/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-14.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 04:45:47,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 04:45:47,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 04:45:47,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 04:45:47,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 04:45:47,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 04:45:47,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 04:45:47,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 04:45:47,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 04:45:47,834 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 04:45:47,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 04:45:47,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 04:45:47,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 04:45:47,835 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 04:45:47,835 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 04:45:47,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 04:45:47,836 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 04:45:47,836 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 04:45:47,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 04:45:47,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 04:45:47,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 04:45:47,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 04:45:47,838 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 04:45:47,838 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 04:45:47,838 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 04:45:47,838 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 04:45:47,838 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 04:45:47,838 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 04:45:47,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 04:45:47,839 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 04:45:47,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 04:45:47,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 04:45:47,840 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 04:45:47,840 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 04:45:47,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 04:45:47,840 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 04:45:47,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 04:45:47,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 04:45:47,840 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 04:45:47,840 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 04:45:47,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 04:45:47,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 04:45:47,841 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 04:45:47,841 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 04:45:47,841 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 04:45:47,841 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 04:45:47,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 04:45:48,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 04:45:48,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 04:45:48,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 04:45:48,034 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 04:45:48,034 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 04:45:48,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-14.i [2023-12-24 04:45:49,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 04:45:49,171 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 04:45:49,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-14.i [2023-12-24 04:45:49,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31f1d0429/31f486f6c586460b8284700de1c1c43d/FLAG02d440e2d [2023-12-24 04:45:49,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31f1d0429/31f486f6c586460b8284700de1c1c43d [2023-12-24 04:45:49,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 04:45:49,190 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 04:45:49,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 04:45:49,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 04:45:49,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 04:45:49,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1896ccb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49, skipping insertion in model container [2023-12-24 04:45:49,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,218 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 04:45:49,304 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-14.i[916,929] [2023-12-24 04:45:49,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 04:45:49,362 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 04:45:49,370 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-14.i[916,929] [2023-12-24 04:45:49,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 04:45:49,430 INFO L206 MainTranslator]: Completed translation [2023-12-24 04:45:49,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49 WrapperNode [2023-12-24 04:45:49,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 04:45:49,432 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 04:45:49,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 04:45:49,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 04:45:49,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,465 INFO L138 Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 205 [2023-12-24 04:45:49,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 04:45:49,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 04:45:49,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 04:45:49,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 04:45:49,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,477 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,486 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]. [2023-12-24 04:45:49,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,494 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 04:45:49,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 04:45:49,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 04:45:49,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 04:45:49,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (1/1) ... [2023-12-24 04:45:49,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 04:45:49,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 04:45:49,537 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) [2023-12-24 04:45:49,544 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 [2023-12-24 04:45:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 04:45:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 04:45:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 04:45:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 04:45:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 04:45:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 04:45:49,667 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 04:45:49,669 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 04:45:51,307 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 04:45:51,344 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 04:45:51,345 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 04:45:51,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 04:45:51 BoogieIcfgContainer [2023-12-24 04:45:51,345 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 04:45:51,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 04:45:51,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 04:45:51,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 04:45:51,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 04:45:49" (1/3) ... [2023-12-24 04:45:51,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8864b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 04:45:51, skipping insertion in model container [2023-12-24 04:45:51,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 04:45:49" (2/3) ... [2023-12-24 04:45:51,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8864b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 04:45:51, skipping insertion in model container [2023-12-24 04:45:51,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 04:45:51" (3/3) ... [2023-12-24 04:45:51,350 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-14.i [2023-12-24 04:45:51,362 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 04:45:51,362 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 04:45:51,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 04:45:51,432 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;@25ae3e70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 04:45:51,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 04:45:51,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 49 states have (on average 1.469387755102041) internal successors, (72), 50 states have internal predecessors, (72), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-24 04:45:51,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-24 04:45:51,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 04:45:51,450 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 04:45:51,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 04:45:51,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 04:45:51,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2097201629, now seen corresponding path program 1 times [2023-12-24 04:45:51,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 04:45:51,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354393356] [2023-12-24 04:45:51,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 04:45:51,470 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 [2023-12-24 04:45:51,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 04:45:51,472 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) [2023-12-24 04:45:51,501 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 [2023-12-24 04:45:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 04:45:51,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 04:45:51,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 04:45:51,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2023-12-24 04:45:51,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 04:45:51,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 04:45:51,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354393356] [2023-12-24 04:45:51,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354393356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 04:45:51,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 04:45:51,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 04:45:51,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071428935] [2023-12-24 04:45:51,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 04:45:51,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 04:45:51,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 04:45:51,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 04:45:51,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 04:45:51,929 INFO L87 Difference]: Start difference. First operand has 83 states, 49 states have (on average 1.469387755102041) internal successors, (72), 50 states have internal predecessors, (72), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-24 04:45:52,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 04:45:52,351 INFO L93 Difference]: Finished difference Result 162 states and 295 transitions. [2023-12-24 04:45:52,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 04:45:52,382 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 192 [2023-12-24 04:45:52,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 04:45:52,387 INFO L225 Difference]: With dead ends: 162 [2023-12-24 04:45:52,387 INFO L226 Difference]: Without dead ends: 80 [2023-12-24 04:45:52,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 04:45:52,395 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 04:45:52,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 04:45:52,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-12-24 04:45:52,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-12-24 04:45:52,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 47 states have internal predecessors, (64), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-24 04:45:52,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 126 transitions. [2023-12-24 04:45:52,425 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 126 transitions. Word has length 192 [2023-12-24 04:45:52,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 04:45:52,425 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 126 transitions. [2023-12-24 04:45:52,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-24 04:45:52,426 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 126 transitions. [2023-12-24 04:45:52,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-24 04:45:52,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 04:45:52,429 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 04:45:52,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-24 04:45:52,645 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 [2023-12-24 04:45:52,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 04:45:52,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 04:45:52,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1873201569, now seen corresponding path program 1 times [2023-12-24 04:45:52,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 04:45:52,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249782841] [2023-12-24 04:45:52,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 04:45:52,647 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 [2023-12-24 04:45:52,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 04:45:52,653 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) [2023-12-24 04:45:52,655 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 [2023-12-24 04:45:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 04:45:52,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 04:45:52,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 04:45:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-12-24 04:45:53,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 04:45:53,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 04:45:53,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249782841] [2023-12-24 04:45:53,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249782841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 04:45:53,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 04:45:53,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 04:45:53,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986899652] [2023-12-24 04:45:53,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 04:45:53,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 04:45:53,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 04:45:53,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 04:45:53,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 04:45:53,765 INFO L87 Difference]: Start difference. First operand 80 states and 126 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-24 04:45:56,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 04:45:56,036 INFO L93 Difference]: Finished difference Result 246 states and 385 transitions. [2023-12-24 04:45:56,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 04:45:56,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 192 [2023-12-24 04:45:56,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 04:45:56,067 INFO L225 Difference]: With dead ends: 246 [2023-12-24 04:45:56,067 INFO L226 Difference]: Without dead ends: 167 [2023-12-24 04:45:56,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 04:45:56,069 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 101 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-24 04:45:56,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 350 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-24 04:45:56,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-12-24 04:45:56,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 157. [2023-12-24 04:45:56,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 92 states have (on average 1.358695652173913) internal successors, (125), 92 states have internal predecessors, (125), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-24 04:45:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 249 transitions. [2023-12-24 04:45:56,109 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 249 transitions. Word has length 192 [2023-12-24 04:45:56,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 04:45:56,110 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 249 transitions. [2023-12-24 04:45:56,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-24 04:45:56,110 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 249 transitions. [2023-12-24 04:45:56,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-24 04:45:56,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 04:45:56,120 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 04:45:56,134 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 [2023-12-24 04:45:56,331 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 [2023-12-24 04:45:56,333 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 04:45:56,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 04:45:56,334 INFO L85 PathProgramCache]: Analyzing trace with hash -120943137, now seen corresponding path program 1 times [2023-12-24 04:45:56,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 04:45:56,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292827868] [2023-12-24 04:45:56,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 04:45:56,335 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 [2023-12-24 04:45:56,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 04:45:56,336 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) [2023-12-24 04:45:56,340 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 [2023-12-24 04:45:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 04:45:56,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 04:45:56,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 04:45:56,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-12-24 04:45:56,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 04:45:56,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 04:45:56,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292827868] [2023-12-24 04:45:56,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292827868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 04:45:56,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 04:45:56,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 04:45:56,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562228245] [2023-12-24 04:45:56,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 04:45:56,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 04:45:56,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 04:45:56,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 04:45:56,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 04:45:56,880 INFO L87 Difference]: Start difference. First operand 157 states and 249 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-24 04:45:58,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 04:45:58,115 INFO L93 Difference]: Finished difference Result 392 states and 622 transitions. [2023-12-24 04:45:58,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 04:45:58,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 192 [2023-12-24 04:45:58,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 04:45:58,118 INFO L225 Difference]: With dead ends: 392 [2023-12-24 04:45:58,118 INFO L226 Difference]: Without dead ends: 236 [2023-12-24 04:45:58,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 04:45:58,120 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 56 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-24 04:45:58,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 350 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-24 04:45:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-12-24 04:45:58,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2023-12-24 04:45:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 137 states have (on average 1.3503649635036497) internal successors, (185), 137 states have internal predecessors, (185), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-24 04:45:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 371 transitions. [2023-12-24 04:45:58,148 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 371 transitions. Word has length 192 [2023-12-24 04:45:58,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 04:45:58,149 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 371 transitions. [2023-12-24 04:45:58,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-24 04:45:58,149 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 371 transitions. [2023-12-24 04:45:58,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-24 04:45:58,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 04:45:58,151 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 04:45:58,162 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 [2023-12-24 04:45:58,361 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 [2023-12-24 04:45:58,362 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 04:45:58,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 04:45:58,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1617416509, now seen corresponding path program 1 times [2023-12-24 04:45:58,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 04:45:58,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936368177] [2023-12-24 04:45:58,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 04:45:58,364 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 [2023-12-24 04:45:58,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 04:45:58,365 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) [2023-12-24 04:45:58,376 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 [2023-12-24 04:45:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 04:45:59,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-24 04:45:59,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 04:46:33,284 WARN L293 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 04:47:22,300 WARN L293 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 86 DAG size of output: 88 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 04:47:55,911 WARN L293 SmtUtils]: Spent 8.99s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 04:48:38,278 WARN L293 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 94 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 04:49:38,447 WARN L293 SmtUtils]: Spent 14.05s on a formula simplification. DAG size of input: 97 DAG size of output: 99 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 04:51:24,561 WARN L293 SmtUtils]: Spent 33.97s on a formula simplification that was a NOOP. DAG size: 100 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 04:53:04,941 WARN L293 SmtUtils]: Spent 36.99s on a formula simplification. DAG size of input: 102 DAG size of output: 105 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 04:55:01,615 WARN L293 SmtUtils]: Spent 40.41s on a formula simplification that was a NOOP. DAG size: 118 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-24 04:58:12,200 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 [2023-12-24 04:58:12,201 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 [2023-12-24 04:58:13,232 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 [2023-12-24 04:58:13,404 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 [2023-12-24 04:58:13,517 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown