/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 09:24:42,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 09:24:42,157 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 09:24:42,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 09:24:42,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 09:24:42,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 09:24:42,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 09:24:42,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 09:24:42,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 09:24:42,176 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 09:24:42,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 09:24:42,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 09:24:42,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 09:24:42,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 09:24:42,177 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 09:24:42,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 09:24:42,177 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 09:24:42,178 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 09:24:42,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 09:24:42,178 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 09:24:42,178 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 09:24:42,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 09:24:42,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 09:24:42,179 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 09:24:42,179 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 09:24:42,180 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 09:24:42,180 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 09:24:42,180 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 09:24:42,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 09:24:42,180 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 09:24:42,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 09:24:42,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 09:24:42,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 09:24:42,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 09:24:42,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:24:42,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 09:24:42,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 09:24:42,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 09:24:42,182 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 09:24:42,182 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 09:24:42,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 09:24:42,184 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 09:24:42,184 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 09:24:42,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 09:24:42,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 09:24:42,185 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 09:24:42,185 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 09:24:42,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 09:24:42,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 09:24:42,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 09:24:42,395 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 09:24:42,395 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 09:24:42,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23.c [2023-12-16 09:24:43,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 09:24:43,749 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 09:24:43,749 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label23.c [2023-12-16 09:24:43,767 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36046a751/8ee43b85e1d645aba0520f77863d39ff/FLAGc8577b274 [2023-12-16 09:24:43,778 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36046a751/8ee43b85e1d645aba0520f77863d39ff [2023-12-16 09:24:43,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 09:24:43,781 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 09:24:43,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 09:24:43,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 09:24:43,788 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 09:24:43,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:24:43" (1/1) ... [2023-12-16 09:24:43,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e26443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:43, skipping insertion in model container [2023-12-16 09:24:43,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:24:43" (1/1) ... [2023-12-16 09:24:43,834 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 09:24:44,009 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label23.c[3423,3436] [2023-12-16 09:24:44,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:24:44,216 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 09:24:44,244 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label23.c[3423,3436] [2023-12-16 09:24:44,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:24:44,382 INFO L206 MainTranslator]: Completed translation [2023-12-16 09:24:44,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44 WrapperNode [2023-12-16 09:24:44,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 09:24:44,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 09:24:44,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 09:24:44,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 09:24:44,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,489 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 857 [2023-12-16 09:24:44,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 09:24:44,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 09:24:44,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 09:24:44,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 09:24:44,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,510 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,542 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 09:24:44,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 09:24:44,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 09:24:44,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 09:24:44,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 09:24:44,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (1/1) ... [2023-12-16 09:24:44,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:24:44,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 09:24:44,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 09:24:44,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 09:24:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 09:24:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 09:24:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 09:24:44,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 09:24:44,735 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 09:24:44,736 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 09:24:47,384 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 09:24:47,442 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 09:24:47,443 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 09:24:47,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:24:47 BoogieIcfgContainer [2023-12-16 09:24:47,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 09:24:47,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 09:24:47,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 09:24:47,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 09:24:47,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:24:43" (1/3) ... [2023-12-16 09:24:47,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c275177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:24:47, skipping insertion in model container [2023-12-16 09:24:47,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:44" (2/3) ... [2023-12-16 09:24:47,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c275177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:24:47, skipping insertion in model container [2023-12-16 09:24:47,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:24:47" (3/3) ... [2023-12-16 09:24:47,450 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label23.c [2023-12-16 09:24:47,463 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 09:24:47,463 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 09:24:47,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 09:24:47,521 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;@2bb9fb20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 09:24:47,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 09:24:47,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-16 09:24:47,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:47,534 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] [2023-12-16 09:24:47,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:47,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:47,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2115016090, now seen corresponding path program 1 times [2023-12-16 09:24:47,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:47,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986018639] [2023-12-16 09:24:47,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:47,552 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:47,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:47,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:47,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 09:24:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:47,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 09:24:47,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:47,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:24:47,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:47,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:47,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986018639] [2023-12-16 09:24:47,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986018639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:47,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:47,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:24:47,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029185598] [2023-12-16 09:24:47,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:47,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 09:24:47,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:47,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 09:24:47,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:24:47,713 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:47,778 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-12-16 09:24:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 09:24:47,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2023-12-16 09:24:47,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:47,791 INFO L225 Difference]: With dead ends: 365 [2023-12-16 09:24:47,791 INFO L226 Difference]: Without dead ends: 181 [2023-12-16 09:24:47,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:24:47,797 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:47,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 09:24:47,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-16 09:24:47,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-16 09:24:47,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:47,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-12-16 09:24:47,854 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 31 [2023-12-16 09:24:47,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:47,854 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-12-16 09:24:47,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:47,854 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-12-16 09:24:47,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-16 09:24:47,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:47,855 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] [2023-12-16 09:24:47,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 09:24:48,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:48,073 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:48,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:48,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1697145414, now seen corresponding path program 1 times [2023-12-16 09:24:48,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:48,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699435854] [2023-12-16 09:24:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:48,075 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:48,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:48,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:48,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 09:24:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:48,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:24:48,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:24:48,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:48,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:48,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699435854] [2023-12-16 09:24:48,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699435854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:48,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:48,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:24:48,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866264190] [2023-12-16 09:24:48,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:48,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:24:48,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:48,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:24:48,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:48,189 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:51,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:51,147 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2023-12-16 09:24:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:24:51,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2023-12-16 09:24:51,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:51,151 INFO L225 Difference]: With dead ends: 539 [2023-12-16 09:24:51,151 INFO L226 Difference]: Without dead ends: 359 [2023-12-16 09:24:51,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:51,152 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 159 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:51,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 64 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 09:24:51,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-16 09:24:51,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-16 09:24:51,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.488826815642458) internal successors, (533), 358 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:51,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 533 transitions. [2023-12-16 09:24:51,172 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 533 transitions. Word has length 31 [2023-12-16 09:24:51,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:51,172 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 533 transitions. [2023-12-16 09:24:51,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:51,172 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 533 transitions. [2023-12-16 09:24:51,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 09:24:51,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:51,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:24:51,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 09:24:51,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:51,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:51,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:51,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1725176852, now seen corresponding path program 1 times [2023-12-16 09:24:51,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:51,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398298090] [2023-12-16 09:24:51,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:51,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:51,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:51,380 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:51,415 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 (4)] Waiting until timeout for monitored process [2023-12-16 09:24:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:51,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:24:51,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:51,593 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:24:51,593 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:51,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:51,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398298090] [2023-12-16 09:24:51,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398298090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:51,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:51,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:24:51,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190184457] [2023-12-16 09:24:51,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:51,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:24:51,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:51,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:24:51,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:51,595 INFO L87 Difference]: Start difference. First operand 359 states and 533 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:55,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:55,073 INFO L93 Difference]: Finished difference Result 1073 states and 1596 transitions. [2023-12-16 09:24:55,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:24:55,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-16 09:24:55,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:55,076 INFO L225 Difference]: With dead ends: 1073 [2023-12-16 09:24:55,077 INFO L226 Difference]: Without dead ends: 715 [2023-12-16 09:24:55,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:55,079 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 115 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:55,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 100 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-16 09:24:55,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-16 09:24:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-12-16 09:24:55,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.3459383753501402) internal successors, (961), 714 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:55,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 961 transitions. [2023-12-16 09:24:55,103 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 961 transitions. Word has length 96 [2023-12-16 09:24:55,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:55,106 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 961 transitions. [2023-12-16 09:24:55,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:55,106 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 961 transitions. [2023-12-16 09:24:55,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 09:24:55,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:55,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:24:55,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 09:24:55,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:55,312 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:55,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:55,313 INFO L85 PathProgramCache]: Analyzing trace with hash -811465360, now seen corresponding path program 1 times [2023-12-16 09:24:55,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:55,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931731697] [2023-12-16 09:24:55,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:55,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:55,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:55,315 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:55,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 09:24:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:55,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:24:55,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:24:55,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:55,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:55,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931731697] [2023-12-16 09:24:55,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931731697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:55,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:55,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:24:55,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027530866] [2023-12-16 09:24:55,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:55,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:24:55,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:55,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:24:55,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:55,515 INFO L87 Difference]: Start difference. First operand 715 states and 961 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:58,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:58,465 INFO L93 Difference]: Finished difference Result 1965 states and 2655 transitions. [2023-12-16 09:24:58,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:24:58,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-16 09:24:58,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:58,469 INFO L225 Difference]: With dead ends: 1965 [2023-12-16 09:24:58,469 INFO L226 Difference]: Without dead ends: 1251 [2023-12-16 09:24:58,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:58,471 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 131 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:58,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 86 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 09:24:58,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2023-12-16 09:24:58,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1249. [2023-12-16 09:24:58,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 1.2467948717948718) internal successors, (1556), 1248 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1556 transitions. [2023-12-16 09:24:58,499 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1556 transitions. Word has length 99 [2023-12-16 09:24:58,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:58,501 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1556 transitions. [2023-12-16 09:24:58,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:24:58,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1556 transitions. [2023-12-16 09:24:58,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 09:24:58,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:58,506 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:24:58,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 09:24:58,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:58,709 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:58,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash -864495342, now seen corresponding path program 1 times [2023-12-16 09:24:58,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:58,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257119103] [2023-12-16 09:24:58,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:58,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:58,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:58,713 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:58,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 09:24:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:58,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 09:24:58,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:24:59,171 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:59,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:59,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257119103] [2023-12-16 09:24:59,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257119103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:59,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:59,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:24:59,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251058426] [2023-12-16 09:24:59,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:59,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 09:24:59,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:59,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 09:24:59,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 09:24:59,175 INFO L87 Difference]: Start difference. First operand 1249 states and 1556 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:01,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:01,181 INFO L93 Difference]: Finished difference Result 2170 states and 2741 transitions. [2023-12-16 09:25:01,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 09:25:01,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 [2023-12-16 09:25:01,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:01,192 INFO L225 Difference]: With dead ends: 2170 [2023-12-16 09:25:01,192 INFO L226 Difference]: Without dead ends: 1071 [2023-12-16 09:25:01,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 09:25:01,194 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 110 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:01,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 110 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 09:25:01,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-16 09:25:01,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-16 09:25:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.2392523364485981) internal successors, (1326), 1070 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:01,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1326 transitions. [2023-12-16 09:25:01,223 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1326 transitions. Word has length 111 [2023-12-16 09:25:01,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:01,223 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1326 transitions. [2023-12-16 09:25:01,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:01,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1326 transitions. [2023-12-16 09:25:01,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-16 09:25:01,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:01,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 09:25:01,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 09:25:01,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:01,440 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:01,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:01,440 INFO L85 PathProgramCache]: Analyzing trace with hash 318660927, now seen corresponding path program 1 times [2023-12-16 09:25:01,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:01,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271397343] [2023-12-16 09:25:01,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:01,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:01,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:01,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:01,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 09:25:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:01,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:25:01,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:02,247 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-16 09:25:02,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:25:02,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271397343] [2023-12-16 09:25:02,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271397343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:25:02,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:25:02,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:25:02,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956153812] [2023-12-16 09:25:02,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:02,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:25:02,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:02,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:25:02,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:25:02,253 INFO L87 Difference]: Start difference. First operand 1071 states and 1326 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:04,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:04,476 INFO L93 Difference]: Finished difference Result 1785 states and 2286 transitions. [2023-12-16 09:25:04,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:25:04,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 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 206 [2023-12-16 09:25:04,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:04,480 INFO L225 Difference]: With dead ends: 1785 [2023-12-16 09:25:04,480 INFO L226 Difference]: Without dead ends: 1071 [2023-12-16 09:25:04,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:25:04,481 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 73 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:04,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 121 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 09:25:04,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-16 09:25:04,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-16 09:25:04,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.233644859813084) internal successors, (1320), 1070 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:04,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1320 transitions. [2023-12-16 09:25:04,496 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1320 transitions. Word has length 206 [2023-12-16 09:25:04,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:04,497 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1320 transitions. [2023-12-16 09:25:04,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:04,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1320 transitions. [2023-12-16 09:25:04,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-12-16 09:25:04,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:04,499 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:04,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 09:25:04,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:04,703 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:04,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:04,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1693144817, now seen corresponding path program 1 times [2023-12-16 09:25:04,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:04,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959509554] [2023-12-16 09:25:04,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:04,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:04,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:04,706 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:04,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 09:25:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:04,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:25:04,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:05,344 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 89 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-16 09:25:05,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:25:06,037 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-16 09:25:06,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:06,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959509554] [2023-12-16 09:25:06,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959509554] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 09:25:06,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 09:25:06,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 09:25:06,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969908013] [2023-12-16 09:25:06,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:06,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:25:06,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:06,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:25:06,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:25:06,039 INFO L87 Difference]: Start difference. First operand 1071 states and 1320 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 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) [2023-12-16 09:25:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:11,962 INFO L93 Difference]: Finished difference Result 2141 states and 2811 transitions. [2023-12-16 09:25:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:25:11,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 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 310 [2023-12-16 09:25:11,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:11,966 INFO L225 Difference]: With dead ends: 2141 [2023-12-16 09:25:11,966 INFO L226 Difference]: Without dead ends: 1427 [2023-12-16 09:25:11,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:25:11,967 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 134 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:11,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 55 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-16 09:25:11,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2023-12-16 09:25:11,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1427. [2023-12-16 09:25:11,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1426 states have (on average 1.2391304347826086) internal successors, (1767), 1426 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:11,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1767 transitions. [2023-12-16 09:25:11,985 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1767 transitions. Word has length 310 [2023-12-16 09:25:11,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:11,985 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 1767 transitions. [2023-12-16 09:25:11,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 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) [2023-12-16 09:25:11,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1767 transitions. [2023-12-16 09:25:11,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-12-16 09:25:11,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:11,988 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:12,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-16 09:25:12,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:12,192 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:12,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:12,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1922038223, now seen corresponding path program 1 times [2023-12-16 09:25:12,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:12,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433758331] [2023-12-16 09:25:12,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:12,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:12,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:12,195 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:12,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 09:25:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:12,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:25:12,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:12,674 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 89 proven. 159 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-16 09:25:12,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:25:13,179 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-16 09:25:13,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:13,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433758331] [2023-12-16 09:25:13,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433758331] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 09:25:13,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 09:25:13,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 09:25:13,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411138419] [2023-12-16 09:25:13,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:13,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:25:13,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:13,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:25:13,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:25:13,181 INFO L87 Difference]: Start difference. First operand 1427 states and 1767 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:19,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:19,073 INFO L93 Difference]: Finished difference Result 3209 states and 4152 transitions. [2023-12-16 09:25:19,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:25:19,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 322 [2023-12-16 09:25:19,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:19,083 INFO L225 Difference]: With dead ends: 3209 [2023-12-16 09:25:19,083 INFO L226 Difference]: Without dead ends: 2139 [2023-12-16 09:25:19,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:25:19,085 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:19,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 247 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-16 09:25:19,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-12-16 09:25:19,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2023-12-16 09:25:19,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.2464920486435922) internal successors, (2665), 2138 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:19,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2665 transitions. [2023-12-16 09:25:19,110 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2665 transitions. Word has length 322 [2023-12-16 09:25:19,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:19,110 INFO L495 AbstractCegarLoop]: Abstraction has 2139 states and 2665 transitions. [2023-12-16 09:25:19,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:19,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2665 transitions. [2023-12-16 09:25:19,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 09:25:19,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:19,113 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:19,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 09:25:19,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:19,318 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:19,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:19,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1617048311, now seen corresponding path program 1 times [2023-12-16 09:25:19,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:19,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954014507] [2023-12-16 09:25:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:19,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:19,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:19,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:19,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 09:25:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:19,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 09:25:19,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 3 proven. 277 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-16 09:25:20,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:25:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 251 proven. 29 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-16 09:25:27,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:27,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954014507] [2023-12-16 09:25:27,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954014507] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 09:25:27,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 09:25:27,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-16 09:25:27,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427681318] [2023-12-16 09:25:27,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 09:25:27,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 09:25:27,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:27,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 09:25:27,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 09:25:27,551 INFO L87 Difference]: Start difference. First operand 2139 states and 2665 transitions. Second operand has 8 states, 8 states have (on average 58.5) internal successors, (468), 7 states have internal predecessors, (468), 0 states have call successors, (0), 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... [2023-12-16 09:25:58,154 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:25:58,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 09:25:58,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-16 09:25:58,188 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 531 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:58,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 44 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 30.3s Time] [2023-12-16 09:25:58,189 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 09:25:58,190 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 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:25:58,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 09:25:58,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:58,391 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (2139states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (4200 states constructed, input type IntersectNwa). [2023-12-16 09:25:58,394 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:58,396 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 09:25:58,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:25:58 BoogieIcfgContainer [2023-12-16 09:25:58,397 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 09:25:58,397 INFO L158 Benchmark]: Toolchain (without parser) took 74616.77ms. Allocated memory was 376.4MB in the beginning and 528.5MB in the end (delta: 152.0MB). Free memory was 332.3MB in the beginning and 283.8MB in the end (delta: 48.4MB). Peak memory consumption was 201.4MB. Max. memory is 8.0GB. [2023-12-16 09:25:58,397 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 215.0MB. Free memory is still 163.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:25:58,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.90ms. Allocated memory is still 376.4MB. Free memory was 332.3MB in the beginning and 294.1MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-16 09:25:58,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.16ms. Allocated memory is still 376.4MB. Free memory was 294.1MB in the beginning and 287.7MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 09:25:58,398 INFO L158 Benchmark]: Boogie Preprocessor took 122.72ms. Allocated memory is still 376.4MB. Free memory was 287.7MB in the beginning and 280.9MB in the end (delta: 6.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 09:25:58,398 INFO L158 Benchmark]: RCFGBuilder took 2829.50ms. Allocated memory is still 376.4MB. Free memory was 280.5MB in the beginning and 221.0MB in the end (delta: 59.5MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2023-12-16 09:25:58,398 INFO L158 Benchmark]: TraceAbstraction took 70951.86ms. Allocated memory was 376.4MB in the beginning and 528.5MB in the end (delta: 152.0MB). Free memory was 219.9MB in the beginning and 283.8MB in the end (delta: -63.9MB). Peak memory consumption was 89.2MB. Max. memory is 8.0GB. [2023-12-16 09:25:58,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 215.0MB. Free memory is still 163.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 602.90ms. Allocated memory is still 376.4MB. Free memory was 332.3MB in the beginning and 294.1MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 105.16ms. Allocated memory is still 376.4MB. Free memory was 294.1MB in the beginning and 287.7MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 122.72ms. Allocated memory is still 376.4MB. Free memory was 287.7MB in the beginning and 280.9MB in the end (delta: 6.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2829.50ms. Allocated memory is still 376.4MB. Free memory was 280.5MB in the beginning and 221.0MB in the end (delta: 59.5MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. * TraceAbstraction took 70951.86ms. Allocated memory was 376.4MB in the beginning and 528.5MB in the end (delta: 152.0MB). Free memory was 219.9MB in the beginning and 283.8MB in the end (delta: -63.9MB). Peak memory consumption was 89.2MB. 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: 110]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 110). Cancelled while NwaCegarLoop was constructing difference of abstraction (2139states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (4200 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.9s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 56.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1364 SdHoareTripleChecker+Valid, 55.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1364 mSDsluCounter, 1122 SdHoareTripleChecker+Invalid, 49.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 733 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5557 IncrementalHoareTripleChecker+Invalid, 6290 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 733 mSolverCounterUnsat, 1058 mSDtfsCounter, 5557 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2503 GetRequests, 2484 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2139occurred in iteration=8, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 1544 NumberOfCodeBlocks, 1544 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2502 ConstructedInterpolants, 0 QuantifiedInterpolants, 12072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1916 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 1742/2342 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