/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/Problem17_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 09:41:16,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 09:41:16,319 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 09:41:16,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 09:41:16,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 09:41:16,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 09:41:16,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 09:41:16,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 09:41:16,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 09:41:16,351 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 09:41:16,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 09:41:16,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 09:41:16,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 09:41:16,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 09:41:16,353 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 09:41:16,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 09:41:16,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 09:41:16,353 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 09:41:16,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 09:41:16,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 09:41:16,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 09:41:16,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 09:41:16,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 09:41:16,355 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 09:41:16,355 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 09:41:16,355 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 09:41:16,355 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 09:41:16,355 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 09:41:16,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 09:41:16,356 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 09:41:16,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 09:41:16,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 09:41:16,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 09:41:16,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 09:41:16,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:41:16,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 09:41:16,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 09:41:16,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 09:41:16,357 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 09:41:16,357 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 09:41:16,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 09:41:16,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 09:41:16,358 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 09:41:16,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 09:41:16,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 09:41:16,358 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 09:41:16,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 09:41:16,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 09:41:16,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 09:41:16,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 09:41:16,553 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 09:41:16,560 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 09:41:16,561 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label19.c [2023-12-16 09:41:17,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 09:41:17,861 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 09:41:17,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label19.c [2023-12-16 09:41:17,879 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1bdf892b/a651320207be446fb83e926579ee936a/FLAGf1889c1c2 [2023-12-16 09:41:17,893 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1bdf892b/a651320207be446fb83e926579ee936a [2023-12-16 09:41:17,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 09:41:17,896 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 09:41:17,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 09:41:17,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 09:41:17,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 09:41:17,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:41:17" (1/1) ... [2023-12-16 09:41:17,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a56003a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:17, skipping insertion in model container [2023-12-16 09:41:17,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:41:17" (1/1) ... [2023-12-16 09:41:17,966 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 09:41:18,140 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/Problem17_label19.c[6359,6372] [2023-12-16 09:41:18,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:41:18,598 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 09:41:18,618 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/Problem17_label19.c[6359,6372] [2023-12-16 09:41:18,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:41:18,825 INFO L206 MainTranslator]: Completed translation [2023-12-16 09:41:18,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18 WrapperNode [2023-12-16 09:41:18,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 09:41:18,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 09:41:18,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 09:41:18,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 09:41:18,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:18,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:18,944 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2610 [2023-12-16 09:41:18,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 09:41:18,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 09:41:18,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 09:41:18,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 09:41:18,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:18,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:18,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:19,023 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 09:41:19,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:19,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:19,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:19,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:19,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:19,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:19,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 09:41:19,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 09:41:19,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 09:41:19,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 09:41:19,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (1/1) ... [2023-12-16 09:41:19,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:41:19,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 09:41:19,212 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 09:41:19,216 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 09:41:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 09:41:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 09:41:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 09:41:19,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 09:41:19,313 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 09:41:19,317 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 09:41:48,250 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 09:41:48,284 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 09:41:48,284 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 09:41:48,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:41:48 BoogieIcfgContainer [2023-12-16 09:41:48,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 09:41:48,288 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 09:41:48,288 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 09:41:48,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 09:41:48,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:41:17" (1/3) ... [2023-12-16 09:41:48,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7e00fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:41:48, skipping insertion in model container [2023-12-16 09:41:48,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:41:18" (2/3) ... [2023-12-16 09:41:48,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7e00fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:41:48, skipping insertion in model container [2023-12-16 09:41:48,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:41:48" (3/3) ... [2023-12-16 09:41:48,292 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label19.c [2023-12-16 09:41:48,303 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 09:41:48,303 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 09:41:48,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 09:41:48,355 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;@32b186a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 09:41:48,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 09:41:48,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states 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 09:41:48,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-16 09:41:48,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:41:48,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:41:48,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:41:48,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:41:48,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1792805393, now seen corresponding path program 1 times [2023-12-16 09:41:48,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:41:48,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455647441] [2023-12-16 09:41:48,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:41:48,386 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 09:41:48,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:41:48,392 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 09:41:48,416 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 09:41:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:41:48,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 09:41:48,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:41:48,478 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 09:41:48,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:41:48,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:41:48,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455647441] [2023-12-16 09:41:48,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455647441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:41:48,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:41:48,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:41:48,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710995467] [2023-12-16 09:41:48,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:41:48,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 09:41:48,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:41:48,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 09:41:48,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:41:48,513 INFO L87 Difference]: Start difference. First operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 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 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:41:48,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:41:48,558 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2023-12-16 09:41:48,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 09:41:48,561 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-12-16 09:41:48,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:41:48,570 INFO L225 Difference]: With dead ends: 1055 [2023-12-16 09:41:48,570 INFO L226 Difference]: Without dead ends: 526 [2023-12-16 09:41:48,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 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 09:41:48,575 INFO L413 NwaCegarLoop]: 935 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, 935 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 09:41:48,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 09:41:48,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-16 09:41:48,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-12-16 09:41:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.7809523809523808) internal successors, (935), 525 states have internal predecessors, (935), 0 states have call successors, (0), 0 states 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 09:41:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2023-12-16 09:41:48,616 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 41 [2023-12-16 09:41:48,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:41:48,616 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2023-12-16 09:41:48,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:41:48,616 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2023-12-16 09:41:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-16 09:41:48,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:41:48,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:41:48,622 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 09:41:48,824 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 09:41:48,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:41:48,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:41:48,825 INFO L85 PathProgramCache]: Analyzing trace with hash 182280162, now seen corresponding path program 1 times [2023-12-16 09:41:48,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:41:48,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763201111] [2023-12-16 09:41:48,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:41:48,826 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 09:41:48,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:41:48,827 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 09:41:48,829 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 09:41:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:41:48,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:41:48,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:41:48,992 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 09:41:48,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:41:48,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:41:48,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763201111] [2023-12-16 09:41:48,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763201111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:41:48,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:41:48,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:41:48,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643877632] [2023-12-16 09:41:48,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:41:48,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:41:48,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:41:48,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:41:48,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:41:48,995 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:42:25,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:42:25,870 INFO L93 Difference]: Finished difference Result 1498 states and 2695 transitions. [2023-12-16 09:42:25,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:42:25,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-12-16 09:42:25,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:42:25,874 INFO L225 Difference]: With dead ends: 1498 [2023-12-16 09:42:25,874 INFO L226 Difference]: Without dead ends: 973 [2023-12-16 09:42:25,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 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 09:42:25,882 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 427 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2023-12-16 09:42:25,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 447 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 36.7s Time] [2023-12-16 09:42:25,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2023-12-16 09:42:25,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 964. [2023-12-16 09:42:25,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 963 states have (on average 1.5545171339563864) internal successors, (1497), 963 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states 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 09:42:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1497 transitions. [2023-12-16 09:42:25,912 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1497 transitions. Word has length 41 [2023-12-16 09:42:25,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:42:25,912 INFO L495 AbstractCegarLoop]: Abstraction has 964 states and 1497 transitions. [2023-12-16 09:42:25,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:42:25,912 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1497 transitions. [2023-12-16 09:42:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 09:42:25,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:42:25,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:42:25,916 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 (3)] Ended with exit code 0 [2023-12-16 09:42:26,117 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 09:42:26,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:42:26,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:42:26,118 INFO L85 PathProgramCache]: Analyzing trace with hash -152896246, now seen corresponding path program 1 times [2023-12-16 09:42:26,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:42:26,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080814016] [2023-12-16 09:42:26,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:42:26,119 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 09:42:26,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:42:26,120 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 09:42:26,137 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 09:42:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:42:26,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:42:26,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:42:26,891 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:42:26,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:42:26,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:42:26,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080814016] [2023-12-16 09:42:26,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080814016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:42:26,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:42:26,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:42:26,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700080279] [2023-12-16 09:42:26,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:42:26,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:42:26,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:42:26,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:42:26,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:42:26,893 INFO L87 Difference]: Start difference. First operand 964 states and 1497 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 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 09:42:33,153 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:42:33,171 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 09:42:33,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:42:33,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 09:42:33,192 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 122 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-16 09:42:33,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 54 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-16 09:42:33,193 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 09:42:33,203 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 09:42:33,399 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 09:42:33,400 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (964states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (538 states constructed, input type IntersectNwa). [2023-12-16 09:42:33,403 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 09:42:33,405 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 09:42:33,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:42:33 BoogieIcfgContainer [2023-12-16 09:42:33,407 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 09:42:33,407 INFO L158 Benchmark]: Toolchain (without parser) took 75511.36ms. Allocated memory was 199.2MB in the beginning and 406.8MB in the end (delta: 207.6MB). Free memory was 126.5MB in the beginning and 204.3MB in the end (delta: -77.8MB). Peak memory consumption was 131.3MB. Max. memory is 8.0GB. [2023-12-16 09:42:33,407 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:42:33,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 928.22ms. Allocated memory was 199.2MB in the beginning and 261.1MB in the end (delta: 61.9MB). Free memory was 126.4MB in the beginning and 145.7MB in the end (delta: -19.3MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. [2023-12-16 09:42:33,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.68ms. Allocated memory is still 261.1MB. Free memory was 145.7MB in the beginning and 122.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 09:42:33,408 INFO L158 Benchmark]: Boogie Preprocessor took 238.50ms. Allocated memory is still 261.1MB. Free memory was 122.1MB in the beginning and 192.2MB in the end (delta: -70.1MB). Peak memory consumption was 39.5MB. Max. memory is 8.0GB. [2023-12-16 09:42:33,408 INFO L158 Benchmark]: RCFGBuilder took 29102.95ms. Allocated memory was 261.1MB in the beginning and 406.8MB in the end (delta: 145.8MB). Free memory was 192.2MB in the beginning and 311.7MB in the end (delta: -119.5MB). Peak memory consumption was 158.3MB. Max. memory is 8.0GB. [2023-12-16 09:42:33,409 INFO L158 Benchmark]: TraceAbstraction took 45118.72ms. Allocated memory is still 406.8MB. Free memory was 311.2MB in the beginning and 204.3MB in the end (delta: 107.0MB). Peak memory consumption was 107.0MB. Max. memory is 8.0GB. [2023-12-16 09:42:33,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 928.22ms. Allocated memory was 199.2MB in the beginning and 261.1MB in the end (delta: 61.9MB). Free memory was 126.4MB in the beginning and 145.7MB in the end (delta: -19.3MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 117.68ms. Allocated memory is still 261.1MB. Free memory was 145.7MB in the beginning and 122.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 238.50ms. Allocated memory is still 261.1MB. Free memory was 122.1MB in the beginning and 192.2MB in the end (delta: -70.1MB). Peak memory consumption was 39.5MB. Max. memory is 8.0GB. * RCFGBuilder took 29102.95ms. Allocated memory was 261.1MB in the beginning and 406.8MB in the end (delta: 145.8MB). Free memory was 192.2MB in the beginning and 311.7MB in the end (delta: -119.5MB). Peak memory consumption was 158.3MB. Max. memory is 8.0GB. * TraceAbstraction took 45118.72ms. Allocated memory is still 406.8MB. Free memory was 311.2MB in the beginning and 204.3MB in the end (delta: 107.0MB). Peak memory consumption was 107.0MB. 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: 144]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 144). Cancelled while NwaCegarLoop was constructing difference of abstraction (964states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (538 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 528 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.1s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 43.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 549 SdHoareTripleChecker+Valid, 43.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 549 mSDsluCounter, 1436 SdHoareTripleChecker+Invalid, 35.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 333 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1726 IncrementalHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 333 mSolverCounterUnsat, 1355 mSDtfsCounter, 1726 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=964occurred in iteration=2, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 475 SizeOfPredicates, 0 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 39/39 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