/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.lann.8.prop1-func-interl.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-26 11:55:22,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-26 11:55:22,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-12-26 11:55:22,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-26 11:55:22,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-26 11:55:22,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-26 11:55:22,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-26 11:55:22,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-26 11:55:22,715 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-26 11:55:22,718 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-26 11:55:22,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-26 11:55:22,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-26 11:55:22,719 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-26 11:55:22,720 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-26 11:55:22,721 INFO L153 SettingsManager]: * Use SBE=true [2023-12-26 11:55:22,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-26 11:55:22,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-26 11:55:22,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-26 11:55:22,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-26 11:55:22,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-26 11:55:22,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-26 11:55:22,723 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-26 11:55:22,723 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-26 11:55:22,724 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-26 11:55:22,724 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-26 11:55:22,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-26 11:55:22,724 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-26 11:55:22,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-26 11:55:22,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-26 11:55:22,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-26 11:55:22,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-26 11:55:22,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 11:55:22,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-26 11:55:22,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-26 11:55:22,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-26 11:55:22,727 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-26 11:55:22,727 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-26 11:55:22,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-26 11:55:22,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-26 11:55:22,727 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-26 11:55:22,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-26 11:55:22,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-26 11:55:22,728 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-26 11:55:22,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-26 11:55:22,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-26 11:55:22,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-26 11:55:22,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-26 11:55:22,992 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-26 11:55:22,993 INFO L274 PluginConnector]: CDTParser initialized [2023-12-26 11:55:22,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.lann.8.prop1-func-interl.c [2023-12-26 11:55:24,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-26 11:55:24,522 INFO L384 CDTParser]: Found 1 translation units. [2023-12-26 11:55:24,523 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.lann.8.prop1-func-interl.c [2023-12-26 11:55:24,548 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cce58dae/86c530d29e4b45f38c922a5ea2950d9b/FLAGfc0e65501 [2023-12-26 11:55:24,565 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cce58dae/86c530d29e4b45f38c922a5ea2950d9b [2023-12-26 11:55:24,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-26 11:55:24,568 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-26 11:55:24,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-26 11:55:24,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-26 11:55:24,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-26 11:55:24,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:55:24" (1/1) ... [2023-12-26 11:55:24,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d260565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:24, skipping insertion in model container [2023-12-26 11:55:24,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:55:24" (1/1) ... [2023-12-26 11:55:24,651 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-26 11:55:24,830 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.lann.8.prop1-func-interl.c[1171,1184] [2023-12-26 11:55:25,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 11:55:25,268 INFO L202 MainTranslator]: Completed pre-run [2023-12-26 11:55:25,278 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.lann.8.prop1-func-interl.c[1171,1184] [2023-12-26 11:55:25,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 11:55:25,420 INFO L206 MainTranslator]: Completed translation [2023-12-26 11:55:25,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25 WrapperNode [2023-12-26 11:55:25,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-26 11:55:25,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-26 11:55:25,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-26 11:55:25,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-26 11:55:25,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,483 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,613 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3039 [2023-12-26 11:55:25,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-26 11:55:25,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-26 11:55:25,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-26 11:55:25,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-26 11:55:25,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,654 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,715 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]. [2023-12-26 11:55:25,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-26 11:55:25,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-26 11:55:25,900 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-26 11:55:25,900 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-26 11:55:25,901 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (1/1) ... [2023-12-26 11:55:25,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 11:55:25,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-26 11:55:25,931 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) [2023-12-26 11:55:25,957 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 [2023-12-26 11:55:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-26 11:55:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-26 11:55:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-26 11:55:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-26 11:55:26,433 INFO L241 CfgBuilder]: Building ICFG [2023-12-26 11:55:26,434 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-26 11:55:30,415 INFO L282 CfgBuilder]: Performing block encoding [2023-12-26 11:55:30,521 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-26 11:55:30,522 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-26 11:55:30,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:55:30 BoogieIcfgContainer [2023-12-26 11:55:30,522 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-26 11:55:30,524 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-26 11:55:30,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-26 11:55:30,527 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-26 11:55:30,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:55:24" (1/3) ... [2023-12-26 11:55:30,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab183ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:55:30, skipping insertion in model container [2023-12-26 11:55:30,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:55:25" (2/3) ... [2023-12-26 11:55:30,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab183ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:55:30, skipping insertion in model container [2023-12-26 11:55:30,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:55:30" (3/3) ... [2023-12-26 11:55:30,530 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lann.8.prop1-func-interl.c [2023-12-26 11:55:30,545 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-26 11:55:30,545 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-26 11:55:30,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-26 11:55:30,595 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;@57726186, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-26 11:55:30,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-26 11:55:30,610 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) [2023-12-26 11:55:30,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-26 11:55:30,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 11:55:30,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-26 11:55:30,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 11:55:30,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 11:55:30,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-26 11:55:30,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 11:55:30,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709659719] [2023-12-26 11:55:30,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 11:55:30,636 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 [2023-12-26 11:55:30,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 11:55:30,639 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) [2023-12-26 11:55:30,660 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 [2023-12-26 11:55:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 11:55:31,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-26 11:55:31,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 11:55:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 11:55:31,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-26 11:55:31,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 11:55:31,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709659719] [2023-12-26 11:55:31,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709659719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-26 11:55:31,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-26 11:55:31,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-26 11:55:31,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102375210] [2023-12-26 11:55:31,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-26 11:55:31,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-26 11:55:31,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 11:55:31,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-26 11:55:31,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-26 11:55:31,738 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) [2023-12-26 11:55:32,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 11:55:32,078 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-26 11:55:32,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-26 11:55:32,080 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 [2023-12-26 11:55:32,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 11:55:32,086 INFO L225 Difference]: With dead ends: 16 [2023-12-26 11:55:32,086 INFO L226 Difference]: Without dead ends: 9 [2023-12-26 11:55:32,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-26 11:55:32,092 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2023-12-26 11:55:32,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-26 11:55:32,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-26 11:55:32,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-26 11:55:32,117 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) [2023-12-26 11:55:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-26 11:55:32,118 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-26 11:55:32,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 11:55:32,118 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-26 11:55:32,118 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) [2023-12-26 11:55:32,118 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-26 11:55:32,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-26 11:55:32,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 11:55:32,119 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-26 11:55:32,123 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 [2023-12-26 11:55:32,319 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 [2023-12-26 11:55:32,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 11:55:32,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 11:55:32,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-26 11:55:32,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 11:55:32,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413870047] [2023-12-26 11:55:32,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 11:55:32,324 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 [2023-12-26 11:55:32,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 11:55:32,325 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) [2023-12-26 11:55:32,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-26 11:55:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 11:55:35,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 255 conjunts are in the unsatisfiable core [2023-12-26 11:55:35,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 11:55:39,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 11:55:39,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 11:56:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 11:56:24,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 11:56:24,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413870047] [2023-12-26 11:56:24,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413870047] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-26 11:56:24,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 11:56:24,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-26 11:56:24,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083998118] [2023-12-26 11:56:24,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 11:56:24,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-26 11:56:24,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 11:56:24,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-26 11:56:24,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-26 11:56:24,457 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) [2023-12-26 11:56:27,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-26 11:56:29,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-26 11:56:32,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-26 11:56:32,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 11:56:32,811 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-26 11:56:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-26 11:56:32,811 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 [2023-12-26 11:56:32,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 11:56:32,812 INFO L225 Difference]: With dead ends: 14 [2023-12-26 11:56:32,812 INFO L226 Difference]: Without dead ends: 12 [2023-12-26 11:56:32,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 32.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-12-26 11:56:32,813 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s 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, 4.9s IncrementalHoareTripleChecker+Time [2023-12-26 11:56:32,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-26 11:56:32,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-26 11:56:32,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-12-26 11:56:32,819 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) [2023-12-26 11:56:32,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-26 11:56:32,819 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-12-26 11:56:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 11:56:32,819 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-26 11:56:32,819 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) [2023-12-26 11:56:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-26 11:56:32,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-26 11:56:32,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 11:56:32,820 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-12-26 11:56:32,839 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 [2023-12-26 11:56:33,033 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 [2023-12-26 11:56:33,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 11:56:33,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 11:56:33,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-12-26 11:56:33,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 11:56:33,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444759033] [2023-12-26 11:56:33,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-26 11:56:33,038 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 [2023-12-26 11:56:33,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 11:56:33,039 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) [2023-12-26 11:56:33,043 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 [2023-12-26 11:56:40,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-26 11:56:40,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 11:56:40,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 4803 conjuncts, 536 conjunts are in the unsatisfiable core [2023-12-26 11:56:40,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 11:57:41,655 WARN L293 SmtUtils]: Spent 16.61s on a formula simplification that was a NOOP. DAG size: 2843 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-26 11:58:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 11:58:02,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 12:04:34,649 WARN L293 SmtUtils]: Spent 1.66m on a formula simplification that was a NOOP. DAG size: 2385 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-26 12:09:37,405 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 [2023-12-26 12:09:37,405 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 [2023-12-26 12:09:37,501 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-26 12:09:37,536 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 [2023-12-26 12:09:37,711 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 [2023-12-26 12:09:37,712 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 11 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-3-1 context. [2023-12-26 12:09:37,715 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-12-26 12:09:37,717 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-26 12:09:37,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 12:09:37 BoogieIcfgContainer [2023-12-26 12:09:37,719 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-26 12:09:37,721 INFO L158 Benchmark]: Toolchain (without parser) took 853152.30ms. Allocated memory was 180.4MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 132.9MB in the beginning and 1.0GB in the end (delta: -871.8MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-26 12:09:37,721 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory was 134.6MB in the beginning and 134.5MB in the end (delta: 90.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-26 12:09:37,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.85ms. Allocated memory is still 180.4MB. Free memory was 132.6MB in the beginning and 98.2MB in the end (delta: 34.3MB). Peak memory consumption was 49.0MB. Max. memory is 8.0GB. [2023-12-26 12:09:37,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 191.52ms. Allocated memory is still 180.4MB. Free memory was 98.2MB in the beginning and 76.2MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-26 12:09:37,722 INFO L158 Benchmark]: Boogie Preprocessor took 284.86ms. Allocated memory was 180.4MB in the beginning and 248.5MB in the end (delta: 68.2MB). Free memory was 76.2MB in the beginning and 200.2MB in the end (delta: -124.0MB). Peak memory consumption was 40.1MB. Max. memory is 8.0GB. [2023-12-26 12:09:37,722 INFO L158 Benchmark]: RCFGBuilder took 4622.49ms. Allocated memory was 248.5MB in the beginning and 443.5MB in the end (delta: 195.0MB). Free memory was 200.2MB in the beginning and 346.9MB in the end (delta: -146.7MB). Peak memory consumption was 225.0MB. Max. memory is 8.0GB. [2023-12-26 12:09:37,723 INFO L158 Benchmark]: TraceAbstraction took 847195.81ms. Allocated memory was 443.5MB in the beginning and 2.3GB in the end (delta: 1.8GB). Free memory was 346.3MB in the beginning and 1.0GB in the end (delta: -658.4MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-26 12:09:37,724 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory was 134.6MB in the beginning and 134.5MB in the end (delta: 90.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 849.85ms. Allocated memory is still 180.4MB. Free memory was 132.6MB in the beginning and 98.2MB in the end (delta: 34.3MB). Peak memory consumption was 49.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 191.52ms. Allocated memory is still 180.4MB. Free memory was 98.2MB in the beginning and 76.2MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 284.86ms. Allocated memory was 180.4MB in the beginning and 248.5MB in the end (delta: 68.2MB). Free memory was 76.2MB in the beginning and 200.2MB in the end (delta: -124.0MB). Peak memory consumption was 40.1MB. Max. memory is 8.0GB. * RCFGBuilder took 4622.49ms. Allocated memory was 248.5MB in the beginning and 443.5MB in the end (delta: 195.0MB). Free memory was 200.2MB in the beginning and 346.9MB in the end (delta: -146.7MB). Peak memory consumption was 225.0MB. Max. memory is 8.0GB. * TraceAbstraction took 847195.81ms. Allocated memory was 443.5MB in the beginning and 2.3GB in the end (delta: 1.8GB). Free memory was 346.3MB in the beginning and 1.0GB in the end (delta: -658.4MB). Peak memory consumption was 1.4GB. 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 11 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-3-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 847.1s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 4 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 32.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, InterpolantAutomatonStates: 11, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 49.5s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 5 QuantifiedInterpolants, 66343 SizeOfPredicates, 374 NumberOfNonLiveVariables, 2697 ConjunctsInSsa, 306 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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