/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_codestructure_normal_file-88.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 21:32:03,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 21:32:03,565 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 21:32:03,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 21:32:03,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 21:32:03,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 21:32:03,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 21:32:03,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 21:32:03,598 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 21:32:03,601 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 21:32:03,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 21:32:03,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 21:32:03,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 21:32:03,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 21:32:03,603 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 21:32:03,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 21:32:03,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 21:32:03,604 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 21:32:03,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 21:32:03,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 21:32:03,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 21:32:03,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 21:32:03,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 21:32:03,606 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 21:32:03,606 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 21:32:03,606 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 21:32:03,606 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 21:32:03,606 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 21:32:03,606 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 21:32:03,607 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 21:32:03,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 21:32:03,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 21:32:03,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 21:32:03,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 21:32:03,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 21:32:03,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 21:32:03,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 21:32:03,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 21:32:03,608 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 21:32:03,608 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 21:32:03,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 21:32:03,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 21:32:03,609 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 21:32:03,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 21:32:03,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 21:32:03,609 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 21:32:03,609 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 21:32:03,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 21:32:03,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 21:32:03,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 21:32:03,830 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 21:32:03,830 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 21:32:03,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_normal_file-88.i [2023-12-22 21:32:04,869 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 21:32:05,029 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 21:32:05,030 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_normal_file-88.i [2023-12-22 21:32:05,042 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e1931e10/3b640a66997a41b2b855268b9fa93022/FLAG3fc76bf26 [2023-12-22 21:32:05,052 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e1931e10/3b640a66997a41b2b855268b9fa93022 [2023-12-22 21:32:05,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 21:32:05,055 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 21:32:05,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 21:32:05,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 21:32:05,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 21:32:05,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1335a4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05, skipping insertion in model container [2023-12-22 21:32:05,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,093 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 21:32:05,211 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_codestructure_normal_file-88.i[913,926] [2023-12-22 21:32:05,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 21:32:05,286 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 21:32:05,298 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_codestructure_normal_file-88.i[913,926] [2023-12-22 21:32:05,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 21:32:05,349 INFO L206 MainTranslator]: Completed translation [2023-12-22 21:32:05,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05 WrapperNode [2023-12-22 21:32:05,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 21:32:05,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 21:32:05,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 21:32:05,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 21:32:05,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,392 INFO L138 Inliner]: procedures = 27, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-12-22 21:32:05,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 21:32:05,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 21:32:05,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 21:32:05,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 21:32:05,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,405 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,423 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]. [2023-12-22 21:32:05,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,423 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 21:32:05,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 21:32:05,437 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 21:32:05,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 21:32:05,438 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (1/1) ... [2023-12-22 21:32:05,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 21:32:05,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 21:32:05,515 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) [2023-12-22 21:32:05,518 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 [2023-12-22 21:32:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 21:32:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 21:32:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-22 21:32:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-22 21:32:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 21:32:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 21:32:05,618 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 21:32:05,619 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 21:32:28,652 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 21:32:28,697 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 21:32:28,698 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 21:32:28,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:32:28 BoogieIcfgContainer [2023-12-22 21:32:28,698 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 21:32:28,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 21:32:28,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 21:32:28,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 21:32:28,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 09:32:05" (1/3) ... [2023-12-22 21:32:28,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54004068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:32:28, skipping insertion in model container [2023-12-22 21:32:28,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:32:05" (2/3) ... [2023-12-22 21:32:28,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54004068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:32:28, skipping insertion in model container [2023-12-22 21:32:28,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:32:28" (3/3) ... [2023-12-22 21:32:28,704 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-88.i [2023-12-22 21:32:28,715 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 21:32:28,715 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 21:32:28,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 21:32:28,758 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;@3596620f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 21:32:28,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 21:32:28,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 40 states have internal predecessors, (55), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-22 21:32:28,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-22 21:32:28,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 21:32:28,775 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 21:32:28,776 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 21:32:28,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 21:32:28,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1211062428, now seen corresponding path program 1 times [2023-12-22 21:32:28,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 21:32:28,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696151130] [2023-12-22 21:32:28,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 21:32:28,794 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 [2023-12-22 21:32:28,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 21:32:28,813 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) [2023-12-22 21:32:28,814 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 [2023-12-22 21:32:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 21:32:29,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 21:32:29,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 21:32:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 798 proven. 0 refuted. 0 times theorem prover too weak. 1186 trivial. 0 not checked. [2023-12-22 21:32:29,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 21:32:29,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 21:32:29,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696151130] [2023-12-22 21:32:29,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696151130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 21:32:29,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 21:32:29,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 21:32:29,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169428000] [2023-12-22 21:32:29,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 21:32:29,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 21:32:29,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 21:32:29,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 21:32:29,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 21:32:29,500 INFO L87 Difference]: Start difference. First operand has 74 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 40 states have internal predecessors, (55), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-22 21:32:34,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 21:32:34,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 21:32:34,450 INFO L93 Difference]: Finished difference Result 145 states and 268 transitions. [2023-12-22 21:32:34,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 21:32:34,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 189 [2023-12-22 21:32:34,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 21:32:34,786 INFO L225 Difference]: With dead ends: 145 [2023-12-22 21:32:34,786 INFO L226 Difference]: Without dead ends: 72 [2023-12-22 21:32:34,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 21:32:34,792 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-22 21:32:34,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-12-22 21:32:34,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-22 21:32:34,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-12-22 21:32:34,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 38 states have internal predecessors, (50), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-22 21:32:34,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 114 transitions. [2023-12-22 21:32:34,826 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 114 transitions. Word has length 189 [2023-12-22 21:32:34,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 21:32:34,826 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 114 transitions. [2023-12-22 21:32:34,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-22 21:32:34,826 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 114 transitions. [2023-12-22 21:32:34,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-22 21:32:34,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 21:32:34,829 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 21:32:34,844 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 [2023-12-22 21:32:35,043 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 [2023-12-22 21:32:35,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 21:32:35,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 21:32:35,045 INFO L85 PathProgramCache]: Analyzing trace with hash 420881056, now seen corresponding path program 1 times [2023-12-22 21:32:35,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 21:32:35,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582171014] [2023-12-22 21:32:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 21:32:35,047 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 [2023-12-22 21:32:35,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 21:32:35,048 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) [2023-12-22 21:32:35,053 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 [2023-12-22 21:32:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 21:32:35,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 21:32:35,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 21:32:38,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 891 proven. 63 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2023-12-22 21:32:38,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 21:32:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 30 proven. 63 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2023-12-22 21:32:39,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 21:32:39,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582171014] [2023-12-22 21:32:39,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582171014] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 21:32:39,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 21:32:39,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-22 21:32:39,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226380945] [2023-12-22 21:32:39,877 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 21:32:39,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 21:32:39,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 21:32:39,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 21:32:39,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-22 21:32:39,879 INFO L87 Difference]: Start difference. First operand 72 states and 114 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-12-22 21:32:47,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 21:32:51,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 21:32:55,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 21:32:55,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 21:32:55,491 INFO L93 Difference]: Finished difference Result 151 states and 234 transitions. [2023-12-22 21:32:55,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 21:32:55,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 189 [2023-12-22 21:32:55,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 21:32:55,834 INFO L225 Difference]: With dead ends: 151 [2023-12-22 21:32:55,834 INFO L226 Difference]: Without dead ends: 80 [2023-12-22 21:32:55,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 370 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-22 21:32:55,836 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 104 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 56 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-12-22 21:32:55,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 157 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 166 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2023-12-22 21:32:55,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-12-22 21:32:55,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2023-12-22 21:32:55,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-22 21:32:55,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 116 transitions. [2023-12-22 21:32:55,857 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 116 transitions. Word has length 189 [2023-12-22 21:32:55,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 21:32:55,858 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 116 transitions. [2023-12-22 21:32:55,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-12-22 21:32:55,858 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 116 transitions. [2023-12-22 21:32:55,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-22 21:32:55,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 21:32:55,860 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 21:32:55,880 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 [2023-12-22 21:32:56,077 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 [2023-12-22 21:32:56,078 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 21:32:56,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 21:32:56,078 INFO L85 PathProgramCache]: Analyzing trace with hash 422728098, now seen corresponding path program 1 times [2023-12-22 21:32:56,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 21:32:56,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476380655] [2023-12-22 21:32:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 21:32:56,079 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 [2023-12-22 21:32:56,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 21:32:56,083 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) [2023-12-22 21:32:56,083 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 [2023-12-22 21:32:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 21:32:56,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-22 21:32:56,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 21:33:07,567 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:33:15,821 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:33:24,084 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:33:32,253 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:33:36,332 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~var_1_8~0 c_~var_1_11~0) (not (fp.gt c_~var_1_1~0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0) c_~var_1_5~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 53.0 10.0))))) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 2.0)) c_~var_1_2~0)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv0 32))) is different from false [2023-12-22 21:33:40,406 WARN L876 $PredicateComparison]: unable to prove that (and (= c_~var_1_8~0 c_~var_1_11~0) (not (fp.gt c_~var_1_1~0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0) c_~var_1_5~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 53.0 10.0))))) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 2.0)) c_~var_1_2~0)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv0 32))) is different from true [2023-12-22 21:33:49,601 WARN L293 SmtUtils]: Spent 9.19s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:33:58,823 WARN L293 SmtUtils]: Spent 9.22s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:34:08,046 WARN L293 SmtUtils]: Spent 9.22s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:34:16,847 WARN L293 SmtUtils]: Spent 8.80s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:34:25,964 WARN L293 SmtUtils]: Spent 9.12s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:34:30,299 WARN L854 $PredicateComparison]: unable to prove that (and (not (fp.lt (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (fp.neg c_~var_1_4~0)) ((_ to_fp 11 53) c_currentRoundingMode (/ 99.0 4.0))) c_~var_1_6~0)) (= c_~var_1_8~0 c_~var_1_11~0) (not (fp.gt c_~var_1_1~0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0) c_~var_1_5~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 53.0 10.0))))) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 2.0)) c_~var_1_2~0)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv0 32))) is different from false [2023-12-22 21:34:34,648 WARN L876 $PredicateComparison]: unable to prove that (and (not (fp.lt (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (fp.neg c_~var_1_4~0)) ((_ to_fp 11 53) c_currentRoundingMode (/ 99.0 4.0))) c_~var_1_6~0)) (= c_~var_1_8~0 c_~var_1_11~0) (not (fp.gt c_~var_1_1~0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0) c_~var_1_5~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 53.0 10.0))))) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 2.0)) c_~var_1_2~0)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv0 32))) is different from true [2023-12-22 21:34:43,879 WARN L293 SmtUtils]: Spent 9.23s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:34:53,176 WARN L293 SmtUtils]: Spent 9.30s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:35:02,438 WARN L293 SmtUtils]: Spent 9.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:35:11,715 WARN L293 SmtUtils]: Spent 9.28s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:35:20,964 WARN L293 SmtUtils]: Spent 9.25s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:35:29,814 WARN L293 SmtUtils]: Spent 8.85s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:35:38,967 WARN L293 SmtUtils]: Spent 9.15s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:35:43,307 WARN L854 $PredicateComparison]: unable to prove that (and (not (fp.lt (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (fp.neg c_~var_1_4~0)) ((_ to_fp 11 53) c_currentRoundingMode (/ 99.0 4.0))) c_~var_1_6~0)) (= c_~var_1_18~0 c_~var_1_14~0) (not (bvslt ((_ zero_extend 24) c_~var_1_15~0) (bvmul ((_ zero_extend 24) c_~var_1_17~0) (bvsdiv ((_ sign_extend 24) c_~var_1_12~0) ((_ zero_extend 24) c_~var_1_16~0))))) (= c_~var_1_8~0 c_~var_1_11~0) (not (fp.gt c_~var_1_1~0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0) c_~var_1_5~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 53.0 10.0))))) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 2.0)) c_~var_1_2~0)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv0 32))) is different from false [2023-12-22 21:35:47,649 WARN L876 $PredicateComparison]: unable to prove that (and (not (fp.lt (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (fp.neg c_~var_1_4~0)) ((_ to_fp 11 53) c_currentRoundingMode (/ 99.0 4.0))) c_~var_1_6~0)) (= c_~var_1_18~0 c_~var_1_14~0) (not (bvslt ((_ zero_extend 24) c_~var_1_15~0) (bvmul ((_ zero_extend 24) c_~var_1_17~0) (bvsdiv ((_ sign_extend 24) c_~var_1_12~0) ((_ zero_extend 24) c_~var_1_16~0))))) (= c_~var_1_8~0 c_~var_1_11~0) (not (fp.gt c_~var_1_1~0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0) c_~var_1_5~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 53.0 10.0))))) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 2.0)) c_~var_1_2~0)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv0 32))) is different from true [2023-12-22 21:35:56,879 WARN L293 SmtUtils]: Spent 9.23s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:36:06,143 WARN L293 SmtUtils]: Spent 9.26s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:36:15,429 WARN L293 SmtUtils]: Spent 9.28s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:36:24,732 WARN L293 SmtUtils]: Spent 9.30s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:36:34,002 WARN L293 SmtUtils]: Spent 9.27s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:36:42,858 WARN L293 SmtUtils]: Spent 8.85s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:36:52,052 WARN L293 SmtUtils]: Spent 9.19s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:37:01,344 WARN L293 SmtUtils]: Spent 9.29s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:37:10,650 WARN L293 SmtUtils]: Spent 9.31s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:37:19,972 WARN L293 SmtUtils]: Spent 9.32s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:37:29,292 WARN L293 SmtUtils]: Spent 9.32s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:37:38,594 WARN L293 SmtUtils]: Spent 9.30s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:37:47,885 WARN L293 SmtUtils]: Spent 9.29s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:37:56,752 WARN L293 SmtUtils]: Spent 8.87s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:38:05,941 WARN L293 SmtUtils]: Spent 9.19s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:38:15,283 WARN L293 SmtUtils]: Spent 9.34s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-22 21:38:19,646 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_15~0))) (and (not (fp.lt (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (fp.neg c_~var_1_4~0)) ((_ to_fp 11 53) c_currentRoundingMode (/ 99.0 4.0))) c_~var_1_6~0)) (not (= (bvshl ((_ zero_extend 24) c_~var_1_18~0) .cse0) ((_ zero_extend 24) c_~var_1_19~0))) (= c_~var_1_18~0 c_~var_1_14~0) (= c_~var_1_22~0 (_ bv64 8)) (not (bvslt .cse0 (bvmul ((_ zero_extend 24) c_~var_1_17~0) (bvsdiv ((_ sign_extend 24) c_~var_1_12~0) ((_ zero_extend 24) c_~var_1_16~0))))) (= c_~var_1_8~0 c_~var_1_11~0) (not (fp.gt c_~var_1_1~0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0) c_~var_1_5~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 53.0 10.0))))) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 2.0)) c_~var_1_2~0)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv0 32)))) is different from false [2023-12-22 21:38:24,019 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_15~0))) (and (not (fp.lt (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (fp.neg c_~var_1_4~0)) ((_ to_fp 11 53) c_currentRoundingMode (/ 99.0 4.0))) c_~var_1_6~0)) (not (= (bvshl ((_ zero_extend 24) c_~var_1_18~0) .cse0) ((_ zero_extend 24) c_~var_1_19~0))) (= c_~var_1_18~0 c_~var_1_14~0) (= c_~var_1_22~0 (_ bv64 8)) (not (bvslt .cse0 (bvmul ((_ zero_extend 24) c_~var_1_17~0) (bvsdiv ((_ sign_extend 24) c_~var_1_12~0) ((_ zero_extend 24) c_~var_1_16~0))))) (= c_~var_1_8~0 c_~var_1_11~0) (not (fp.gt c_~var_1_1~0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0) c_~var_1_5~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 53.0 10.0))))) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 2.0)) c_~var_1_2~0)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv0 32)))) is different from true