/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc5 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 06:24:35,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 06:24:35,263 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 06:24:35,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 06:24:35,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 06:24:35,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 06:24:35,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 06:24:35,288 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 06:24:35,288 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 06:24:35,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 06:24:35,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 06:24:35,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 06:24:35,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 06:24:35,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 06:24:35,292 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 06:24:35,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 06:24:35,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 06:24:35,293 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 06:24:35,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 06:24:35,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 06:24:35,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 06:24:35,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 06:24:35,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 06:24:35,295 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 06:24:35,295 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 06:24:35,296 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 06:24:35,296 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 06:24:35,296 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 06:24:35,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 06:24:35,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 06:24:35,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 06:24:35,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 06:24:35,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 06:24:35,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 06:24:35,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 06:24:35,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 06:24:35,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 06:24:35,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 06:24:35,298 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 06:24:35,298 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 06:24:35,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 06:24:35,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 06:24:35,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 06:24:35,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 06:24:35,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:35,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 06:24:35,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 06:24:35,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 06:24:35,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 06:24:35,554 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 06:24:35,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2024-11-03 06:24:37,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 06:24:37,309 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 06:24:37,310 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2024-11-03 06:24:37,319 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e850f39eb/da28fbced6bf469b82aa4b82a4063206/FLAG7b7963815 [2024-11-03 06:24:37,335 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e850f39eb/da28fbced6bf469b82aa4b82a4063206 [2024-11-03 06:24:37,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 06:24:37,339 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 06:24:37,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 06:24:37,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 06:24:37,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 06:24:37,346 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e2ecdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37, skipping insertion in model container [2024-11-03 06:24:37,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,369 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 06:24:37,537 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c[1657,1670] [2024-11-03 06:24:37,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 06:24:37,552 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 06:24:37,574 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c[1657,1670] [2024-11-03 06:24:37,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 06:24:37,596 INFO L204 MainTranslator]: Completed translation [2024-11-03 06:24:37,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37 WrapperNode [2024-11-03 06:24:37,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 06:24:37,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 06:24:37,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 06:24:37,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 06:24:37,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,626 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-11-03 06:24:37,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 06:24:37,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 06:24:37,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 06:24:37,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 06:24:37,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,638 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,648 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-03 06:24:37,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,655 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 06:24:37,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 06:24:37,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 06:24:37,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 06:24:37,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (1/1) ... [2024-11-03 06:24:37,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 06:24:37,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 06:24:37,694 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) [2024-11-03 06:24:37,698 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 [2024-11-03 06:24:37,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 06:24:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 06:24:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 06:24:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-03 06:24:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 06:24:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2024-11-03 06:24:37,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2024-11-03 06:24:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 06:24:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 06:24:37,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-03 06:24:37,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 06:24:37,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 06:24:37,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-03 06:24:37,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-03 06:24:37,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-03 06:24:37,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 06:24:37,782 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 06:24:37,784 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 06:24:37,939 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-03 06:24:37,939 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 06:24:37,948 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 06:24:37,949 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-03 06:24:37,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:24:37 BoogieIcfgContainer [2024-11-03 06:24:37,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 06:24:37,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 06:24:37,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 06:24:37,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 06:24:37,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 06:24:37" (1/3) ... [2024-11-03 06:24:37,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403aeac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:24:37, skipping insertion in model container [2024-11-03 06:24:37,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:24:37" (2/3) ... [2024-11-03 06:24:37,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403aeac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:24:37, skipping insertion in model container [2024-11-03 06:24:37,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:24:37" (3/3) ... [2024-11-03 06:24:37,956 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232b.c [2024-11-03 06:24:37,969 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 06:24:37,969 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 06:24:38,020 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 06:24:38,025 INFO L333 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, 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;@fa41950, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 06:24:38,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 06:24:38,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:24:38,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-03 06:24:38,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:24:38,037 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:24:38,037 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:24:38,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:24:38,043 INFO L85 PathProgramCache]: Analyzing trace with hash 624090286, now seen corresponding path program 1 times [2024-11-03 06:24:38,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:24:38,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951424146] [2024-11-03 06:24:38,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:24:38,062 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:38,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:24:38,105 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:24:38,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 06:24:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:24:38,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 06:24:38,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:24:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:24:38,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:24:38,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:24:38,229 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:24:38,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951424146] [2024-11-03 06:24:38,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [951424146] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:24:38,229 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:24:38,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 06:24:38,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669355690] [2024-11-03 06:24:38,232 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:24:38,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 06:24:38,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:24:38,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 06:24:38,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 06:24:38,256 INFO L87 Difference]: Start difference. First operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-03 06:24:38,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:24:38,271 INFO L93 Difference]: Finished difference Result 51 states and 76 transitions. [2024-11-03 06:24:38,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 06:24:38,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-03 06:24:38,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:24:38,278 INFO L225 Difference]: With dead ends: 51 [2024-11-03 06:24:38,278 INFO L226 Difference]: Without dead ends: 24 [2024-11-03 06:24:38,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 06:24:38,285 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 06:24:38,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 06:24:38,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-03 06:24:38,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-03 06:24:38,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:24:38,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2024-11-03 06:24:38,315 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 13 [2024-11-03 06:24:38,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:24:38,316 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2024-11-03 06:24:38,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-03 06:24:38,316 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-11-03 06:24:38,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-03 06:24:38,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:24:38,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:24:38,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 06:24:38,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:38,522 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:24:38,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:24:38,523 INFO L85 PathProgramCache]: Analyzing trace with hash 181002929, now seen corresponding path program 1 times [2024-11-03 06:24:38,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:24:38,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451592579] [2024-11-03 06:24:38,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:24:38,523 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:38,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:24:38,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:24:38,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 06:24:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:24:38,583 WARN L253 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-03 06:24:38,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:24:38,684 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v___fpclassify_float_~#gf_u~0.base_6| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |v___fpclassify_float_~#gf_u~0.base_6| (_ bv0 1))) (= |c_#memory_int#1| (store |c_old(#memory_int#1)| |v___fpclassify_float_~#gf_u~0.base_6| (store (select |c_old(#memory_int#1)| |v___fpclassify_float_~#gf_u~0.base_6|) (_ bv0 32) (select (select |c_#memory_int#1| |v___fpclassify_float_~#gf_u~0.base_6|) (_ bv0 32))))) (= (store |c_old(#length)| |v___fpclassify_float_~#gf_u~0.base_6| (_ bv4 32)) |c_#length|))) is different from true [2024-11-03 06:24:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:24:38,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:24:38,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:24:38,980 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:24:38,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451592579] [2024-11-03 06:24:38,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [451592579] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:24:38,980 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:24:38,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 4] imperfect sequences [] total 9 [2024-11-03 06:24:38,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011656984] [2024-11-03 06:24:38,980 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:24:38,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 06:24:38,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:24:38,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 06:24:38,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=42, Unknown=1, NotChecked=12, Total=72 [2024-11-03 06:24:38,985 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:24:39,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:24:39,120 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2024-11-03 06:24:39,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 06:24:39,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-03 06:24:39,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:24:39,122 INFO L225 Difference]: With dead ends: 39 [2024-11-03 06:24:39,122 INFO L226 Difference]: Without dead ends: 30 [2024-11-03 06:24:39,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=66, Unknown=1, NotChecked=16, Total=110 [2024-11-03 06:24:39,124 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 06:24:39,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 133 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 53 Unchecked, 0.1s Time] [2024-11-03 06:24:39,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-03 06:24:39,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2024-11-03 06:24:39,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 06:24:39,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2024-11-03 06:24:39,130 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 14 [2024-11-03 06:24:39,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:24:39,131 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2024-11-03 06:24:39,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:24:39,131 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-11-03 06:24:39,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-03 06:24:39,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:24:39,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:24:39,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 06:24:39,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:39,333 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:24:39,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:24:39,334 INFO L85 PathProgramCache]: Analyzing trace with hash -248422138, now seen corresponding path program 1 times [2024-11-03 06:24:39,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:24:39,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570239895] [2024-11-03 06:24:39,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:24:39,335 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:39,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:24:39,340 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:24:39,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 06:24:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:24:39,398 WARN L253 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-03 06:24:39,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:24:39,449 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v___fpclassify_float_~#gf_u~0.base_14| (_ BitVec 32))) (and (= |c_#memory_int#1| (store |c_old(#memory_int#1)| |v___fpclassify_float_~#gf_u~0.base_14| (store (select |c_old(#memory_int#1)| |v___fpclassify_float_~#gf_u~0.base_14|) (_ bv0 32) (select (select |c_#memory_int#1| |v___fpclassify_float_~#gf_u~0.base_14|) (_ bv0 32))))) (= (store |c_old(#valid)| |v___fpclassify_float_~#gf_u~0.base_14| (_ bv0 1)) |c_#valid|) (= (store |c_old(#length)| |v___fpclassify_float_~#gf_u~0.base_14| (_ bv4 32)) |c_#length|))) is different from true [2024-11-03 06:24:39,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:24:39,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:24:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:24:39,807 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:24:39,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570239895] [2024-11-03 06:24:39,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [570239895] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:24:39,807 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:24:39,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 5] imperfect sequences [] total 10 [2024-11-03 06:24:39,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621220887] [2024-11-03 06:24:39,808 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:24:39,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 06:24:39,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:24:39,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 06:24:39,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2024-11-03 06:24:39,809 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:24:39,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:24:39,868 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2024-11-03 06:24:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 06:24:39,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2024-11-03 06:24:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:24:39,869 INFO L225 Difference]: With dead ends: 31 [2024-11-03 06:24:39,869 INFO L226 Difference]: Without dead ends: 28 [2024-11-03 06:24:39,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=67, Unknown=1, NotChecked=16, Total=110 [2024-11-03 06:24:39,870 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 99 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 06:24:39,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 105 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 99 Unchecked, 0.0s Time] [2024-11-03 06:24:39,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-03 06:24:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-11-03 06:24:39,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-03 06:24:39,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-11-03 06:24:39,875 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 17 [2024-11-03 06:24:39,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:24:39,875 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-03 06:24:39,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:24:39,875 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-03 06:24:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-03 06:24:39,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:24:39,876 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:24:39,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 06:24:40,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:40,079 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:24:40,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:24:40,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1493632229, now seen corresponding path program 1 times [2024-11-03 06:24:40,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:24:40,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267599356] [2024-11-03 06:24:40,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:24:40,084 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:40,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:24:40,089 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:24:40,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 06:24:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:24:40,164 WARN L253 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-03 06:24:40,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:24:40,466 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-03 06:24:40,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:24:40,469 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:24:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:24:40,858 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:24:40,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267599356] [2024-11-03 06:24:40,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [267599356] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:24:40,859 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:24:40,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2024-11-03 06:24:40,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634175311] [2024-11-03 06:24:40,859 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:24:40,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 06:24:40,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:24:40,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 06:24:40,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=78, Unknown=4, NotChecked=0, Total=110 [2024-11-03 06:24:40,860 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:24:41,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:24:41,278 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2024-11-03 06:24:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-03 06:24:41,279 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-11-03 06:24:41,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:24:41,280 INFO L225 Difference]: With dead ends: 56 [2024-11-03 06:24:41,280 INFO L226 Difference]: Without dead ends: 32 [2024-11-03 06:24:41,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=148, Unknown=7, NotChecked=0, Total=210 [2024-11-03 06:24:41,281 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 21 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 06:24:41,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 97 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 2 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 06:24:41,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-03 06:24:41,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-11-03 06:24:41,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:24:41,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2024-11-03 06:24:41,289 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 21 [2024-11-03 06:24:41,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:24:41,289 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-11-03 06:24:41,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:24:41,290 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2024-11-03 06:24:41,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-03 06:24:41,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:24:41,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:24:41,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-03 06:24:41,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:41,492 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:24:41,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:24:41,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1347694819, now seen corresponding path program 1 times [2024-11-03 06:24:41,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:24:41,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730742913] [2024-11-03 06:24:41,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:24:41,493 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:41,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:24:41,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:24:41,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-03 06:24:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:24:41,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-03 06:24:41,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:24:41,664 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v___fpclassify_float_~#gf_u~0.base_32| (_ BitVec 32))) (and (= (store |c_old(#length)| |v___fpclassify_float_~#gf_u~0.base_32| (_ bv4 32)) |c_#length|) (= |c_#valid| (store |c_old(#valid)| |v___fpclassify_float_~#gf_u~0.base_32| (_ bv0 1))) (= |c_#memory_int#1| (store |c_old(#memory_int#1)| |v___fpclassify_float_~#gf_u~0.base_32| (store (select |c_old(#memory_int#1)| |v___fpclassify_float_~#gf_u~0.base_32|) (_ bv0 32) (select (select |c_#memory_int#1| |v___fpclassify_float_~#gf_u~0.base_32|) (_ bv0 32))))))) is different from true [2024-11-03 06:24:41,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-03 06:24:41,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-03 06:24:41,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-03 06:24:41,850 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v___fpclassify_float_~#gf_u~0.base_33| (_ BitVec 32))) (and (= |c_#memory_int#1| (store |c_old(#memory_int#1)| |v___fpclassify_float_~#gf_u~0.base_33| (store (select |c_old(#memory_int#1)| |v___fpclassify_float_~#gf_u~0.base_33|) (_ bv0 32) (select (select |c_#memory_int#1| |v___fpclassify_float_~#gf_u~0.base_33|) (_ bv0 32))))) (= |c_#valid| (store |c_old(#valid)| |v___fpclassify_float_~#gf_u~0.base_33| (_ bv0 1))) (= (store |c_old(#length)| |v___fpclassify_float_~#gf_u~0.base_33| (_ bv4 32)) |c_#length|))) is different from true [2024-11-03 06:24:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2024-11-03 06:24:41,927 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:24:42,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-03 06:24:42,261 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:24:42,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730742913] [2024-11-03 06:24:42,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [730742913] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 06:24:42,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 06:24:42,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-03 06:24:42,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193483202] [2024-11-03 06:24:42,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 06:24:42,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 06:24:42,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:24:42,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 06:24:42,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=56, Unknown=2, NotChecked=30, Total=110 [2024-11-03 06:24:42,262 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-03 06:24:42,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:24:42,283 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2024-11-03 06:24:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 06:24:42,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2024-11-03 06:24:42,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:24:42,284 INFO L225 Difference]: With dead ends: 42 [2024-11-03 06:24:42,284 INFO L226 Difference]: Without dead ends: 33 [2024-11-03 06:24:42,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=56, Unknown=2, NotChecked=30, Total=110 [2024-11-03 06:24:42,285 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 06:24:42,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 06:24:42,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-03 06:24:42,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-03 06:24:42,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-03 06:24:42,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2024-11-03 06:24:42,290 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 26 [2024-11-03 06:24:42,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:24:42,290 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2024-11-03 06:24:42,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-03 06:24:42,290 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2024-11-03 06:24:42,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-03 06:24:42,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:24:42,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:24:42,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-03 06:24:42,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:42,494 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:24:42,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:24:42,494 INFO L85 PathProgramCache]: Analyzing trace with hash 2027753189, now seen corresponding path program 1 times [2024-11-03 06:24:42,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:24:42,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922397151] [2024-11-03 06:24:42,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:24:42,495 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:42,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:24:42,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:24:42,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-03 06:24:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 06:24:42,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-03 06:24:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 06:24:42,636 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-03 06:24:42,636 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-03 06:24:42,637 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 06:24:42,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-03 06:24:42,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:24:42,842 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-03 06:24:42,865 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 06:24:42,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 06:24:42 BoogieIcfgContainer [2024-11-03 06:24:42,867 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 06:24:42,867 INFO L158 Benchmark]: Toolchain (without parser) took 5528.95ms. Allocated memory is still 273.7MB. Free memory was 220.0MB in the beginning and 107.0MB in the end (delta: 113.0MB). Peak memory consumption was 113.3MB. Max. memory is 8.0GB. [2024-11-03 06:24:42,868 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory is still 151.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 06:24:42,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.26ms. Allocated memory is still 273.7MB. Free memory was 220.0MB in the beginning and 206.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 06:24:42,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.46ms. Allocated memory is still 273.7MB. Free memory was 206.4MB in the beginning and 204.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-03 06:24:42,868 INFO L158 Benchmark]: Boogie Preprocessor took 36.26ms. Allocated memory is still 273.7MB. Free memory was 204.7MB in the beginning and 202.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 06:24:42,868 INFO L158 Benchmark]: RCFGBuilder took 285.61ms. Allocated memory is still 273.7MB. Free memory was 202.2MB in the beginning and 188.0MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 06:24:42,868 INFO L158 Benchmark]: TraceAbstraction took 4915.89ms. Allocated memory is still 273.7MB. Free memory was 187.2MB in the beginning and 107.0MB in the end (delta: 80.2MB). Peak memory consumption was 80.8MB. Max. memory is 8.0GB. [2024-11-03 06:24:42,869 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory is still 151.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 258.26ms. Allocated memory is still 273.7MB. Free memory was 220.0MB in the beginning and 206.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.46ms. Allocated memory is still 273.7MB. Free memory was 206.4MB in the beginning and 204.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.26ms. Allocated memory is still 273.7MB. Free memory was 204.7MB in the beginning and 202.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 285.61ms. Allocated memory is still 273.7MB. Free memory was 202.2MB in the beginning and 188.0MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4915.89ms. Allocated memory is still 273.7MB. Free memory was 187.2MB in the beginning and 107.0MB in the end (delta: 80.2MB). Peak memory consumption was 80.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 72]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L66] float x = -0.0f; [L67] float y = 0.0f; [L68] CALL, EXPR fmin_float(x, y) [L38] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0.0] [L15] __uint32_t w; VAL [\old(x)=0.0, x=0.0] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] COND TRUE w == 0x00000000 || w == 0x80000000 [L24] return 2; VAL [\old(x)=0.0, \result=2, x=0.0] [L38] RET, EXPR __fpclassify_float(x) VAL [x=0.0, y=0.0] [L38] COND FALSE !(__fpclassify_float(x) == 0) [L40] CALL, EXPR __fpclassify_float(y) VAL [\old(x)=0.0] [L15] __uint32_t w; VAL [\old(x)=0.0, x=0.0] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] COND TRUE w == 0x00000000 || w == 0x80000000 [L24] return 2; VAL [\old(x)=0.0, \result=2, x=0.0] [L40] RET, EXPR __fpclassify_float(y) VAL [x=0.0, y=0.0] [L40] COND FALSE !(__fpclassify_float(y) == 0) [L43] return x < y ? x : y; VAL [\result=0.0] [L68] RET, EXPR fmin_float(x, y) [L68] float res = fmin_float(x, y); [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0.0] [L71] EXPR res == -0.0f && __signbit_float(res) == 1 [L71] CALL, EXPR __signbit_float(res) [L47] __uint32_t w; VAL [x=0.0] [L50] ieee_float_shape_type gf_u; [L51] gf_u.value = (x) [L52] EXPR gf_u.word [L52] (w) = gf_u.word [L55] return (w & 0x80000000) != 0; VAL [\result=0, x=0.0] [L71] RET, EXPR __signbit_float(res) [L71] EXPR res == -0.0f && __signbit_float(res) == 1 [L71] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L72] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 445 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 152 IncrementalHoareTripleChecker+Unchecked, 312 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 133 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 137 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=5, InterpolantAutomatonStates: 34, 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 172 ConstructedInterpolants, 37 QuantifiedInterpolants, 1500 SizeOfPredicates, 36 NumberOfNonLiveVariables, 319 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 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 proved your program to be incorrect! [2024-11-03 06:24:42,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...