/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-97.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 11:31:33,355 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 11:31:33,428 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 11:31:33,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 11:31:33,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 11:31:33,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 11:31:33,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 11:31:33,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 11:31:33,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 11:31:33,458 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 11:31:33,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 11:31:33,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 11:31:33,458 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 11:31:33,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 11:31:33,459 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 11:31:33,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 11:31:33,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 11:31:33,460 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 11:31:33,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 11:31:33,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 11:31:33,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 11:31:33,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 11:31:33,461 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 11:31:33,461 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 11:31:33,461 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 11:31:33,461 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 11:31:33,462 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 11:31:33,462 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 11:31:33,462 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 11:31:33,462 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 11:31:33,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 11:31:33,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 11:31:33,463 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 11:31:33,463 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 11:31:33,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 11:31:33,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 11:31:33,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 11:31:33,463 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 11:31:33,464 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 11:31:33,464 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 11:31:33,464 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 11:31:33,464 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 11:31:33,465 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 11:31:33,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 11:31:33,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 11:31:33,465 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 11:31:33,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 11:31:33,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 11:31:33,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 11:31:33,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 11:31:33,696 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 11:31:33,697 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 11:31:33,698 INFO L431 ainManager$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-97.i [2023-12-23 11:31:34,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 11:31:34,840 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 11:31:34,841 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-97.i [2023-12-23 11:31:34,856 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842c8118b/615cd70fc9ee4cb78b3de4d1a3ee04d8/FLAGee02427f9 [2023-12-23 11:31:34,873 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842c8118b/615cd70fc9ee4cb78b3de4d1a3ee04d8 [2023-12-23 11:31:34,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 11:31:34,876 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 11:31:34,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 11:31:34,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 11:31:34,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 11:31:34,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:31:34" (1/1) ... [2023-12-23 11:31:34,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f0d036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:34, skipping insertion in model container [2023-12-23 11:31:34,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:31:34" (1/1) ... [2023-12-23 11:31:34,916 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 11:31:35,057 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-97.i[919,932] [2023-12-23 11:31:35,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 11:31:35,119 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 11:31:35,128 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-97.i[919,932] [2023-12-23 11:31:35,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 11:31:35,170 INFO L206 MainTranslator]: Completed translation [2023-12-23 11:31:35,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35 WrapperNode [2023-12-23 11:31:35,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 11:31:35,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 11:31:35,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 11:31:35,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 11:31:35,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,215 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-12-23 11:31:35,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 11:31:35,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 11:31:35,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 11:31:35,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 11:31:35,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,248 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 11:31:35,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 11:31:35,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 11:31:35,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 11:31:35,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 11:31:35,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (1/1) ... [2023-12-23 11:31:35,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 11:31:35,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 11:31:35,301 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 11:31:35,307 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 11:31:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 11:31:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 11:31:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 11:31:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 11:31:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 11:31:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 11:31:35,379 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 11:31:35,381 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 11:31:43,883 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 11:31:43,934 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 11:31:43,934 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 11:31:43,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:31:43 BoogieIcfgContainer [2023-12-23 11:31:43,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 11:31:43,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 11:31:43,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 11:31:43,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 11:31:43,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:31:34" (1/3) ... [2023-12-23 11:31:43,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a610264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:31:43, skipping insertion in model container [2023-12-23 11:31:43,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:31:35" (2/3) ... [2023-12-23 11:31:43,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a610264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:31:43, skipping insertion in model container [2023-12-23 11:31:43,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:31:43" (3/3) ... [2023-12-23 11:31:43,947 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-97.i [2023-12-23 11:31:43,961 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 11:31:43,961 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 11:31:43,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 11:31:43,997 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;@14cb0365, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 11:31:43,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 11:31:44,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-23 11:31:44,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-23 11:31:44,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:31:44,010 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:44,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:31:44,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:31:44,014 INFO L85 PathProgramCache]: Analyzing trace with hash -590971721, now seen corresponding path program 1 times [2023-12-23 11:31:44,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:31:44,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732159942] [2023-12-23 11:31:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:31:44,024 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 11:31:44,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:31:44,027 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 11:31:44,034 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 11:31:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:31:44,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 11:31:44,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:31:44,439 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-12-23 11:31:44,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 11:31:44,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:31:44,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732159942] [2023-12-23 11:31:44,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732159942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 11:31:44,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 11:31:44,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 11:31:44,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360741567] [2023-12-23 11:31:44,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 11:31:44,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 11:31:44,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:31:44,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 11:31:44,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 11:31:44,488 INFO L87 Difference]: Start difference. First operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-23 11:31:44,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:31:44,581 INFO L93 Difference]: Finished difference Result 135 states and 240 transitions. [2023-12-23 11:31:44,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 11:31:44,585 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 132 [2023-12-23 11:31:44,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:31:44,590 INFO L225 Difference]: With dead ends: 135 [2023-12-23 11:31:44,591 INFO L226 Difference]: Without dead ends: 67 [2023-12-23 11:31:44,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 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 11:31:44,595 INFO L413 NwaCegarLoop]: 102 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, 102 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 [2023-12-23 11:31:44,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 11:31:44,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-23 11:31:44,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-12-23 11:31:44,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 45 states have internal predecessors, (65), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-23 11:31:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 105 transitions. [2023-12-23 11:31:44,639 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 105 transitions. Word has length 132 [2023-12-23 11:31:44,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:31:44,640 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 105 transitions. [2023-12-23 11:31:44,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-23 11:31:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 105 transitions. [2023-12-23 11:31:44,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-23 11:31:44,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:31:44,644 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:44,660 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 11:31:44,853 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 11:31:44,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:31:44,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:31:44,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2069329583, now seen corresponding path program 1 times [2023-12-23 11:31:44,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:31:44,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278125557] [2023-12-23 11:31:44,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:31:44,857 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 11:31:44,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:31:44,858 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 11:31:44,859 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 11:31:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:31:45,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 11:31:45,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:31:45,531 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-12-23 11:31:45,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 11:31:45,876 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-23 11:31:45,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:31:45,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278125557] [2023-12-23 11:31:45,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278125557] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 11:31:45,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 11:31:45,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 11:31:45,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639625580] [2023-12-23 11:31:45,878 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 11:31:45,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 11:31:45,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:31:45,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 11:31:45,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 11:31:45,880 INFO L87 Difference]: Start difference. First operand 67 states and 105 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-23 11:31:46,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:31:46,651 INFO L93 Difference]: Finished difference Result 138 states and 210 transitions. [2023-12-23 11:31:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-23 11:31:46,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 132 [2023-12-23 11:31:46,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:31:46,654 INFO L225 Difference]: With dead ends: 138 [2023-12-23 11:31:46,654 INFO L226 Difference]: Without dead ends: 72 [2023-12-23 11:31:46,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-23 11:31:46,656 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 107 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-23 11:31:46,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 140 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-23 11:31:46,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-23 11:31:46,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2023-12-23 11:31:46,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 45 states have internal predecessors, (57), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-23 11:31:46,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 97 transitions. [2023-12-23 11:31:46,667 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 97 transitions. Word has length 132 [2023-12-23 11:31:46,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:31:46,668 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 97 transitions. [2023-12-23 11:31:46,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-23 11:31:46,668 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 97 transitions. [2023-12-23 11:31:46,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-23 11:31:46,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:31:46,669 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:46,681 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 11:31:46,879 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 11:31:46,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:31:46,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:31:46,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2111379149, now seen corresponding path program 1 times [2023-12-23 11:31:46,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:31:46,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053114736] [2023-12-23 11:31:46,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:31:46,882 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 11:31:46,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:31:46,884 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 11:31:46,886 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 11:31:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:31:47,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 11:31:47,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:31:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-23 11:31:47,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 11:31:47,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:31:47,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053114736] [2023-12-23 11:31:47,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053114736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 11:31:47,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 11:31:47,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 11:31:47,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80398500] [2023-12-23 11:31:47,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 11:31:47,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 11:31:47,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:31:47,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 11:31:47,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-23 11:31:47,982 INFO L87 Difference]: Start difference. First operand 68 states and 97 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-23 11:31:48,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:31:48,599 INFO L93 Difference]: Finished difference Result 179 states and 257 transitions. [2023-12-23 11:31:48,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 11:31:48,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132 [2023-12-23 11:31:48,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:31:48,601 INFO L225 Difference]: With dead ends: 179 [2023-12-23 11:31:48,601 INFO L226 Difference]: Without dead ends: 112 [2023-12-23 11:31:48,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-23 11:31:48,602 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 115 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-23 11:31:48,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 291 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-23 11:31:48,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-23 11:31:48,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 68. [2023-12-23 11:31:48,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 45 states have internal predecessors, (55), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-23 11:31:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 95 transitions. [2023-12-23 11:31:48,632 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 95 transitions. Word has length 132 [2023-12-23 11:31:48,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:31:48,633 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 95 transitions. [2023-12-23 11:31:48,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-23 11:31:48,633 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 95 transitions. [2023-12-23 11:31:48,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-23 11:31:48,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:31:48,639 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:48,667 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 11:31:48,870 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 11:31:48,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:31:48,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:31:48,874 INFO L85 PathProgramCache]: Analyzing trace with hash -716895116, now seen corresponding path program 1 times [2023-12-23 11:31:48,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:31:48,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612196980] [2023-12-23 11:31:48,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:31:48,874 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 11:31:48,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:31:48,876 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 11:31:48,877 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 11:31:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:31:49,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 11:31:49,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:31:50,711 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-23 11:31:50,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 11:31:50,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:31:50,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612196980] [2023-12-23 11:31:50,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612196980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 11:31:50,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 11:31:50,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 11:31:50,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214640804] [2023-12-23 11:31:50,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 11:31:50,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 11:31:50,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:31:50,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 11:31:50,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-23 11:31:50,714 INFO L87 Difference]: Start difference. First operand 68 states and 95 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-23 11:31:51,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:31:51,116 INFO L93 Difference]: Finished difference Result 208 states and 289 transitions. [2023-12-23 11:31:51,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 11:31:51,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133 [2023-12-23 11:31:51,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:31:51,118 INFO L225 Difference]: With dead ends: 208 [2023-12-23 11:31:51,118 INFO L226 Difference]: Without dead ends: 141 [2023-12-23 11:31:51,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-23 11:31:51,119 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 72 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 11:31:51,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 290 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 11:31:51,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-23 11:31:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 133. [2023-12-23 11:31:51,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 88 states have internal predecessors, (107), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-23 11:31:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 187 transitions. [2023-12-23 11:31:51,146 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 187 transitions. Word has length 133 [2023-12-23 11:31:51,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:31:51,146 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 187 transitions. [2023-12-23 11:31:51,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-23 11:31:51,146 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 187 transitions. [2023-12-23 11:31:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-23 11:31:51,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:31:51,147 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:51,157 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 [2023-12-23 11:31:51,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 11:31:51,357 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:31:51,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:31:51,358 INFO L85 PathProgramCache]: Analyzing trace with hash -749262764, now seen corresponding path program 1 times [2023-12-23 11:31:51,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:31:51,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122615009] [2023-12-23 11:31:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:31:51,358 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 11:31:51,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:31:51,363 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 11:31:51,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-23 11:31:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:31:51,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-23 11:31:51,696 INFO L285 TraceCheckSpWp]: Computing forward predicates...