/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-64bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.protocols.2.prop1-func-interl.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 22:20:22,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 22:20:22,871 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-12-16 22:20:22,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 22:20:22,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 22:20:22,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 22:20:22,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 22:20:22,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 22:20:22,908 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 22:20:22,911 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 22:20:22,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 22:20:22,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 22:20:22,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 22:20:22,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 22:20:22,912 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 22:20:22,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 22:20:22,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 22:20:22,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 22:20:22,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 22:20:22,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 22:20:22,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 22:20:22,914 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 22:20:22,914 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 22:20:22,914 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 22:20:22,914 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 22:20:22,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 22:20:22,914 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 22:20:22,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 22:20:22,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 22:20:22,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 22:20:22,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 22:20:22,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 22:20:22,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 22:20:22,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 22:20:22,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 22:20:22,921 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 22:20:22,921 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 22:20:22,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 22:20:22,921 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 22:20:22,921 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 22:20:22,921 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 22:20:22,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 22:20:22,922 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 22:20:22,922 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 22:20:23,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 22:20:23,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 22:20:23,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 22:20:23,180 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 22:20:23,181 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 22:20:23,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.protocols.2.prop1-func-interl.c [2023-12-16 22:20:24,174 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 22:20:24,379 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 22:20:24,380 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.protocols.2.prop1-func-interl.c [2023-12-16 22:20:24,394 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f187dd0d0/d39681b6563f4fffb08c2ee4d453b9a3/FLAGe488f1e08 [2023-12-16 22:20:24,404 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f187dd0d0/d39681b6563f4fffb08c2ee4d453b9a3 [2023-12-16 22:20:24,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 22:20:24,407 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 22:20:24,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 22:20:24,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 22:20:24,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 22:20:24,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:24,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@172524d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24, skipping insertion in model container [2023-12-16 22:20:24,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:24,460 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 22:20:24,575 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.protocols.2.prop1-func-interl.c[1176,1189] [2023-12-16 22:20:24,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 22:20:24,756 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 22:20:24,773 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.protocols.2.prop1-func-interl.c[1176,1189] [2023-12-16 22:20:24,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 22:20:24,846 INFO L206 MainTranslator]: Completed translation [2023-12-16 22:20:24,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24 WrapperNode [2023-12-16 22:20:24,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 22:20:24,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 22:20:24,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 22:20:24,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 22:20:24,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:24,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:24,922 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1135 [2023-12-16 22:20:24,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 22:20:24,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 22:20:24,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 22:20:24,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 22:20:24,934 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:24,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:24,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:24,975 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 22:20:24,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:24,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:24,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:25,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:25,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:25,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:25,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 22:20:25,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 22:20:25,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 22:20:25,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 22:20:25,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (1/1) ... [2023-12-16 22:20:25,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 22:20:25,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 22:20:25,084 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 22:20:25,103 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 22:20:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 22:20:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 22:20:25,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 22:20:25,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 22:20:25,313 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 22:20:25,314 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 22:20:26,226 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 22:20:26,276 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 22:20:26,277 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 22:20:26,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:20:26 BoogieIcfgContainer [2023-12-16 22:20:26,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 22:20:26,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 22:20:26,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 22:20:26,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 22:20:26,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 10:20:24" (1/3) ... [2023-12-16 22:20:26,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46daef28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:20:26, skipping insertion in model container [2023-12-16 22:20:26,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:20:24" (2/3) ... [2023-12-16 22:20:26,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46daef28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:20:26, skipping insertion in model container [2023-12-16 22:20:26,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:20:26" (3/3) ... [2023-12-16 22:20:26,284 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.protocols.2.prop1-func-interl.c [2023-12-16 22:20:26,297 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 22:20:26,297 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 22:20:26,332 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 22:20:26,337 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;@3050d687, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 22:20:26,338 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 22:20:26,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 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 22:20:26,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-16 22:20:26,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 22:20:26,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-16 22:20:26,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 22:20:26,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 22:20:26,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-16 22:20:26,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 22:20:26,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656465176] [2023-12-16 22:20:26,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 22:20:26,369 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 22:20:26,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 22:20:26,371 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 22:20:26,372 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 22:20:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 22:20:26,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 22:20:26,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 22:20:26,687 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 22:20:26,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 22:20:26,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 22:20:26,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656465176] [2023-12-16 22:20:26,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656465176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 22:20:26,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 22:20:26,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 22:20:26,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379515022] [2023-12-16 22:20:26,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 22:20:26,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 22:20:26,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 22:20:26,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 22:20:26,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 22:20:26,719 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 22:20:26,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 22:20:26,859 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-16 22:20:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 22:20:26,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2023-12-16 22:20:26,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 22:20:26,866 INFO L225 Difference]: With dead ends: 16 [2023-12-16 22:20:26,867 INFO L226 Difference]: Without dead ends: 9 [2023-12-16 22:20:26,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 22:20:26,871 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 22:20:26,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 22:20:26,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-16 22:20:26,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-16 22:20:26,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 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 22:20:26,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-16 22:20:26,894 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-16 22:20:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 22:20:26,894 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-16 22:20:26,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 22:20:26,894 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-16 22:20:26,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 22:20:26,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 22:20:26,895 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-16 22:20:26,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 22:20:27,100 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 22:20:27,100 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 22:20:27,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 22:20:27,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-16 22:20:27,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 22:20:27,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875204870] [2023-12-16 22:20:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 22:20:27,103 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 22:20:27,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 22:20:27,104 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 22:20:27,136 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 22:20:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 22:20:27,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 74 conjunts are in the unsatisfiable core [2023-12-16 22:20:27,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 22:20:27,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 22:20:27,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 22:20:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 22:20:28,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 22:20:28,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875204870] [2023-12-16 22:20:28,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875204870] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 22:20:28,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 22:20:28,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-16 22:20:28,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187349635] [2023-12-16 22:20:28,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 22:20:28,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 22:20:28,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 22:20:28,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 22:20:28,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 22:20:28,100 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 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 22:20:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 22:20:28,417 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-16 22:20:28,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 22:20:28,417 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 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 7 [2023-12-16 22:20:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 22:20:28,418 INFO L225 Difference]: With dead ends: 14 [2023-12-16 22:20:28,418 INFO L226 Difference]: Without dead ends: 12 [2023-12-16 22:20:28,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-12-16 22:20:28,419 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 22:20:28,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 22:20:28,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-16 22:20:28,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-12-16 22:20:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 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 22:20:28,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-16 22:20:28,422 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-12-16 22:20:28,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 22:20:28,423 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-16 22:20:28,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 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 22:20:28,423 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-16 22:20:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-16 22:20:28,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 22:20:28,423 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-12-16 22:20:28,431 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 22:20:28,629 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 22:20:28,629 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 22:20:28,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 22:20:28,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-12-16 22:20:28,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 22:20:28,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548735873] [2023-12-16 22:20:28,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 22:20:28,632 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 22:20:28,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 22:20:28,633 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 22:20:28,662 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 22:20:29,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 22:20:29,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 22:20:29,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 1709 conjuncts, 92 conjunts are in the unsatisfiable core [2023-12-16 22:20:29,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 22:20:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 22:20:29,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 22:20:34,217 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 22:20:34,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 22:20:34,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548735873] [2023-12-16 22:20:34,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548735873] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 22:20:34,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 22:20:34,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-16 22:20:34,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200956271] [2023-12-16 22:20:34,218 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 22:20:34,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 22:20:34,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 22:20:34,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 22:20:34,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=67, Unknown=1, NotChecked=0, Total=90 [2023-12-16 22:20:34,219 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 22:20:38,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 22:20:38,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 22:20:38,967 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-12-16 22:20:38,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 22:20:38,968 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-16 22:20:38,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 22:20:38,968 INFO L225 Difference]: With dead ends: 17 [2023-12-16 22:20:38,968 INFO L226 Difference]: Without dead ends: 15 [2023-12-16 22:20:38,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=67, Invalid=142, Unknown=1, NotChecked=0, Total=210 [2023-12-16 22:20:38,969 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-16 22:20:38,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2023-12-16 22:20:38,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-16 22:20:38,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-12-16 22:20:38,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 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 22:20:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-16 22:20:38,974 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2023-12-16 22:20:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 22:20:38,974 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-12-16 22:20:38,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 22:20:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-16 22:20:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-16 22:20:38,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 22:20:38,974 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2023-12-16 22:20:38,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 22:20:39,182 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 22:20:39,183 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 22:20:39,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 22:20:39,183 INFO L85 PathProgramCache]: Analyzing trace with hash -57678563, now seen corresponding path program 3 times [2023-12-16 22:20:39,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 22:20:39,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179790103] [2023-12-16 22:20:39,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 22:20:39,185 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 22:20:39,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 22:20:39,188 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 22:20:39,189 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 22:20:40,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-16 22:20:40,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 22:20:40,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 2514 conjuncts, 192 conjunts are in the unsatisfiable core [2023-12-16 22:20:40,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 22:20:42,749 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 22:20:42,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 22:21:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 22:21:02,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 22:21:02,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179790103] [2023-12-16 22:21:02,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179790103] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 22:21:02,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 22:21:02,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-16 22:21:02,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179604479] [2023-12-16 22:21:02,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 22:21:02,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 22:21:02,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 22:21:02,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 22:21:02,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=191, Unknown=3, NotChecked=0, Total=240 [2023-12-16 22:21:02,497 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 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 22:21:07,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 22:21:20,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 22:21:25,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 22:21:25,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 22:21:25,760 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2023-12-16 22:21:25,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 22:21:25,760 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 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 13 [2023-12-16 22:21:25,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 22:21:25,761 INFO L225 Difference]: With dead ends: 20 [2023-12-16 22:21:25,761 INFO L226 Difference]: Without dead ends: 18 [2023-12-16 22:21:25,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=126, Invalid=331, Unknown=5, NotChecked=0, Total=462 [2023-12-16 22:21:25,762 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-12-16 22:21:25,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 18 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 36 Invalid, 3 Unknown, 0 Unchecked, 12.8s Time] [2023-12-16 22:21:25,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-12-16 22:21:25,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-12-16 22:21:25,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 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 22:21:25,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-12-16 22:21:25,768 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2023-12-16 22:21:25,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 22:21:25,768 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-12-16 22:21:25,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 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 22:21:25,768 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-12-16 22:21:25,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-16 22:21:25,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 22:21:25,768 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1] [2023-12-16 22:21:25,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 22:21:25,980 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 22:21:25,981 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 22:21:25,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 22:21:25,981 INFO L85 PathProgramCache]: Analyzing trace with hash -310375345, now seen corresponding path program 4 times [2023-12-16 22:21:25,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 22:21:25,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028419900] [2023-12-16 22:21:25,983 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-16 22:21:25,983 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 22:21:25,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 22:21:25,984 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 22:21:25,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 22:21:27,152 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-16 22:21:27,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 22:21:27,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 3319 conjuncts, 243 conjunts are in the unsatisfiable core [2023-12-16 22:21:27,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 22:21:38,869 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 22:21:38,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 22:21:39,844 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 22:21:39,855 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 22:21:39,858 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 22:21:39,866 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 22:21:40,045 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 22:21:40,045 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 17 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 14 known predicates. [2023-12-16 22:21:40,048 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2023-12-16 22:21:40,050 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 22:21:40,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 10:21:40 BoogieIcfgContainer [2023-12-16 22:21:40,051 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 22:21:40,052 INFO L158 Benchmark]: Toolchain (without parser) took 75645.17ms. Allocated memory was 249.6MB in the beginning and 653.3MB in the end (delta: 403.7MB). Free memory was 200.6MB in the beginning and 316.0MB in the end (delta: -115.4MB). Peak memory consumption was 289.8MB. Max. memory is 8.0GB. [2023-12-16 22:21:40,052 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 199.2MB. Free memory was 154.0MB in the beginning and 153.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 22:21:40,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.25ms. Allocated memory is still 249.6MB. Free memory was 200.6MB in the beginning and 160.7MB in the end (delta: 39.8MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2023-12-16 22:21:40,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.57ms. Allocated memory is still 249.6MB. Free memory was 160.7MB in the beginning and 151.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 22:21:40,054 INFO L158 Benchmark]: Boogie Preprocessor took 107.64ms. Allocated memory is still 249.6MB. Free memory was 151.9MB in the beginning and 141.2MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 22:21:40,055 INFO L158 Benchmark]: RCFGBuilder took 1220.37ms. Allocated memory is still 249.6MB. Free memory was 216.6MB in the beginning and 128.6MB in the end (delta: 87.9MB). Peak memory consumption was 113.6MB. Max. memory is 8.0GB. [2023-12-16 22:21:40,055 INFO L158 Benchmark]: TraceAbstraction took 73772.71ms. Allocated memory was 249.6MB in the beginning and 653.3MB in the end (delta: 403.7MB). Free memory was 128.1MB in the beginning and 316.0MB in the end (delta: -187.9MB). Peak memory consumption was 215.9MB. Max. memory is 8.0GB. [2023-12-16 22:21:40,056 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 199.2MB. Free memory was 154.0MB in the beginning and 153.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 439.25ms. Allocated memory is still 249.6MB. Free memory was 200.6MB in the beginning and 160.7MB in the end (delta: 39.8MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.57ms. Allocated memory is still 249.6MB. Free memory was 160.7MB in the beginning and 151.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 107.64ms. Allocated memory is still 249.6MB. Free memory was 151.9MB in the beginning and 141.2MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1220.37ms. Allocated memory is still 249.6MB. Free memory was 216.6MB in the beginning and 128.6MB in the end (delta: 87.9MB). Peak memory consumption was 113.6MB. Max. memory is 8.0GB. * TraceAbstraction took 73772.71ms. Allocated memory was 249.6MB in the beginning and 653.3MB in the end (delta: 403.7MB). Free memory was 128.1MB in the beginning and 316.0MB in the end (delta: -187.9MB). Peak memory consumption was 215.9MB. 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: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 17 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 73.7s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 28.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 17.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 17.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 8 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 35.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=4, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 27.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 57 ConstructedInterpolants, 30 QuantifiedInterpolants, 9764 SizeOfPredicates, 457 NumberOfNonLiveVariables, 5226 ConjunctsInSsa, 373 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/48 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