:28,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:28,604 INFO L225 Difference]: With dead ends: 1161 [2023-12-25 09:49:28,604 INFO L226 Difference]: Without dead ends: 767 [2023-12-25 09:49:28,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:28,606 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 163 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:28,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 522 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:49:28,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-12-25 09:49:28,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 765. [2023-12-25 09:49:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 764 states have (on average 1.5602094240837696) internal successors, (1192), 764 states have internal predecessors, (1192), 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) [2023-12-25 09:49:28,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1192 transitions. [2023-12-25 09:49:28,661 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1192 transitions. Word has length 74 [2023-12-25 09:49:28,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:28,662 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 1192 transitions. [2023-12-25 09:49:28,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-12-25 09:49:28,662 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1192 transitions. [2023-12-25 09:49:28,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 09:49:28,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:28,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:28,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 09:49:28,869 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 [2023-12-25 09:49:28,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:28,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:28,871 INFO L85 PathProgramCache]: Analyzing trace with hash 158292751, now seen corresponding path program 1 times [2023-12-25 09:49:28,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:28,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457745913] [2023-12-25 09:49:28,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:28,872 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 [2023-12-25 09:49:28,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:28,876 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) [2023-12-25 09:49:28,877 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 [2023-12-25 09:49:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:28,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:49:29,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:29,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:29,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:29,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:29,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457745913] [2023-12-25 09:49:29,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457745913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:29,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:29,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:49:29,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260253370] [2023-12-25 09:49:29,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:29,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:49:29,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:29,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:49:29,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:29,081 INFO L87 Difference]: Start difference. First operand 765 states and 1192 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:49:29,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:29,098 INFO L93 Difference]: Finished difference Result 2081 states and 3282 transitions. [2023-12-25 09:49:29,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:49:29,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-25 09:49:29,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:29,103 INFO L225 Difference]: With dead ends: 2081 [2023-12-25 09:49:29,103 INFO L226 Difference]: Without dead ends: 1359 [2023-12-25 09:49:29,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:29,109 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 158 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:29,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 507 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:49:29,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2023-12-25 09:49:29,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1357. [2023-12-25 09:49:29,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 1.5663716814159292) internal successors, (2124), 1356 states have internal predecessors, (2124), 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) [2023-12-25 09:49:29,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 2124 transitions. [2023-12-25 09:49:29,131 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 2124 transitions. Word has length 75 [2023-12-25 09:49:29,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:29,148 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 2124 transitions. [2023-12-25 09:49:29,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:49:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 2124 transitions. [2023-12-25 09:49:29,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 09:49:29,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:29,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:29,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-25 09:49:29,350 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 [2023-12-25 09:49:29,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:29,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:29,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2027632149, now seen corresponding path program 1 times [2023-12-25 09:49:29,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:29,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323679272] [2023-12-25 09:49:29,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:29,352 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 [2023-12-25 09:49:29,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:29,353 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) [2023-12-25 09:49:29,355 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 [2023-12-25 09:49:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:29,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:49:29,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:29,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:29,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:29,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323679272] [2023-12-25 09:49:29,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323679272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:29,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:29,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:49:29,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358058189] [2023-12-25 09:49:29,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:29,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:49:29,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:29,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:49:29,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:29,486 INFO L87 Difference]: Start difference. First operand 1357 states and 2124 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2023-12-25 09:49:29,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:29,508 INFO L93 Difference]: Finished difference Result 3729 states and 5870 transitions. [2023-12-25 09:49:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:49:29,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2023-12-25 09:49:29,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:29,516 INFO L225 Difference]: With dead ends: 3729 [2023-12-25 09:49:29,516 INFO L226 Difference]: Without dead ends: 2415 [2023-12-25 09:49:29,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:29,518 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 153 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:29,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 492 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:49:29,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2023-12-25 09:49:29,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2413. [2023-12-25 09:49:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 2412 states have (on average 1.5638474295190714) internal successors, (3772), 2412 states have internal predecessors, (3772), 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) [2023-12-25 09:49:29,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 3772 transitions. [2023-12-25 09:49:29,586 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 3772 transitions. Word has length 76 [2023-12-25 09:49:29,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:29,587 INFO L495 AbstractCegarLoop]: Abstraction has 2413 states and 3772 transitions. [2023-12-25 09:49:29,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2023-12-25 09:49:29,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 3772 transitions. [2023-12-25 09:49:29,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 09:49:29,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:29,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:29,597 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 (6)] Ended with exit code 0 [2023-12-25 09:49:29,794 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 [2023-12-25 09:49:29,795 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:29,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:29,795 INFO L85 PathProgramCache]: Analyzing trace with hash -113675860, now seen corresponding path program 1 times [2023-12-25 09:49:29,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:29,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119852724] [2023-12-25 09:49:29,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:29,796 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 [2023-12-25 09:49:29,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:29,797 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) [2023-12-25 09:49:29,824 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 [2023-12-25 09:49:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:29,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:49:29,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:29,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:29,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119852724] [2023-12-25 09:49:29,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119852724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:29,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:29,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:49:29,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254031642] [2023-12-25 09:49:29,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:29,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:49:29,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:29,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:49:29,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:29,946 INFO L87 Difference]: Start difference. First operand 2413 states and 3772 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2023-12-25 09:49:29,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:29,974 INFO L93 Difference]: Finished difference Result 6641 states and 10398 transitions. [2023-12-25 09:49:29,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:49:29,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-25 09:49:29,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:29,985 INFO L225 Difference]: With dead ends: 6641 [2023-12-25 09:49:29,985 INFO L226 Difference]: Without dead ends: 4271 [2023-12-25 09:49:29,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:29,990 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 148 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:29,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 477 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:49:29,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4271 states. [2023-12-25 09:49:30,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4271 to 4269. [2023-12-25 09:49:30,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4269 states, 4268 states have (on average 1.5548266166822868) internal successors, (6636), 4268 states have internal predecessors, (6636), 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) [2023-12-25 09:49:30,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4269 states to 4269 states and 6636 transitions. [2023-12-25 09:49:30,059 INFO L78 Accepts]: Start accepts. Automaton has 4269 states and 6636 transitions. Word has length 77 [2023-12-25 09:49:30,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:30,059 INFO L495 AbstractCegarLoop]: Abstraction has 4269 states and 6636 transitions. [2023-12-25 09:49:30,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2023-12-25 09:49:30,059 INFO L276 IsEmpty]: Start isEmpty. Operand 4269 states and 6636 transitions. [2023-12-25 09:49:30,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 09:49:30,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:30,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:30,063 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 (7)] Ended with exit code 0 [2023-12-25 09:49:30,263 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 [2023-12-25 09:49:30,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:30,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:30,264 INFO L85 PathProgramCache]: Analyzing trace with hash 530651538, now seen corresponding path program 1 times [2023-12-25 09:49:30,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:30,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738700986] [2023-12-25 09:49:30,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:30,264 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 [2023-12-25 09:49:30,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:30,265 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) [2023-12-25 09:49:30,266 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 [2023-12-25 09:49:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:30,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 09:49:30,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:30,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:30,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:30,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:30,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738700986] [2023-12-25 09:49:30,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738700986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:30,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:30,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:49:30,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132634120] [2023-12-25 09:49:30,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:30,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:49:30,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:30,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:49:30,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:49:30,587 INFO L87 Difference]: Start difference. First operand 4269 states and 6636 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2023-12-25 09:49:30,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:30,900 INFO L93 Difference]: Finished difference Result 25785 states and 39858 transitions. [2023-12-25 09:49:30,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:49:30,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78 [2023-12-25 09:49:30,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:30,969 INFO L225 Difference]: With dead ends: 25785 [2023-12-25 09:49:30,969 INFO L226 Difference]: Without dead ends: 21559 [2023-12-25 09:49:30,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:49:30,983 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 925 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:30,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 2029 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:49:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21559 states. [2023-12-25 09:49:31,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21559 to 21549. [2023-12-25 09:49:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21549 states, 21548 states have (on average 1.5405606088732133) internal successors, (33196), 21548 states have internal predecessors, (33196), 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) [2023-12-25 09:49:31,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21549 states to 21549 states and 33196 transitions. [2023-12-25 09:49:31,433 INFO L78 Accepts]: Start accepts. Automaton has 21549 states and 33196 transitions. Word has length 78 [2023-12-25 09:49:31,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:31,433 INFO L495 AbstractCegarLoop]: Abstraction has 21549 states and 33196 transitions. [2023-12-25 09:49:31,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2023-12-25 09:49:31,434 INFO L276 IsEmpty]: Start isEmpty. Operand 21549 states and 33196 transitions. [2023-12-25 09:49:31,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 09:49:31,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:31,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:31,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 09:49:31,709 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 [2023-12-25 09:49:31,710 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:31,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:31,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1205914843, now seen corresponding path program 1 times [2023-12-25 09:49:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:31,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509982954] [2023-12-25 09:49:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:31,711 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 [2023-12-25 09:49:31,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:31,723 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) [2023-12-25 09:49:31,772 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 [2023-12-25 09:49:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:31,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:49:31,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:32,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:32,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:32,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:32,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509982954] [2023-12-25 09:49:32,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509982954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:32,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:32,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:49:32,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628975817] [2023-12-25 09:49:32,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:32,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:49:32,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:32,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:49:32,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:49:32,217 INFO L87 Difference]: Start difference. First operand 21549 states and 33196 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2023-12-25 09:49:32,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:32,633 INFO L93 Difference]: Finished difference Result 64561 states and 99502 transitions. [2023-12-25 09:49:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:49:32,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 80 [2023-12-25 09:49:32,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:32,704 INFO L225 Difference]: With dead ends: 64561 [2023-12-25 09:49:32,704 INFO L226 Difference]: Without dead ends: 43055 [2023-12-25 09:49:32,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:49:32,739 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 768 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:32,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 252 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:49:32,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43055 states. [2023-12-25 09:49:33,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43055 to 43053. [2023-12-25 09:49:33,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43053 states, 43052 states have (on average 1.5329369134999535) internal successors, (65996), 43052 states have internal predecessors, (65996), 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) [2023-12-25 09:49:33,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43053 states to 43053 states and 65996 transitions. [2023-12-25 09:49:33,771 INFO L78 Accepts]: Start accepts. Automaton has 43053 states and 65996 transitions. Word has length 80 [2023-12-25 09:49:33,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:33,771 INFO L495 AbstractCegarLoop]: Abstraction has 43053 states and 65996 transitions. [2023-12-25 09:49:33,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2023-12-25 09:49:33,772 INFO L276 IsEmpty]: Start isEmpty. Operand 43053 states and 65996 transitions. [2023-12-25 09:49:33,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 09:49:33,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:33,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:33,780 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 (9)] Forceful destruction successful, exit code 0 [2023-12-25 09:49:33,977 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 [2023-12-25 09:49:33,978 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:33,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:33,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1048966976, now seen corresponding path program 1 times [2023-12-25 09:49:33,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:33,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17321106] [2023-12-25 09:49:33,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:34,152 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 [2023-12-25 09:49:34,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:34,165 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) [2023-12-25 09:49:34,177 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 [2023-12-25 09:49:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:34,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 09:49:34,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:35,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:35,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:35,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17321106] [2023-12-25 09:49:35,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17321106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:35,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:35,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:49:35,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590712231] [2023-12-25 09:49:35,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:35,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:49:35,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:35,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:49:35,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:49:35,262 INFO L87 Difference]: Start difference. First operand 43053 states and 65996 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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) [2023-12-25 09:49:36,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:36,105 INFO L93 Difference]: Finished difference Result 243323 states and 373587 transitions. [2023-12-25 09:49:36,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:49:36,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 80 [2023-12-25 09:49:36,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:36,618 INFO L225 Difference]: With dead ends: 243323 [2023-12-25 09:49:36,619 INFO L226 Difference]: Without dead ends: 200313 [2023-12-25 09:49:36,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:49:36,683 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1633 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:36,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1633 Valid, 1528 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:49:36,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200313 states. [2023-12-25 09:49:38,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200313 to 86061. [2023-12-25 09:49:38,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86061 states, 86060 states have (on average 1.5153613757843365) internal successors, (130412), 86060 states have internal predecessors, (130412), 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) [2023-12-25 09:49:38,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86061 states to 86061 states and 130412 transitions. [2023-12-25 09:49:38,793 INFO L78 Accepts]: Start accepts. Automaton has 86061 states and 130412 transitions. Word has length 80 [2023-12-25 09:49:38,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:38,793 INFO L495 AbstractCegarLoop]: Abstraction has 86061 states and 130412 transitions. [2023-12-25 09:49:38,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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) [2023-12-25 09:49:38,793 INFO L276 IsEmpty]: Start isEmpty. Operand 86061 states and 130412 transitions. [2023-12-25 09:49:38,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:49:38,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:38,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:38,800 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 [2023-12-25 09:49:39,003 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 [2023-12-25 09:49:39,003 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:39,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:39,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1861218309, now seen corresponding path program 1 times [2023-12-25 09:49:39,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:39,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038272626] [2023-12-25 09:49:39,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:39,004 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 [2023-12-25 09:49:39,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:39,007 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) [2023-12-25 09:49:39,008 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 [2023-12-25 09:49:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:39,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:49:39,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:39,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:39,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:39,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:39,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038272626] [2023-12-25 09:49:39,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038272626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:39,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:39,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:49:39,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886353552] [2023-12-25 09:49:39,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:39,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:49:39,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:39,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:49:39,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:49:39,095 INFO L87 Difference]: Start difference. First operand 86061 states and 130412 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2023-12-25 09:49:39,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:39,933 INFO L93 Difference]: Finished difference Result 175151 states and 263853 transitions. [2023-12-25 09:49:39,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:49:39,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2023-12-25 09:49:39,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:40,266 INFO L225 Difference]: With dead ends: 175151 [2023-12-25 09:49:40,266 INFO L226 Difference]: Without dead ends: 175149 [2023-12-25 09:49:40,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:49:40,346 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 358 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:40,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 789 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:49:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175149 states. [2023-12-25 09:49:41,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175149 to 89133. [2023-12-25 09:49:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89133 states, 89132 states have (on average 1.4975990665529777) internal successors, (133484), 89132 states have internal predecessors, (133484), 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) [2023-12-25 09:49:42,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89133 states to 89133 states and 133484 transitions. [2023-12-25 09:49:42,307 INFO L78 Accepts]: Start accepts. Automaton has 89133 states and 133484 transitions. Word has length 81 [2023-12-25 09:49:42,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:42,308 INFO L495 AbstractCegarLoop]: Abstraction has 89133 states and 133484 transitions. [2023-12-25 09:49:42,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2023-12-25 09:49:42,308 INFO L276 IsEmpty]: Start isEmpty. Operand 89133 states and 133484 transitions. [2023-12-25 09:49:42,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 09:49:42,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:42,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:42,321 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 (11)] Ended with exit code 0 [2023-12-25 09:49:42,509 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 [2023-12-25 09:49:42,509 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:42,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:42,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1852619600, now seen corresponding path program 1 times [2023-12-25 09:49:42,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:42,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664750281] [2023-12-25 09:49:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:42,510 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 [2023-12-25 09:49:42,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:42,511 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) [2023-12-25 09:49:42,513 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 [2023-12-25 09:49:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:42,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:49:42,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:42,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:49:42,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:42,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664750281] [2023-12-25 09:49:42,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664750281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:49:42,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:49:42,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:49:42,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20367431] [2023-12-25 09:49:42,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:49:42,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:49:42,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:42,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:49:42,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:42,685 INFO L87 Difference]: Start difference. First operand 89133 states and 133484 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2023-12-25 09:49:43,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:43,336 INFO L93 Difference]: Finished difference Result 199123 states and 297728 transitions. [2023-12-25 09:49:43,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:49:43,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2023-12-25 09:49:43,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:49:43,480 INFO L225 Difference]: With dead ends: 199123 [2023-12-25 09:49:43,480 INFO L226 Difference]: Without dead ends: 110033 [2023-12-25 09:49:43,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:49:43,535 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 136 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:49:43,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 460 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:49:43,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110033 states. [2023-12-25 09:49:44,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110033 to 110031. [2023-12-25 09:49:44,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110031 states, 110030 states have (on average 1.4899027537944196) internal successors, (163934), 110030 states have internal predecessors, (163934), 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) [2023-12-25 09:49:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110031 states to 110031 states and 163934 transitions. [2023-12-25 09:49:45,342 INFO L78 Accepts]: Start accepts. Automaton has 110031 states and 163934 transitions. Word has length 82 [2023-12-25 09:49:45,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:49:45,342 INFO L495 AbstractCegarLoop]: Abstraction has 110031 states and 163934 transitions. [2023-12-25 09:49:45,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2023-12-25 09:49:45,343 INFO L276 IsEmpty]: Start isEmpty. Operand 110031 states and 163934 transitions. [2023-12-25 09:49:45,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 09:49:45,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:49:45,371 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:49:45,387 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 [2023-12-25 09:49:45,574 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 [2023-12-25 09:49:45,575 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:49:45,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:49:45,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1688420547, now seen corresponding path program 1 times [2023-12-25 09:49:45,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:49:45,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543715517] [2023-12-25 09:49:45,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:49:45,576 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 [2023-12-25 09:49:45,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:49:45,577 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) [2023-12-25 09:49:45,582 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 [2023-12-25 09:49:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:49:45,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:49:45,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:49:46,625 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:46,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:49:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:49:46,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:49:46,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543715517] [2023-12-25 09:49:46,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543715517] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:49:46,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:49:46,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:49:46,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494535461] [2023-12-25 09:49:46,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:49:46,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:49:46,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:49:46,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:49:46,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:49:46,869 INFO L87 Difference]: Start difference. First operand 110031 states and 163934 transitions. Second operand has 16 states, 16 states have (on average 12.375) internal successors, (198), 15 states have internal predecessors, (198), 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) [2023-12-25 09:49:58,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:49:58,148 INFO L93 Difference]: Finished difference Result 1131403 states and 1668456 transitions. [2023-12-25 09:49:58,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-25 09:49:58,149 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.375) internal successors, (198), 15 states have internal predecessors, (198), 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 111 [2023-12-25 09:49:58,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:50:00,386 INFO L225 Difference]: With dead ends: 1131403 [2023-12-25 09:50:00,386 INFO L226 Difference]: Without dead ends: 1021417 [2023-12-25 09:50:00,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4696 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2821, Invalid=10061, Unknown=0, NotChecked=0, Total=12882 [2023-12-25 09:50:00,525 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 7102 mSDsluCounter, 3622 mSDsCounter, 0 mSdLazyCounter, 3319 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7102 SdHoareTripleChecker+Valid, 4176 SdHoareTripleChecker+Invalid, 3342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:50:00,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7102 Valid, 4176 Invalid, 3342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3319 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 09:50:01,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021417 states. [2023-12-25 09:50:07,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021417 to 135471. [2023-12-25 09:50:07,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135471 states, 135470 states have (on average 1.4764449693659112) internal successors, (200014), 135470 states have internal predecessors, (200014), 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) [2023-12-25 09:50:07,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135471 states to 135471 states and 200014 transitions. [2023-12-25 09:50:07,984 INFO L78 Accepts]: Start accepts. Automaton has 135471 states and 200014 transitions. Word has length 111 [2023-12-25 09:50:07,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:50:07,984 INFO L495 AbstractCegarLoop]: Abstraction has 135471 states and 200014 transitions. [2023-12-25 09:50:07,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.375) internal successors, (198), 15 states have internal predecessors, (198), 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) [2023-12-25 09:50:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 135471 states and 200014 transitions. [2023-12-25 09:50:08,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 09:50:08,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:50:08,016 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:50:08,020 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 [2023-12-25 09:50:08,220 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 [2023-12-25 09:50:08,221 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:50:08,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:50:08,221 INFO L85 PathProgramCache]: Analyzing trace with hash 312701338, now seen corresponding path program 1 times [2023-12-25 09:50:08,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:50:08,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388959871] [2023-12-25 09:50:08,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:50:08,222 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 [2023-12-25 09:50:08,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:50:08,229 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) [2023-12-25 09:50:08,232 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 [2023-12-25 09:50:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:50:08,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:50:08,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:50:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 09:50:08,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:50:08,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:50:08,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388959871] [2023-12-25 09:50:08,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388959871] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:50:08,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:50:08,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:50:08,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110542742] [2023-12-25 09:50:08,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:50:08,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:50:08,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:50:08,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:50:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:50:08,565 INFO L87 Difference]: Start difference. First operand 135471 states and 200014 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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) [2023-12-25 09:50:10,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:50:10,246 INFO L93 Difference]: Finished difference Result 405627 states and 598986 transitions. [2023-12-25 09:50:10,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:50:10,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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 111 [2023-12-25 09:50:10,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:50:10,712 INFO L225 Difference]: With dead ends: 405627 [2023-12-25 09:50:10,712 INFO L226 Difference]: Without dead ends: 270201 [2023-12-25 09:50:10,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:50:10,814 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 575 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:50:10,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 260 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:50:10,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270201 states. [2023-12-25 09:50:13,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270201 to 270199. [2023-12-25 09:50:14,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270199 states, 270198 states have (on average 1.46875994640967) internal successors, (396856), 270198 states have internal predecessors, (396856), 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) [2023-12-25 09:50:15,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270199 states to 270199 states and 396856 transitions. [2023-12-25 09:50:15,019 INFO L78 Accepts]: Start accepts. Automaton has 270199 states and 396856 transitions. Word has length 111 [2023-12-25 09:50:15,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:50:15,019 INFO L495 AbstractCegarLoop]: Abstraction has 270199 states and 396856 transitions. [2023-12-25 09:50:15,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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) [2023-12-25 09:50:15,019 INFO L276 IsEmpty]: Start isEmpty. Operand 270199 states and 396856 transitions. [2023-12-25 09:50:15,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 09:50:15,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:50:15,047 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:50:15,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-25 09:50:15,249 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 [2023-12-25 09:50:15,250 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:50:15,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:50:15,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1053013951, now seen corresponding path program 1 times [2023-12-25 09:50:15,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:50:15,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864348535] [2023-12-25 09:50:15,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:50:15,250 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 [2023-12-25 09:50:15,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:50:15,253 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) [2023-12-25 09:50:15,284 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 [2023-12-25 09:50:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:50:15,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:50:15,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:50:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:50:16,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:50:16,475 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:50:16,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:50:16,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864348535] [2023-12-25 09:50:16,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864348535] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:50:16,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:50:16,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:50:16,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120079652] [2023-12-25 09:50:16,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:50:16,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:50:16,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:50:16,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:50:16,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:50:16,477 INFO L87 Difference]: Start difference. First operand 270199 states and 396856 transitions. Second operand has 16 states, 16 states have (on average 12.625) internal successors, (202), 15 states have internal predecessors, (202), 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) [2023-12-25 09:50:33,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:50:33,407 INFO L93 Difference]: Finished difference Result 2427631 states and 3536508 transitions. [2023-12-25 09:50:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-25 09:50:33,408 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.625) internal successors, (202), 15 states have internal predecessors, (202), 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 111 [2023-12-25 09:50:33,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:50:38,587 INFO L225 Difference]: With dead ends: 2427631 [2023-12-25 09:50:38,587 INFO L226 Difference]: Without dead ends: 2157485 [2023-12-25 09:50:39,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4664 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2821, Invalid=10061, Unknown=0, NotChecked=0, Total=12882 [2023-12-25 09:50:39,194 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 6117 mSDsluCounter, 4316 mSDsCounter, 0 mSdLazyCounter, 3991 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6117 SdHoareTripleChecker+Valid, 4947 SdHoareTripleChecker+Invalid, 4012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:50:39,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6117 Valid, 4947 Invalid, 4012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3991 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-25 09:50:40,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157485 states. [2023-12-25 09:50:57,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157485 to 310095. [2023-12-25 09:50:57,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310095 states, 310094 states have (on average 1.4595058272652808) internal successors, (452584), 310094 states have internal predecessors, (452584), 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) [2023-12-25 09:50:58,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310095 states to 310095 states and 452584 transitions. [2023-12-25 09:50:58,865 INFO L78 Accepts]: Start accepts. Automaton has 310095 states and 452584 transitions. Word has length 111 [2023-12-25 09:50:58,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:50:58,867 INFO L495 AbstractCegarLoop]: Abstraction has 310095 states and 452584 transitions. [2023-12-25 09:50:58,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.625) internal successors, (202), 15 states have internal predecessors, (202), 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) [2023-12-25 09:50:58,867 INFO L276 IsEmpty]: Start isEmpty. Operand 310095 states and 452584 transitions. [2023-12-25 09:50:58,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 09:50:58,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:50:58,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:50:58,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 09:50:59,103 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 [2023-12-25 09:50:59,104 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:50:59,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:50:59,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1176699336, now seen corresponding path program 1 times [2023-12-25 09:50:59,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:50:59,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269929267] [2023-12-25 09:50:59,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:50:59,105 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 [2023-12-25 09:50:59,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:50:59,106 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) [2023-12-25 09:50:59,106 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 [2023-12-25 09:50:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:50:59,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:50:59,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:50:59,419 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 09:50:59,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:50:59,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:50:59,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269929267] [2023-12-25 09:50:59,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269929267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:50:59,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:50:59,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:50:59,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376719457] [2023-12-25 09:50:59,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:50:59,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:50:59,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:50:59,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:50:59,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:50:59,421 INFO L87 Difference]: Start difference. First operand 310095 states and 452584 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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) [2023-12-25 09:51:02,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:51:02,878 INFO L93 Difference]: Finished difference Result 930179 states and 1357642 transitions. [2023-12-25 09:51:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:51:02,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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 111 [2023-12-25 09:51:02,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:51:04,457 INFO L225 Difference]: With dead ends: 930179 [2023-12-25 09:51:04,457 INFO L226 Difference]: Without dead ends: 620137 [2023-12-25 09:51:04,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:51:04,632 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 750 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:51:04,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 268 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:51:05,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620137 states. [2023-12-25 09:51:13,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620137 to 620135. [2023-12-25 09:51:13,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620135 states, 620134 states have (on average 1.452873088719535) internal successors, (900976), 620134 states have internal predecessors, (900976), 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) [2023-12-25 09:51:15,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620135 states to 620135 states and 900976 transitions. [2023-12-25 09:51:15,706 INFO L78 Accepts]: Start accepts. Automaton has 620135 states and 900976 transitions. Word has length 111 [2023-12-25 09:51:15,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:51:15,706 INFO L495 AbstractCegarLoop]: Abstraction has 620135 states and 900976 transitions. [2023-12-25 09:51:15,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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) [2023-12-25 09:51:15,707 INFO L276 IsEmpty]: Start isEmpty. Operand 620135 states and 900976 transitions. [2023-12-25 09:51:15,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 09:51:15,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:51:15,745 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:51:15,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-25 09:51:15,949 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 [2023-12-25 09:51:15,949 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:51:15,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:51:15,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1543420035, now seen corresponding path program 1 times [2023-12-25 09:51:15,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:51:15,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672225830] [2023-12-25 09:51:15,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:51:15,950 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 [2023-12-25 09:51:15,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:51:15,951 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) [2023-12-25 09:51:15,953 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 [2023-12-25 09:51:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:51:16,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:51:16,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:51:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:51:16,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:51:16,968 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:51:16,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:51:16,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672225830] [2023-12-25 09:51:16,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672225830] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:51:16,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:51:16,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:51:16,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059713838] [2023-12-25 09:51:16,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:51:16,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:51:16,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:51:16,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:51:16,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:51:16,971 INFO L87 Difference]: Start difference. First operand 620135 states and 900976 transitions. Second operand has 16 states, 16 states have (on average 12.875) internal successors, (206), 15 states have internal predecessors, (206), 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) [2023-12-25 09:51:44,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:51:44,744 INFO L93 Difference]: Finished difference Result 4783787 states and 6897756 transitions. [2023-12-25 09:51:44,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-25 09:51:44,761 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 15 states have internal predecessors, (206), 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 111 [2023-12-25 09:51:44,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:51:56,551 INFO L225 Difference]: With dead ends: 4783787 [2023-12-25 09:51:56,551 INFO L226 Difference]: Without dead ends: 4163705 [2023-12-25 09:51:58,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4669 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2821, Invalid=10061, Unknown=0, NotChecked=0, Total=12882 [2023-12-25 09:51:58,279 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 5966 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 3863 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5966 SdHoareTripleChecker+Valid, 4697 SdHoareTripleChecker+Invalid, 3883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:51:58,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5966 Valid, 4697 Invalid, 3883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3863 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-25 09:52:01,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163705 states.