/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_fillercode_fillercodestructure_filler-pr-ci_file-55.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:11:51,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:11:51,182 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 12:11:51,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:11:51,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:11:51,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:11:51,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:11:51,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:11:51,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:11:51,218 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:11:51,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:11:51,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:11:51,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:11:51,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:11:51,220 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:11:51,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:11:51,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:11:51,221 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:11:51,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:11:51,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:11:51,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:11:51,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:11:51,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:11:51,223 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:11:51,223 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:11:51,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:11:51,223 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:11:51,224 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:11:51,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:11:51,224 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:11:51,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:11:51,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:11:51,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:11:51,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:11:51,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:11:51,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:11:51,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:11:51,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:11:51,226 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:11:51,226 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:11:51,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:11:51,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:11:51,226 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:11:51,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:11:51,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:11:51,227 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:11:51,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:11:51,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:11:51,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:11:51,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:11:51,462 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:11:51,463 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:11:51,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-55.i [2023-12-16 12:11:52,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:11:52,896 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:11:52,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-55.i [2023-12-16 12:11:52,916 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99f7b95b/fbd9ec0cbaf24ba08eb59f2dfa6a6267/FLAGe5531b15f [2023-12-16 12:11:52,929 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99f7b95b/fbd9ec0cbaf24ba08eb59f2dfa6a6267 [2023-12-16 12:11:52,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:11:52,932 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:11:52,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:11:52,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:11:52,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:11:52,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:11:52" (1/1) ... [2023-12-16 12:11:52,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13716da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:52, skipping insertion in model container [2023-12-16 12:11:52,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:11:52" (1/1) ... [2023-12-16 12:11:52,971 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:11:53,080 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_fillercode_fillercodestructure_filler-pr-ci_file-55.i[919,932] [2023-12-16 12:11:53,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:11:53,163 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:11:53,174 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_fillercode_fillercodestructure_filler-pr-ci_file-55.i[919,932] [2023-12-16 12:11:53,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:11:53,215 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:11:53,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53 WrapperNode [2023-12-16 12:11:53,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:11:53,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:11:53,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:11:53,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:11:53,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,268 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197 [2023-12-16 12:11:53,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:11:53,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:11:53,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:11:53,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:11:53,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,282 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,297 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 12:11:53,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,322 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:11:53,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:11:53,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:11:53,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:11:53,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (1/1) ... [2023-12-16 12:11:53,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:11:53,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:11:53,378 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 12:11:53,389 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 12:11:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:11:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:11:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:11:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:11:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:11:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:11:53,524 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:11:53,528 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:12:09,490 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:12:09,550 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:12:09,550 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:12:09,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:12:09 BoogieIcfgContainer [2023-12-16 12:12:09,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:12:09,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:12:09,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:12:09,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:12:09,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:11:52" (1/3) ... [2023-12-16 12:12:09,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7a314a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:12:09, skipping insertion in model container [2023-12-16 12:12:09,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:11:53" (2/3) ... [2023-12-16 12:12:09,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7a314a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:12:09, skipping insertion in model container [2023-12-16 12:12:09,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:12:09" (3/3) ... [2023-12-16 12:12:09,567 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-55.i [2023-12-16 12:12:09,580 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:12:09,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:12:09,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:12:09,622 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;@68f26e02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:12:09,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:12:09,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 47 states have internal predecessors, (68), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 12:12:09,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 12:12:09,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:12:09,638 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:12:09,639 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:12:09,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:12:09,643 INFO L85 PathProgramCache]: Analyzing trace with hash -110789656, now seen corresponding path program 1 times [2023-12-16 12:12:09,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:12:09,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322828324] [2023-12-16 12:12:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:12:09,654 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 12:12:09,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:12:09,660 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 12:12:09,662 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 12:12:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:12:10,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:12:10,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:12:10,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 892 proven. 0 refuted. 0 times theorem prover too weak. 1220 trivial. 0 not checked. [2023-12-16 12:12:10,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:12:10,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:12:10,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322828324] [2023-12-16 12:12:10,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322828324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:12:10,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:12:10,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:12:10,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920062991] [2023-12-16 12:12:10,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:12:10,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:12:10,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:12:10,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:12:10,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:12:10,693 INFO L87 Difference]: Start difference. First operand has 82 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 47 states have internal predecessors, (68), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-16 12:12:10,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:12:10,806 INFO L93 Difference]: Finished difference Result 159 states and 295 transitions. [2023-12-16 12:12:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:12:10,814 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 200 [2023-12-16 12:12:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:12:10,820 INFO L225 Difference]: With dead ends: 159 [2023-12-16 12:12:10,820 INFO L226 Difference]: Without dead ends: 78 [2023-12-16 12:12:10,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 199 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 12:12:10,825 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:12:10,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 12:12:10,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-16 12:12:10,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-16 12:12:10,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 43 states have internal predecessors, (57), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 12:12:10,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 123 transitions. [2023-12-16 12:12:10,894 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 123 transitions. Word has length 200 [2023-12-16 12:12:10,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:12:10,894 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 123 transitions. [2023-12-16 12:12:10,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-16 12:12:10,895 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 123 transitions. [2023-12-16 12:12:10,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 12:12:10,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:12:10,898 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:12:10,914 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 [2023-12-16 12:12:11,107 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 12:12:11,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:12:11,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:12:11,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1747399394, now seen corresponding path program 1 times [2023-12-16 12:12:11,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:12:11,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385123669] [2023-12-16 12:12:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:12:11,115 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 12:12:11,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:12:11,120 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 12:12:11,174 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 12:12:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:12:12,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:12:12,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:12:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 708 proven. 18 refuted. 0 times theorem prover too weak. 1386 trivial. 0 not checked. [2023-12-16 12:12:12,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:12:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 78 proven. 18 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2023-12-16 12:12:13,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:12:13,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385123669] [2023-12-16 12:12:13,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385123669] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:12:13,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:12:13,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 12:12:13,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163612936] [2023-12-16 12:12:13,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:12:13,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 12:12:13,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:12:13,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 12:12:13,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 12:12:13,014 INFO L87 Difference]: Start difference. First operand 78 states and 123 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-16 12:12:14,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:12:14,282 INFO L93 Difference]: Finished difference Result 161 states and 250 transitions. [2023-12-16 12:12:14,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 12:12:14,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 200 [2023-12-16 12:12:14,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:12:14,290 INFO L225 Difference]: With dead ends: 161 [2023-12-16 12:12:14,290 INFO L226 Difference]: Without dead ends: 84 [2023-12-16 12:12:14,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 392 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2023-12-16 12:12:14,292 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 108 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 12:12:14,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 169 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 12:12:14,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-16 12:12:14,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2023-12-16 12:12:14,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 12:12:14,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 124 transitions. [2023-12-16 12:12:14,304 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 124 transitions. Word has length 200 [2023-12-16 12:12:14,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:12:14,305 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 124 transitions. [2023-12-16 12:12:14,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-16 12:12:14,305 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 124 transitions. [2023-12-16 12:12:14,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 12:12:14,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:12:14,307 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:12:14,323 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 [2023-12-16 12:12:14,520 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 12:12:14,521 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:12:14,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:12:14,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1354372384, now seen corresponding path program 1 times [2023-12-16 12:12:14,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:12:14,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511327393] [2023-12-16 12:12:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:12:14,522 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 12:12:14,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:12:14,523 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 12:12:14,525 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 12:12:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:12:15,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:12:15,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:12:15,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 708 proven. 18 refuted. 0 times theorem prover too weak. 1386 trivial. 0 not checked. [2023-12-16 12:12:15,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:12:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 78 proven. 18 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2023-12-16 12:12:16,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:12:16,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511327393] [2023-12-16 12:12:16,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511327393] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:12:16,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:12:16,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 12:12:16,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893652083] [2023-12-16 12:12:16,402 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:12:16,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 12:12:16,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:12:16,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 12:12:16,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 12:12:16,404 INFO L87 Difference]: Start difference. First operand 82 states and 124 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-16 12:12:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:12:18,747 INFO L93 Difference]: Finished difference Result 235 states and 354 transitions. [2023-12-16 12:12:18,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 12:12:18,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 200 [2023-12-16 12:12:18,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:12:18,749 INFO L225 Difference]: With dead ends: 235 [2023-12-16 12:12:18,750 INFO L226 Difference]: Without dead ends: 154 [2023-12-16 12:12:18,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 392 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2023-12-16 12:12:18,755 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 204 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 12:12:18,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 341 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 12:12:18,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-12-16 12:12:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 82. [2023-12-16 12:12:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 46 states have internal predecessors, (56), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 12:12:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 122 transitions. [2023-12-16 12:12:18,784 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 122 transitions. Word has length 200 [2023-12-16 12:12:18,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:12:18,798 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 122 transitions. [2023-12-16 12:12:18,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-16 12:12:18,798 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 122 transitions. [2023-12-16 12:12:18,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 12:12:18,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:12:18,800 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:12:18,828 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 (4)] Ended with exit code 0 [2023-12-16 12:12:19,029 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 12:12:19,029 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:12:19,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:12:19,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1411690268, now seen corresponding path program 1 times [2023-12-16 12:12:19,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:12:19,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878869814] [2023-12-16 12:12:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:12:19,035 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 12:12:19,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:12:19,036 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 12:12:19,040 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 12:12:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:12:20,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 12:12:20,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:13:10,647 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:13:10,647 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 12:13:11,675 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 12:13:11,848 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 12:13:11,879 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:13:11,880 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 201 with TraceHistMax 33,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 12:13:11,892 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 12:13:11,894 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:13:11,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:13:11 BoogieIcfgContainer [2023-12-16 12:13:11,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 12:13:11,899 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:13:11,900 INFO L158 Benchmark]: Toolchain (without parser) took 78967.86ms. Allocated memory was 183.5MB in the beginning and 245.4MB in the end (delta: 61.9MB). Free memory was 132.8MB in the beginning and 143.6MB in the end (delta: -10.8MB). Peak memory consumption was 53.0MB. Max. memory is 8.0GB. [2023-12-16 12:13:11,900 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 183.5MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:13:11,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.72ms. Allocated memory is still 183.5MB. Free memory was 132.6MB in the beginning and 116.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 12:13:11,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.95ms. Allocated memory is still 183.5MB. Free memory was 116.6MB in the beginning and 113.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 12:13:11,900 INFO L158 Benchmark]: Boogie Preprocessor took 63.50ms. Allocated memory is still 183.5MB. Free memory was 113.9MB in the beginning and 110.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 12:13:11,901 INFO L158 Benchmark]: RCFGBuilder took 16217.65ms. Allocated memory was 183.5MB in the beginning and 245.4MB in the end (delta: 61.9MB). Free memory was 110.3MB in the beginning and 200.8MB in the end (delta: -90.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 12:13:11,901 INFO L158 Benchmark]: TraceAbstraction took 62337.09ms. Allocated memory is still 245.4MB. Free memory was 200.3MB in the beginning and 143.6MB in the end (delta: 56.7MB). Peak memory consumption was 58.8MB. Max. memory is 8.0GB. [2023-12-16 12:13:11,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 183.5MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 281.72ms. Allocated memory is still 183.5MB. Free memory was 132.6MB in the beginning and 116.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.95ms. Allocated memory is still 183.5MB. Free memory was 116.6MB in the beginning and 113.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.50ms. Allocated memory is still 183.5MB. Free memory was 113.9MB in the beginning and 110.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 16217.65ms. Allocated memory was 183.5MB in the beginning and 245.4MB in the end (delta: 61.9MB). Free memory was 110.3MB in the beginning and 200.8MB in the end (delta: -90.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 62337.09ms. Allocated memory is still 245.4MB. Free memory was 200.3MB in the beginning and 143.6MB in the end (delta: 56.7MB). Peak memory consumption was 58.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 201 with TraceHistMax 33,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.3s, OverallIterations: 4, TraceHistogramMax: 33, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 341 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 312 mSDsluCounter, 630 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 290 mSDsCounter, 286 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 612 IncrementalHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 286 mSolverCounterUnsat, 340 mSDtfsCounter, 612 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1012 GetRequests, 983 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 3 MinimizatonAttempts, 74 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 600 NumberOfCodeBlocks, 600 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 995 ConstructedInterpolants, 0 QuantifiedInterpolants, 1417 SizeOfPredicates, 9 NumberOfNonLiveVariables, 990 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 10488/10560 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