/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 00:13:02,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 00:13:03,004 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 00:13:03,008 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 00:13:03,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 00:13:03,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 00:13:03,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 00:13:03,038 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 00:13:03,039 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 00:13:03,043 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 00:13:03,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 00:13:03,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 00:13:03,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 00:13:03,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 00:13:03,047 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 00:13:03,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 00:13:03,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 00:13:03,048 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 00:13:03,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 00:13:03,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 00:13:03,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 00:13:03,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 00:13:03,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 00:13:03,050 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 00:13:03,050 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 00:13:03,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 00:13:03,050 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 00:13:03,050 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 00:13:03,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 00:13:03,051 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 00:13:03,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 00:13:03,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 00:13:03,052 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 00:13:03,052 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 00:13:03,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:13:03,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 00:13:03,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 00:13:03,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 00:13:03,053 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 00:13:03,053 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 00:13:03,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 00:13:03,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 00:13:03,054 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 00:13:03,054 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 00:13:03,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 00:13:03,055 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 00:13:03,055 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 00:13:03,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 00:13:03,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 00:13:03,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 00:13:03,321 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 00:13:03,325 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 00:13:03,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label01.c [2023-12-22 00:13:04,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 00:13:05,175 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 00:13:05,176 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label01.c [2023-12-22 00:13:05,211 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a50f0d0a3/0d09a56031924ef0b180f94f44dd9fe4/FLAG0c91fbc23 [2023-12-22 00:13:05,228 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a50f0d0a3/0d09a56031924ef0b180f94f44dd9fe4 [2023-12-22 00:13:05,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 00:13:05,232 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 00:13:05,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 00:13:05,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 00:13:05,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 00:13:05,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:13:05" (1/1) ... [2023-12-22 00:13:05,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d40754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:05, skipping insertion in model container [2023-12-22 00:13:05,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:13:05" (1/1) ... [2023-12-22 00:13:05,354 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 00:13:05,832 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label01.c[8616,8629] [2023-12-22 00:13:05,893 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label01.c[14171,14184] [2023-12-22 00:13:06,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:13:06,724 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 00:13:06,783 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label01.c[8616,8629] [2023-12-22 00:13:06,790 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label01.c[14171,14184] [2023-12-22 00:13:07,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:13:07,136 INFO L206 MainTranslator]: Completed translation [2023-12-22 00:13:07,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07 WrapperNode [2023-12-22 00:13:07,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 00:13:07,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 00:13:07,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 00:13:07,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 00:13:07,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,352 INFO L138 Inliner]: procedures = 35, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 5013 [2023-12-22 00:13:07,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 00:13:07,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 00:13:07,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 00:13:07,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 00:13:07,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,401 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,457 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 00:13:07,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 00:13:07,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 00:13:07,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 00:13:07,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 00:13:07,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (1/1) ... [2023-12-22 00:13:07,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:13:07,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 00:13:07,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 00:13:07,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 00:13:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 00:13:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 00:13:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 00:13:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 00:13:07,773 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 00:13:07,774 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 00:13:48,035 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 00:13:48,086 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 00:13:48,086 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 00:13:48,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:13:48 BoogieIcfgContainer [2023-12-22 00:13:48,087 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 00:13:48,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 00:13:48,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 00:13:48,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 00:13:48,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:13:05" (1/3) ... [2023-12-22 00:13:48,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7337c4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:13:48, skipping insertion in model container [2023-12-22 00:13:48,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:13:07" (2/3) ... [2023-12-22 00:13:48,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7337c4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:13:48, skipping insertion in model container [2023-12-22 00:13:48,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:13:48" (3/3) ... [2023-12-22 00:13:48,095 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label01.c [2023-12-22 00:13:48,110 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 00:13:48,110 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 00:13:48,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 00:13:48,196 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;@59236c4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 00:13:48,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 00:13:48,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 820 states, 817 states have (on average 1.97796817625459) internal successors, (1616), 819 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:48,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-22 00:13:48,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:48,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:48,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:48,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:48,227 INFO L85 PathProgramCache]: Analyzing trace with hash 439922616, now seen corresponding path program 1 times [2023-12-22 00:13:48,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:48,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133516184] [2023-12-22 00:13:48,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:48,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:48,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:48,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:48,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 00:13:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:48,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 00:13:48,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:48,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:48,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:48,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:48,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133516184] [2023-12-22 00:13:48,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133516184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:48,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:48,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:13:48,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050854568] [2023-12-22 00:13:48,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:48,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 00:13:48,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:48,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 00:13:48,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 00:13:48,390 INFO L87 Difference]: Start difference. First operand has 820 states, 817 states have (on average 1.97796817625459) internal successors, (1616), 819 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:48,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:48,533 INFO L93 Difference]: Finished difference Result 1613 states and 3180 transitions. [2023-12-22 00:13:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 00:13:48,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-12-22 00:13:48,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:48,550 INFO L225 Difference]: With dead ends: 1613 [2023-12-22 00:13:48,551 INFO L226 Difference]: Without dead ends: 816 [2023-12-22 00:13:48,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 00:13:48,558 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:48,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1545 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:48,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2023-12-22 00:13:48,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2023-12-22 00:13:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 814 states have (on average 1.898034398034398) internal successors, (1545), 815 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:48,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1545 transitions. [2023-12-22 00:13:48,622 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1545 transitions. Word has length 19 [2023-12-22 00:13:48,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:48,622 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1545 transitions. [2023-12-22 00:13:48,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:48,622 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1545 transitions. [2023-12-22 00:13:48,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-22 00:13:48,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:48,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:48,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:48,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:48,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:48,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:48,830 INFO L85 PathProgramCache]: Analyzing trace with hash -839941062, now seen corresponding path program 1 times [2023-12-22 00:13:48,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:48,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902646715] [2023-12-22 00:13:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:48,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:48,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:48,832 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:48,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 00:13:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:48,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 00:13:48,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:48,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:48,958 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:48,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:48,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902646715] [2023-12-22 00:13:48,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902646715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:48,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:48,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:13:48,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641650371] [2023-12-22 00:13:48,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:48,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:13:48,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:48,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:13:48,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:13:48,965 INFO L87 Difference]: Start difference. First operand 816 states and 1545 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:49,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:49,049 INFO L93 Difference]: Finished difference Result 889 states and 1660 transitions. [2023-12-22 00:13:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:13:49,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-12-22 00:13:49,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:49,055 INFO L225 Difference]: With dead ends: 889 [2023-12-22 00:13:49,055 INFO L226 Difference]: Without dead ends: 851 [2023-12-22 00:13:49,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:13:49,057 INFO L413 NwaCegarLoop]: 1540 mSDtfsCounter, 55 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4592 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:49,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4592 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:49,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2023-12-22 00:13:49,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 816. [2023-12-22 00:13:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 814 states have (on average 1.8697788697788698) internal successors, (1522), 815 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:49,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1522 transitions. [2023-12-22 00:13:49,155 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1522 transitions. Word has length 19 [2023-12-22 00:13:49,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:49,155 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1522 transitions. [2023-12-22 00:13:49,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:49,156 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1522 transitions. [2023-12-22 00:13:49,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-22 00:13:49,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:49,157 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] [2023-12-22 00:13:49,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:49,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:49,363 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:49,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:49,364 INFO L85 PathProgramCache]: Analyzing trace with hash -562664075, now seen corresponding path program 1 times [2023-12-22 00:13:49,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:49,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072925026] [2023-12-22 00:13:49,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:49,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:49,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:49,366 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:49,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 00:13:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:49,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:13:49,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:49,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:49,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:49,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072925026] [2023-12-22 00:13:49,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072925026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:49,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:49,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:13:49,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179151406] [2023-12-22 00:13:49,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:49,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:13:49,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:49,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:13:49,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:13:49,836 INFO L87 Difference]: Start difference. First operand 816 states and 1522 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:50,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:50,008 INFO L93 Difference]: Finished difference Result 991 states and 1802 transitions. [2023-12-22 00:13:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:13:50,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-22 00:13:50,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:50,014 INFO L225 Difference]: With dead ends: 991 [2023-12-22 00:13:50,014 INFO L226 Difference]: Without dead ends: 956 [2023-12-22 00:13:50,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:13:50,017 INFO L413 NwaCegarLoop]: 1516 mSDtfsCounter, 3167 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3167 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:50,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3167 Valid, 1771 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:13:50,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2023-12-22 00:13:50,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 882. [2023-12-22 00:13:50,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8511363636363636) internal successors, (1629), 881 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:50,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1629 transitions. [2023-12-22 00:13:50,037 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1629 transitions. Word has length 41 [2023-12-22 00:13:50,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:50,038 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1629 transitions. [2023-12-22 00:13:50,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:50,039 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1629 transitions. [2023-12-22 00:13:50,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-22 00:13:50,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:50,044 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] [2023-12-22 00:13:50,064 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 [2023-12-22 00:13:50,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:50,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:50,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:50,249 INFO L85 PathProgramCache]: Analyzing trace with hash 323015045, now seen corresponding path program 1 times [2023-12-22 00:13:50,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:50,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71614269] [2023-12-22 00:13:50,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:50,250 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:50,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:50,251 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:50,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 00:13:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:50,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:50,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:50,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:50,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:50,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:50,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71614269] [2023-12-22 00:13:50,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71614269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:50,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:50,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:50,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123711085] [2023-12-22 00:13:50,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:50,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:50,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:50,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:50,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:50,434 INFO L87 Difference]: Start difference. First operand 882 states and 1629 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:50,490 INFO L93 Difference]: Finished difference Result 1068 states and 1927 transitions. [2023-12-22 00:13:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:50,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2023-12-22 00:13:50,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:50,505 INFO L225 Difference]: With dead ends: 1068 [2023-12-22 00:13:50,505 INFO L226 Difference]: Without dead ends: 967 [2023-12-22 00:13:50,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:50,506 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 1472 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:50,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 1568 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:50,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-12-22 00:13:50,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 965. [2023-12-22 00:13:50,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 963 states have (on average 1.8255451713395638) internal successors, (1758), 964 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:50,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1758 transitions. [2023-12-22 00:13:50,543 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1758 transitions. Word has length 43 [2023-12-22 00:13:50,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:50,544 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1758 transitions. [2023-12-22 00:13:50,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:50,544 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1758 transitions. [2023-12-22 00:13:50,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-22 00:13:50,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:50,545 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] [2023-12-22 00:13:50,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:50,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:50,761 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:50,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:50,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1361670552, now seen corresponding path program 1 times [2023-12-22 00:13:50,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:50,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210804269] [2023-12-22 00:13:50,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:50,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:50,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:50,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:50,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 00:13:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:50,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:13:50,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:50,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:50,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:50,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:50,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210804269] [2023-12-22 00:13:50,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210804269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:50,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:50,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:13:50,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277722766] [2023-12-22 00:13:50,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:50,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:13:50,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:50,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:13:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:13:50,852 INFO L87 Difference]: Start difference. First operand 965 states and 1758 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:50,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:50,916 INFO L93 Difference]: Finished difference Result 979 states and 1775 transitions. [2023-12-22 00:13:50,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:13:50,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2023-12-22 00:13:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:50,921 INFO L225 Difference]: With dead ends: 979 [2023-12-22 00:13:50,921 INFO L226 Difference]: Without dead ends: 977 [2023-12-22 00:13:50,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:13:50,922 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 1 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4546 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 [2023-12-22 00:13:50,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4546 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:50,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2023-12-22 00:13:50,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 973. [2023-12-22 00:13:50,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 971 states have (on average 1.8177136972193615) internal successors, (1765), 972 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:50,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1765 transitions. [2023-12-22 00:13:50,943 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1765 transitions. Word has length 44 [2023-12-22 00:13:50,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:50,943 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1765 transitions. [2023-12-22 00:13:50,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1765 transitions. [2023-12-22 00:13:50,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:13:50,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:50,944 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] [2023-12-22 00:13:50,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:51,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:51,148 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:51,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:51,149 INFO L85 PathProgramCache]: Analyzing trace with hash -2079230275, now seen corresponding path program 1 times [2023-12-22 00:13:51,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:51,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925325530] [2023-12-22 00:13:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:51,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:51,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:51,151 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:51,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 00:13:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:51,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:51,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:51,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:51,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:51,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925325530] [2023-12-22 00:13:51,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925325530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:51,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:51,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:51,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111067792] [2023-12-22 00:13:51,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:51,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:51,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:51,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:51,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:51,325 INFO L87 Difference]: Start difference. First operand 973 states and 1765 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:51,362 INFO L93 Difference]: Finished difference Result 1177 states and 2085 transitions. [2023-12-22 00:13:51,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:51,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:13:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:51,367 INFO L225 Difference]: With dead ends: 1177 [2023-12-22 00:13:51,368 INFO L226 Difference]: Without dead ends: 1070 [2023-12-22 00:13:51,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:51,370 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 1484 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:51,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1615 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:51,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2023-12-22 00:13:51,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2023-12-22 00:13:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1066 states have (on average 1.7926829268292683) internal successors, (1911), 1067 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:51,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1911 transitions. [2023-12-22 00:13:51,393 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1911 transitions. Word has length 45 [2023-12-22 00:13:51,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:51,393 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1911 transitions. [2023-12-22 00:13:51,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1911 transitions. [2023-12-22 00:13:51,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:13:51,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:51,396 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] [2023-12-22 00:13:51,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:51,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:51,600 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:51,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:51,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1630024893, now seen corresponding path program 1 times [2023-12-22 00:13:51,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:51,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743384560] [2023-12-22 00:13:51,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:51,602 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 [2023-12-22 00:13:51,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:51,617 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:51,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 00:13:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:51,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:51,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:51,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:51,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:51,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743384560] [2023-12-22 00:13:51,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743384560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:51,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:51,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:51,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399696630] [2023-12-22 00:13:51,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:51,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:51,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:51,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:51,822 INFO L87 Difference]: Start difference. First operand 1068 states and 1911 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:51,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:51,860 INFO L93 Difference]: Finished difference Result 1602 states and 2734 transitions. [2023-12-22 00:13:51,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:51,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:13:51,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:51,865 INFO L225 Difference]: With dead ends: 1602 [2023-12-22 00:13:51,866 INFO L226 Difference]: Without dead ends: 1317 [2023-12-22 00:13:51,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:51,867 INFO L413 NwaCegarLoop]: 1551 mSDtfsCounter, 1480 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:51,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1615 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:51,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2023-12-22 00:13:51,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1315. [2023-12-22 00:13:51,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1313 states have (on average 1.7372429550647372) internal successors, (2281), 1314 states have internal predecessors, (2281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:51,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 2281 transitions. [2023-12-22 00:13:51,897 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 2281 transitions. Word has length 45 [2023-12-22 00:13:51,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:51,897 INFO L495 AbstractCegarLoop]: Abstraction has 1315 states and 2281 transitions. [2023-12-22 00:13:51,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 2281 transitions. [2023-12-22 00:13:51,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:13:51,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:51,898 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] [2023-12-22 00:13:51,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:52,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:52,103 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:52,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:52,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1776208963, now seen corresponding path program 1 times [2023-12-22 00:13:52,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:52,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549937701] [2023-12-22 00:13:52,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:52,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:52,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:52,107 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:52,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 00:13:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:52,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:52,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:52,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:52,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:52,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549937701] [2023-12-22 00:13:52,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549937701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:52,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:52,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:52,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127087509] [2023-12-22 00:13:52,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:52,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:52,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:52,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:52,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:52,247 INFO L87 Difference]: Start difference. First operand 1315 states and 2281 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:52,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:52,287 INFO L93 Difference]: Finished difference Result 2307 states and 3781 transitions. [2023-12-22 00:13:52,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:52,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:13:52,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:52,293 INFO L225 Difference]: With dead ends: 2307 [2023-12-22 00:13:52,294 INFO L226 Difference]: Without dead ends: 1775 [2023-12-22 00:13:52,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:52,296 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 1478 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:52,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1617 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:52,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2023-12-22 00:13:52,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1773. [2023-12-22 00:13:52,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1771 states have (on average 1.6651609260304912) internal successors, (2949), 1772 states have internal predecessors, (2949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2949 transitions. [2023-12-22 00:13:52,330 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2949 transitions. Word has length 45 [2023-12-22 00:13:52,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:52,331 INFO L495 AbstractCegarLoop]: Abstraction has 1773 states and 2949 transitions. [2023-12-22 00:13:52,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2949 transitions. [2023-12-22 00:13:52,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:13:52,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:52,331 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] [2023-12-22 00:13:52,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-22 00:13:52,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:52,536 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:52,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:52,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2039286339, now seen corresponding path program 1 times [2023-12-22 00:13:52,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:52,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708847782] [2023-12-22 00:13:52,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:52,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:52,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:52,539 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:52,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 00:13:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:52,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:52,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:52,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:52,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:52,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708847782] [2023-12-22 00:13:52,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708847782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:52,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:52,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:52,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852415426] [2023-12-22 00:13:52,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:52,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:52,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:52,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:52,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:52,666 INFO L87 Difference]: Start difference. First operand 1773 states and 2949 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:52,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:52,715 INFO L93 Difference]: Finished difference Result 3609 states and 5659 transitions. [2023-12-22 00:13:52,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:52,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:13:52,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:52,723 INFO L225 Difference]: With dead ends: 3609 [2023-12-22 00:13:52,724 INFO L226 Difference]: Without dead ends: 2619 [2023-12-22 00:13:52,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:52,726 INFO L413 NwaCegarLoop]: 1561 mSDtfsCounter, 1482 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:52,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1621 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:52,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2023-12-22 00:13:52,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2617. [2023-12-22 00:13:52,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2615 states have (on average 1.5835564053537285) internal successors, (4141), 2616 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:52,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 4141 transitions. [2023-12-22 00:13:52,883 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 4141 transitions. Word has length 45 [2023-12-22 00:13:52,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:52,883 INFO L495 AbstractCegarLoop]: Abstraction has 2617 states and 4141 transitions. [2023-12-22 00:13:52,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:52,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 4141 transitions. [2023-12-22 00:13:52,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-22 00:13:52,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:52,884 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] [2023-12-22 00:13:52,899 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 [2023-12-22 00:13:53,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:53,099 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:53,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:53,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2145314009, now seen corresponding path program 1 times [2023-12-22 00:13:53,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:53,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552339943] [2023-12-22 00:13:53,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:53,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:53,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:53,101 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:53,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 00:13:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:53,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:53,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:53,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:53,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:53,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552339943] [2023-12-22 00:13:53,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552339943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:53,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:53,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:13:53,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081020727] [2023-12-22 00:13:53,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:53,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:53,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:53,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:53,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:53,257 INFO L87 Difference]: Start difference. First operand 2617 states and 4141 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:33,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:33,721 INFO L93 Difference]: Finished difference Result 4121 states and 7014 transitions. [2023-12-22 00:14:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:14:33,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-12-22 00:14:33,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:33,731 INFO L225 Difference]: With dead ends: 4121 [2023-12-22 00:14:33,732 INFO L226 Difference]: Without dead ends: 3368 [2023-12-22 00:14:33,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:33,736 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 854 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:33,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 508 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 40.3s Time] [2023-12-22 00:14:33,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2023-12-22 00:14:33,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 3368. [2023-12-22 00:14:33,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3368 states, 3366 states have (on average 1.5353535353535352) internal successors, (5168), 3367 states have internal predecessors, (5168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:33,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3368 states to 3368 states and 5168 transitions. [2023-12-22 00:14:33,809 INFO L78 Accepts]: Start accepts. Automaton has 3368 states and 5168 transitions. Word has length 47 [2023-12-22 00:14:33,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:33,809 INFO L495 AbstractCegarLoop]: Abstraction has 3368 states and 5168 transitions. [2023-12-22 00:14:33,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:33,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3368 states and 5168 transitions. [2023-12-22 00:14:33,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 00:14:33,810 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:33,810 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:14:33,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:34,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:34,014 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:34,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:34,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1254660810, now seen corresponding path program 1 times [2023-12-22 00:14:34,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:34,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512664836] [2023-12-22 00:14:34,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:34,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:34,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:34,017 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:34,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 00:14:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:34,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:14:34,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:35,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:35,394 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:35,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:35,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512664836] [2023-12-22 00:14:35,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512664836] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:35,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:35,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:14:35,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329056526] [2023-12-22 00:14:35,395 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:35,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:14:35,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:35,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:14:35,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:14:35,397 INFO L87 Difference]: Start difference. First operand 3368 states and 5168 transitions. Second operand has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:37,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:37,304 INFO L93 Difference]: Finished difference Result 7418 states and 10989 transitions. [2023-12-22 00:14:37,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:14:37,305 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 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 61 [2023-12-22 00:14:37,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:37,323 INFO L225 Difference]: With dead ends: 7418 [2023-12-22 00:14:37,323 INFO L226 Difference]: Without dead ends: 6120 [2023-12-22 00:14:37,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 00:14:37,326 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 2081 mSDsluCounter, 10695 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 12216 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:37,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 12216 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 00:14:37,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6120 states. [2023-12-22 00:14:37,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6120 to 5200. [2023-12-22 00:14:37,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5200 states, 5198 states have (on average 1.5036552520200077) internal successors, (7816), 5199 states have internal predecessors, (7816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 5200 states and 7816 transitions. [2023-12-22 00:14:37,480 INFO L78 Accepts]: Start accepts. Automaton has 5200 states and 7816 transitions. Word has length 61 [2023-12-22 00:14:37,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:37,480 INFO L495 AbstractCegarLoop]: Abstraction has 5200 states and 7816 transitions. [2023-12-22 00:14:37,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5200 states and 7816 transitions. [2023-12-22 00:14:37,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 00:14:37,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:37,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:14:37,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-22 00:14:37,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:37,686 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:37,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:37,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1840372938, now seen corresponding path program 1 times [2023-12-22 00:14:37,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:37,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716576516] [2023-12-22 00:14:37,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:37,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:37,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:37,688 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:37,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 00:14:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:37,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:14:37,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:37,803 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:37,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:14:37,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:37,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716576516] [2023-12-22 00:14:37,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716576516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:14:37,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:14:37,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:14:37,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98866509] [2023-12-22 00:14:37,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:14:37,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:14:37,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:37,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:14:37,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:37,805 INFO L87 Difference]: Start difference. First operand 5200 states and 7816 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:37,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:37,884 INFO L93 Difference]: Finished difference Result 7812 states and 11651 transitions. [2023-12-22 00:14:37,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:14:37,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-12-22 00:14:37,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:37,913 INFO L225 Difference]: With dead ends: 7812 [2023-12-22 00:14:37,913 INFO L226 Difference]: Without dead ends: 4146 [2023-12-22 00:14:37,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:37,919 INFO L413 NwaCegarLoop]: 1551 mSDtfsCounter, 39 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3059 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:37,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3059 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:14:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4146 states. [2023-12-22 00:14:38,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4146 to 4139. [2023-12-22 00:14:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 4137 states have (on average 1.5167996132463137) internal successors, (6275), 4138 states have internal predecessors, (6275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:38,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 6275 transitions. [2023-12-22 00:14:38,031 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 6275 transitions. Word has length 61 [2023-12-22 00:14:38,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:38,031 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 6275 transitions. [2023-12-22 00:14:38,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:38,032 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 6275 transitions. [2023-12-22 00:14:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-22 00:14:38,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:38,033 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:38,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:38,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:38,243 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:38,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:38,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1229966858, now seen corresponding path program 1 times [2023-12-22 00:14:38,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:38,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208563891] [2023-12-22 00:14:38,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:38,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:38,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:38,245 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:38,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 00:14:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:38,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:14:38,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:38,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:14:38,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:38,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208563891] [2023-12-22 00:14:38,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208563891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:14:38,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:14:38,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:14:38,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64837102] [2023-12-22 00:14:38,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:14:38,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:14:38,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:38,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:14:38,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:38,374 INFO L87 Difference]: Start difference. First operand 4139 states and 6275 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:38,437 INFO L93 Difference]: Finished difference Result 5439 states and 8161 transitions. [2023-12-22 00:14:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:14:38,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-12-22 00:14:38,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:38,443 INFO L225 Difference]: With dead ends: 5439 [2023-12-22 00:14:38,443 INFO L226 Difference]: Without dead ends: 2845 [2023-12-22 00:14:38,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:38,447 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 35 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:38,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3044 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:14:38,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2023-12-22 00:14:38,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2843. [2023-12-22 00:14:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2843 states, 2841 states have (on average 1.537134811686026) internal successors, (4367), 2842 states have internal predecessors, (4367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:38,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 4367 transitions. [2023-12-22 00:14:38,514 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 4367 transitions. Word has length 63 [2023-12-22 00:14:38,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:38,515 INFO L495 AbstractCegarLoop]: Abstraction has 2843 states and 4367 transitions. [2023-12-22 00:14:38,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:38,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 4367 transitions. [2023-12-22 00:14:38,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-22 00:14:38,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:38,516 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:38,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-22 00:14:38,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:38,720 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:38,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:38,721 INFO L85 PathProgramCache]: Analyzing trace with hash -230365748, now seen corresponding path program 1 times [2023-12-22 00:14:38,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:38,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421844229] [2023-12-22 00:14:38,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:38,721 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 [2023-12-22 00:14:38,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:38,722 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:38,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 00:14:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:38,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:14:38,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:39,587 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:39,875 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:39,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:39,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421844229] [2023-12-22 00:14:39,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421844229] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:39,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:39,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:14:39,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118892365] [2023-12-22 00:14:39,876 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:39,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:14:39,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:39,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:14:39,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:14:39,877 INFO L87 Difference]: Start difference. First operand 2843 states and 4367 transitions. Second operand has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:41,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:41,644 INFO L93 Difference]: Finished difference Result 6475 states and 9507 transitions. [2023-12-22 00:14:41,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:14:41,645 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 0 states have call successors, (0), 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 64 [2023-12-22 00:14:41,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:41,658 INFO L225 Difference]: With dead ends: 6475 [2023-12-22 00:14:41,658 INFO L226 Difference]: Without dead ends: 5177 [2023-12-22 00:14:41,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:14:41,691 INFO L413 NwaCegarLoop]: 1557 mSDtfsCounter, 1831 mSDsluCounter, 12229 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 13786 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:41,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 13786 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 00:14:41,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2023-12-22 00:14:41,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 4283. [2023-12-22 00:14:41,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4283 states, 4281 states have (on average 1.482597523943004) internal successors, (6347), 4282 states have internal predecessors, (6347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4283 states to 4283 states and 6347 transitions. [2023-12-22 00:14:41,843 INFO L78 Accepts]: Start accepts. Automaton has 4283 states and 6347 transitions. Word has length 64 [2023-12-22 00:14:41,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:41,843 INFO L495 AbstractCegarLoop]: Abstraction has 4283 states and 6347 transitions. [2023-12-22 00:14:41,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:41,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4283 states and 6347 transitions. [2023-12-22 00:14:41,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 00:14:41,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:41,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:14:41,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:42,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:42,053 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:42,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:42,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1052396436, now seen corresponding path program 1 times [2023-12-22 00:14:42,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:42,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559167164] [2023-12-22 00:14:42,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:42,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:42,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:42,055 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:42,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 00:14:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:42,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:14:42,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:42,168 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:42,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:14:42,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:42,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [559167164] [2023-12-22 00:14:42,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [559167164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:14:42,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:14:42,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:14:42,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911275091] [2023-12-22 00:14:42,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:14:42,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:14:42,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:42,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:14:42,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:42,170 INFO L87 Difference]: Start difference. First operand 4283 states and 6347 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:42,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:42,225 INFO L93 Difference]: Finished difference Result 5655 states and 8269 transitions. [2023-12-22 00:14:42,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:14:42,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-12-22 00:14:42,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:42,230 INFO L225 Difference]: With dead ends: 5655 [2023-12-22 00:14:42,230 INFO L226 Difference]: Without dead ends: 2917 [2023-12-22 00:14:42,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:42,236 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 31 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:42,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3029 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:14:42,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2023-12-22 00:14:42,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2915. [2023-12-22 00:14:42,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2913 states have (on average 1.5115001716443528) internal successors, (4403), 2914 states have internal predecessors, (4403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:42,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4403 transitions. [2023-12-22 00:14:42,285 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4403 transitions. Word has length 66 [2023-12-22 00:14:42,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:42,286 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4403 transitions. [2023-12-22 00:14:42,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:42,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4403 transitions. [2023-12-22 00:14:42,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-22 00:14:42,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:42,287 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:42,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-22 00:14:42,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:42,490 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:42,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:42,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1405160106, now seen corresponding path program 1 times [2023-12-22 00:14:42,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:42,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096285777] [2023-12-22 00:14:42,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:42,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:42,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:42,493 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:42,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 00:14:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:42,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:14:42,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:43,333 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:43,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:43,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:43,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:43,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096285777] [2023-12-22 00:14:43,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1096285777] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:43,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:43,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:14:43,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429699946] [2023-12-22 00:14:43,701 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:43,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:14:43,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:43,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:14:43,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:14:43,702 INFO L87 Difference]: Start difference. First operand 2915 states and 4403 transitions. Second operand has 16 states, 16 states have (on average 7.875) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:45,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:45,055 INFO L93 Difference]: Finished difference Result 6547 states and 9375 transitions. [2023-12-22 00:14:45,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:14:45,056 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.875) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 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 67 [2023-12-22 00:14:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:45,066 INFO L225 Difference]: With dead ends: 6547 [2023-12-22 00:14:45,066 INFO L226 Difference]: Without dead ends: 5177 [2023-12-22 00:14:45,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:14:45,070 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 3468 mSDsluCounter, 9159 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3468 SdHoareTripleChecker+Valid, 10698 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:45,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3468 Valid, 10698 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 00:14:45,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2023-12-22 00:14:45,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 4427. [2023-12-22 00:14:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4427 states, 4425 states have (on average 1.4506214689265537) internal successors, (6419), 4426 states have internal predecessors, (6419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:45,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 6419 transitions. [2023-12-22 00:14:45,236 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 6419 transitions. Word has length 67 [2023-12-22 00:14:45,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:45,236 INFO L495 AbstractCegarLoop]: Abstraction has 4427 states and 6419 transitions. [2023-12-22 00:14:45,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.875) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:45,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 6419 transitions. [2023-12-22 00:14:45,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-22 00:14:45,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:45,238 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:14:45,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:45,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:45,442 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:45,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:45,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1457434646, now seen corresponding path program 1 times [2023-12-22 00:14:45,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:45,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715647952] [2023-12-22 00:14:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:45,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:45,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:45,444 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:45,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 00:14:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:45,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:14:45,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:45,572 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:45,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:14:45,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:45,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715647952] [2023-12-22 00:14:45,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715647952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:14:45,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:14:45,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:14:45,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846109339] [2023-12-22 00:14:45,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:14:45,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:14:45,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:45,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:14:45,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:45,574 INFO L87 Difference]: Start difference. First operand 4427 states and 6419 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:45,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:45,645 INFO L93 Difference]: Finished difference Result 5805 states and 8278 transitions. [2023-12-22 00:14:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:14:45,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2023-12-22 00:14:45,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:45,651 INFO L225 Difference]: With dead ends: 5805 [2023-12-22 00:14:45,651 INFO L226 Difference]: Without dead ends: 2923 [2023-12-22 00:14:45,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:14:45,655 INFO L413 NwaCegarLoop]: 1530 mSDtfsCounter, 27 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:45,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3014 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:14:45,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2023-12-22 00:14:45,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2921. [2023-12-22 00:14:45,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2919 states have (on average 1.487153134635149) internal successors, (4341), 2920 states have internal predecessors, (4341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4341 transitions. [2023-12-22 00:14:45,719 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4341 transitions. Word has length 69 [2023-12-22 00:14:45,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:45,719 INFO L495 AbstractCegarLoop]: Abstraction has 2921 states and 4341 transitions. [2023-12-22 00:14:45,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4341 transitions. [2023-12-22 00:14:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-22 00:14:45,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:45,720 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:14:45,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-22 00:14:45,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:45,925 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:45,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:45,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1505721536, now seen corresponding path program 1 times [2023-12-22 00:14:45,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:45,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932866794] [2023-12-22 00:14:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:45,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:45,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:45,928 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:45,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 00:14:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:46,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:14:46,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:46,829 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:46,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:47,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:47,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:47,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932866794] [2023-12-22 00:14:47,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932866794] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:47,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:47,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:14:47,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793350691] [2023-12-22 00:14:47,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:47,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:14:47,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:47,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:14:47,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:14:47,260 INFO L87 Difference]: Start difference. First operand 2921 states and 4341 transitions. Second operand has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:48,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:48,507 INFO L93 Difference]: Finished difference Result 5531 states and 7772 transitions. [2023-12-22 00:14:48,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 00:14:48,508 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 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 70 [2023-12-22 00:14:48,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:48,514 INFO L225 Difference]: With dead ends: 5531 [2023-12-22 00:14:48,514 INFO L226 Difference]: Without dead ends: 4155 [2023-12-22 00:14:48,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 00:14:48,517 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 4886 mSDsluCounter, 10540 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4886 SdHoareTripleChecker+Valid, 12061 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:48,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4886 Valid, 12061 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 00:14:48,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2023-12-22 00:14:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3905. [2023-12-22 00:14:48,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3905 states, 3903 states have (on average 1.4332564693825263) internal successors, (5594), 3904 states have internal predecessors, (5594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:48,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 5594 transitions. [2023-12-22 00:14:48,615 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 5594 transitions. Word has length 70 [2023-12-22 00:14:48,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:48,615 INFO L495 AbstractCegarLoop]: Abstraction has 3905 states and 5594 transitions. [2023-12-22 00:14:48,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 5594 transitions. [2023-12-22 00:14:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-22 00:14:48,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:48,616 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:14:48,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:48,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:48,821 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:48,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:48,821 INFO L85 PathProgramCache]: Analyzing trace with hash -503442312, now seen corresponding path program 1 times [2023-12-22 00:14:48,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:48,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172781739] [2023-12-22 00:14:48,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:48,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:48,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:48,823 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:48,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 00:14:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:48,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 00:14:48,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:49,057 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:14:49,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:49,244 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:14:49,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:49,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172781739] [2023-12-22 00:14:49,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172781739] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:49,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:49,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:14:49,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758869911] [2023-12-22 00:14:49,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:49,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:14:49,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:49,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:14:49,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:14:49,247 INFO L87 Difference]: Start difference. First operand 3905 states and 5594 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:49,504 INFO L93 Difference]: Finished difference Result 10665 states and 14250 transitions. [2023-12-22 00:14:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:14:49,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-22 00:14:49,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:49,515 INFO L225 Difference]: With dead ends: 10665 [2023-12-22 00:14:49,515 INFO L226 Difference]: Without dead ends: 8305 [2023-12-22 00:14:49,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:14:49,520 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 1581 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:49,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 3187 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:14:49,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8305 states. [2023-12-22 00:14:49,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8305 to 8099. [2023-12-22 00:14:49,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.3091268371001605) internal successors, (10600), 8098 states have internal predecessors, (10600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:49,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10600 transitions. [2023-12-22 00:14:49,779 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10600 transitions. Word has length 72 [2023-12-22 00:14:49,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:49,779 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10600 transitions. [2023-12-22 00:14:49,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:49,779 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10600 transitions. [2023-12-22 00:14:49,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-22 00:14:49,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:49,782 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:14:49,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-22 00:14:50,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:50,001 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:50,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:50,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1338657946, now seen corresponding path program 1 times [2023-12-22 00:14:50,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:50,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156342281] [2023-12-22 00:14:50,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:50,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:50,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:50,003 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:50,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-22 00:14:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:50,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:14:50,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:51,684 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:51,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:52,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:52,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156342281] [2023-12-22 00:14:52,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156342281] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:52,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:52,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:14:52,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834736388] [2023-12-22 00:14:52,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:52,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:14:52,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:14:52,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:14:52,307 INFO L87 Difference]: Start difference. First operand 8099 states and 10600 transitions. Second operand has 26 states, 26 states have (on average 7.769230769230769) internal successors, (202), 25 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:14:55,048 INFO L93 Difference]: Finished difference Result 12487 states and 16087 transitions. [2023-12-22 00:14:55,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 00:14:55,049 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.769230769230769) internal successors, (202), 25 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-22 00:14:55,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:14:55,059 INFO L225 Difference]: With dead ends: 12487 [2023-12-22 00:14:55,060 INFO L226 Difference]: Without dead ends: 8205 [2023-12-22 00:14:55,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 00:14:55,066 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 18000 mSDsluCounter, 9292 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18000 SdHoareTripleChecker+Valid, 10800 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:14:55,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18000 Valid, 10800 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 00:14:55,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8205 states. [2023-12-22 00:14:55,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8205 to 8099. [2023-12-22 00:14:55,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.2956650611337532) internal successors, (10491), 8098 states have internal predecessors, (10491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:55,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10491 transitions. [2023-12-22 00:14:55,485 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10491 transitions. Word has length 111 [2023-12-22 00:14:55,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:14:55,485 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10491 transitions. [2023-12-22 00:14:55,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.769230769230769) internal successors, (202), 25 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:14:55,485 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10491 transitions. [2023-12-22 00:14:55,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-22 00:14:55,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:14:55,489 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:14:55,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-22 00:14:55,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:55,694 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:14:55,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:14:55,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2085411094, now seen corresponding path program 1 times [2023-12-22 00:14:55,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:14:55,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34385946] [2023-12-22 00:14:55,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:14:55,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:14:55,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:14:55,698 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:14:55,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 00:14:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:14:55,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:14:55,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:14:57,178 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:57,178 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:14:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:14:57,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:14:57,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34385946] [2023-12-22 00:14:57,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34385946] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:14:57,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:14:57,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:14:57,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395342292] [2023-12-22 00:14:57,859 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:14:57,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:14:57,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:14:57,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:14:57,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:14:57,861 INFO L87 Difference]: Start difference. First operand 8099 states and 10491 transitions. Second operand has 26 states, 26 states have (on average 8.0) internal successors, (208), 25 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) [2023-12-22 00:15:00,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:00,805 INFO L93 Difference]: Finished difference Result 11771 states and 15054 transitions. [2023-12-22 00:15:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:15:00,806 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.0) internal successors, (208), 25 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 112 [2023-12-22 00:15:00,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:00,819 INFO L225 Difference]: With dead ends: 11771 [2023-12-22 00:15:00,819 INFO L226 Difference]: Without dead ends: 8989 [2023-12-22 00:15:00,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 00:15:00,824 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 13514 mSDsluCounter, 7880 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13514 SdHoareTripleChecker+Valid, 9388 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:00,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13514 Valid, 9388 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 00:15:00,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8989 states. [2023-12-22 00:15:01,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8989 to 8099. [2023-12-22 00:15:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.2892429294800543) internal successors, (10439), 8098 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:01,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10439 transitions. [2023-12-22 00:15:01,247 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10439 transitions. Word has length 112 [2023-12-22 00:15:01,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:01,248 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10439 transitions. [2023-12-22 00:15:01,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.0) internal successors, (208), 25 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) [2023-12-22 00:15:01,248 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10439 transitions. [2023-12-22 00:15:01,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-22 00:15:01,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:01,265 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:15:01,273 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 [2023-12-22 00:15:01,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:01,466 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:01,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:01,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2003504886, now seen corresponding path program 1 times [2023-12-22 00:15:01,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:01,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145562743] [2023-12-22 00:15:01,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:01,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:01,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:01,468 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:15:01,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 00:15:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:01,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:15:01,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 22 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:03,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:15:03,485 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 22 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:03,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:03,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145562743] [2023-12-22 00:15:03,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145562743] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:15:03,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:15:03,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:15:03,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920834016] [2023-12-22 00:15:03,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:15:03,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:15:03,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:03,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:15:03,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:15:03,488 INFO L87 Difference]: Start difference. First operand 8099 states and 10439 transitions. Second operand has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:05,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:05,776 INFO L93 Difference]: Finished difference Result 11273 states and 14341 transitions. [2023-12-22 00:15:05,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:15:05,777 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 states have internal predecessors, (214), 0 states have call successors, (0), 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 113 [2023-12-22 00:15:05,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:05,788 INFO L225 Difference]: With dead ends: 11273 [2023-12-22 00:15:05,788 INFO L226 Difference]: Without dead ends: 8617 [2023-12-22 00:15:05,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 00:15:05,793 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 19420 mSDsluCounter, 7710 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19420 SdHoareTripleChecker+Valid, 9218 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:05,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19420 Valid, 9218 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 00:15:05,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2023-12-22 00:15:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 8099. [2023-12-22 00:15:06,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.2825737927627516) internal successors, (10385), 8098 states have internal predecessors, (10385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:06,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10385 transitions. [2023-12-22 00:15:06,085 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10385 transitions. Word has length 113 [2023-12-22 00:15:06,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:06,085 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10385 transitions. [2023-12-22 00:15:06,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:06,085 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10385 transitions. [2023-12-22 00:15:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:15:06,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:06,088 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:15:06,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-22 00:15:06,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:06,293 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:06,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:06,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2105702070, now seen corresponding path program 1 times [2023-12-22 00:15:06,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:06,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876325485] [2023-12-22 00:15:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:06,294 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 [2023-12-22 00:15:06,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:06,295 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:15:06,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 00:15:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:06,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:15:06,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:08,529 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:08,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:15:09,241 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:09,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:09,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876325485] [2023-12-22 00:15:09,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876325485] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:15:09,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:15:09,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:15:09,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587412039] [2023-12-22 00:15:09,242 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:15:09,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:15:09,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:09,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:15:09,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:15:09,246 INFO L87 Difference]: Start difference. First operand 8099 states and 10385 transitions. Second operand has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:17,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:17,011 INFO L93 Difference]: Finished difference Result 12203 states and 15335 transitions. [2023-12-22 00:15:17,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 00:15:17,011 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 0 states have call successors, (0), 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 [2023-12-22 00:15:17,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:17,022 INFO L225 Difference]: With dead ends: 12203 [2023-12-22 00:15:17,022 INFO L226 Difference]: Without dead ends: 11033 [2023-12-22 00:15:17,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 00:15:17,027 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 2133 mSDsluCounter, 25119 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 26726 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:17,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 26726 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-22 00:15:17,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11033 states. [2023-12-22 00:15:17,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11033 to 5947. [2023-12-22 00:15:17,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5947 states, 5945 states have (on average 1.313036164844407) internal successors, (7806), 5946 states have internal predecessors, (7806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:17,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5947 states to 5947 states and 7806 transitions. [2023-12-22 00:15:17,321 INFO L78 Accepts]: Start accepts. Automaton has 5947 states and 7806 transitions. Word has length 114 [2023-12-22 00:15:17,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:17,322 INFO L495 AbstractCegarLoop]: Abstraction has 5947 states and 7806 transitions. [2023-12-22 00:15:17,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:17,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5947 states and 7806 transitions. [2023-12-22 00:15:17,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:15:17,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:17,324 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:15:17,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-22 00:15:17,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:17,528 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:17,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:17,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1834559654, now seen corresponding path program 1 times [2023-12-22 00:15:17,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:17,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748746993] [2023-12-22 00:15:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:17,528 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:17,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:17,530 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:15:17,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 00:15:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:17,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:15:17,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:19,331 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 13 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:19,331 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:15:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 13 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:20,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:20,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748746993] [2023-12-22 00:15:20,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748746993] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:15:20,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:15:20,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:15:20,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842061467] [2023-12-22 00:15:20,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:15:20,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:15:20,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:20,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:15:20,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:15:20,006 INFO L87 Difference]: Start difference. First operand 5947 states and 7806 transitions. Second operand has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 26 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) [2023-12-22 00:15:26,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:26,186 INFO L93 Difference]: Finished difference Result 13579 states and 16838 transitions. [2023-12-22 00:15:26,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 00:15:26,186 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 26 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) Word has length 114 [2023-12-22 00:15:26,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:26,198 INFO L225 Difference]: With dead ends: 13579 [2023-12-22 00:15:26,199 INFO L226 Difference]: Without dead ends: 11435 [2023-12-22 00:15:26,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 00:15:26,203 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 4979 mSDsluCounter, 21688 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4979 SdHoareTripleChecker+Valid, 23282 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:26,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4979 Valid, 23282 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-22 00:15:26,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11435 states. [2023-12-22 00:15:26,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11435 to 6663. [2023-12-22 00:15:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 6661 states have (on average 1.2944002402041737) internal successors, (8622), 6662 states have internal predecessors, (8622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:26,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 8622 transitions. [2023-12-22 00:15:26,563 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 8622 transitions. Word has length 114 [2023-12-22 00:15:26,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:26,563 INFO L495 AbstractCegarLoop]: Abstraction has 6663 states and 8622 transitions. [2023-12-22 00:15:26,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 26 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) [2023-12-22 00:15:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 8622 transitions. [2023-12-22 00:15:26,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:15:26,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:26,565 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:15:26,576 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 (25)] Ended with exit code 0 [2023-12-22 00:15:26,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:26,769 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:26,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:26,769 INFO L85 PathProgramCache]: Analyzing trace with hash -319819994, now seen corresponding path program 1 times [2023-12-22 00:15:26,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:26,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542655228] [2023-12-22 00:15:26,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:26,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:26,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:26,771 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:15:26,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 00:15:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:26,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:15:26,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:28,512 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 31 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:28,513 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:15:29,153 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 31 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:29,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:29,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542655228] [2023-12-22 00:15:29,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542655228] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:15:29,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:15:29,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:15:29,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379071227] [2023-12-22 00:15:29,154 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:15:29,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:15:29,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:29,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:15:29,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:15:29,166 INFO L87 Difference]: Start difference. First operand 6663 states and 8622 transitions. Second operand has 26 states, 26 states have (on average 8.153846153846153) internal successors, (212), 26 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:35,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:35,918 INFO L93 Difference]: Finished difference Result 10668 states and 13415 transitions. [2023-12-22 00:15:35,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-22 00:15:35,918 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.153846153846153) internal successors, (212), 26 states have internal predecessors, (212), 0 states have call successors, (0), 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 [2023-12-22 00:15:35,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:35,929 INFO L225 Difference]: With dead ends: 10668 [2023-12-22 00:15:35,930 INFO L226 Difference]: Without dead ends: 9370 [2023-12-22 00:15:35,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1054 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-22 00:15:35,934 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 3616 mSDsluCounter, 20523 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3616 SdHoareTripleChecker+Valid, 22137 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:35,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3616 Valid, 22137 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 00:15:35,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9370 states. [2023-12-22 00:15:36,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9370 to 7698. [2023-12-22 00:15:36,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7696 states have (on average 1.2775467775467775) internal successors, (9832), 7697 states have internal predecessors, (9832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:36,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 9832 transitions. [2023-12-22 00:15:36,389 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 9832 transitions. Word has length 114 [2023-12-22 00:15:36,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:36,389 INFO L495 AbstractCegarLoop]: Abstraction has 7698 states and 9832 transitions. [2023-12-22 00:15:36,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.153846153846153) internal successors, (212), 26 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:36,390 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 9832 transitions. [2023-12-22 00:15:36,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:15:36,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:36,392 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:15:36,396 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 [2023-12-22 00:15:36,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:36,596 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:36,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash 178180810, now seen corresponding path program 1 times [2023-12-22 00:15:36,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:36,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943096661] [2023-12-22 00:15:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:36,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:36,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:36,598 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:15:36,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 00:15:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:36,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:15:36,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:38,186 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:38,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:15:39,185 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:39,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:39,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943096661] [2023-12-22 00:15:39,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943096661] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:15:39,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:15:39,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:15:39,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17106900] [2023-12-22 00:15:39,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:15:39,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:15:39,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:39,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:15:39,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:15:39,187 INFO L87 Difference]: Start difference. First operand 7698 states and 9832 transitions. Second operand has 26 states, 26 states have (on average 7.961538461538462) internal successors, (207), 26 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:46,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:46,637 INFO L93 Difference]: Finished difference Result 19283 states and 23371 transitions. [2023-12-22 00:15:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 00:15:46,638 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.961538461538462) internal successors, (207), 26 states have internal predecessors, (207), 0 states have call successors, (0), 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 [2023-12-22 00:15:46,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:46,657 INFO L225 Difference]: With dead ends: 19283 [2023-12-22 00:15:46,657 INFO L226 Difference]: Without dead ends: 17437 [2023-12-22 00:15:46,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1371 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 00:15:46,663 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 4999 mSDsluCounter, 25192 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4999 SdHoareTripleChecker+Valid, 26811 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:46,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4999 Valid, 26811 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 00:15:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17437 states. [2023-12-22 00:15:47,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17437 to 13191. [2023-12-22 00:15:47,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13191 states, 13189 states have (on average 1.2306467510804457) internal successors, (16231), 13190 states have internal predecessors, (16231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:47,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13191 states to 13191 states and 16231 transitions. [2023-12-22 00:15:47,401 INFO L78 Accepts]: Start accepts. Automaton has 13191 states and 16231 transitions. Word has length 114 [2023-12-22 00:15:47,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:47,402 INFO L495 AbstractCegarLoop]: Abstraction has 13191 states and 16231 transitions. [2023-12-22 00:15:47,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.961538461538462) internal successors, (207), 26 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:47,402 INFO L276 IsEmpty]: Start isEmpty. Operand 13191 states and 16231 transitions. [2023-12-22 00:15:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 00:15:47,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:47,404 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:15:47,409 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 (27)] Ended with exit code 0 [2023-12-22 00:15:47,607 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 [2023-12-22 00:15:47,608 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:47,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:47,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1755830101, now seen corresponding path program 1 times [2023-12-22 00:15:47,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:47,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537865314] [2023-12-22 00:15:47,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:47,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:47,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:47,610 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:15:47,612 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 (28)] Waiting until timeout for monitored process [2023-12-22 00:15:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:47,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:15:47,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 33 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:48,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:15:48,757 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 33 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:48,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:48,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537865314] [2023-12-22 00:15:48,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537865314] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:15:48,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:15:48,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:15:48,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677024066] [2023-12-22 00:15:48,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:15:48,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:15:48,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:48,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:15:48,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:15:48,760 INFO L87 Difference]: Start difference. First operand 13191 states and 16231 transitions. Second operand has 7 states, 7 states have (on average 32.0) internal successors, (224), 6 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) [2023-12-22 00:17:53,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:17:53,665 INFO L93 Difference]: Finished difference Result 20025 states and 27593 transitions. [2023-12-22 00:17:53,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 00:17:53,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 6 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 118 [2023-12-22 00:17:53,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:17:53,689 INFO L225 Difference]: With dead ends: 20025 [2023-12-22 00:17:53,689 INFO L226 Difference]: Without dead ends: 18521 [2023-12-22 00:17:53,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 00:17:53,695 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 5936 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 7585 mSolverCounterSat, 2978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5936 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 10563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2978 IncrementalHoareTripleChecker+Valid, 7585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 123.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:17:53,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5936 Valid, 695 Invalid, 10563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2978 Valid, 7585 Invalid, 0 Unknown, 0 Unchecked, 123.5s Time] [2023-12-22 00:17:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18521 states. [2023-12-22 00:17:54,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18521 to 17697. [2023-12-22 00:17:54,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17697 states, 17695 states have (on average 1.2271828200056514) internal successors, (21715), 17696 states have internal predecessors, (21715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:17:54,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17697 states to 17697 states and 21715 transitions. [2023-12-22 00:17:54,667 INFO L78 Accepts]: Start accepts. Automaton has 17697 states and 21715 transitions. Word has length 118 [2023-12-22 00:17:54,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:17:54,667 INFO L495 AbstractCegarLoop]: Abstraction has 17697 states and 21715 transitions. [2023-12-22 00:17:54,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 6 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) [2023-12-22 00:17:54,668 INFO L276 IsEmpty]: Start isEmpty. Operand 17697 states and 21715 transitions. [2023-12-22 00:17:54,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-22 00:17:54,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:17:54,674 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:17:54,680 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 (28)] Forceful destruction successful, exit code 0 [2023-12-22 00:17:54,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:17:54,880 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:17:54,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:17:54,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2065571220, now seen corresponding path program 1 times [2023-12-22 00:17:54,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:17:54,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81945070] [2023-12-22 00:17:54,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:17:54,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:17:54,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:17:54,883 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:17:54,884 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 (29)] Waiting until timeout for monitored process [2023-12-22 00:17:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:17:55,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:17:55,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:17:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:17:55,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:17:55,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:17:55,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81945070] [2023-12-22 00:17:55,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81945070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:17:55,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:17:55,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:17:55,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065055057] [2023-12-22 00:17:55,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:17:55,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:17:55,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:17:55,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:17:55,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:17:55,176 INFO L87 Difference]: Start difference. First operand 17697 states and 21715 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:36,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:18:36,316 INFO L93 Difference]: Finished difference Result 25960 states and 32966 transitions. [2023-12-22 00:18:36,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:18:36,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2023-12-22 00:18:36,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:18:36,339 INFO L225 Difference]: With dead ends: 25960 [2023-12-22 00:18:36,339 INFO L226 Difference]: Without dead ends: 19950 [2023-12-22 00:18:36,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:18:36,349 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 738 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:18:36,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 696 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 40.2s Time] [2023-12-22 00:18:36,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19950 states. [2023-12-22 00:18:37,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19950 to 19199. [2023-12-22 00:18:37,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19199 states, 19197 states have (on average 1.219409282700422) internal successors, (23409), 19198 states have internal predecessors, (23409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:37,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19199 states to 19199 states and 23409 transitions. [2023-12-22 00:18:37,355 INFO L78 Accepts]: Start accepts. Automaton has 19199 states and 23409 transitions. Word has length 156 [2023-12-22 00:18:37,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:18:37,356 INFO L495 AbstractCegarLoop]: Abstraction has 19199 states and 23409 transitions. [2023-12-22 00:18:37,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:37,356 INFO L276 IsEmpty]: Start isEmpty. Operand 19199 states and 23409 transitions. [2023-12-22 00:18:37,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:18:37,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:18:37,362 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:18:37,370 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 (29)] Forceful destruction successful, exit code 0 [2023-12-22 00:18:37,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:37,567 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:18:37,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:18:37,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1056976304, now seen corresponding path program 2 times [2023-12-22 00:18:37,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:18:37,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515466883] [2023-12-22 00:18:37,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:18:37,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:37,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:18:37,569 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:18:37,572 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 (30)] Waiting until timeout for monitored process [2023-12-22 00:18:37,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:18:37,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:18:37,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:18:37,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:18:38,660 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-12-22 00:18:38,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:18:38,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:18:38,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515466883] [2023-12-22 00:18:38,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515466883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:18:38,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:18:38,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:18:38,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271574606] [2023-12-22 00:18:38,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:18:38,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:18:38,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:18:38,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:18:38,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:18:38,663 INFO L87 Difference]: Start difference. First operand 19199 states and 23409 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:39,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:18:39,764 INFO L93 Difference]: Finished difference Result 22603 states and 27647 transitions. [2023-12-22 00:18:39,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:18:39,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2023-12-22 00:18:39,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:18:39,790 INFO L225 Difference]: With dead ends: 22603 [2023-12-22 00:18:39,790 INFO L226 Difference]: Without dead ends: 21590 [2023-12-22 00:18:39,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:18:39,797 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 3044 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3044 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:18:39,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3044 Valid, 3193 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:18:39,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21590 states. [2023-12-22 00:18:40,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21590 to 20867. [2023-12-22 00:18:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20867 states, 20865 states have (on average 1.2144739995207285) internal successors, (25340), 20866 states have internal predecessors, (25340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:40,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20867 states to 20867 states and 25340 transitions. [2023-12-22 00:18:40,820 INFO L78 Accepts]: Start accepts. Automaton has 20867 states and 25340 transitions. Word has length 158 [2023-12-22 00:18:40,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:18:40,821 INFO L495 AbstractCegarLoop]: Abstraction has 20867 states and 25340 transitions. [2023-12-22 00:18:40,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:40,821 INFO L276 IsEmpty]: Start isEmpty. Operand 20867 states and 25340 transitions. [2023-12-22 00:18:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:18:40,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:18:40,827 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:18:40,833 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 (30)] Forceful destruction successful, exit code 0 [2023-12-22 00:18:41,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:41,031 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:18:41,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:18:41,032 INFO L85 PathProgramCache]: Analyzing trace with hash 702270732, now seen corresponding path program 2 times [2023-12-22 00:18:41,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:18:41,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286236313] [2023-12-22 00:18:41,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:18:41,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:41,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:18:41,034 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:18:41,035 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 (31)] Waiting until timeout for monitored process [2023-12-22 00:18:41,116 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:18:41,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:18:41,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:18:41,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:18:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-12-22 00:18:42,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:18:42,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:18:42,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286236313] [2023-12-22 00:18:42,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286236313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:18:42,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:18:42,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:18:42,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178053764] [2023-12-22 00:18:42,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:18:42,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:18:42,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:18:42,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:18:42,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:18:42,297 INFO L87 Difference]: Start difference. First operand 20867 states and 25340 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:43,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:18:43,226 INFO L93 Difference]: Finished difference Result 23234 states and 28352 transitions. [2023-12-22 00:18:43,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:18:43,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 158 [2023-12-22 00:18:43,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:18:43,251 INFO L225 Difference]: With dead ends: 23234 [2023-12-22 00:18:43,252 INFO L226 Difference]: Without dead ends: 20611 [2023-12-22 00:18:43,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:18:43,258 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 3047 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:18:43,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3047 Valid, 3196 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:18:43,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20611 states. [2023-12-22 00:18:44,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20611 to 19888. [2023-12-22 00:18:44,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19888 states, 19886 states have (on average 1.2106507090415368) internal successors, (24075), 19887 states have internal predecessors, (24075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:44,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19888 states to 19888 states and 24075 transitions. [2023-12-22 00:18:44,154 INFO L78 Accepts]: Start accepts. Automaton has 19888 states and 24075 transitions. Word has length 158 [2023-12-22 00:18:44,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:18:44,155 INFO L495 AbstractCegarLoop]: Abstraction has 19888 states and 24075 transitions. [2023-12-22 00:18:44,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:44,155 INFO L276 IsEmpty]: Start isEmpty. Operand 19888 states and 24075 transitions. [2023-12-22 00:18:44,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:18:44,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:18:44,208 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:18:44,227 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 (31)] Forceful destruction successful, exit code 0 [2023-12-22 00:18:44,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:44,411 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:18:44,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:18:44,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1452108916, now seen corresponding path program 2 times [2023-12-22 00:18:44,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:18:44,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318139208] [2023-12-22 00:18:44,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:18:44,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:44,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:18:44,413 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:18:44,415 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 (32)] Waiting until timeout for monitored process [2023-12-22 00:18:44,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:18:44,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:18:44,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:18:44,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:18:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-12-22 00:18:45,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:18:45,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:18:45,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318139208] [2023-12-22 00:18:45,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318139208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:18:45,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:18:45,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:18:45,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448195673] [2023-12-22 00:18:45,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:18:45,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:18:45,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:18:45,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:18:45,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:18:45,577 INFO L87 Difference]: Start difference. First operand 19888 states and 24075 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:46,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:18:46,544 INFO L93 Difference]: Finished difference Result 22177 states and 26985 transitions. [2023-12-22 00:18:46,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:18:46,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2023-12-22 00:18:46,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:18:46,569 INFO L225 Difference]: With dead ends: 22177 [2023-12-22 00:18:46,570 INFO L226 Difference]: Without dead ends: 21150 [2023-12-22 00:18:46,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:18:46,576 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 3037 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3037 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:18:46,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3037 Valid, 3229 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:18:46,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21150 states. [2023-12-22 00:18:47,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21150 to 20656. [2023-12-22 00:18:47,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20656 states, 20654 states have (on average 1.2079016171201704) internal successors, (24948), 20655 states have internal predecessors, (24948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:47,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20656 states to 20656 states and 24948 transitions. [2023-12-22 00:18:47,527 INFO L78 Accepts]: Start accepts. Automaton has 20656 states and 24948 transitions. Word has length 158 [2023-12-22 00:18:47,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:18:47,527 INFO L495 AbstractCegarLoop]: Abstraction has 20656 states and 24948 transitions. [2023-12-22 00:18:47,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:47,527 INFO L276 IsEmpty]: Start isEmpty. Operand 20656 states and 24948 transitions. [2023-12-22 00:18:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:18:47,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:18:47,534 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:18:47,537 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 (32)] Forceful destruction successful, exit code 0 [2023-12-22 00:18:47,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:47,737 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:18:47,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:18:47,737 INFO L85 PathProgramCache]: Analyzing trace with hash -954108112, now seen corresponding path program 2 times [2023-12-22 00:18:47,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:18:47,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905121053] [2023-12-22 00:18:47,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:18:47,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:47,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:18:47,739 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:18:47,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 00:18:47,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:18:47,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:18:47,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:18:47,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:18:49,082 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-12-22 00:18:49,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:18:49,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:18:49,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905121053] [2023-12-22 00:18:49,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905121053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:18:49,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:18:49,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:18:49,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601341189] [2023-12-22 00:18:49,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:18:49,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:18:49,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:18:49,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:18:49,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:18:49,084 INFO L87 Difference]: Start difference. First operand 20656 states and 24948 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:50,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:18:50,471 INFO L93 Difference]: Finished difference Result 22987 states and 27907 transitions. [2023-12-22 00:18:50,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:18:50,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 158 [2023-12-22 00:18:50,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:18:50,500 INFO L225 Difference]: With dead ends: 22987 [2023-12-22 00:18:50,500 INFO L226 Difference]: Without dead ends: 21930 [2023-12-22 00:18:50,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:18:50,510 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 3032 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3032 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:18:50,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3032 Valid, 3201 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:18:50,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21930 states. [2023-12-22 00:18:51,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21930 to 21436. [2023-12-22 00:18:51,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21436 states, 21434 states have (on average 1.2053279835774937) internal successors, (25835), 21435 states have internal predecessors, (25835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21436 states to 21436 states and 25835 transitions. [2023-12-22 00:18:51,618 INFO L78 Accepts]: Start accepts. Automaton has 21436 states and 25835 transitions. Word has length 158 [2023-12-22 00:18:51,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:18:51,619 INFO L495 AbstractCegarLoop]: Abstraction has 21436 states and 25835 transitions. [2023-12-22 00:18:51,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 21436 states and 25835 transitions. [2023-12-22 00:18:51,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 00:18:51,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:18:51,635 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:18:51,640 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 (33)] Ended with exit code 0 [2023-12-22 00:18:51,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:51,838 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:18:51,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:18:51,839 INFO L85 PathProgramCache]: Analyzing trace with hash -309453274, now seen corresponding path program 1 times [2023-12-22 00:18:51,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:18:51,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656452457] [2023-12-22 00:18:51,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:18:51,839 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 [2023-12-22 00:18:51,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:18:51,841 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:18:51,870 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 (34)] Waiting until timeout for monitored process [2023-12-22 00:18:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:18:51,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:18:51,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:18:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 38 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:18:54,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:18:55,903 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 38 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:18:55,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:18:55,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656452457] [2023-12-22 00:18:55,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656452457] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:18:55,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:18:55,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:18:55,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156681135] [2023-12-22 00:18:55,904 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:18:55,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:18:55,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:18:55,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:18:55,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:18:55,906 INFO L87 Difference]: Start difference. First operand 21436 states and 25835 transitions. Second operand has 36 states, 36 states have (on average 8.5) internal successors, (306), 36 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:19:24,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:19:24,119 INFO L93 Difference]: Finished difference Result 26123 states and 31331 transitions. [2023-12-22 00:19:24,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-22 00:19:24,120 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.5) internal successors, (306), 36 states have internal predecessors, (306), 0 states have call successors, (0), 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 159 [2023-12-22 00:19:24,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:19:24,152 INFO L225 Difference]: With dead ends: 26123 [2023-12-22 00:19:24,152 INFO L226 Difference]: Without dead ends: 24265 [2023-12-22 00:19:24,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4488 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=2331, Invalid=14961, Unknown=0, NotChecked=0, Total=17292 [2023-12-22 00:19:24,166 INFO L413 NwaCegarLoop]: 1686 mSDtfsCounter, 5516 mSDsluCounter, 34180 mSDsCounter, 0 mSdLazyCounter, 5492 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5516 SdHoareTripleChecker+Valid, 35866 SdHoareTripleChecker+Invalid, 5521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 5492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:19:24,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5516 Valid, 35866 Invalid, 5521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 5492 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-22 00:19:24,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24265 states. [2023-12-22 00:19:25,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24265 to 15169. [2023-12-22 00:19:25,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15169 states, 15167 states have (on average 1.2248961561284368) internal successors, (18578), 15168 states have internal predecessors, (18578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:19:25,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15169 states to 15169 states and 18578 transitions. [2023-12-22 00:19:25,088 INFO L78 Accepts]: Start accepts. Automaton has 15169 states and 18578 transitions. Word has length 159 [2023-12-22 00:19:25,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:19:25,089 INFO L495 AbstractCegarLoop]: Abstraction has 15169 states and 18578 transitions. [2023-12-22 00:19:25,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.5) internal successors, (306), 36 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:19:25,089 INFO L276 IsEmpty]: Start isEmpty. Operand 15169 states and 18578 transitions. [2023-12-22 00:19:25,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 00:19:25,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:19:25,093 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:19:25,098 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 (34)] Ended with exit code 0 [2023-12-22 00:19:25,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:19:25,298 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:19:25,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:19:25,299 INFO L85 PathProgramCache]: Analyzing trace with hash -781683766, now seen corresponding path program 1 times [2023-12-22 00:19:25,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:19:25,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029680795] [2023-12-22 00:19:25,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:19:25,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:19:25,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:19:25,301 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:19:25,340 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 (35)] Waiting until timeout for monitored process [2023-12-22 00:19:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:19:25,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:19:25,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:19:28,624 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 54 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:19:28,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:19:30,111 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 54 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:19:30,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:19:30,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029680795] [2023-12-22 00:19:30,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029680795] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:19:30,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:19:30,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:19:30,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914068978] [2023-12-22 00:19:30,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:19:30,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:19:30,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:19:30,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:19:30,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:19:30,113 INFO L87 Difference]: Start difference. First operand 15169 states and 18578 transitions. Second operand has 36 states, 36 states have (on average 8.36111111111111) internal successors, (301), 36 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:20:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:20:00,215 INFO L93 Difference]: Finished difference Result 19536 states and 23680 transitions. [2023-12-22 00:20:00,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-22 00:20:00,215 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.36111111111111) internal successors, (301), 36 states have internal predecessors, (301), 0 states have call successors, (0), 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 159 [2023-12-22 00:20:00,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:20:00,241 INFO L225 Difference]: With dead ends: 19536 [2023-12-22 00:20:00,241 INFO L226 Difference]: Without dead ends: 17659 [2023-12-22 00:20:00,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6304 ImplicationChecksByTransitivity, 22.2s TimeCoverageRelationStatistics Valid=2857, Invalid=19195, Unknown=0, NotChecked=0, Total=22052 [2023-12-22 00:20:00,254 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 6869 mSDsluCounter, 29263 mSDsCounter, 0 mSdLazyCounter, 4535 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6869 SdHoareTripleChecker+Valid, 30947 SdHoareTripleChecker+Invalid, 4574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 4535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:20:00,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6869 Valid, 30947 Invalid, 4574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 4535 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-12-22 00:20:00,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17659 states. [2023-12-22 00:20:01,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17659 to 15581. [2023-12-22 00:20:01,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15581 states, 15579 states have (on average 1.2223506001668913) internal successors, (19043), 15580 states have internal predecessors, (19043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:20:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15581 states to 15581 states and 19043 transitions. [2023-12-22 00:20:01,190 INFO L78 Accepts]: Start accepts. Automaton has 15581 states and 19043 transitions. Word has length 159 [2023-12-22 00:20:01,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:20:01,191 INFO L495 AbstractCegarLoop]: Abstraction has 15581 states and 19043 transitions. [2023-12-22 00:20:01,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.36111111111111) internal successors, (301), 36 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:20:01,191 INFO L276 IsEmpty]: Start isEmpty. Operand 15581 states and 19043 transitions. [2023-12-22 00:20:01,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 00:20:01,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:20:01,195 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:20:01,201 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 (35)] Ended with exit code 0 [2023-12-22 00:20:01,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:20:01,400 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:20:01,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:20:01,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1771439270, now seen corresponding path program 1 times [2023-12-22 00:20:01,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:20:01,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132044892] [2023-12-22 00:20:01,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:20:01,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:20:01,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:20:01,403 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:20:01,405 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 (36)] Waiting until timeout for monitored process [2023-12-22 00:20:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:20:01,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:20:01,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:20:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 70 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:20:04,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:20:06,460 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 70 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:20:06,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:20:06,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132044892] [2023-12-22 00:20:06,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132044892] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:20:06,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:20:06,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:20:06,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872463675] [2023-12-22 00:20:06,461 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:20:06,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:20:06,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:20:06,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:20:06,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:20:06,462 INFO L87 Difference]: Start difference. First operand 15581 states and 19043 transitions. Second operand has 36 states, 36 states have (on average 8.222222222222221) internal successors, (296), 36 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:20:41,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:20:41,130 INFO L93 Difference]: Finished difference Result 20341 states and 24552 transitions. [2023-12-22 00:20:41,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 00:20:41,131 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.222222222222221) internal successors, (296), 36 states have internal predecessors, (296), 0 states have call successors, (0), 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 159 [2023-12-22 00:20:41,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:20:41,159 INFO L225 Difference]: With dead ends: 20341 [2023-12-22 00:20:41,159 INFO L226 Difference]: Without dead ends: 18420 [2023-12-22 00:20:41,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6993 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 00:20:41,169 INFO L413 NwaCegarLoop]: 1721 mSDtfsCounter, 2297 mSDsluCounter, 36786 mSDsCounter, 0 mSdLazyCounter, 7059 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2297 SdHoareTripleChecker+Valid, 38507 SdHoareTripleChecker+Invalid, 7090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 7059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:20:41,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2297 Valid, 38507 Invalid, 7090 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 7059 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2023-12-22 00:20:41,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18420 states. [2023-12-22 00:20:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18420 to 15768. [2023-12-22 00:20:42,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15768 states, 15766 states have (on average 1.2207281491817836) internal successors, (19246), 15767 states have internal predecessors, (19246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:20:42,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15768 states to 15768 states and 19246 transitions. [2023-12-22 00:20:42,205 INFO L78 Accepts]: Start accepts. Automaton has 15768 states and 19246 transitions. Word has length 159 [2023-12-22 00:20:42,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:20:42,205 INFO L495 AbstractCegarLoop]: Abstraction has 15768 states and 19246 transitions. [2023-12-22 00:20:42,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.222222222222221) internal successors, (296), 36 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:20:42,205 INFO L276 IsEmpty]: Start isEmpty. Operand 15768 states and 19246 transitions. [2023-12-22 00:20:42,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-22 00:20:42,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:20:42,209 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:20:42,214 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 (36)] Ended with exit code 0 [2023-12-22 00:20:42,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:20:42,414 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:20:42,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:20:42,414 INFO L85 PathProgramCache]: Analyzing trace with hash 451764756, now seen corresponding path program 1 times [2023-12-22 00:20:42,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:20:42,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388323122] [2023-12-22 00:20:42,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:20:42,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:20:42,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:20:42,416 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:20:42,417 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 (37)] Waiting until timeout for monitored process [2023-12-22 00:20:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:20:42,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:20:42,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:20:46,286 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 32 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:20:46,286 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:20:47,289 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 32 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:20:47,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:20:47,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388323122] [2023-12-22 00:20:47,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388323122] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:20:47,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:20:47,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:20:47,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460342321] [2023-12-22 00:20:47,290 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:20:47,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:20:47,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:20:47,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:20:47,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:20:47,291 INFO L87 Difference]: Start difference. First operand 15768 states and 19246 transitions. Second operand has 36 states, 36 states have (on average 8.666666666666666) internal successors, (312), 36 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:21:09,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:21:09,895 INFO L93 Difference]: Finished difference Result 28183 states and 33570 transitions. [2023-12-22 00:21:09,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 00:21:09,896 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.666666666666666) internal successors, (312), 36 states have internal predecessors, (312), 0 states have call successors, (0), 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 160 [2023-12-22 00:21:09,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:21:09,935 INFO L225 Difference]: With dead ends: 28183 [2023-12-22 00:21:09,935 INFO L226 Difference]: Without dead ends: 26435 [2023-12-22 00:21:09,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 00:21:09,945 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 3623 mSDsluCounter, 34380 mSDsCounter, 0 mSdLazyCounter, 5541 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3623 SdHoareTripleChecker+Valid, 36064 SdHoareTripleChecker+Invalid, 5564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 5541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:21:09,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3623 Valid, 36064 Invalid, 5564 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 5541 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-12-22 00:21:09,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26435 states. [2023-12-22 00:21:11,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26435 to 24049. [2023-12-22 00:21:11,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24049 states, 24047 states have (on average 1.196989229425708) internal successors, (28784), 24048 states have internal predecessors, (28784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:21:12,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24049 states to 24049 states and 28784 transitions. [2023-12-22 00:21:12,013 INFO L78 Accepts]: Start accepts. Automaton has 24049 states and 28784 transitions. Word has length 160 [2023-12-22 00:21:12,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:21:12,014 INFO L495 AbstractCegarLoop]: Abstraction has 24049 states and 28784 transitions. [2023-12-22 00:21:12,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.666666666666666) internal successors, (312), 36 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:21:12,014 INFO L276 IsEmpty]: Start isEmpty. Operand 24049 states and 28784 transitions. [2023-12-22 00:21:12,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 00:21:12,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:21:12,029 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:21:12,036 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 (37)] Forceful destruction successful, exit code 0 [2023-12-22 00:21:12,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:21:12,234 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:21:12,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:21:12,234 INFO L85 PathProgramCache]: Analyzing trace with hash 413689728, now seen corresponding path program 2 times [2023-12-22 00:21:12,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:21:12,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498687031] [2023-12-22 00:21:12,235 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:21:12,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:21:12,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:21:12,236 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:21:12,238 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 (38)] Waiting until timeout for monitored process [2023-12-22 00:21:12,446 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:21:12,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:21:12,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-22 00:21:12,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:21:15,694 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 77 proven. 415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:21:15,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:21:18,129 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 77 proven. 415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:21:18,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:21:18,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498687031] [2023-12-22 00:21:18,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498687031] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:21:18,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:21:18,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:21:18,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118994384] [2023-12-22 00:21:18,130 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:21:18,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:21:18,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:21:18,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:21:18,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1737, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:21:18,132 INFO L87 Difference]: Start difference. First operand 24049 states and 28784 transitions. Second operand has 44 states, 44 states have (on average 8.818181818181818) internal successors, (388), 44 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:22:24,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:22:24,979 INFO L93 Difference]: Finished difference Result 30100 states and 35872 transitions. [2023-12-22 00:22:24,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2023-12-22 00:22:24,980 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 8.818181818181818) internal successors, (388), 44 states have internal predecessors, (388), 0 states have call successors, (0), 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 203 [2023-12-22 00:22:24,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:22:25,013 INFO L225 Difference]: With dead ends: 30100 [2023-12-22 00:22:25,013 INFO L226 Difference]: Without dead ends: 26302 [2023-12-22 00:22:25,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33486 ImplicationChecksByTransitivity, 51.3s TimeCoverageRelationStatistics Valid=9253, Invalid=84077, Unknown=0, NotChecked=0, Total=93330 [2023-12-22 00:22:25,024 INFO L413 NwaCegarLoop]: 1742 mSDtfsCounter, 32232 mSDsluCounter, 20241 mSDsCounter, 0 mSdLazyCounter, 7077 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32232 SdHoareTripleChecker+Valid, 21983 SdHoareTripleChecker+Invalid, 7178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 7077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:22:25,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32232 Valid, 21983 Invalid, 7178 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 7077 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2023-12-22 00:22:25,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26302 states. [2023-12-22 00:22:26,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26302 to 24845. [2023-12-22 00:22:26,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24845 states, 24843 states have (on average 1.194581974801755) internal successors, (29677), 24844 states have internal predecessors, (29677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:22:26,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24845 states to 24845 states and 29677 transitions. [2023-12-22 00:22:26,919 INFO L78 Accepts]: Start accepts. Automaton has 24845 states and 29677 transitions. Word has length 203 [2023-12-22 00:22:26,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:22:26,919 INFO L495 AbstractCegarLoop]: Abstraction has 24845 states and 29677 transitions. [2023-12-22 00:22:26,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 8.818181818181818) internal successors, (388), 44 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:22:26,919 INFO L276 IsEmpty]: Start isEmpty. Operand 24845 states and 29677 transitions. [2023-12-22 00:22:26,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 00:22:26,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:22:26,929 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:22:26,935 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 (38)] Ended with exit code 0 [2023-12-22 00:22:27,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:22:27,134 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:22:27,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:22:27,136 INFO L85 PathProgramCache]: Analyzing trace with hash 296164808, now seen corresponding path program 1 times [2023-12-22 00:22:27,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:22:27,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644912713] [2023-12-22 00:22:27,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:22:27,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:22:27,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:22:27,143 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:22:27,145 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 (39)] Waiting until timeout for monitored process [2023-12-22 00:22:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:22:27,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-22 00:22:27,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:22:29,866 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 100 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:22:29,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:22:31,582 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 100 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:22:31,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:22:31,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644912713] [2023-12-22 00:22:31,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644912713] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:22:31,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:22:31,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:22:31,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649298319] [2023-12-22 00:22:31,583 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:22:31,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:22:31,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:22:31,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:22:31,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1737, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:22:31,586 INFO L87 Difference]: Start difference. First operand 24845 states and 29677 transitions. Second operand has 44 states, 44 states have (on average 8.704545454545455) internal successors, (383), 44 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:23:25,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:23:25,615 INFO L93 Difference]: Finished difference Result 30110 states and 35815 transitions. [2023-12-22 00:23:25,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 254 states. [2023-12-22 00:23:25,616 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 8.704545454545455) internal successors, (383), 44 states have internal predecessors, (383), 0 states have call successors, (0), 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 203 [2023-12-22 00:23:25,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:23:25,640 INFO L225 Difference]: With dead ends: 30110 [2023-12-22 00:23:25,640 INFO L226 Difference]: Without dead ends: 25426 [2023-12-22 00:23:25,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30215 ImplicationChecksByTransitivity, 40.2s TimeCoverageRelationStatistics Valid=8481, Invalid=77075, Unknown=0, NotChecked=0, Total=85556 [2023-12-22 00:23:25,647 INFO L413 NwaCegarLoop]: 1765 mSDtfsCounter, 31881 mSDsluCounter, 22590 mSDsCounter, 0 mSdLazyCounter, 8031 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31881 SdHoareTripleChecker+Valid, 24355 SdHoareTripleChecker+Invalid, 8126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 8031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:23:25,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31881 Valid, 24355 Invalid, 8126 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [95 Valid, 8031 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2023-12-22 00:23:25,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25426 states. [2023-12-22 00:23:27,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25426 to 24246. [2023-12-22 00:23:27,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24246 states, 24244 states have (on average 1.1932436891602045) internal successors, (28929), 24245 states have internal predecessors, (28929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:23:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24246 states to 24246 states and 28929 transitions. [2023-12-22 00:23:27,431 INFO L78 Accepts]: Start accepts. Automaton has 24246 states and 28929 transitions. Word has length 203 [2023-12-22 00:23:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:23:27,432 INFO L495 AbstractCegarLoop]: Abstraction has 24246 states and 28929 transitions. [2023-12-22 00:23:27,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 8.704545454545455) internal successors, (383), 44 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:23:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand 24246 states and 28929 transitions. [2023-12-22 00:23:27,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 00:23:27,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:23:27,441 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:23:27,446 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 (39)] Ended with exit code 0 [2023-12-22 00:23:27,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:23:27,646 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:23:27,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:23:27,646 INFO L85 PathProgramCache]: Analyzing trace with hash 340202624, now seen corresponding path program 1 times [2023-12-22 00:23:27,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:23:27,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933464783] [2023-12-22 00:23:27,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:23:27,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:23:27,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:23:27,648 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:23:27,649 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 (40)] Waiting until timeout for monitored process [2023-12-22 00:23:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:23:27,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-22 00:23:27,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:23:31,364 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 260 proven. 186 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-22 00:23:31,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:23:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 260 proven. 186 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-22 00:23:33,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:23:33,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933464783] [2023-12-22 00:23:33,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933464783] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:23:33,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:23:33,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:23:33,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097325341] [2023-12-22 00:23:33,875 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:23:33,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:23:33,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:23:33,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:23:33,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1722, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:23:33,876 INFO L87 Difference]: Start difference. First operand 24246 states and 28929 transitions. Second operand has 44 states, 44 states have (on average 7.045454545454546) internal successors, (310), 44 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-22 00:27:32,075 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 (40)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:27:32,076 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:27:32,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 410 states. [2023-12-22 00:27:32,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83921 ImplicationChecksByTransitivity, 207.8s TimeCoverageRelationStatistics Valid=16330, Invalid=183032, Unknown=0, NotChecked=0, Total=199362 [2023-12-22 00:27:32,152 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 5226 mSDsluCounter, 6334 mSDsCounter, 0 mSdLazyCounter, 7362 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5226 SdHoareTripleChecker+Valid, 6713 SdHoareTripleChecker+Invalid, 7506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 7362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:27:32,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5226 Valid, 6713 Invalid, 7506 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [144 Valid, 7362 Invalid, 0 Unknown, 0 Unchecked, 27.8s Time] [2023-12-22 00:27:32,154 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 00:27:32,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-22 00:27:32,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:27:32,355 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (24246states) and FLOYD_HOARE automaton (currently 410 states, 44 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 447 known predicates. [2023-12-22 00:27:32,360 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 00:27:32,365 INFO L445 BasicCegarLoop]: Path program histogram: [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] [2023-12-22 00:27:32,367 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 00:27:32,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:27:32 BoogieIcfgContainer [2023-12-22 00:27:32,370 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 00:27:32,376 INFO L158 Benchmark]: Toolchain (without parser) took 867138.44ms. Allocated memory was 219.2MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 157.9MB in the beginning and 718.0MB in the end (delta: -560.0MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-22 00:27:32,376 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 219.2MB. Free memory is still 175.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 00:27:32,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1901.82ms. Allocated memory was 219.2MB in the beginning and 348.1MB in the end (delta: 129.0MB). Free memory was 157.9MB in the beginning and 216.3MB in the end (delta: -58.4MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. [2023-12-22 00:27:32,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 215.13ms. Allocated memory is still 348.1MB. Free memory was 216.3MB in the beginning and 265.6MB in the end (delta: -49.3MB). Peak memory consumption was 24.6MB. Max. memory is 8.0GB. [2023-12-22 00:27:32,378 INFO L158 Benchmark]: Boogie Preprocessor took 257.07ms. Allocated memory is still 348.1MB. Free memory was 265.6MB in the beginning and 226.8MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-22 00:27:32,378 INFO L158 Benchmark]: RCFGBuilder took 40475.76ms. Allocated memory was 348.1MB in the beginning and 634.4MB in the end (delta: 286.3MB). Free memory was 226.8MB in the beginning and 239.8MB in the end (delta: -13.0MB). Peak memory consumption was 283.2MB. Max. memory is 8.0GB. [2023-12-22 00:27:32,378 INFO L158 Benchmark]: TraceAbstraction took 824281.24ms. Allocated memory was 634.4MB in the beginning and 2.0GB in the end (delta: 1.4GB). Free memory was 239.3MB in the beginning and 718.0MB in the end (delta: -478.7MB). Peak memory consumption was 911.7MB. Max. memory is 8.0GB. [2023-12-22 00:27:32,379 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 219.2MB. Free memory is still 175.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1901.82ms. Allocated memory was 219.2MB in the beginning and 348.1MB in the end (delta: 129.0MB). Free memory was 157.9MB in the beginning and 216.3MB in the end (delta: -58.4MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 215.13ms. Allocated memory is still 348.1MB. Free memory was 216.3MB in the beginning and 265.6MB in the end (delta: -49.3MB). Peak memory consumption was 24.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 257.07ms. Allocated memory is still 348.1MB. Free memory was 265.6MB in the beginning and 226.8MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * RCFGBuilder took 40475.76ms. Allocated memory was 348.1MB in the beginning and 634.4MB in the end (delta: 286.3MB). Free memory was 226.8MB in the beginning and 239.8MB in the end (delta: -13.0MB). Peak memory consumption was 283.2MB. Max. memory is 8.0GB. * TraceAbstraction took 824281.24ms. Allocated memory was 634.4MB in the beginning and 2.0GB in the end (delta: 1.4GB). Free memory was 239.3MB in the beginning and 718.0MB in the end (delta: -478.7MB). Peak memory consumption was 911.7MB. 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: 359]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 359). Cancelled while NwaCegarLoop was constructing difference of abstraction (24246states) and FLOYD_HOARE automaton (currently 410 states, 44 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 447 known predicates. - TimeoutResultAtElement [Line: 518]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 518). Cancelled while NwaCegarLoop was constructing difference of abstraction (24246states) and FLOYD_HOARE automaton (currently 410 states, 44 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 447 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 820 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 824.2s, OverallIterations: 39, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 730.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198591 SdHoareTripleChecker+Valid, 318.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198591 mSDsluCounter, 422099 SdHoareTripleChecker+Invalid, 275.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 364877 mSDsCounter, 4911 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70691 IncrementalHoareTripleChecker+Invalid, 75602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4911 mSolverCounterUnsat, 57222 mSDtfsCounter, 70691 mSolverCounterSat, 1.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7995 GetRequests, 5834 SyntacticMatches, 0 SemanticMatches, 2160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175532 ImplicationChecksByTransitivity, 401.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24845occurred in iteration=37, InterpolantAutomatonStates: 1387, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 19.2s AutomataMinimizationTime, 38 MinimizatonAttempts, 43304 StatesRemovedByMinimization, 36 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 62.4s InterpolantComputationTime, 3930 NumberOfCodeBlocks, 3514 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 6361 ConstructedInterpolants, 1760 QuantifiedInterpolants, 85444 SizeOfPredicates, 199 NumberOfNonLiveVariables, 8400 ConjunctsInSsa, 345 ConjunctsInUnsatCore, 59 InterpolantComputations, 19 PerfectInterpolantSequences, 3000/7686 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