/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-18.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 08:19:39,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 08:19:39,876 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 08:19:39,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 08:19:39,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 08:19:39,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 08:19:39,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 08:19:39,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 08:19:39,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 08:19:39,907 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 08:19:39,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 08:19:39,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 08:19:39,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 08:19:39,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 08:19:39,909 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 08:19:39,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 08:19:39,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 08:19:39,910 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 08:19:39,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 08:19:39,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 08:19:39,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 08:19:39,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 08:19:39,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 08:19:39,914 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 08:19:39,914 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 08:19:39,914 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 08:19:39,914 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 08:19:39,914 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 08:19:39,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 08:19:39,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 08:19:39,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 08:19:39,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 08:19:39,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 08:19:39,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 08:19:39,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:19:39,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 08:19:39,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 08:19:39,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 08:19:39,916 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 08:19:39,916 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 08:19:39,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 08:19:39,917 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 08:19:39,917 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 08:19:39,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 08:19:39,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 08:19:40,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 08:19:40,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 08:19:40,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 08:19:40,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 08:19:40,139 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 08:19:40,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-18.i [2024-11-06 08:19:41,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 08:19:41,570 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 08:19:41,571 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-18.i [2024-11-06 08:19:41,583 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/790f3fdcc/8128afd493b44d3f9acf65ac93621097/FLAG16e3105c3 [2024-11-06 08:19:41,594 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/790f3fdcc/8128afd493b44d3f9acf65ac93621097 [2024-11-06 08:19:41,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 08:19:41,598 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 08:19:41,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 08:19:41,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 08:19:41,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 08:19:41,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:41,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2412c851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41, skipping insertion in model container [2024-11-06 08:19:41,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:41,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 08:19:41,773 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-18.i[916,929] [2024-11-06 08:19:41,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:19:41,875 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 08:19:41,887 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-18.i[916,929] [2024-11-06 08:19:41,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:19:41,951 INFO L204 MainTranslator]: Completed translation [2024-11-06 08:19:41,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41 WrapperNode [2024-11-06 08:19:41,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 08:19:41,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 08:19:41,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 08:19:41,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 08:19:41,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:41,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,000 INFO L138 Inliner]: procedures = 27, calls = 64, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 372 [2024-11-06 08:19:42,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 08:19:42,001 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 08:19:42,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 08:19:42,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 08:19:42,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,026 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,058 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]. [2024-11-06 08:19:42,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,080 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 08:19:42,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 08:19:42,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 08:19:42,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 08:19:42,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (1/1) ... [2024-11-06 08:19:42,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:19:42,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:19:42,134 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) [2024-11-06 08:19:42,136 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 [2024-11-06 08:19:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 08:19:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 08:19:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 08:19:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 08:19:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 08:19:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 08:19:42,253 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 08:19:42,258 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 08:19:48,787 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-06 08:19:48,787 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 08:19:48,803 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 08:19:48,803 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 08:19:48,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:19:48 BoogieIcfgContainer [2024-11-06 08:19:48,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 08:19:48,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 08:19:48,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 08:19:48,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 08:19:48,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:19:41" (1/3) ... [2024-11-06 08:19:48,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d32e992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:19:48, skipping insertion in model container [2024-11-06 08:19:48,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:41" (2/3) ... [2024-11-06 08:19:48,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d32e992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:19:48, skipping insertion in model container [2024-11-06 08:19:48,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:19:48" (3/3) ... [2024-11-06 08:19:48,812 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-18.i [2024-11-06 08:19:48,825 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 08:19:48,825 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 08:19:48,905 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 08:19:48,910 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;@89acbef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 08:19:48,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 08:19:48,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 105 states have (on average 1.5142857142857142) internal successors, (159), 106 states have internal predecessors, (159), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-06 08:19:48,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-06 08:19:48,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:19:48,930 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:19:48,930 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:19:48,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:19:48,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2021097536, now seen corresponding path program 1 times [2024-11-06 08:19:48,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:19:48,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336006495] [2024-11-06 08:19:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:19:48,945 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 [2024-11-06 08:19:48,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:19:48,949 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) [2024-11-06 08:19:48,949 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 [2024-11-06 08:19:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:19:49,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 08:19:49,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:19:49,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-06 08:19:49,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:19:49,845 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:19:49,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336006495] [2024-11-06 08:19:49,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336006495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:19:49,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:19:49,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 08:19:49,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850923585] [2024-11-06 08:19:49,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:19:49,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 08:19:49,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:19:49,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 08:19:49,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:19:49,877 INFO L87 Difference]: Start difference. First operand has 159 states, 105 states have (on average 1.5142857142857142) internal successors, (159), 106 states have internal predecessors, (159), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-06 08:19:49,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:19:49,918 INFO L93 Difference]: Finished difference Result 311 states and 567 transitions. [2024-11-06 08:19:49,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 08:19:49,921 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 331 [2024-11-06 08:19:49,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:19:49,931 INFO L225 Difference]: With dead ends: 311 [2024-11-06 08:19:49,931 INFO L226 Difference]: Without dead ends: 155 [2024-11-06 08:19:49,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:19:49,939 INFO L432 NwaCegarLoop]: 253 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, 253 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 [2024-11-06 08:19:49,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 08:19:49,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-06 08:19:49,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2024-11-06 08:19:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 102 states have (on average 1.4803921568627452) internal successors, (151), 102 states have internal predecessors, (151), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-06 08:19:49,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 253 transitions. [2024-11-06 08:19:50,001 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 253 transitions. Word has length 331 [2024-11-06 08:19:50,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:19:50,003 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 253 transitions. [2024-11-06 08:19:50,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-06 08:19:50,004 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 253 transitions. [2024-11-06 08:19:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-06 08:19:50,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:19:50,010 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:19:50,045 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 [2024-11-06 08:19:50,214 WARN L453 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 [2024-11-06 08:19:50,215 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:19:50,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:19:50,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1850593826, now seen corresponding path program 1 times [2024-11-06 08:19:50,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:19:50,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675644078] [2024-11-06 08:19:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:19:50,218 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 [2024-11-06 08:19:50,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:19:50,221 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) [2024-11-06 08:19:50,222 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 [2024-11-06 08:19:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:19:50,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 08:19:51,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:19:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-06 08:19:56,941 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:19:56,942 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:19:56,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675644078] [2024-11-06 08:19:56,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675644078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:19:56,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:19:56,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 08:19:56,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025712737] [2024-11-06 08:19:56,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:19:56,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 08:19:56,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:19:56,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 08:19:56,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 08:19:56,948 INFO L87 Difference]: Start difference. First operand 155 states and 253 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-06 08:20:01,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:20:05,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:20:10,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:20:14,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:20:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:20:14,016 INFO L93 Difference]: Finished difference Result 460 states and 754 transitions. [2024-11-06 08:20:14,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 08:20:14,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 332 [2024-11-06 08:20:14,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:20:14,104 INFO L225 Difference]: With dead ends: 460 [2024-11-06 08:20:14,104 INFO L226 Difference]: Without dead ends: 308 [2024-11-06 08:20:14,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 08:20:14,110 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 241 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 103 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2024-11-06 08:20:14,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 739 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 16.9s Time] [2024-11-06 08:20:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-06 08:20:14,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 241. [2024-11-06 08:20:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 136 states have (on average 1.3676470588235294) internal successors, (186), 136 states have internal predecessors, (186), 102 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-06 08:20:14,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 390 transitions. [2024-11-06 08:20:14,176 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 390 transitions. Word has length 332 [2024-11-06 08:20:14,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:20:14,181 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 390 transitions. [2024-11-06 08:20:14,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-06 08:20:14,181 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 390 transitions. [2024-11-06 08:20:14,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-06 08:20:14,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:20:14,188 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:20:14,227 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 [2024-11-06 08:20:14,389 WARN L453 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 [2024-11-06 08:20:14,390 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:20:14,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:20:14,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1373464638, now seen corresponding path program 1 times [2024-11-06 08:20:14,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:20:14,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074030931] [2024-11-06 08:20:14,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:20:14,392 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 [2024-11-06 08:20:14,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:20:14,396 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) [2024-11-06 08:20:14,397 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 [2024-11-06 08:20:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:20:15,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 08:20:15,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:20:27,367 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 488 proven. 282 refuted. 0 times theorem prover too weak. 4330 trivial. 0 not checked. [2024-11-06 08:20:27,368 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:20:28,029 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:20:28,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074030931] [2024-11-06 08:20:28,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074030931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:20:28,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770412666] [2024-11-06 08:20:28,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:20:28,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:20:28,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:20:28,044 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 08:20:28,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 08:20:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:20:28,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 08:20:28,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:20:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-06 08:20:29,304 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:20:29,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770412666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:20:29,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 08:20:29,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-06 08:20:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227510148] [2024-11-06 08:20:29,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:20:29,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 08:20:29,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:20:29,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 08:20:29,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-06 08:20:29,307 INFO L87 Difference]: Start difference. First operand 241 states and 390 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-06 08:20:33,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:20:37,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:20:38,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:20:38,246 INFO L93 Difference]: Finished difference Result 544 states and 888 transitions. [2024-11-06 08:20:38,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 08:20:38,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 332 [2024-11-06 08:20:38,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:20:38,254 INFO L225 Difference]: With dead ends: 544 [2024-11-06 08:20:38,254 INFO L226 Difference]: Without dead ends: 392 [2024-11-06 08:20:38,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-06 08:20:38,259 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 217 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-06 08:20:38,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 505 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2024-11-06 08:20:38,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-06 08:20:38,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 388. [2024-11-06 08:20:38,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 231 states have (on average 1.3982683982683983) internal successors, (323), 231 states have internal predecessors, (323), 153 states have call successors, (153), 3 states have call predecessors, (153), 3 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-06 08:20:38,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 629 transitions. [2024-11-06 08:20:38,306 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 629 transitions. Word has length 332 [2024-11-06 08:20:38,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:20:38,309 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 629 transitions. [2024-11-06 08:20:38,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-06 08:20:38,310 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 629 transitions. [2024-11-06 08:20:38,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-06 08:20:38,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:20:38,314 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:20:38,346 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 [2024-11-06 08:20:38,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 08:20:38,714 WARN L453 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:20:38,715 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:20:38,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:20:38,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1650039366, now seen corresponding path program 1 times [2024-11-06 08:20:38,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:20:38,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620056662] [2024-11-06 08:20:38,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:20:38,716 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 [2024-11-06 08:20:38,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:20:38,717 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 08:20:38,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-06 08:20:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:20:39,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 08:20:39,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:20:52,271 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 488 proven. 282 refuted. 0 times theorem prover too weak. 4330 trivial. 0 not checked. [2024-11-06 08:20:52,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:20:52,916 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:20:52,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620056662] [2024-11-06 08:20:52,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620056662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:20:52,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690162501] [2024-11-06 08:20:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:20:52,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:20:52,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:20:52,919 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 08:20:52,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 08:20:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:20:53,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 08:20:53,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:20:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-06 08:20:54,660 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:20:54,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690162501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:20:54,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 08:20:54,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-06 08:20:54,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714974702] [2024-11-06 08:20:54,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:20:54,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 08:20:54,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:20:54,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 08:20:54,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-06 08:20:54,662 INFO L87 Difference]: Start difference. First operand 388 states and 629 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-06 08:21:00,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:21:05,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:21:09,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:21:13,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:21:17,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:21:21,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:21:24,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:21:26,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:21:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:21:28,133 INFO L93 Difference]: Finished difference Result 1457 states and 2336 transitions. [2024-11-06 08:21:28,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-06 08:21:28,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 332 [2024-11-06 08:21:28,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:21:28,144 INFO L225 Difference]: With dead ends: 1457 [2024-11-06 08:21:28,144 INFO L226 Difference]: Without dead ends: 1144 [2024-11-06 08:21:28,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-11-06 08:21:28,148 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 879 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 156 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2024-11-06 08:21:28,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 1225 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 193 Invalid, 6 Unknown, 0 Unchecked, 32.8s Time] [2024-11-06 08:21:28,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2024-11-06 08:21:28,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 577. [2024-11-06 08:21:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 389 states have (on average 1.4498714652956297) internal successors, (564), 391 states have internal predecessors, (564), 181 states have call successors, (181), 6 states have call predecessors, (181), 6 states have return successors, (181), 179 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-06 08:21:28,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 926 transitions. [2024-11-06 08:21:28,221 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 926 transitions. Word has length 332 [2024-11-06 08:21:28,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:21:28,221 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 926 transitions. [2024-11-06 08:21:28,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-06 08:21:28,222 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 926 transitions. [2024-11-06 08:21:28,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-06 08:21:28,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:21:28,228 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:21:28,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-06 08:21:28,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-06 08:21:28,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:21:28,629 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:21:28,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:21:28,629 INFO L85 PathProgramCache]: Analyzing trace with hash -417889094, now seen corresponding path program 1 times [2024-11-06 08:21:28,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:21:28,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053609805] [2024-11-06 08:21:28,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:21:28,630 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 [2024-11-06 08:21:28,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:21:28,633 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 08:21:28,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process