/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_loopvsstraightlinecode_100-while_file-81.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 23:34:21,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 23:34:21,870 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 23:34:21,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 23:34:21,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 23:34:21,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 23:34:21,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 23:34:21,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 23:34:21,893 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 23:34:21,893 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 23:34:21,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 23:34:21,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 23:34:21,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 23:34:21,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 23:34:21,895 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 23:34:21,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 23:34:21,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 23:34:21,896 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 23:34:21,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 23:34:21,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 23:34:21,896 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 23:34:21,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 23:34:21,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 23:34:21,898 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 23:34:21,898 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 23:34:21,898 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 23:34:21,898 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 23:34:21,898 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 23:34:21,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 23:34:21,899 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 23:34:21,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 23:34:21,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 23:34:21,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 23:34:21,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 23:34:21,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 23:34:21,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 23:34:21,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 23:34:21,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 23:34:21,901 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 23:34:21,901 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 23:34:21,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 23:34:21,901 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 23:34:21,902 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 23:34:21,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 23:34:21,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 23:34:21,902 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 23:34:21,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 23:34:22,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 23:34:22,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 23:34:22,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 23:34:22,109 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 23:34:22,109 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 23:34:22,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-81.i [2023-12-23 23:34:23,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 23:34:23,211 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 23:34:23,211 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-81.i [2023-12-23 23:34:23,220 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f4ce9bf/41c112bbefbb485092528541a0351bae/FLAG0fe1f458c [2023-12-23 23:34:23,230 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f4ce9bf/41c112bbefbb485092528541a0351bae [2023-12-23 23:34:23,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 23:34:23,234 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 23:34:23,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 23:34:23,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 23:34:23,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 23:34:23,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7099dc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23, skipping insertion in model container [2023-12-23 23:34:23,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,261 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 23:34:23,349 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_loopvsstraightlinecode_100-while_file-81.i[916,929] [2023-12-23 23:34:23,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 23:34:23,415 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 23:34:23,423 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_loopvsstraightlinecode_100-while_file-81.i[916,929] [2023-12-23 23:34:23,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 23:34:23,462 INFO L206 MainTranslator]: Completed translation [2023-12-23 23:34:23,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23 WrapperNode [2023-12-23 23:34:23,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 23:34:23,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 23:34:23,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 23:34:23,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 23:34:23,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,511 INFO L138 Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 232 [2023-12-23 23:34:23,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 23:34:23,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 23:34:23,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 23:34:23,512 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 23:34:23,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,532 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,551 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]. [2023-12-23 23:34:23,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 23:34:23,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 23:34:23,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 23:34:23,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 23:34:23,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (1/1) ... [2023-12-23 23:34:23,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 23:34:23,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 23:34:23,609 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) [2023-12-23 23:34:23,620 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 [2023-12-23 23:34:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 23:34:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 23:34:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 23:34:23,634 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 23:34:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 23:34:23,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 23:34:23,704 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 23:34:23,705 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 23:34:48,087 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 23:34:48,150 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 23:34:48,150 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 23:34:48,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:34:48 BoogieIcfgContainer [2023-12-23 23:34:48,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 23:34:48,152 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 23:34:48,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 23:34:48,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 23:34:48,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:34:23" (1/3) ... [2023-12-23 23:34:48,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea5abc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:34:48, skipping insertion in model container [2023-12-23 23:34:48,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:34:23" (2/3) ... [2023-12-23 23:34:48,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea5abc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:34:48, skipping insertion in model container [2023-12-23 23:34:48,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:34:48" (3/3) ... [2023-12-23 23:34:48,156 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-81.i [2023-12-23 23:34:48,167 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 23:34:48,167 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 23:34:48,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 23:34:48,210 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;@3125737d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 23:34:48,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 23:34:48,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 56 states have internal predecessors, (79), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-23 23:34:48,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-23 23:34:48,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:34:48,238 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:34:48,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:34:48,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:34:48,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1009738347, now seen corresponding path program 1 times [2023-12-23 23:34:48,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:34:48,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877634383] [2023-12-23 23:34:48,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:34:48,256 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 [2023-12-23 23:34:48,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:34:48,257 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) [2023-12-23 23:34:48,258 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 [2023-12-23 23:34:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:34:49,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 23:34:49,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:34:50,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 968 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2023-12-23 23:34:50,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 23:34:50,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:34:50,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877634383] [2023-12-23 23:34:50,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877634383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 23:34:50,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 23:34:50,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 23:34:50,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268791401] [2023-12-23 23:34:50,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 23:34:50,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 23:34:50,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:34:50,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 23:34:50,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 23:34:50,035 INFO L87 Difference]: Start difference. First operand has 93 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 56 states have internal predecessors, (79), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-23 23:34:55,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:34:55,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:34:55,965 INFO L93 Difference]: Finished difference Result 183 states and 331 transitions. [2023-12-23 23:34:56,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 23:34:56,643 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 216 [2023-12-23 23:34:56,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:34:56,648 INFO L225 Difference]: With dead ends: 183 [2023-12-23 23:34:56,648 INFO L226 Difference]: Without dead ends: 91 [2023-12-23 23:34:56,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 23:34:56,652 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-23 23:34:56,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-12-23 23:34:56,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-12-23 23:34:56,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-12-23 23:34:56,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 54 states have (on average 1.3703703703703705) internal successors, (74), 54 states have internal predecessors, (74), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-23 23:34:56,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 144 transitions. [2023-12-23 23:34:56,686 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 144 transitions. Word has length 216 [2023-12-23 23:34:56,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:34:56,687 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 144 transitions. [2023-12-23 23:34:56,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-23 23:34:56,687 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 144 transitions. [2023-12-23 23:34:56,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-23 23:34:56,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:34:56,698 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:34:56,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-23 23:34:56,910 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 [2023-12-23 23:34:56,911 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:34:56,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:34:56,912 INFO L85 PathProgramCache]: Analyzing trace with hash -863097923, now seen corresponding path program 1 times [2023-12-23 23:34:56,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:34:56,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044929232] [2023-12-23 23:34:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:34:56,913 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 [2023-12-23 23:34:56,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:34:56,914 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) [2023-12-23 23:34:56,915 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 [2023-12-23 23:34:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:34:58,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 23:34:58,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:35:06,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2023-12-23 23:35:06,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 23:35:06,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:35:06,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044929232] [2023-12-23 23:35:06,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044929232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 23:35:06,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 23:35:06,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 23:35:06,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797041887] [2023-12-23 23:35:06,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 23:35:06,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 23:35:06,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:35:06,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 23:35:06,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 23:35:06,375 INFO L87 Difference]: Start difference. First operand 91 states and 144 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2023-12-23 23:35:13,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:35:17,377 WARN L539 Checker$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 [] [2023-12-23 23:35:21,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:35:25,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:35:29,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:35:36,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:35:40,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:35:44,151 WARN L539 Checker$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 [] [2023-12-23 23:35:48,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:35:48,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:35:48,198 INFO L93 Difference]: Finished difference Result 298 states and 474 transitions. [2023-12-23 23:35:48,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 23:35:48,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 216 [2023-12-23 23:35:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:35:48,967 INFO L225 Difference]: With dead ends: 298 [2023-12-23 23:35:48,967 INFO L226 Difference]: Without dead ends: 208 [2023-12-23 23:35:48,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 23:35:48,969 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 143 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 73 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.4s IncrementalHoareTripleChecker+Time [2023-12-23 23:35:48,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 590 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 26 Invalid, 9 Unknown, 0 Unchecked, 41.4s Time] [2023-12-23 23:35:48,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-23 23:35:49,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 183. [2023-12-23 23:35:49,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 110 states have (on average 1.3545454545454545) internal successors, (149), 110 states have internal predecessors, (149), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-23 23:35:49,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 289 transitions. [2023-12-23 23:35:49,011 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 289 transitions. Word has length 216 [2023-12-23 23:35:49,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:35:49,014 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 289 transitions. [2023-12-23 23:35:49,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2023-12-23 23:35:49,015 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 289 transitions. [2023-12-23 23:35:49,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-23 23:35:49,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:35:49,017 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:35:49,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 23:35:49,224 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 [2023-12-23 23:35:49,225 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:35:49,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:35:49,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1212186196, now seen corresponding path program 1 times [2023-12-23 23:35:49,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:35:49,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927772359] [2023-12-23 23:35:49,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:35:49,226 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 [2023-12-23 23:35:49,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:35:49,227 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) [2023-12-23 23:35:49,228 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 [2023-12-23 23:35:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:35:50,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 23:35:50,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:35:58,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2023-12-23 23:35:58,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 23:35:58,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:35:58,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927772359] [2023-12-23 23:35:58,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927772359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 23:35:58,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 23:35:58,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 23:35:58,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986654447] [2023-12-23 23:35:58,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 23:35:58,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 23:35:58,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:35:58,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 23:35:58,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 23:35:58,956 INFO L87 Difference]: Start difference. First operand 183 states and 289 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2023-12-23 23:36:05,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:36:09,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:36:13,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:36:13,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:36:13,949 INFO L93 Difference]: Finished difference Result 547 states and 865 transitions. [2023-12-23 23:36:13,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 23:36:13,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 217 [2023-12-23 23:36:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:36:13,952 INFO L225 Difference]: With dead ends: 547 [2023-12-23 23:36:13,952 INFO L226 Difference]: Without dead ends: 365 [2023-12-23 23:36:13,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 23:36:13,955 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 33 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-12-23 23:36:13,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 287 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2023-12-23 23:36:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-12-23 23:36:13,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 361. [2023-12-23 23:36:13,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 216 states have (on average 1.3425925925925926) internal successors, (290), 216 states have internal predecessors, (290), 140 states have call successors, (140), 4 states have call predecessors, (140), 4 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-23 23:36:13,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 570 transitions. [2023-12-23 23:36:13,994 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 570 transitions. Word has length 217 [2023-12-23 23:36:13,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:36:13,995 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 570 transitions. [2023-12-23 23:36:13,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2023-12-23 23:36:13,995 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 570 transitions. [2023-12-23 23:36:13,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-23 23:36:13,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:36:13,998 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:36:14,034 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 [2023-12-23 23:36:14,215 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 [2023-12-23 23:36:14,216 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:36:14,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:36:14,216 INFO L85 PathProgramCache]: Analyzing trace with hash -715357486, now seen corresponding path program 1 times [2023-12-23 23:36:14,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:36:14,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115892646] [2023-12-23 23:36:14,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:36:14,217 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 [2023-12-23 23:36:14,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:36:14,218 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) [2023-12-23 23:36:14,226 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 [2023-12-23 23:36:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:36:15,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 23:36:15,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:36:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 718 proven. 84 refuted. 0 times theorem prover too weak. 1578 trivial. 0 not checked. [2023-12-23 23:36:46,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 23:38:06,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:38:06,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115892646] [2023-12-23 23:38:06,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115892646] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 23:38:06,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1363271446] [2023-12-23 23:38:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:38:06,104 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 23:38:06,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 23:38:06,129 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 23:38:06,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-23 23:38:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:38:13,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 23:38:13,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:38:43,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 718 proven. 84 refuted. 0 times theorem prover too weak. 1578 trivial. 0 not checked. [2023-12-23 23:38:43,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 23:39:42,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1363271446] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 23:39:42,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 23:39:42,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2023-12-23 23:39:42,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923348405] [2023-12-23 23:39:42,142 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 23:39:42,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 23:39:42,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:39:42,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 23:39:42,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-23 23:39:42,144 INFO L87 Difference]: Start difference. First operand 361 states and 570 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-23 23:39:54,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:39:58,343 WARN L539 Checker$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 [] [2023-12-23 23:40:02,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:40:07,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:40:11,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:40:15,956 WARN L539 Checker$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 [] [2023-12-23 23:40:19,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:40:25,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:40:29,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:40:33,703 WARN L539 Checker$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 [] [2023-12-23 23:40:37,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:40:42,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:40:46,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:40:50,578 WARN L539 Checker$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 [] [2023-12-23 23:40:58,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:02,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:06,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:10,090 WARN L539 Checker$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 [] [2023-12-23 23:41:11,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:13,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:16,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:20,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:25,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:29,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:33,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:37,304 WARN L539 Checker$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 [] [2023-12-23 23:41:41,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:46,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:50,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:55,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:41:59,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:03,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:08,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:12,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:16,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:20,584 WARN L539 Checker$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 [] [2023-12-23 23:42:23,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:28,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:32,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:36,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:40,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:44,041 WARN L539 Checker$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 [] [2023-12-23 23:42:51,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:55,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:42:59,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:43:03,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:43:07,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:43:11,164 WARN L539 Checker$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 [] [2023-12-23 23:43:11,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:43:11,165 INFO L93 Difference]: Finished difference Result 881 states and 1388 transitions. [2023-12-23 23:43:11,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-23 23:43:11,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 218 [2023-12-23 23:43:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:43:11,893 INFO L225 Difference]: With dead ends: 881 [2023-12-23 23:43:11,893 INFO L226 Difference]: Without dead ends: 521 [2023-12-23 23:43:11,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 22.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-12-23 23:43:11,898 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 147 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 91 mSolverCounterUnsat, 43 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 202.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 43 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 207.0s IncrementalHoareTripleChecker+Time [2023-12-23 23:43:11,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 398 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 290 Invalid, 43 Unknown, 0 Unchecked, 207.0s Time] [2023-12-23 23:43:11,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-12-23 23:43:11,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 433. [2023-12-23 23:43:11,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 251 states have (on average 1.3067729083665338) internal successors, (328), 251 states have internal predecessors, (328), 175 states have call successors, (175), 6 states have call predecessors, (175), 6 states have return successors, (175), 175 states have call predecessors, (175), 175 states have call successors, (175) [2023-12-23 23:43:11,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 678 transitions. [2023-12-23 23:43:11,956 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 678 transitions. Word has length 218 [2023-12-23 23:43:11,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:43:11,957 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 678 transitions. [2023-12-23 23:43:11,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-23 23:43:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 678 transitions. [2023-12-23 23:43:11,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-23 23:43:11,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:43:11,963 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:43:11,996 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 (5)] Ended with exit code 0 [2023-12-23 23:43:12,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-23 23:43:12,371 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 23:43:12,371 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:43:12,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:43:12,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1991261908, now seen corresponding path program 1 times [2023-12-23 23:43:12,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:43:12,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329041503] [2023-12-23 23:43:12,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:43:12,373 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 [2023-12-23 23:43:12,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:43:12,373 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2023-12-23 23:43:12,374 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 (7)] Waiting until timeout for monitored process [2023-12-23 23:43:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:43:14,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 60 conjunts are in the unsatisfiable core [2023-12-23 23:43:14,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:47:52,909 WARN L293 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 23:48:35,764 WARN L293 SmtUtils]: Spent 10.64s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-23 23:49:05,250 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 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 23:49:05,250 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 [2023-12-23 23:49:05,276 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 23:49:05,306 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 (7)] Forceful destruction successful, exit code 0 [2023-12-23 23:49:05,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 [2023-12-23 23:49:05,477 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 219 with TraceHistMax 35,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 40 known predicates. [2023-12-23 23:49:05,480 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-23 23:49:05,482 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 23:49:05,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 11:49:05 BoogieIcfgContainer [2023-12-23 23:49:05,483 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 23:49:05,483 INFO L158 Benchmark]: Toolchain (without parser) took 882250.07ms. Allocated memory is still 213.9MB. Free memory was 168.0MB in the beginning and 123.0MB in the end (delta: 45.0MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2023-12-23 23:49:05,484 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 213.9MB. Free memory was 171.2MB in the beginning and 170.9MB in the end (delta: 249.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 23:49:05,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.37ms. Allocated memory is still 213.9MB. Free memory was 168.0MB in the beginning and 149.7MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-23 23:49:05,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.28ms. Allocated memory is still 213.9MB. Free memory was 149.7MB in the beginning and 146.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 23:49:05,484 INFO L158 Benchmark]: Boogie Preprocessor took 67.93ms. Allocated memory is still 213.9MB. Free memory was 146.5MB in the beginning and 141.8MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-23 23:49:05,484 INFO L158 Benchmark]: RCFGBuilder took 24570.02ms. Allocated memory is still 213.9MB. Free memory was 141.8MB in the beginning and 113.0MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-23 23:49:05,484 INFO L158 Benchmark]: TraceAbstraction took 857331.44ms. Allocated memory is still 213.9MB. Free memory was 112.4MB in the beginning and 123.0MB in the end (delta: -10.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 23:49:05,485 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 213.9MB. Free memory was 171.2MB in the beginning and 170.9MB in the end (delta: 249.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.37ms. Allocated memory is still 213.9MB. Free memory was 168.0MB in the beginning and 149.7MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.28ms. Allocated memory is still 213.9MB. Free memory was 149.7MB in the beginning and 146.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.93ms. Allocated memory is still 213.9MB. Free memory was 146.5MB in the beginning and 141.8MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 24570.02ms. Allocated memory is still 213.9MB. Free memory was 141.8MB in the beginning and 113.0MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 857331.44ms. Allocated memory is still 213.9MB. Free memory was 112.4MB in the beginning and 123.0MB in the end (delta: -10.5MB). There was no memory consumed. 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 219 with TraceHistMax 35,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 40 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 857.3s, OverallIterations: 5, TraceHistogramMax: 35, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 274.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 mSolverCounterUnknown, 323 SdHoareTripleChecker+Valid, 269.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 323 mSDsluCounter, 1416 SdHoareTripleChecker+Invalid, 263.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 862 mSDsCounter, 164 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 328 IncrementalHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 164 mSolverCounterUnsat, 554 mSDtfsCounter, 328 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1448 GetRequests, 1427 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 22.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=433occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 117 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 13.3s SatisfiabilityAnalysisTime, 215.2s InterpolantComputationTime, 1085 NumberOfCodeBlocks, 1085 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1080 ConstructedInterpolants, 0 QuantifiedInterpolants, 10484 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1814 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 11732/11900 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