/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/Problem11_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 09:08:22,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 09:08:22,443 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 09:08:22,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 09:08:22,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 09:08:22,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 09:08:22,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 09:08:22,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 09:08:22,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 09:08:22,483 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 09:08:22,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 09:08:22,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 09:08:22,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 09:08:22,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 09:08:22,485 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 09:08:22,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 09:08:22,486 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 09:08:22,486 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 09:08:22,486 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 09:08:22,487 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 09:08:22,487 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 09:08:22,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 09:08:22,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 09:08:22,492 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 09:08:22,494 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 09:08:22,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 09:08:22,495 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 09:08:22,495 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 09:08:22,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 09:08:22,495 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 09:08:22,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 09:08:22,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 09:08:22,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 09:08:22,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 09:08:22,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:08:22,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 09:08:22,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 09:08:22,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 09:08:22,498 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 09:08:22,498 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 09:08:22,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 09:08:22,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 09:08:22,504 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 09:08:22,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 09:08:22,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 09:08:22,505 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 09:08:22,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 09:08:22,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 09:08:22,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 09:08:22,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 09:08:22,770 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 09:08:22,771 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 09:08:22,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label28.c [2023-12-16 09:08:23,946 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 09:08:24,295 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 09:08:24,296 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label28.c [2023-12-16 09:08:24,318 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfab12e7d/6f584a5c4d364b649b0e74203bc974e2/FLAG26fab5928 [2023-12-16 09:08:24,333 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfab12e7d/6f584a5c4d364b649b0e74203bc974e2 [2023-12-16 09:08:24,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 09:08:24,337 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 09:08:24,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 09:08:24,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 09:08:24,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 09:08:24,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:08:24" (1/1) ... [2023-12-16 09:08:24,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a6940a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:24, skipping insertion in model container [2023-12-16 09:08:24,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:08:24" (1/1) ... [2023-12-16 09:08:24,406 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 09:08:24,604 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/Problem11_label28.c[6999,7012] [2023-12-16 09:08:24,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:08:24,868 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 09:08:24,913 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/Problem11_label28.c[6999,7012] [2023-12-16 09:08:25,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:08:25,103 INFO L206 MainTranslator]: Completed translation [2023-12-16 09:08:25,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25 WrapperNode [2023-12-16 09:08:25,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 09:08:25,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 09:08:25,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 09:08:25,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 09:08:25,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,231 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 998 [2023-12-16 09:08:25,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 09:08:25,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 09:08:25,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 09:08:25,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 09:08:25,243 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,257 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,299 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 09:08:25,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 09:08:25,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 09:08:25,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 09:08:25,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 09:08:25,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (1/1) ... [2023-12-16 09:08:25,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:08:25,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 09:08:25,399 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 09:08:25,416 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 09:08:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 09:08:25,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 09:08:25,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 09:08:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 09:08:25,489 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 09:08:25,491 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 09:08:33,600 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 09:08:33,646 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 09:08:33,646 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 09:08:33,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:08:33 BoogieIcfgContainer [2023-12-16 09:08:33,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 09:08:33,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 09:08:33,649 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 09:08:33,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 09:08:33,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:08:24" (1/3) ... [2023-12-16 09:08:33,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714ba1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:08:33, skipping insertion in model container [2023-12-16 09:08:33,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:08:25" (2/3) ... [2023-12-16 09:08:33,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714ba1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:08:33, skipping insertion in model container [2023-12-16 09:08:33,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:08:33" (3/3) ... [2023-12-16 09:08:33,654 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label28.c [2023-12-16 09:08:33,667 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 09:08:33,667 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 09:08:33,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 09:08:33,724 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;@32ac85e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 09:08:33,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 09:08:33,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 09:08:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-16 09:08:33,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:08:33,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:08:33,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:08:33,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:08:33,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1852641105, now seen corresponding path program 1 times [2023-12-16 09:08:33,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:08:33,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074422452] [2023-12-16 09:08:33,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:08:33,759 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 09:08:33,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:08:33,766 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 09:08:33,768 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 09:08:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:08:33,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 09:08:33,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:08:33,884 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 09:08:33,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:08:33,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:08:33,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074422452] [2023-12-16 09:08:33,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074422452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:08:33,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:08:33,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:08:33,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018573314] [2023-12-16 09:08:33,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:08:33,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 09:08:33,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:08:33,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 09:08:33,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:08:33,924 INFO L87 Difference]: Start difference. First operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 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 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:08:33,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:08:33,976 INFO L93 Difference]: Finished difference Result 441 states and 839 transitions. [2023-12-16 09:08:33,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 09:08:33,980 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2023-12-16 09:08:33,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:08:33,992 INFO L225 Difference]: With dead ends: 441 [2023-12-16 09:08:33,992 INFO L226 Difference]: Without dead ends: 219 [2023-12-16 09:08:33,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 46 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 09:08:33,998 INFO L413 NwaCegarLoop]: 355 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, 355 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 09:08:33,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 09:08:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-16 09:08:34,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-12-16 09:08:34,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.628440366972477) internal successors, (355), 218 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 09:08:34,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 355 transitions. [2023-12-16 09:08:34,068 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 355 transitions. Word has length 47 [2023-12-16 09:08:34,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:08:34,068 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 355 transitions. [2023-12-16 09:08:34,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:08:34,069 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 355 transitions. [2023-12-16 09:08:34,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-16 09:08:34,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:08:34,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:08:34,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 09:08:34,270 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 09:08:34,271 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:08:34,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:08:34,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1522204629, now seen corresponding path program 1 times [2023-12-16 09:08:34,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:08:34,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211744411] [2023-12-16 09:08:34,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:08:34,273 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 09:08:34,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:08:34,275 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 09:08:34,277 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 09:08:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:08:34,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:08:34,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:08:34,482 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 09:08:34,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:08:34,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:08:34,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211744411] [2023-12-16 09:08:34,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211744411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:08:34,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:08:34,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:08:34,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951659962] [2023-12-16 09:08:34,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:08:34,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:08:34,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:08:34,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:08:34,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:08:34,488 INFO L87 Difference]: Start difference. First operand 219 states and 355 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:08:41,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:08:41,889 INFO L93 Difference]: Finished difference Result 629 states and 1028 transitions. [2023-12-16 09:08:41,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:08:41,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2023-12-16 09:08:41,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:08:41,898 INFO L225 Difference]: With dead ends: 629 [2023-12-16 09:08:41,899 INFO L226 Difference]: Without dead ends: 411 [2023-12-16 09:08:41,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:08:41,901 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 158 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-16 09:08:41,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 144 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-16 09:08:41,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-12-16 09:08:41,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 408. [2023-12-16 09:08:41,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.4594594594594594) internal successors, (594), 407 states have internal predecessors, (594), 0 states have call successors, (0), 0 states 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 09:08:41,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 594 transitions. [2023-12-16 09:08:41,920 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 594 transitions. Word has length 47 [2023-12-16 09:08:41,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:08:41,920 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 594 transitions. [2023-12-16 09:08:41,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:08:41,921 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 594 transitions. [2023-12-16 09:08:41,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 09:08:41,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:08:41,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 09:08:41,928 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 09:08:42,127 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 09:08:42,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:08:42,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:08:42,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2035143027, now seen corresponding path program 1 times [2023-12-16 09:08:42,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:08:42,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052247406] [2023-12-16 09:08:42,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:08:42,130 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 09:08:42,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:08:42,131 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 09:08:42,139 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 09:08:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:08:42,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:08:42,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:08:42,420 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:08:42,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:08:42,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:08:42,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052247406] [2023-12-16 09:08:42,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052247406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:08:42,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:08:42,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:08:42,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922120965] [2023-12-16 09:08:42,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:08:42,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:08:42,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:08:42,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:08:42,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:08:42,423 INFO L87 Difference]: Start difference. First operand 408 states and 594 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 09:08:51,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:08:51,838 INFO L93 Difference]: Finished difference Result 1198 states and 1750 transitions. [2023-12-16 09:08:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:08:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2023-12-16 09:08:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:08:51,849 INFO L225 Difference]: With dead ends: 1198 [2023-12-16 09:08:51,850 INFO L226 Difference]: Without dead ends: 791 [2023-12-16 09:08:51,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 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 09:08:51,852 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 132 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-16 09:08:51,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 181 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-12-16 09:08:51,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2023-12-16 09:08:51,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 780. [2023-12-16 09:08:51,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 779 states have (on average 1.3478818998716302) internal successors, (1050), 779 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 09:08:51,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1050 transitions. [2023-12-16 09:08:51,883 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1050 transitions. Word has length 115 [2023-12-16 09:08:51,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:08:51,883 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1050 transitions. [2023-12-16 09:08:51,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 09:08:51,884 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1050 transitions. [2023-12-16 09:08:51,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 09:08:51,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:08:51,886 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 09:08:51,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 09:08:52,089 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 09:08:52,090 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:08:52,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:08:52,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2117575772, now seen corresponding path program 1 times [2023-12-16 09:08:52,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:08:52,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085168034] [2023-12-16 09:08:52,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:08:52,093 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 09:08:52,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:08:52,094 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 09:08:52,098 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 09:08:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:08:52,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:08:52,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:08:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:08:52,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:08:52,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:08:52,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085168034] [2023-12-16 09:08:52,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085168034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:08:52,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:08:52,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:08:52,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651216489] [2023-12-16 09:08:52,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:08:52,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:08:52,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:08:52,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:08:52,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:08:52,384 INFO L87 Difference]: Start difference. First operand 780 states and 1050 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:09:00,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:09:00,407 INFO L93 Difference]: Finished difference Result 1928 states and 2650 transitions. [2023-12-16 09:09:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:09:00,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2023-12-16 09:09:00,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:09:00,421 INFO L225 Difference]: With dead ends: 1928 [2023-12-16 09:09:00,421 INFO L226 Difference]: Without dead ends: 1149 [2023-12-16 09:09:00,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 09:09:00,423 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 148 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-12-16 09:09:00,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 152 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-12-16 09:09:00,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2023-12-16 09:09:00,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1149. [2023-12-16 09:09:00,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1148 states have (on average 1.2569686411149825) internal successors, (1443), 1148 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states 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 09:09:00,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1443 transitions. [2023-12-16 09:09:00,461 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1443 transitions. Word has length 118 [2023-12-16 09:09:00,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:09:00,462 INFO L495 AbstractCegarLoop]: Abstraction has 1149 states and 1443 transitions. [2023-12-16 09:09:00,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:09:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1443 transitions. [2023-12-16 09:09:00,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 09:09:00,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:09:00,469 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:09:00,478 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 09:09:00,675 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 09:09:00,675 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:09:00,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:09:00,676 INFO L85 PathProgramCache]: Analyzing trace with hash -28242364, now seen corresponding path program 1 times [2023-12-16 09:09:00,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:09:00,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657760346] [2023-12-16 09:09:00,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:09:00,677 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 09:09:00,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:09:00,679 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 09:09:00,681 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 09:09:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:09:00,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:09:00,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:09:00,883 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:09:00,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:09:00,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:09:00,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657760346] [2023-12-16 09:09:00,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657760346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:09:00,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:09:00,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:09:00,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729345722] [2023-12-16 09:09:00,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:09:00,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:09:00,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:09:00,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:09:00,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:09:00,888 INFO L87 Difference]: Start difference. First operand 1149 states and 1443 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states 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 09:09:08,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:09:08,457 INFO L93 Difference]: Finished difference Result 2313 states and 3054 transitions. [2023-12-16 09:09:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:09:08,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2023-12-16 09:09:08,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:09:08,467 INFO L225 Difference]: With dead ends: 2313 [2023-12-16 09:09:08,467 INFO L226 Difference]: Without dead ends: 1533 [2023-12-16 09:09:08,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 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 09:09:08,469 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 157 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-16 09:09:08,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 334 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-16 09:09:08,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2023-12-16 09:09:08,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1525. [2023-12-16 09:09:08,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 1.244750656167979) internal successors, (1897), 1524 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states 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 09:09:08,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1897 transitions. [2023-12-16 09:09:08,494 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1897 transitions. Word has length 174 [2023-12-16 09:09:08,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:09:08,494 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 1897 transitions. [2023-12-16 09:09:08,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states 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 09:09:08,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1897 transitions. [2023-12-16 09:09:08,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-12-16 09:09:08,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:09:08,498 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 09:09:08,502 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 09:09:08,701 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 09:09:08,701 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:09:08,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:09:08,702 INFO L85 PathProgramCache]: Analyzing trace with hash -538393875, now seen corresponding path program 1 times [2023-12-16 09:09:08,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:09:08,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965948520] [2023-12-16 09:09:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:09:08,703 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 09:09:08,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:09:08,704 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 09:09:08,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 09:09:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:09:08,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 09:09:08,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:09:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 91 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:09:09,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:09:11,982 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:09:11,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:09:11,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965948520] [2023-12-16 09:09:11,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965948520] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 09:09:11,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 09:09:11,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 09:09:11,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583033477] [2023-12-16 09:09:11,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:09:11,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:09:11,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:09:11,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:09:11,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:09:11,985 INFO L87 Difference]: Start difference. First operand 1525 states and 1897 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:09:25,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:09:25,306 INFO L93 Difference]: Finished difference Result 2676 states and 3521 transitions. [2023-12-16 09:09:25,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:09:25,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 228 [2023-12-16 09:09:25,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:09:25,320 INFO L225 Difference]: With dead ends: 2676 [2023-12-16 09:09:25,320 INFO L226 Difference]: Without dead ends: 2078 [2023-12-16 09:09:25,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 451 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 09:09:25,329 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 149 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-16 09:09:25,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 47 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2023-12-16 09:09:25,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2023-12-16 09:09:25,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 2078. [2023-12-16 09:09:25,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 2077 states have (on average 1.2696196437168994) internal successors, (2637), 2077 states have internal predecessors, (2637), 0 states have call successors, (0), 0 states 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 09:09:25,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 2637 transitions. [2023-12-16 09:09:25,366 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 2637 transitions. Word has length 228 [2023-12-16 09:09:25,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:09:25,367 INFO L495 AbstractCegarLoop]: Abstraction has 2078 states and 2637 transitions. [2023-12-16 09:09:25,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:09:25,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 2637 transitions. [2023-12-16 09:09:25,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 09:09:25,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:09:25,371 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 09:09:25,378 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 09:09:25,578 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 09:09:25,579 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:09:25,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:09:25,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1238248277, now seen corresponding path program 1 times [2023-12-16 09:09:25,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:09:25,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476496714] [2023-12-16 09:09:25,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:09:25,581 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 09:09:25,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:09:25,582 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 09:09:25,585 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 09:09:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:09:25,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 09:09:25,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:09:28,339 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 70 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:09:28,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 09:09:31,464 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:09:31,479 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 09:09:31,559 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 09:09:31,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 09:09:31,760 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 09:09:31,760 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 240 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-5-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ATOM-1 context. [2023-12-16 09:09:31,765 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:09:31,767 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 09:09:31,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:09:31 BoogieIcfgContainer [2023-12-16 09:09:31,769 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 09:09:31,769 INFO L158 Benchmark]: Toolchain (without parser) took 67432.07ms. Allocated memory was 280.0MB in the beginning and 361.8MB in the end (delta: 81.8MB). Free memory was 239.0MB in the beginning and 275.6MB in the end (delta: -36.6MB). Peak memory consumption was 45.8MB. Max. memory is 8.0GB. [2023-12-16 09:09:31,770 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 194.0MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:09:31,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 766.26ms. Allocated memory is still 280.0MB. Free memory was 239.0MB in the beginning and 185.5MB in the end (delta: 53.5MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2023-12-16 09:09:31,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 125.28ms. Allocated memory is still 280.0MB. Free memory was 185.5MB in the beginning and 176.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 09:09:31,770 INFO L158 Benchmark]: Boogie Preprocessor took 123.00ms. Allocated memory is still 280.0MB. Free memory was 176.6MB in the beginning and 166.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 09:09:31,771 INFO L158 Benchmark]: RCFGBuilder took 8290.45ms. Allocated memory is still 280.0MB. Free memory was 166.7MB in the beginning and 222.1MB in the end (delta: -55.4MB). Peak memory consumption was 75.6MB. Max. memory is 8.0GB. [2023-12-16 09:09:31,771 INFO L158 Benchmark]: TraceAbstraction took 58120.54ms. Allocated memory was 280.0MB in the beginning and 361.8MB in the end (delta: 81.8MB). Free memory was 221.6MB in the beginning and 275.6MB in the end (delta: -54.0MB). Peak memory consumption was 27.8MB. Max. memory is 8.0GB. [2023-12-16 09:09:31,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 194.0MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 766.26ms. Allocated memory is still 280.0MB. Free memory was 239.0MB in the beginning and 185.5MB in the end (delta: 53.5MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 125.28ms. Allocated memory is still 280.0MB. Free memory was 185.5MB in the beginning and 176.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 123.00ms. Allocated memory is still 280.0MB. Free memory was 176.6MB in the beginning and 166.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 8290.45ms. Allocated memory is still 280.0MB. Free memory was 166.7MB in the beginning and 222.1MB in the end (delta: -55.4MB). Peak memory consumption was 75.6MB. Max. memory is 8.0GB. * TraceAbstraction took 58120.54ms. Allocated memory was 280.0MB in the beginning and 361.8MB in the end (delta: 81.8MB). Free memory was 221.6MB in the beginning and 275.6MB in the end (delta: -54.0MB). Peak memory consumption was 27.8MB. 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: 160]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 160). Cancelled while NwaCegarLoop was analyzing trace of length 240 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-5-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.1s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 45.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 744 SdHoareTripleChecker+Valid, 45.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 744 mSDsluCounter, 1213 SdHoareTripleChecker+Invalid, 38.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102 mSDsCounter, 579 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2768 IncrementalHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 579 mSolverCounterUnsat, 1111 mSDtfsCounter, 2768 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 950 GetRequests, 943 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2078occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 729 NumberOfCodeBlocks, 729 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 950 ConstructedInterpolants, 0 QuantifiedInterpolants, 5317 SizeOfPredicates, 1 NumberOfNonLiveVariables, 986 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 385/453 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