/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/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:04:16,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:04:16,682 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 18:04:16,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:04:16,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:04:16,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:04:16,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:04:16,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:04:16,706 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:04:16,707 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:04:16,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:04:16,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:04:16,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:04:16,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:04:16,708 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:04:16,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:04:16,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:04:16,709 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:04:16,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:04:16,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:04:16,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:04:16,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:04:16,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:04:16,710 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:04:16,711 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:04:16,711 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:04:16,711 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:04:16,711 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:04:16,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:04:16,712 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:04:16,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:04:16,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:04:16,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:04:16,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:04:16,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:04:16,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:04:16,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:04:16,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:04:16,713 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:04:16,714 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:04:16,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:04:16,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:04:16,714 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:04:16,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:04:16,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:04:16,714 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:04:16,715 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:04:16,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:04:16,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:04:16,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:04:16,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:04:16,917 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:04:16,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2023-12-16 18:04:17,888 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:04:18,094 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:04:18,095 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2023-12-16 18:04:18,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a24eda5ef/7e40e2c3a547463d8421ec0061046fd7/FLAGdb2962240 [2023-12-16 18:04:18,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a24eda5ef/7e40e2c3a547463d8421ec0061046fd7 [2023-12-16 18:04:18,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:04:18,129 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:04:18,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:04:18,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:04:18,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:04:18,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258d6b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18, skipping insertion in model container [2023-12-16 18:04:18,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,174 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:04:18,400 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/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c[26555,26568] [2023-12-16 18:04:18,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:04:18,420 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:04:18,485 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/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c[26555,26568] [2023-12-16 18:04:18,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:04:18,513 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:04:18,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18 WrapperNode [2023-12-16 18:04:18,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:04:18,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:04:18,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:04:18,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:04:18,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,555 INFO L138 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 494 [2023-12-16 18:04:18,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:04:18,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:04:18,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:04:18,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:04:18,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,571 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,596 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 18:04:18,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,617 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:04:18,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:04:18,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:04:18,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:04:18,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (1/1) ... [2023-12-16 18:04:18,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:04:18,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:04:18,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 18:04:18,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 18:04:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:04:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:04:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:04:18,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:04:18,812 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:04:18,813 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:04:19,335 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:04:19,370 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:04:19,370 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 18:04:19,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:04:19 BoogieIcfgContainer [2023-12-16 18:04:19,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:04:19,372 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:04:19,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:04:19,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:04:19,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:04:18" (1/3) ... [2023-12-16 18:04:19,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c14176d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:04:19, skipping insertion in model container [2023-12-16 18:04:19,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:04:18" (2/3) ... [2023-12-16 18:04:19,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c14176d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:04:19, skipping insertion in model container [2023-12-16 18:04:19,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:04:19" (3/3) ... [2023-12-16 18:04:19,377 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2023-12-16 18:04:19,388 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:04:19,388 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 18:04:19,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:04:19,432 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;@5b24d80f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:04:19,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 18:04:19,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 125 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:19,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 18:04:19,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:19,457 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] [2023-12-16 18:04:19,457 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:19,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:19,462 INFO L85 PathProgramCache]: Analyzing trace with hash -675569035, now seen corresponding path program 1 times [2023-12-16 18:04:19,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:19,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320053185] [2023-12-16 18:04:19,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:19,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:19,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:19,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:19,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 18:04:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:19,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 18:04:19,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:19,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:19,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:19,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:19,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320053185] [2023-12-16 18:04:19,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320053185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:19,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:19,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 18:04:19,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181064910] [2023-12-16 18:04:19,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:19,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 18:04:19,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:19,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 18:04:19,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:04:19,673 INFO L87 Difference]: Start difference. First operand has 126 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 125 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:19,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:19,713 INFO L93 Difference]: Finished difference Result 186 states and 327 transitions. [2023-12-16 18:04:19,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 18:04:19,715 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2023-12-16 18:04:19,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:19,723 INFO L225 Difference]: With dead ends: 186 [2023-12-16 18:04:19,724 INFO L226 Difference]: Without dead ends: 124 [2023-12-16 18:04:19,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:04:19,729 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:19,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 219 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:19,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-16 18:04:19,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-12-16 18:04:19,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.8048780487804879) internal successors, (222), 123 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:19,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 222 transitions. [2023-12-16 18:04:19,767 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 222 transitions. Word has length 26 [2023-12-16 18:04:19,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:19,767 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 222 transitions. [2023-12-16 18:04:19,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:19,768 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 222 transitions. [2023-12-16 18:04:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 18:04:19,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:19,770 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] [2023-12-16 18:04:19,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:19,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:19,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:19,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:19,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1813959927, now seen corresponding path program 1 times [2023-12-16 18:04:19,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:19,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429166051] [2023-12-16 18:04:19,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:19,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:19,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:19,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:19,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 18:04:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:20,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:04:20,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:20,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:20,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:20,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429166051] [2023-12-16 18:04:20,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429166051] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:20,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:20,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:04:20,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444220704] [2023-12-16 18:04:20,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:20,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:04:20,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:20,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:04:20,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:04:20,145 INFO L87 Difference]: Start difference. First operand 124 states and 222 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:20,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:20,239 INFO L93 Difference]: Finished difference Result 186 states and 321 transitions. [2023-12-16 18:04:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:04:20,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2023-12-16 18:04:20,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:20,243 INFO L225 Difference]: With dead ends: 186 [2023-12-16 18:04:20,244 INFO L226 Difference]: Without dead ends: 124 [2023-12-16 18:04:20,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:04:20,245 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 0 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:20,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 593 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:04:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-16 18:04:20,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-12-16 18:04:20,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 123 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:20,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 161 transitions. [2023-12-16 18:04:20,254 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 161 transitions. Word has length 26 [2023-12-16 18:04:20,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:20,254 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 161 transitions. [2023-12-16 18:04:20,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 161 transitions. [2023-12-16 18:04:20,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 18:04:20,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:20,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:20,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:20,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:20,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:20,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:20,459 INFO L85 PathProgramCache]: Analyzing trace with hash -2084592409, now seen corresponding path program 1 times [2023-12-16 18:04:20,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:20,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031624492] [2023-12-16 18:04:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:20,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:20,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:20,461 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:20,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 18:04:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:20,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:04:20,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:22,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:22,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:22,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:22,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031624492] [2023-12-16 18:04:22,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031624492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:22,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:22,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 18:04:22,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373113168] [2023-12-16 18:04:22,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:22,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 18:04:22,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:22,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 18:04:22,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:04:22,009 INFO L87 Difference]: Start difference. First operand 124 states and 161 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:22,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:22,341 INFO L93 Difference]: Finished difference Result 655 states and 1025 transitions. [2023-12-16 18:04:22,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 18:04:22,343 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 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 86 [2023-12-16 18:04:22,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:22,345 INFO L225 Difference]: With dead ends: 655 [2023-12-16 18:04:22,346 INFO L226 Difference]: Without dead ends: 596 [2023-12-16 18:04:22,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:04:22,347 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 798 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:22,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 1531 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 18:04:22,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-12-16 18:04:22,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 238. [2023-12-16 18:04:22,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.4683544303797469) internal successors, (348), 237 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 348 transitions. [2023-12-16 18:04:22,359 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 348 transitions. Word has length 86 [2023-12-16 18:04:22,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:22,360 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 348 transitions. [2023-12-16 18:04:22,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 348 transitions. [2023-12-16 18:04:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 18:04:22,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:22,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:22,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:22,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:22,569 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:22,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:22,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1695805079, now seen corresponding path program 1 times [2023-12-16 18:04:22,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:22,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123664457] [2023-12-16 18:04:22,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:22,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:22,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:22,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:22,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 18:04:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:22,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:22,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:22,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:22,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:22,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123664457] [2023-12-16 18:04:22,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123664457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:22,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:22,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:22,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286022973] [2023-12-16 18:04:22,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:22,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:22,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:22,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:22,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:22,757 INFO L87 Difference]: Start difference. First operand 238 states and 348 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:22,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:22,794 INFO L93 Difference]: Finished difference Result 568 states and 886 transitions. [2023-12-16 18:04:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:22,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 88 [2023-12-16 18:04:22,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:22,796 INFO L225 Difference]: With dead ends: 568 [2023-12-16 18:04:22,796 INFO L226 Difference]: Without dead ends: 395 [2023-12-16 18:04:22,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:22,797 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 66 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:22,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 247 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:22,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-12-16 18:04:22,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 393. [2023-12-16 18:04:22,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 392 states have (on average 1.5229591836734695) internal successors, (597), 392 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:22,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 597 transitions. [2023-12-16 18:04:22,818 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 597 transitions. Word has length 88 [2023-12-16 18:04:22,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:22,818 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 597 transitions. [2023-12-16 18:04:22,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:22,818 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 597 transitions. [2023-12-16 18:04:22,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 18:04:22,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:22,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:22,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:23,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:23,023 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:23,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:23,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1082771095, now seen corresponding path program 1 times [2023-12-16 18:04:23,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:23,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168290001] [2023-12-16 18:04:23,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:23,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:23,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:23,025 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:23,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 18:04:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:23,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:04:23,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:23,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:23,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:23,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168290001] [2023-12-16 18:04:23,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168290001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:23,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:23,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:04:23,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91098167] [2023-12-16 18:04:23,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:23,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:04:23,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:23,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:04:23,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:04:23,150 INFO L87 Difference]: Start difference. First operand 393 states and 597 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:23,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:23,188 INFO L93 Difference]: Finished difference Result 407 states and 614 transitions. [2023-12-16 18:04:23,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:04:23,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 89 [2023-12-16 18:04:23,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:23,190 INFO L225 Difference]: With dead ends: 407 [2023-12-16 18:04:23,190 INFO L226 Difference]: Without dead ends: 405 [2023-12-16 18:04:23,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:04:23,191 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:23,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 463 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:23,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-12-16 18:04:23,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 401. [2023-12-16 18:04:23,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.51) internal successors, (604), 400 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:23,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 604 transitions. [2023-12-16 18:04:23,199 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 604 transitions. Word has length 89 [2023-12-16 18:04:23,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:23,199 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 604 transitions. [2023-12-16 18:04:23,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:23,200 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 604 transitions. [2023-12-16 18:04:23,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 18:04:23,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:23,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:23,206 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 [2023-12-16 18:04:23,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:23,404 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:23,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:23,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2123044207, now seen corresponding path program 1 times [2023-12-16 18:04:23,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:23,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48340304] [2023-12-16 18:04:23,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:23,405 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:23,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:23,406 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:23,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 18:04:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:23,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:23,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:23,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:23,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:23,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48340304] [2023-12-16 18:04:23,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48340304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:23,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:23,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:23,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515631326] [2023-12-16 18:04:23,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:23,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:23,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:23,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:23,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:23,588 INFO L87 Difference]: Start difference. First operand 401 states and 604 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:23,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:23,622 INFO L93 Difference]: Finished difference Result 749 states and 1164 transitions. [2023-12-16 18:04:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:23,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2023-12-16 18:04:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:23,624 INFO L225 Difference]: With dead ends: 749 [2023-12-16 18:04:23,624 INFO L226 Difference]: Without dead ends: 570 [2023-12-16 18:04:23,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:23,625 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 86 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:23,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 334 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:23,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-12-16 18:04:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 568. [2023-12-16 18:04:23,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 567 states have (on average 1.5343915343915344) internal successors, (870), 567 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:23,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 870 transitions. [2023-12-16 18:04:23,634 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 870 transitions. Word has length 90 [2023-12-16 18:04:23,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:23,634 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 870 transitions. [2023-12-16 18:04:23,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:23,634 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 870 transitions. [2023-12-16 18:04:23,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 18:04:23,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:23,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:23,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:23,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:23,838 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:23,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:23,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2097310609, now seen corresponding path program 1 times [2023-12-16 18:04:23,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:23,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001217270] [2023-12-16 18:04:23,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:23,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:23,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:23,840 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:23,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 18:04:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:23,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:23,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:24,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:24,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:24,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001217270] [2023-12-16 18:04:24,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001217270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:24,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:24,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:24,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610876458] [2023-12-16 18:04:24,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:24,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:24,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:24,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:24,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:24,039 INFO L87 Difference]: Start difference. First operand 568 states and 870 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:24,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:24,062 INFO L93 Difference]: Finished difference Result 1534 states and 2413 transitions. [2023-12-16 18:04:24,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:24,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2023-12-16 18:04:24,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:24,065 INFO L225 Difference]: With dead ends: 1534 [2023-12-16 18:04:24,065 INFO L226 Difference]: Without dead ends: 1033 [2023-12-16 18:04:24,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:24,066 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 84 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:24,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 340 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:24,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2023-12-16 18:04:24,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1031. [2023-12-16 18:04:24,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 1030 states have (on average 1.5533980582524272) internal successors, (1600), 1030 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:24,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1600 transitions. [2023-12-16 18:04:24,081 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1600 transitions. Word has length 90 [2023-12-16 18:04:24,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:24,081 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1600 transitions. [2023-12-16 18:04:24,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1600 transitions. [2023-12-16 18:04:24,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 18:04:24,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:24,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:24,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-16 18:04:24,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:24,287 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:24,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:24,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1341926545, now seen corresponding path program 1 times [2023-12-16 18:04:24,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:24,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208187353] [2023-12-16 18:04:24,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:24,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:24,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:24,290 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:24,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 18:04:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:24,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:24,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:24,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:24,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:24,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:24,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208187353] [2023-12-16 18:04:24,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208187353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:24,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:24,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:24,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824074562] [2023-12-16 18:04:24,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:24,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:24,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:24,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:24,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:24,454 INFO L87 Difference]: Start difference. First operand 1031 states and 1600 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:24,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:24,482 INFO L93 Difference]: Finished difference Result 2887 states and 4540 transitions. [2023-12-16 18:04:24,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:24,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2023-12-16 18:04:24,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:24,488 INFO L225 Difference]: With dead ends: 2887 [2023-12-16 18:04:24,488 INFO L226 Difference]: Without dead ends: 1923 [2023-12-16 18:04:24,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:24,489 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 82 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:24,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 342 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:24,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2023-12-16 18:04:24,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1921. [2023-12-16 18:04:24,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1920 states have (on average 1.55625) internal successors, (2988), 1920 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:24,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2988 transitions. [2023-12-16 18:04:24,519 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2988 transitions. Word has length 90 [2023-12-16 18:04:24,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:24,519 INFO L495 AbstractCegarLoop]: Abstraction has 1921 states and 2988 transitions. [2023-12-16 18:04:24,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:24,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2988 transitions. [2023-12-16 18:04:24,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 18:04:24,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:24,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:24,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:24,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:24,725 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:24,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:24,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1752313233, now seen corresponding path program 1 times [2023-12-16 18:04:24,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:24,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312922503] [2023-12-16 18:04:24,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:24,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:24,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:24,728 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:24,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 18:04:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:24,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:24,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:24,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:24,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:24,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:24,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312922503] [2023-12-16 18:04:24,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312922503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:24,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:24,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:24,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497817291] [2023-12-16 18:04:24,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:24,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:24,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:24,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:24,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:24,870 INFO L87 Difference]: Start difference. First operand 1921 states and 2988 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:24,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:24,916 INFO L93 Difference]: Finished difference Result 5485 states and 8578 transitions. [2023-12-16 18:04:24,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:24,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2023-12-16 18:04:24,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:24,926 INFO L225 Difference]: With dead ends: 5485 [2023-12-16 18:04:24,926 INFO L226 Difference]: Without dead ends: 3631 [2023-12-16 18:04:24,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:24,929 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 80 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:24,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 344 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:24,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3631 states. [2023-12-16 18:04:24,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3631 to 3629. [2023-12-16 18:04:24,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 3628 states have (on average 1.5490628445424477) internal successors, (5620), 3628 states have internal predecessors, (5620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 5620 transitions. [2023-12-16 18:04:24,988 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 5620 transitions. Word has length 90 [2023-12-16 18:04:24,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:24,988 INFO L495 AbstractCegarLoop]: Abstraction has 3629 states and 5620 transitions. [2023-12-16 18:04:24,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 5620 transitions. [2023-12-16 18:04:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 18:04:24,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:24,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:24,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:25,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:25,192 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:25,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:25,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1980952465, now seen corresponding path program 1 times [2023-12-16 18:04:25,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:25,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746903046] [2023-12-16 18:04:25,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:25,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:25,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:25,194 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:25,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 18:04:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:25,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:25,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:25,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:25,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:25,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:25,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746903046] [2023-12-16 18:04:25,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746903046] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:25,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:25,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:25,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240549508] [2023-12-16 18:04:25,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:25,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:25,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:25,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:25,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:25,363 INFO L87 Difference]: Start difference. First operand 3629 states and 5620 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:25,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:25,423 INFO L93 Difference]: Finished difference Result 10465 states and 16222 transitions. [2023-12-16 18:04:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:25,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2023-12-16 18:04:25,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:25,442 INFO L225 Difference]: With dead ends: 10465 [2023-12-16 18:04:25,443 INFO L226 Difference]: Without dead ends: 6903 [2023-12-16 18:04:25,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:25,448 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 76 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:25,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 340 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:25,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6903 states. [2023-12-16 18:04:25,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6903 to 6901. [2023-12-16 18:04:25,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6901 states, 6900 states have (on average 1.5356521739130435) internal successors, (10596), 6900 states have internal predecessors, (10596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:25,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6901 states to 6901 states and 10596 transitions. [2023-12-16 18:04:25,563 INFO L78 Accepts]: Start accepts. Automaton has 6901 states and 10596 transitions. Word has length 90 [2023-12-16 18:04:25,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:25,564 INFO L495 AbstractCegarLoop]: Abstraction has 6901 states and 10596 transitions. [2023-12-16 18:04:25,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:25,564 INFO L276 IsEmpty]: Start isEmpty. Operand 6901 states and 10596 transitions. [2023-12-16 18:04:25,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 18:04:25,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:25,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:25,567 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 [2023-12-16 18:04:25,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:25,767 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:25,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:25,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1688358767, now seen corresponding path program 1 times [2023-12-16 18:04:25,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:25,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475871159] [2023-12-16 18:04:25,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:25,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:25,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:25,769 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:25,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 18:04:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:25,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:25,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:25,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:25,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:25,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475871159] [2023-12-16 18:04:25,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475871159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:25,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:25,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:25,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633802234] [2023-12-16 18:04:25,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:25,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:25,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:25,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:25,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:25,910 INFO L87 Difference]: Start difference. First operand 6901 states and 10596 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:26,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:26,047 INFO L93 Difference]: Finished difference Result 19993 states and 30646 transitions. [2023-12-16 18:04:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:26,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2023-12-16 18:04:26,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:26,089 INFO L225 Difference]: With dead ends: 19993 [2023-12-16 18:04:26,089 INFO L226 Difference]: Without dead ends: 13159 [2023-12-16 18:04:26,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:26,098 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 74 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:26,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 342 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13159 states. [2023-12-16 18:04:26,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13159 to 13157. [2023-12-16 18:04:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13157 states, 13156 states have (on average 1.5180906050471268) internal successors, (19972), 13156 states have internal predecessors, (19972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:26,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13157 states to 13157 states and 19972 transitions. [2023-12-16 18:04:26,396 INFO L78 Accepts]: Start accepts. Automaton has 13157 states and 19972 transitions. Word has length 90 [2023-12-16 18:04:26,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:26,396 INFO L495 AbstractCegarLoop]: Abstraction has 13157 states and 19972 transitions. [2023-12-16 18:04:26,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:26,397 INFO L276 IsEmpty]: Start isEmpty. Operand 13157 states and 19972 transitions. [2023-12-16 18:04:26,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 18:04:26,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:26,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:26,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:26,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:26,601 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:26,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:26,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1717875089, now seen corresponding path program 1 times [2023-12-16 18:04:26,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:26,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274339818] [2023-12-16 18:04:26,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:26,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:26,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:26,603 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:26,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 18:04:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:26,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:26,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:26,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:26,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:26,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274339818] [2023-12-16 18:04:26,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274339818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:26,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:26,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:26,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080495204] [2023-12-16 18:04:26,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:26,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:26,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:26,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:26,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:26,754 INFO L87 Difference]: Start difference. First operand 13157 states and 19972 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:27,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:27,009 INFO L93 Difference]: Finished difference Result 38185 states and 57766 transitions. [2023-12-16 18:04:27,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:27,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2023-12-16 18:04:27,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:27,046 INFO L225 Difference]: With dead ends: 38185 [2023-12-16 18:04:27,046 INFO L226 Difference]: Without dead ends: 25095 [2023-12-16 18:04:27,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:27,056 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 72 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:27,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 344 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:27,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25095 states. [2023-12-16 18:04:27,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25095 to 25093. [2023-12-16 18:04:27,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25093 states, 25092 states have (on average 1.4973696795791487) internal successors, (37572), 25092 states have internal predecessors, (37572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:27,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25093 states to 25093 states and 37572 transitions. [2023-12-16 18:04:27,516 INFO L78 Accepts]: Start accepts. Automaton has 25093 states and 37572 transitions. Word has length 90 [2023-12-16 18:04:27,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:27,516 INFO L495 AbstractCegarLoop]: Abstraction has 25093 states and 37572 transitions. [2023-12-16 18:04:27,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:27,516 INFO L276 IsEmpty]: Start isEmpty. Operand 25093 states and 37572 transitions. [2023-12-16 18:04:27,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 18:04:27,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:27,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:27,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:27,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:27,720 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:27,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:27,720 INFO L85 PathProgramCache]: Analyzing trace with hash -2020896401, now seen corresponding path program 1 times [2023-12-16 18:04:27,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:27,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551114068] [2023-12-16 18:04:27,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:27,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:27,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:27,722 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:27,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 18:04:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:27,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:27,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:27,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:27,873 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:27,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:27,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551114068] [2023-12-16 18:04:27,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551114068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:27,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:27,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:27,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142621241] [2023-12-16 18:04:27,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:27,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:27,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:27,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:27,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:27,874 INFO L87 Difference]: Start difference. First operand 25093 states and 37572 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:28,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:28,437 INFO L93 Difference]: Finished difference Result 72841 states and 108550 transitions. [2023-12-16 18:04:28,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:28,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2023-12-16 18:04:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:28,527 INFO L225 Difference]: With dead ends: 72841 [2023-12-16 18:04:28,527 INFO L226 Difference]: Without dead ends: 47815 [2023-12-16 18:04:28,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:28,549 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 78 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:28,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 346 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:28,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47815 states. [2023-12-16 18:04:29,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47815 to 47813. [2023-12-16 18:04:29,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47813 states, 47812 states have (on average 1.4738559357483476) internal successors, (70468), 47812 states have internal predecessors, (70468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47813 states to 47813 states and 70468 transitions. [2023-12-16 18:04:29,457 INFO L78 Accepts]: Start accepts. Automaton has 47813 states and 70468 transitions. Word has length 90 [2023-12-16 18:04:29,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:29,457 INFO L495 AbstractCegarLoop]: Abstraction has 47813 states and 70468 transitions. [2023-12-16 18:04:29,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 47813 states and 70468 transitions. [2023-12-16 18:04:29,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 18:04:29,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:29,463 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:29,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:29,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:29,666 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:29,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:29,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1197016696, now seen corresponding path program 1 times [2023-12-16 18:04:29,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:29,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723439390] [2023-12-16 18:04:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:29,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:29,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:29,668 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:29,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 18:04:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:29,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:04:29,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:30,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:04:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:31,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:31,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723439390] [2023-12-16 18:04:31,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723439390] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:04:31,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:04:31,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 18:04:31,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246660653] [2023-12-16 18:04:31,007 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:04:31,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:04:31,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:31,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:04:31,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:04:31,008 INFO L87 Difference]: Start difference. First operand 47813 states and 70468 transitions. Second operand has 16 states, 16 states have (on average 13.0) internal successors, (208), 16 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:33,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:33,634 INFO L93 Difference]: Finished difference Result 152399 states and 223433 transitions. [2023-12-16 18:04:33,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 18:04:33,636 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.0) internal successors, (208), 16 states have internal predecessors, (208), 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 114 [2023-12-16 18:04:33,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:33,833 INFO L225 Difference]: With dead ends: 152399 [2023-12-16 18:04:33,833 INFO L226 Difference]: Without dead ends: 119373 [2023-12-16 18:04:33,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-16 18:04:33,887 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1776 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:33,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 1359 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 18:04:33,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119373 states. [2023-12-16 18:04:35,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119373 to 95557. [2023-12-16 18:04:36,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95557 states, 95556 states have (on average 1.4701745573276404) internal successors, (140484), 95556 states have internal predecessors, (140484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95557 states to 95557 states and 140484 transitions. [2023-12-16 18:04:36,319 INFO L78 Accepts]: Start accepts. Automaton has 95557 states and 140484 transitions. Word has length 114 [2023-12-16 18:04:36,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:36,320 INFO L495 AbstractCegarLoop]: Abstraction has 95557 states and 140484 transitions. [2023-12-16 18:04:36,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.0) internal successors, (208), 16 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:36,321 INFO L276 IsEmpty]: Start isEmpty. Operand 95557 states and 140484 transitions. [2023-12-16 18:04:36,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 18:04:36,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:36,331 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:36,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:36,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:36,535 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:36,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:36,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1122404216, now seen corresponding path program 1 times [2023-12-16 18:04:36,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:36,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007056672] [2023-12-16 18:04:36,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:36,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:36,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:36,537 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:36,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 18:04:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:36,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:36,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:36,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:36,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:36,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007056672] [2023-12-16 18:04:36,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007056672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:36,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:36,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:36,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72948774] [2023-12-16 18:04:36,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:36,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:36,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:36,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:36,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:36,672 INFO L87 Difference]: Start difference. First operand 95557 states and 140484 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:37,865 INFO L93 Difference]: Finished difference Result 161633 states and 238431 transitions. [2023-12-16 18:04:37,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:37,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114 [2023-12-16 18:04:37,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:37,953 INFO L225 Difference]: With dead ends: 161633 [2023-12-16 18:04:37,954 INFO L226 Difference]: Without dead ends: 66143 [2023-12-16 18:04:38,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:38,011 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 71 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:38,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 370 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:38,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66143 states. [2023-12-16 18:04:39,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66143 to 66136. [2023-12-16 18:04:39,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66136 states, 66135 states have (on average 1.4703107280562486) internal successors, (97239), 66135 states have internal predecessors, (97239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:39,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66136 states to 66136 states and 97239 transitions. [2023-12-16 18:04:39,266 INFO L78 Accepts]: Start accepts. Automaton has 66136 states and 97239 transitions. Word has length 114 [2023-12-16 18:04:39,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:39,266 INFO L495 AbstractCegarLoop]: Abstraction has 66136 states and 97239 transitions. [2023-12-16 18:04:39,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:39,266 INFO L276 IsEmpty]: Start isEmpty. Operand 66136 states and 97239 transitions. [2023-12-16 18:04:39,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 18:04:39,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:39,270 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:39,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:39,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:39,474 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:39,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:39,474 INFO L85 PathProgramCache]: Analyzing trace with hash -623271732, now seen corresponding path program 1 times [2023-12-16 18:04:39,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:39,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608872815] [2023-12-16 18:04:39,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:39,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:39,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:39,476 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:39,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 18:04:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:39,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:39,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:39,753 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:39,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:39,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:39,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608872815] [2023-12-16 18:04:39,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608872815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:39,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:39,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:39,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774183783] [2023-12-16 18:04:39,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:39,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:39,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:39,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:39,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:39,755 INFO L87 Difference]: Start difference. First operand 66136 states and 97239 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:40,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:40,436 INFO L93 Difference]: Finished difference Result 99164 states and 145817 transitions. [2023-12-16 18:04:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:40,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 116 [2023-12-16 18:04:40,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:40,476 INFO L225 Difference]: With dead ends: 99164 [2023-12-16 18:04:40,476 INFO L226 Difference]: Without dead ends: 33114 [2023-12-16 18:04:40,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:40,492 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 67 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:40,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 355 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:40,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33114 states. [2023-12-16 18:04:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33114 to 33112. [2023-12-16 18:04:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33112 states, 33111 states have (on average 1.4580954969647548) internal successors, (48279), 33111 states have internal predecessors, (48279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:41,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33112 states to 33112 states and 48279 transitions. [2023-12-16 18:04:41,121 INFO L78 Accepts]: Start accepts. Automaton has 33112 states and 48279 transitions. Word has length 116 [2023-12-16 18:04:41,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:41,121 INFO L495 AbstractCegarLoop]: Abstraction has 33112 states and 48279 transitions. [2023-12-16 18:04:41,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:41,121 INFO L276 IsEmpty]: Start isEmpty. Operand 33112 states and 48279 transitions. [2023-12-16 18:04:41,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 18:04:41,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:41,123 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:41,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:41,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:41,327 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:41,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:41,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1848262885, now seen corresponding path program 1 times [2023-12-16 18:04:41,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:41,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918053242] [2023-12-16 18:04:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:41,328 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:41,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:41,329 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:41,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 18:04:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:41,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:04:41,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:42,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:04:42,469 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:42,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:42,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918053242] [2023-12-16 18:04:42,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918053242] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:04:42,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:04:42,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 18:04:42,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817410905] [2023-12-16 18:04:42,470 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:04:42,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:04:42,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:42,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:04:42,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:04:42,471 INFO L87 Difference]: Start difference. First operand 33112 states and 48279 transitions. Second operand has 16 states, 16 states have (on average 13.5) internal successors, (216), 16 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:45,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:45,061 INFO L93 Difference]: Finished difference Result 127968 states and 185755 transitions. [2023-12-16 18:04:45,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 18:04:45,061 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.5) internal successors, (216), 16 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-16 18:04:45,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:45,171 INFO L225 Difference]: With dead ends: 127968 [2023-12-16 18:04:45,171 INFO L226 Difference]: Without dead ends: 94942 [2023-12-16 18:04:45,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-16 18:04:45,192 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1184 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:45,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1584 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 18:04:45,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94942 states. [2023-12-16 18:04:46,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94942 to 68440. [2023-12-16 18:04:46,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68440 states, 68439 states have (on average 1.437645202296936) internal successors, (98391), 68439 states have internal predecessors, (98391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:46,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68440 states to 68440 states and 98391 transitions. [2023-12-16 18:04:46,706 INFO L78 Accepts]: Start accepts. Automaton has 68440 states and 98391 transitions. Word has length 117 [2023-12-16 18:04:46,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:46,707 INFO L495 AbstractCegarLoop]: Abstraction has 68440 states and 98391 transitions. [2023-12-16 18:04:46,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.5) internal successors, (216), 16 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:46,707 INFO L276 IsEmpty]: Start isEmpty. Operand 68440 states and 98391 transitions. [2023-12-16 18:04:46,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 18:04:46,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:46,711 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:46,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:46,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:46,914 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:46,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:46,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1814131947, now seen corresponding path program 1 times [2023-12-16 18:04:46,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:46,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190136771] [2023-12-16 18:04:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:46,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:46,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:46,917 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:46,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 18:04:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:47,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:47,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:47,067 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:47,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:47,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:47,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190136771] [2023-12-16 18:04:47,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190136771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:47,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:47,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:47,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553812889] [2023-12-16 18:04:47,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:47,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:47,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:47,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:47,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:47,070 INFO L87 Difference]: Start difference. First operand 68440 states and 98391 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:47,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:47,782 INFO L93 Difference]: Finished difference Result 102620 states and 147545 transitions. [2023-12-16 18:04:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:47,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 119 [2023-12-16 18:04:47,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:47,825 INFO L225 Difference]: With dead ends: 102620 [2023-12-16 18:04:47,825 INFO L226 Difference]: Without dead ends: 34266 [2023-12-16 18:04:47,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:47,865 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 63 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:47,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 340 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:47,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34266 states. [2023-12-16 18:04:48,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34266 to 34264. [2023-12-16 18:04:48,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34264 states, 34263 states have (on average 1.425882146922336) internal successors, (48855), 34263 states have internal predecessors, (48855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:48,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34264 states to 34264 states and 48855 transitions. [2023-12-16 18:04:48,793 INFO L78 Accepts]: Start accepts. Automaton has 34264 states and 48855 transitions. Word has length 119 [2023-12-16 18:04:48,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:48,794 INFO L495 AbstractCegarLoop]: Abstraction has 34264 states and 48855 transitions. [2023-12-16 18:04:48,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:48,794 INFO L276 IsEmpty]: Start isEmpty. Operand 34264 states and 48855 transitions. [2023-12-16 18:04:48,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 18:04:48,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:48,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:48,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:48,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:48,999 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:48,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:49,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1452191196, now seen corresponding path program 1 times [2023-12-16 18:04:49,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:49,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497826772] [2023-12-16 18:04:49,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:49,000 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:49,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:49,001 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:49,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 18:04:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:49,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:04:49,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:49,879 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:49,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:04:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:50,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:50,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497826772] [2023-12-16 18:04:50,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497826772] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:04:50,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:04:50,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 18:04:50,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928580540] [2023-12-16 18:04:50,155 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:04:50,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:04:50,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:50,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:04:50,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:04:50,156 INFO L87 Difference]: Start difference. First operand 34264 states and 48855 transitions. Second operand has 16 states, 16 states have (on average 14.0) internal successors, (224), 16 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:52,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:52,564 INFO L93 Difference]: Finished difference Result 129120 states and 183643 transitions. [2023-12-16 18:04:52,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 18:04:52,564 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.0) internal successors, (224), 16 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-16 18:04:52,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:52,671 INFO L225 Difference]: With dead ends: 129120 [2023-12-16 18:04:52,671 INFO L226 Difference]: Without dead ends: 94942 [2023-12-16 18:04:52,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-16 18:04:52,692 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1019 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:52,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 1406 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 18:04:52,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94942 states. [2023-12-16 18:04:54,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94942 to 70744. [2023-12-16 18:04:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70744 states, 70743 states have (on average 1.4071074169882531) internal successors, (99543), 70743 states have internal predecessors, (99543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:54,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70744 states to 70744 states and 99543 transitions. [2023-12-16 18:04:54,370 INFO L78 Accepts]: Start accepts. Automaton has 70744 states and 99543 transitions. Word has length 120 [2023-12-16 18:04:54,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:54,370 INFO L495 AbstractCegarLoop]: Abstraction has 70744 states and 99543 transitions. [2023-12-16 18:04:54,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.0) internal successors, (224), 16 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:54,371 INFO L276 IsEmpty]: Start isEmpty. Operand 70744 states and 99543 transitions. [2023-12-16 18:04:54,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 18:04:54,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:54,374 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:54,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:54,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:54,574 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:54,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:54,575 INFO L85 PathProgramCache]: Analyzing trace with hash -196656712, now seen corresponding path program 1 times [2023-12-16 18:04:54,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:54,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532228595] [2023-12-16 18:04:54,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:54,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:54,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:54,576 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:54,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 18:04:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:54,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:04:54,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:54,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:04:54,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:54,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532228595] [2023-12-16 18:04:54,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532228595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:04:54,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:04:54,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:04:54,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003997779] [2023-12-16 18:04:54,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:04:54,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:04:54,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:54,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:04:54,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:54,731 INFO L87 Difference]: Start difference. First operand 70744 states and 99543 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:55,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:04:55,576 INFO L93 Difference]: Finished difference Result 106076 states and 149273 transitions. [2023-12-16 18:04:55,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:04:55,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 122 [2023-12-16 18:04:55,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:04:55,620 INFO L225 Difference]: With dead ends: 106076 [2023-12-16 18:04:55,620 INFO L226 Difference]: Without dead ends: 35418 [2023-12-16 18:04:55,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:04:55,828 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 59 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:04:55,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 325 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:04:55,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35418 states. [2023-12-16 18:04:56,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35418 to 35416. [2023-12-16 18:04:56,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35416 states, 35415 states have (on average 1.3957645065650148) internal successors, (49431), 35415 states have internal predecessors, (49431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:56,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35416 states to 35416 states and 49431 transitions. [2023-12-16 18:04:56,569 INFO L78 Accepts]: Start accepts. Automaton has 35416 states and 49431 transitions. Word has length 122 [2023-12-16 18:04:56,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:04:56,569 INFO L495 AbstractCegarLoop]: Abstraction has 35416 states and 49431 transitions. [2023-12-16 18:04:56,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:04:56,570 INFO L276 IsEmpty]: Start isEmpty. Operand 35416 states and 49431 transitions. [2023-12-16 18:04:56,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-16 18:04:56,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:04:56,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:04:56,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 18:04:56,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:56,773 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:04:56,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:04:56,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1163101777, now seen corresponding path program 1 times [2023-12-16 18:04:56,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:04:56,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948744615] [2023-12-16 18:04:56,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:04:56,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:04:56,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:04:56,775 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:04:56,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 18:04:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:04:56,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:04:56,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:04:57,548 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:57,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:04:57,854 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:04:57,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:04:57,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948744615] [2023-12-16 18:04:57,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948744615] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:04:57,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:04:57,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 18:04:57,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931747338] [2023-12-16 18:04:57,855 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:04:57,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:04:57,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:04:57,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:04:57,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:04:57,856 INFO L87 Difference]: Start difference. First operand 35416 states and 49431 transitions. Second operand has 16 states, 16 states have (on average 14.5) internal successors, (232), 16 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:00,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:05:00,660 INFO L93 Difference]: Finished difference Result 130272 states and 181531 transitions. [2023-12-16 18:05:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 18:05:00,660 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.5) internal successors, (232), 16 states have internal predecessors, (232), 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 123 [2023-12-16 18:05:00,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:05:00,787 INFO L225 Difference]: With dead ends: 130272 [2023-12-16 18:05:00,787 INFO L226 Difference]: Without dead ends: 94942 [2023-12-16 18:05:00,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-16 18:05:00,812 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 926 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 18:05:00,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 1584 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 18:05:00,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94942 states. [2023-12-16 18:05:02,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94942 to 73048. [2023-12-16 18:05:02,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73048 states, 73047 states have (on average 1.3784960367982257) internal successors, (100695), 73047 states have internal predecessors, (100695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:02,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73048 states to 73048 states and 100695 transitions. [2023-12-16 18:05:02,894 INFO L78 Accepts]: Start accepts. Automaton has 73048 states and 100695 transitions. Word has length 123 [2023-12-16 18:05:02,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:05:02,894 INFO L495 AbstractCegarLoop]: Abstraction has 73048 states and 100695 transitions. [2023-12-16 18:05:02,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.5) internal successors, (232), 16 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:02,894 INFO L276 IsEmpty]: Start isEmpty. Operand 73048 states and 100695 transitions. [2023-12-16 18:05:02,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 18:05:02,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:05:02,898 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:05:02,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 18:05:03,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:03,101 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:05:03,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:05:03,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1346703895, now seen corresponding path program 1 times [2023-12-16 18:05:03,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:05:03,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660742099] [2023-12-16 18:05:03,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:05:03,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:03,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:05:03,103 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:05:03,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 18:05:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:05:03,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:05:03,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:05:03,253 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:05:03,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:05:03,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:05:03,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660742099] [2023-12-16 18:05:03,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660742099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:05:03,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:05:03,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:05:03,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853528217] [2023-12-16 18:05:03,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:05:03,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:05:03,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:05:03,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:05:03,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:05:03,255 INFO L87 Difference]: Start difference. First operand 73048 states and 100695 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:04,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:05:04,134 INFO L93 Difference]: Finished difference Result 109532 states and 151001 transitions. [2023-12-16 18:05:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:05:04,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 125 [2023-12-16 18:05:04,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:05:04,179 INFO L225 Difference]: With dead ends: 109532 [2023-12-16 18:05:04,179 INFO L226 Difference]: Without dead ends: 36570 [2023-12-16 18:05:04,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:05:04,200 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 55 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:05:04,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 310 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:05:04,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36570 states. [2023-12-16 18:05:05,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36570 to 36568. [2023-12-16 18:05:05,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36568 states, 36567 states have (on average 1.367544507342686) internal successors, (50007), 36567 states have internal predecessors, (50007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:05,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36568 states to 36568 states and 50007 transitions. [2023-12-16 18:05:05,191 INFO L78 Accepts]: Start accepts. Automaton has 36568 states and 50007 transitions. Word has length 125 [2023-12-16 18:05:05,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:05:05,192 INFO L495 AbstractCegarLoop]: Abstraction has 36568 states and 50007 transitions. [2023-12-16 18:05:05,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:05,192 INFO L276 IsEmpty]: Start isEmpty. Operand 36568 states and 50007 transitions. [2023-12-16 18:05:05,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 18:05:05,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:05:05,194 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:05:05,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 18:05:05,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:05,394 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:05:05,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:05:05,395 INFO L85 PathProgramCache]: Analyzing trace with hash -832146384, now seen corresponding path program 1 times [2023-12-16 18:05:05,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:05:05,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524686513] [2023-12-16 18:05:05,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:05:05,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:05,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:05:05,396 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:05:05,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 18:05:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:05:05,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:05:05,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:05:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:05:06,178 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:05:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:05:06,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:05:06,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524686513] [2023-12-16 18:05:06,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524686513] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:05:06,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:05:06,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 18:05:06,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646470125] [2023-12-16 18:05:06,502 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:05:06,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:05:06,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:05:06,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:05:06,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:05:06,503 INFO L87 Difference]: Start difference. First operand 36568 states and 50007 transitions. Second operand has 16 states, 16 states have (on average 15.0) internal successors, (240), 16 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:09,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:05:09,792 INFO L93 Difference]: Finished difference Result 131424 states and 179419 transitions. [2023-12-16 18:05:09,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 18:05:09,792 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.0) internal successors, (240), 16 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2023-12-16 18:05:09,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:05:09,915 INFO L225 Difference]: With dead ends: 131424 [2023-12-16 18:05:09,915 INFO L226 Difference]: Without dead ends: 94942 [2023-12-16 18:05:09,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-16 18:05:09,937 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1080 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:05:09,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 1560 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 18:05:09,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94942 states. [2023-12-16 18:05:11,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94942 to 75352. [2023-12-16 18:05:11,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75352 states, 75351 states have (on average 1.3516343512362146) internal successors, (101847), 75351 states have internal predecessors, (101847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:12,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75352 states to 75352 states and 101847 transitions. [2023-12-16 18:05:12,089 INFO L78 Accepts]: Start accepts. Automaton has 75352 states and 101847 transitions. Word has length 126 [2023-12-16 18:05:12,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:05:12,089 INFO L495 AbstractCegarLoop]: Abstraction has 75352 states and 101847 transitions. [2023-12-16 18:05:12,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.0) internal successors, (240), 16 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:12,089 INFO L276 IsEmpty]: Start isEmpty. Operand 75352 states and 101847 transitions. [2023-12-16 18:05:12,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 18:05:12,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:05:12,092 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:05:12,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 18:05:12,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:12,293 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:05:12,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:05:12,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1393491804, now seen corresponding path program 1 times [2023-12-16 18:05:12,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:05:12,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542663418] [2023-12-16 18:05:12,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:05:12,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:12,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:05:12,295 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:05:12,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 18:05:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:05:12,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:05:12,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:05:12,448 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:05:12,448 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:05:12,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:05:12,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542663418] [2023-12-16 18:05:12,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542663418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:05:12,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:05:12,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:05:12,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320964358] [2023-12-16 18:05:12,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:05:12,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:05:12,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:05:12,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:05:12,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:05:12,451 INFO L87 Difference]: Start difference. First operand 75352 states and 101847 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:13,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:05:13,430 INFO L93 Difference]: Finished difference Result 112988 states and 152729 transitions. [2023-12-16 18:05:13,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:05:13,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2023-12-16 18:05:13,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:05:13,489 INFO L225 Difference]: With dead ends: 112988 [2023-12-16 18:05:13,489 INFO L226 Difference]: Without dead ends: 37722 [2023-12-16 18:05:13,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:05:13,533 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 51 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:05:13,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 295 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:05:13,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37722 states. [2023-12-16 18:05:14,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37722 to 37720. [2023-12-16 18:05:14,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37720 states, 37719 states have (on average 1.3410482780561521) internal successors, (50583), 37719 states have internal predecessors, (50583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:14,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37720 states to 37720 states and 50583 transitions. [2023-12-16 18:05:14,554 INFO L78 Accepts]: Start accepts. Automaton has 37720 states and 50583 transitions. Word has length 128 [2023-12-16 18:05:14,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:05:14,554 INFO L495 AbstractCegarLoop]: Abstraction has 37720 states and 50583 transitions. [2023-12-16 18:05:14,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:14,554 INFO L276 IsEmpty]: Start isEmpty. Operand 37720 states and 50583 transitions. [2023-12-16 18:05:14,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 18:05:14,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:05:14,557 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:05:14,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 18:05:14,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:14,757 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:05:14,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:05:14,758 INFO L85 PathProgramCache]: Analyzing trace with hash 161076803, now seen corresponding path program 1 times [2023-12-16 18:05:14,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:05:14,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12024409] [2023-12-16 18:05:14,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:05:14,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:14,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:05:14,759 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:05:14,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 18:05:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:05:14,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:05:14,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:05:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:05:15,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:05:16,035 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:05:16,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:05:16,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12024409] [2023-12-16 18:05:16,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12024409] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:05:16,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:05:16,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 18:05:16,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527282251] [2023-12-16 18:05:16,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:05:16,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 18:05:16,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:05:16,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 18:05:16,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 18:05:16,037 INFO L87 Difference]: Start difference. First operand 37720 states and 50583 transitions. Second operand has 16 states, 16 states have (on average 15.5) internal successors, (248), 16 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:18,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:05:18,981 INFO L93 Difference]: Finished difference Result 132576 states and 177307 transitions. [2023-12-16 18:05:18,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 18:05:18,982 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.5) internal successors, (248), 16 states have internal predecessors, (248), 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 129 [2023-12-16 18:05:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:05:19,110 INFO L225 Difference]: With dead ends: 132576 [2023-12-16 18:05:19,110 INFO L226 Difference]: Without dead ends: 94942 [2023-12-16 18:05:19,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-16 18:05:19,293 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 919 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 18:05:19,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 1201 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 18:05:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94942 states. [2023-12-16 18:05:21,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94942 to 77656. [2023-12-16 18:05:21,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77656 states, 77655 states have (on average 1.3263666215955185) internal successors, (102999), 77655 states have internal predecessors, (102999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:21,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77656 states to 77656 states and 102999 transitions. [2023-12-16 18:05:21,736 INFO L78 Accepts]: Start accepts. Automaton has 77656 states and 102999 transitions. Word has length 129 [2023-12-16 18:05:21,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:05:21,736 INFO L495 AbstractCegarLoop]: Abstraction has 77656 states and 102999 transitions. [2023-12-16 18:05:21,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.5) internal successors, (248), 16 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:21,736 INFO L276 IsEmpty]: Start isEmpty. Operand 77656 states and 102999 transitions. [2023-12-16 18:05:21,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 18:05:21,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:05:21,740 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:05:21,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 18:05:21,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:21,940 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:05:21,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:05:21,941 INFO L85 PathProgramCache]: Analyzing trace with hash 823811395, now seen corresponding path program 1 times [2023-12-16 18:05:21,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:05:21,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246628463] [2023-12-16 18:05:21,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:05:21,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:21,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:05:21,942 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:05:21,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 18:05:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:05:22,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:05:22,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:05:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:05:22,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:05:22,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:05:22,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246628463] [2023-12-16 18:05:22,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246628463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:05:22,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:05:22,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:05:22,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571278792] [2023-12-16 18:05:22,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:05:22,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:05:22,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:05:22,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:05:22,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:05:22,099 INFO L87 Difference]: Start difference. First operand 77656 states and 102999 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:05:23,167 INFO L93 Difference]: Finished difference Result 116444 states and 154457 transitions. [2023-12-16 18:05:23,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:05:23,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 131 [2023-12-16 18:05:23,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:05:23,216 INFO L225 Difference]: With dead ends: 116444 [2023-12-16 18:05:23,216 INFO L226 Difference]: Without dead ends: 38874 [2023-12-16 18:05:23,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:05:23,245 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 47 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:05:23,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 280 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:05:23,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38874 states. Received shutdown request... [2023-12-16 18:05:23,470 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:05:23,481 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:05:24,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38874 to 38872. [2023-12-16 18:05:24,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38872 states, 38871 states have (on average 1.3161225592343906) internal successors, (51159), 38871 states have internal predecessors, (51159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:05:24,314 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 18:05:24,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 18:05:24,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 18:05:24,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:05:24,515 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 18:05:24,519 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:05:24,521 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:05:24,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:05:24 BoogieIcfgContainer [2023-12-16 18:05:24,522 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:05:24,522 INFO L158 Benchmark]: Toolchain (without parser) took 66393.34ms. Allocated memory was 216.0MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 177.5MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2023-12-16 18:05:24,522 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 216.0MB. Free memory is still 168.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:05:24,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.76ms. Allocated memory is still 216.0MB. Free memory was 177.5MB in the beginning and 157.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-16 18:05:24,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.78ms. Allocated memory is still 216.0MB. Free memory was 157.6MB in the beginning and 154.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 18:05:24,523 INFO L158 Benchmark]: Boogie Preprocessor took 72.70ms. Allocated memory is still 216.0MB. Free memory was 154.5MB in the beginning and 150.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 18:05:24,523 INFO L158 Benchmark]: RCFGBuilder took 741.60ms. Allocated memory was 216.0MB in the beginning and 289.4MB in the end (delta: 73.4MB). Free memory was 150.3MB in the beginning and 241.5MB in the end (delta: -91.2MB). Peak memory consumption was 33.0MB. Max. memory is 8.0GB. [2023-12-16 18:05:24,523 INFO L158 Benchmark]: TraceAbstraction took 65149.74ms. Allocated memory was 289.4MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 240.4MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. [2023-12-16 18:05:24,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 216.0MB. Free memory is still 168.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 383.76ms. Allocated memory is still 216.0MB. Free memory was 177.5MB in the beginning and 157.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.78ms. Allocated memory is still 216.0MB. Free memory was 157.6MB in the beginning and 154.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.70ms. Allocated memory is still 216.0MB. Free memory was 154.5MB in the beginning and 150.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 741.60ms. Allocated memory was 216.0MB in the beginning and 289.4MB in the end (delta: 73.4MB). Free memory was 150.3MB in the beginning and 241.5MB in the end (delta: -91.2MB). Peak memory consumption was 33.0MB. Max. memory is 8.0GB. * TraceAbstraction took 65149.74ms. Allocated memory was 289.4MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 240.4MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 3.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 672]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 672). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 126 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.1s, OverallIterations: 26, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 27.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8814 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8814 mSDsluCounter, 16754 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11352 mSDsCounter, 136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7255 IncrementalHoareTripleChecker+Invalid, 7391 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 136 mSolverCounterUnsat, 5402 mSDtfsCounter, 7255 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3392 GetRequests, 3204 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95557occurred in iteration=14, InterpolantAutomatonStates: 174, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 20.9s AutomataMinimizationTime, 26 MinimizatonAttempts, 133683 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 2619 NumberOfCodeBlocks, 2619 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3316 ConstructedInterpolants, 541 QuantifiedInterpolants, 23976 SizeOfPredicates, 56 NumberOfNonLiveVariables, 5998 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 32 InterpolantComputations, 20 PerfectInterpolantSequences, 308/392 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown