/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-63.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:45:00,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:45:01,059 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 14:45:01,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:45:01,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:45:01,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:45:01,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:45:01,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:45:01,085 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:45:01,087 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:45:01,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:45:01,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:45:01,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:45:01,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:45:01,089 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:45:01,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:45:01,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:45:01,090 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:45:01,090 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:45:01,091 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:45:01,091 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:45:01,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:45:01,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:45:01,092 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:45:01,092 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:45:01,092 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:45:01,092 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:45:01,092 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:45:01,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:45:01,093 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:45:01,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:45:01,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:45:01,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:45:01,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:45:01,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:45:01,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:45:01,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:45:01,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:45:01,094 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:45:01,094 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:45:01,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:45:01,095 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:45:01,095 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:45:01,095 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:45:01,095 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:45:01,095 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:45:01,095 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:45:01,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:45:01,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:45:01,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:45:01,282 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:45:01,283 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:45:01,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-63.i [2023-12-16 14:45:02,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:45:02,388 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:45:02,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-63.i [2023-12-16 14:45:02,397 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c41a6b26/dbf5989f3ddb4e5898efc916dca8c8aa/FLAG1ffa7f517 [2023-12-16 14:45:02,406 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c41a6b26/dbf5989f3ddb4e5898efc916dca8c8aa [2023-12-16 14:45:02,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:45:02,409 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:45:02,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:45:02,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:45:02,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:45:02,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a3e89f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02, skipping insertion in model container [2023-12-16 14:45:02,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,452 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:45:02,545 WARN L239 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-63.i[916,929] [2023-12-16 14:45:02,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:45:02,656 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:45:02,677 WARN L239 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-63.i[916,929] [2023-12-16 14:45:02,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:45:02,765 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:45:02,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02 WrapperNode [2023-12-16 14:45:02,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:45:02,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:45:02,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:45:02,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:45:02,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,820 INFO L138 Inliner]: procedures = 27, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 350 [2023-12-16 14:45:02,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:45:02,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:45:02,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:45:02,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:45:02,828 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,836 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,861 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 14:45:02,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:45:02,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:45:02,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:45:02,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:45:02,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (1/1) ... [2023-12-16 14:45:02,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:45:02,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:45:03,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 14:45:03,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 14:45:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:45:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:45:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:45:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:45:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:45:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:45:03,157 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:45:03,159 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:45:11,560 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:45:11,591 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:45:11,591 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:45:11,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:45:11 BoogieIcfgContainer [2023-12-16 14:45:11,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:45:11,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:45:11,593 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:45:11,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:45:11,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:45:02" (1/3) ... [2023-12-16 14:45:11,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b08f84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:45:11, skipping insertion in model container [2023-12-16 14:45:11,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:45:02" (2/3) ... [2023-12-16 14:45:11,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b08f84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:45:11, skipping insertion in model container [2023-12-16 14:45:11,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:45:11" (3/3) ... [2023-12-16 14:45:11,597 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-63.i [2023-12-16 14:45:11,607 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:45:11,607 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:45:11,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:45:11,647 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1857f85c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:45:11,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:45:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 91 states have (on average 1.5164835164835164) internal successors, (138), 92 states have internal predecessors, (138), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 14:45:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-12-16 14:45:11,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:45:11,675 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:45:11,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:45:11,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:45:11,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1773102102, now seen corresponding path program 1 times [2023-12-16 14:45:11,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:45:11,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96788755] [2023-12-16 14:45:11,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:45:11,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:45:11,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:45:11,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:45:11,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 14:45:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:45:12,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:45:12,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:45:12,349 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 1952 proven. 0 refuted. 0 times theorem prover too weak. 2372 trivial. 0 not checked. [2023-12-16 14:45:12,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:45:12,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:45:12,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96788755] [2023-12-16 14:45:12,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96788755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:45:12,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:45:12,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:45:12,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766348252] [2023-12-16 14:45:12,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:45:12,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:45:12,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:45:12,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:45:12,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:45:12,373 INFO L87 Difference]: Start difference. First operand has 141 states, 91 states have (on average 1.5164835164835164) internal successors, (138), 92 states have internal predecessors, (138), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-16 14:45:16,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:45:16,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:45:16,956 INFO L93 Difference]: Finished difference Result 278 states and 507 transitions. [2023-12-16 14:45:17,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:45:17,036 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 302 [2023-12-16 14:45:17,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:45:17,042 INFO L225 Difference]: With dead ends: 278 [2023-12-16 14:45:17,042 INFO L226 Difference]: Without dead ends: 138 [2023-12-16 14:45:17,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:45:17,048 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-16 14:45:17,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2023-12-16 14:45:17,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-16 14:45:17,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-12-16 14:45:17,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 89 states have (on average 1.449438202247191) internal successors, (129), 89 states have internal predecessors, (129), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 14:45:17,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 223 transitions. [2023-12-16 14:45:17,084 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 223 transitions. Word has length 302 [2023-12-16 14:45:17,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:45:17,084 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 223 transitions. [2023-12-16 14:45:17,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-16 14:45:17,085 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 223 transitions. [2023-12-16 14:45:17,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-12-16 14:45:17,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:45:17,102 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:45:17,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 14:45:17,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:45:17,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:45:17,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:45:17,319 INFO L85 PathProgramCache]: Analyzing trace with hash 776500140, now seen corresponding path program 1 times [2023-12-16 14:45:17,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:45:17,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6843137] [2023-12-16 14:45:17,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:45:17,320 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:45:17,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:45:17,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:45:17,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 14:45:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:45:17,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 14:45:17,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:45:20,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 1018 proven. 120 refuted. 0 times theorem prover too weak. 3186 trivial. 0 not checked. [2023-12-16 14:45:20,213 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:45:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 18 proven. 120 refuted. 0 times theorem prover too weak. 4186 trivial. 0 not checked. [2023-12-16 14:45:21,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:45:21,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6843137] [2023-12-16 14:45:21,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6843137] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:45:21,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:45:21,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 14:45:21,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437965980] [2023-12-16 14:45:21,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:45:21,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 14:45:21,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:45:21,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 14:45:21,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 14:45:21,348 INFO L87 Difference]: Start difference. First operand 138 states and 223 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2023-12-16 14:45:27,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:45:31,834 WARN L539 Checker$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 [] [2023-12-16 14:45:35,837 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 [] [2023-12-16 14:45:35,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:45:35,841 INFO L93 Difference]: Finished difference Result 280 states and 448 transitions. [2023-12-16 14:45:35,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 14:45:35,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 302 [2023-12-16 14:45:35,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:45:35,963 INFO L225 Difference]: With dead ends: 280 [2023-12-16 14:45:35,963 INFO L226 Difference]: Without dead ends: 143 [2023-12-16 14:45:35,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 596 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2023-12-16 14:45:35,965 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 303 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 124 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2023-12-16 14:45:35,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 381 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 266 Invalid, 3 Unknown, 0 Unchecked, 14.2s Time] [2023-12-16 14:45:35,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-12-16 14:45:35,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2023-12-16 14:45:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 91 states have (on average 1.3846153846153846) internal successors, (126), 91 states have internal predecessors, (126), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 14:45:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 220 transitions. [2023-12-16 14:45:35,984 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 220 transitions. Word has length 302 [2023-12-16 14:45:35,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:45:35,984 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 220 transitions. [2023-12-16 14:45:35,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2023-12-16 14:45:35,985 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 220 transitions. [2023-12-16 14:45:36,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-12-16 14:45:36,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:45:36,004 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:45:36,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 14:45:36,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:45:36,213 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:45:36,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:45:36,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1101324752, now seen corresponding path program 1 times [2023-12-16 14:45:36,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:45:36,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088080823] [2023-12-16 14:45:36,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:45:36,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:45:36,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:45:36,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:45:36,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 14:45:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:45:36,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 14:45:36,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:45:39,788 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-16 14:45:39,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:45:39,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:45:39,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088080823] [2023-12-16 14:45:39,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088080823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:45:39,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:45:39,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 14:45:39,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909636252] [2023-12-16 14:45:39,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:45:39,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 14:45:39,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:45:39,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 14:45:39,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 14:45:39,791 INFO L87 Difference]: Start difference. First operand 141 states and 220 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 14:45:44,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:45:44,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:45:44,908 INFO L93 Difference]: Finished difference Result 284 states and 442 transitions. [2023-12-16 14:45:45,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 14:45:45,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 302 [2023-12-16 14:45:45,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:45:45,047 INFO L225 Difference]: With dead ends: 284 [2023-12-16 14:45:45,047 INFO L226 Difference]: Without dead ends: 144 [2023-12-16 14:45:45,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 14:45:45,049 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 195 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 97 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-16 14:45:45,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 215 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2023-12-16 14:45:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-16 14:45:45,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 140. [2023-12-16 14:45:45,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 90 states have internal predecessors, (123), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 14:45:45,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 217 transitions. [2023-12-16 14:45:45,066 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 217 transitions. Word has length 302 [2023-12-16 14:45:45,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:45:45,066 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 217 transitions. [2023-12-16 14:45:45,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 14:45:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 217 transitions. [2023-12-16 14:45:45,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-12-16 14:45:45,069 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:45:45,069 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:45:45,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 14:45:45,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:45:45,286 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:45:45,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:45:45,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1889370832, now seen corresponding path program 1 times [2023-12-16 14:45:45,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:45:45,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916795703] [2023-12-16 14:45:45,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:45:45,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:45:45,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:45:45,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:45:45,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 14:45:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:45:45,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 14:45:45,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:45:53,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-16 14:45:53,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:45:53,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:45:53,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916795703] [2023-12-16 14:45:53,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916795703] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:45:53,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:45:53,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 14:45:53,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057208404] [2023-12-16 14:45:53,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:45:53,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 14:45:53,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:45:53,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 14:45:53,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 14:45:53,067 INFO L87 Difference]: Start difference. First operand 140 states and 217 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 14:45:58,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:46:02,652 WARN L539 Checker$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 [] [2023-12-16 14:46:08,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:46:12,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:46:16,083 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 [] [2023-12-16 14:46:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:46:16,084 INFO L93 Difference]: Finished difference Result 419 states and 650 transitions. [2023-12-16 14:46:16,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 14:46:16,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 302 [2023-12-16 14:46:16,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:46:16,278 INFO L225 Difference]: With dead ends: 419 [2023-12-16 14:46:16,278 INFO L226 Difference]: Without dead ends: 280 [2023-12-16 14:46:16,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 14:46:16,279 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 108 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 95 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2023-12-16 14:46:16,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 609 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 28 Invalid, 5 Unknown, 0 Unchecked, 22.9s Time] [2023-12-16 14:46:16,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-16 14:46:16,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 237. [2023-12-16 14:46:16,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 138 states have (on average 1.2753623188405796) internal successors, (176), 138 states have internal predecessors, (176), 94 states have call successors, (94), 4 states have call predecessors, (94), 4 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 14:46:16,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 364 transitions. [2023-12-16 14:46:16,320 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 364 transitions. Word has length 302 [2023-12-16 14:46:16,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:46:16,320 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 364 transitions. [2023-12-16 14:46:16,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-16 14:46:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 364 transitions. [2023-12-16 14:46:16,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-12-16 14:46:16,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:46:16,322 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:46:16,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 14:46:16,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:46:16,537 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:46:16,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:46:16,537 INFO L85 PathProgramCache]: Analyzing trace with hash 33857202, now seen corresponding path program 1 times [2023-12-16 14:46:16,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:46:16,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661416912] [2023-12-16 14:46:16,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:46:16,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:46:16,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:46:16,539 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:46:16,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 14:46:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:46:17,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 14:46:17,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 14:46:18,767 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:46:18,794 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:46:19,776 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 14:46:19,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 14:46:19,902 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 [2023-12-16 14:46:19,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:46:19,993 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 303 with TraceHistMax 47,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 14:46:19,997 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 14:46:19,999 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 14:46:20,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:46:20 BoogieIcfgContainer [2023-12-16 14:46:20,000 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 14:46:20,000 INFO L158 Benchmark]: Toolchain (without parser) took 77591.05ms. Allocated memory is still 246.4MB. Free memory was 201.6MB in the beginning and 88.9MB in the end (delta: 112.7MB). Peak memory consumption was 113.9MB. Max. memory is 8.0GB. [2023-12-16 14:46:20,001 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 198.2MB. Free memory is still 148.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 14:46:20,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.86ms. Allocated memory is still 246.4MB. Free memory was 201.6MB in the beginning and 176.7MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-16 14:46:20,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.23ms. Allocated memory is still 246.4MB. Free memory was 176.7MB in the beginning and 172.2MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 14:46:20,001 INFO L158 Benchmark]: Boogie Preprocessor took 89.18ms. Allocated memory is still 246.4MB. Free memory was 172.2MB in the beginning and 162.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 14:46:20,001 INFO L158 Benchmark]: RCFGBuilder took 8680.99ms. Allocated memory is still 246.4MB. Free memory was 162.8MB in the beginning and 168.6MB in the end (delta: -5.8MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. [2023-12-16 14:46:20,001 INFO L158 Benchmark]: TraceAbstraction took 68406.89ms. Allocated memory is still 246.4MB. Free memory was 167.6MB in the beginning and 88.9MB in the end (delta: 78.7MB). Peak memory consumption was 78.7MB. Max. memory is 8.0GB. [2023-12-16 14:46:20,002 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 198.2MB. Free memory is still 148.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 353.86ms. Allocated memory is still 246.4MB. Free memory was 201.6MB in the beginning and 176.7MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.23ms. Allocated memory is still 246.4MB. Free memory was 176.7MB in the beginning and 172.2MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 89.18ms. Allocated memory is still 246.4MB. Free memory was 172.2MB in the beginning and 162.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 8680.99ms. Allocated memory is still 246.4MB. Free memory was 162.8MB in the beginning and 168.6MB in the end (delta: -5.8MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. * TraceAbstraction took 68406.89ms. Allocated memory is still 246.4MB. Free memory was 167.6MB in the beginning and 88.9MB in the end (delta: 78.7MB). Peak memory consumption was 78.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 303 with TraceHistMax 47,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 141 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.4s, OverallIterations: 5, TraceHistogramMax: 47, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 47.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 607 SdHoareTripleChecker+Valid, 46.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 606 mSDsluCounter, 1425 SdHoareTripleChecker+Invalid, 46.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 626 mSDsCounter, 316 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 303 IncrementalHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 316 mSolverCounterUnsat, 799 mSDtfsCounter, 303 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1514 GetRequests, 1495 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 49 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 1208 NumberOfCodeBlocks, 1208 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1505 ConstructedInterpolants, 0 QuantifiedInterpolants, 5220 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2074 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 21380/21620 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown