/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_amount50_file-71.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 11:04:26,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 11:04:26,721 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 11:04:26,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 11:04:26,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 11:04:26,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 11:04:26,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 11:04:26,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 11:04:26,749 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 11:04:26,749 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 11:04:26,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 11:04:26,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 11:04:26,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 11:04:26,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 11:04:26,751 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 11:04:26,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 11:04:26,751 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 11:04:26,751 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 11:04:26,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 11:04:26,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 11:04:26,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 11:04:26,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 11:04:26,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 11:04:26,759 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 11:04:26,759 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 11:04:26,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 11:04:26,760 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 11:04:26,760 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 11:04:26,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 11:04:26,760 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 11:04:26,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 11:04:26,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 11:04:26,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 11:04:26,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 11:04:26,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 11:04:26,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 11:04:26,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 11:04:26,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 11:04:26,762 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 11:04:26,762 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 11:04:26,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 11:04:26,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 11:04:26,763 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 11:04:26,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 11:04:26,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 11:04:26,763 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 11:04:26,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 11:04:26,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 11:04:26,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 11:04:26,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 11:04:26,943 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 11:04:26,943 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 11:04:26,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-71.i [2023-12-24 11:04:28,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 11:04:28,356 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 11:04:28,357 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-71.i [2023-12-24 11:04:28,364 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac4929e2/d08584f0e2194f92b10bb04ff1fc2bcd/FLAGa243e725d [2023-12-24 11:04:28,374 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac4929e2/d08584f0e2194f92b10bb04ff1fc2bcd [2023-12-24 11:04:28,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 11:04:28,377 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 11:04:28,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 11:04:28,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 11:04:28,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 11:04:28,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a9e786e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28, skipping insertion in model container [2023-12-24 11:04:28,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,419 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 11:04:28,555 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_amount50_file-71.i[915,928] [2023-12-24 11:04:28,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 11:04:28,617 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 11:04:28,636 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_amount50_file-71.i[915,928] [2023-12-24 11:04:28,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 11:04:28,688 INFO L206 MainTranslator]: Completed translation [2023-12-24 11:04:28,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28 WrapperNode [2023-12-24 11:04:28,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 11:04:28,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 11:04:28,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 11:04:28,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 11:04:28,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,735 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2023-12-24 11:04:28,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 11:04:28,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 11:04:28,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 11:04:28,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 11:04:28,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,760 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,775 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 11:04:28,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 11:04:28,815 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 11:04:28,815 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 11:04:28,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 11:04:28,816 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (1/1) ... [2023-12-24 11:04:28,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 11:04:28,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 11:04:28,862 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 11:04:28,888 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 11:04:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 11:04:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 11:04:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 11:04:28,893 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 11:04:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 11:04:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 11:04:28,980 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 11:04:28,983 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 11:04:38,351 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 11:04:38,411 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 11:04:38,412 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 11:04:38,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:04:38 BoogieIcfgContainer [2023-12-24 11:04:38,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 11:04:38,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 11:04:38,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 11:04:38,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 11:04:38,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 11:04:28" (1/3) ... [2023-12-24 11:04:38,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fab61d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:04:38, skipping insertion in model container [2023-12-24 11:04:38,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:04:28" (2/3) ... [2023-12-24 11:04:38,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fab61d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:04:38, skipping insertion in model container [2023-12-24 11:04:38,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:04:38" (3/3) ... [2023-12-24 11:04:38,423 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-71.i [2023-12-24 11:04:38,436 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 11:04:38,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 11:04:38,475 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 11:04:38,480 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;@461e8e8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 11:04:38,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 11:04:38,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 32 states have (on average 1.40625) internal successors, (45), 33 states have internal predecessors, (45), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-24 11:04:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-24 11:04:38,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 11:04:38,492 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:38,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 11:04:38,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 11:04:38,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1171547984, now seen corresponding path program 1 times [2023-12-24 11:04:38,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 11:04:38,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794424169] [2023-12-24 11:04:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 11:04:38,507 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 11:04:38,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 11:04:38,509 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 11:04:38,513 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 11:04:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 11:04:38,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 11:04:38,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 11:04:39,026 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-12-24 11:04:39,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 11:04:39,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 11:04:39,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794424169] [2023-12-24 11:04:39,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794424169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 11:04:39,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 11:04:39,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 11:04:39,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031578596] [2023-12-24 11:04:39,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 11:04:39,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 11:04:39,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 11:04:39,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 11:04:39,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 11:04:39,057 INFO L87 Difference]: Start difference. First operand has 56 states, 32 states have (on average 1.40625) internal successors, (45), 33 states have internal predecessors, (45), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-24 11:04:43,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 11:04:43,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 11:04:43,347 INFO L93 Difference]: Finished difference Result 109 states and 193 transitions. [2023-12-24 11:04:43,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 11:04:43,439 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2023-12-24 11:04:43,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 11:04:43,444 INFO L225 Difference]: With dead ends: 109 [2023-12-24 11:04:43,444 INFO L226 Difference]: Without dead ends: 54 [2023-12-24 11:04:43,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 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 11:04:43,454 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-24 11:04:43,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2023-12-24 11:04:43,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-24 11:04:43,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-12-24 11:04:43,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-24 11:04:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 82 transitions. [2023-12-24 11:04:43,487 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 82 transitions. Word has length 129 [2023-12-24 11:04:43,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 11:04:43,487 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 82 transitions. [2023-12-24 11:04:43,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-24 11:04:43,488 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 82 transitions. [2023-12-24 11:04:43,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-24 11:04:43,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 11:04:43,491 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:43,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-24 11:04:43,703 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 11:04:43,703 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 11:04:43,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 11:04:43,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1030626834, now seen corresponding path program 1 times [2023-12-24 11:04:43,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 11:04:43,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257172065] [2023-12-24 11:04:43,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 11:04:43,705 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 11:04:43,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 11:04:43,706 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 11:04:43,711 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 11:04:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 11:04:44,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 11:04:44,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 11:04:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-24 11:04:47,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 11:04:47,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 11:04:47,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257172065] [2023-12-24 11:04:47,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257172065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 11:04:47,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 11:04:47,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 11:04:47,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640401191] [2023-12-24 11:04:47,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 11:04:47,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 11:04:47,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 11:04:47,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 11:04:47,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-24 11:04:47,421 INFO L87 Difference]: Start difference. First operand 54 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-24 11:04:52,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 11:04:56,767 WARN L539 Checker$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 [0] [2023-12-24 11:04:58,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 11:05:01,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 11:05:01,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 11:05:01,208 INFO L93 Difference]: Finished difference Result 161 states and 245 transitions. [2023-12-24 11:05:01,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 11:05:01,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 129 [2023-12-24 11:05:01,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 11:05:01,288 INFO L225 Difference]: With dead ends: 161 [2023-12-24 11:05:01,288 INFO L226 Difference]: Without dead ends: 108 [2023-12-24 11:05:01,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-24 11:05:01,289 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 61 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 43 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-12-24 11:05:01,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 240 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 65 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2023-12-24 11:05:01,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-24 11:05:01,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 93. [2023-12-24 11:05:01,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-24 11:05:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 142 transitions. [2023-12-24 11:05:01,308 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 142 transitions. Word has length 129 [2023-12-24 11:05:01,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 11:05:01,308 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 142 transitions. [2023-12-24 11:05:01,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-24 11:05:01,308 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 142 transitions. [2023-12-24 11:05:01,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-24 11:05:01,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 11:05:01,310 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:01,325 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 11:05:01,516 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 11:05:01,517 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 11:05:01,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 11:05:01,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1423653844, now seen corresponding path program 1 times [2023-12-24 11:05:01,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 11:05:01,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874973753] [2023-12-24 11:05:01,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 11:05:01,518 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 11:05:01,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 11:05:01,520 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 11:05:01,521 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 11:05:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 11:05:01,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-24 11:05:01,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 11:05:33,834 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:05:50,026 WARN L293 SmtUtils]: Spent 5.84s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:05:58,168 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:06:14,765 WARN L293 SmtUtils]: Spent 7.25s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:06:20,410 WARN L293 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:06:26,058 WARN L293 SmtUtils]: Spent 5.65s 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) [2023-12-24 11:06:35,403 WARN L293 SmtUtils]: Spent 6.91s 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) [2023-12-24 11:06:42,062 WARN L293 SmtUtils]: Spent 6.66s 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) [2023-12-24 11:06:47,146 WARN L293 SmtUtils]: Spent 5.08s 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) [2023-12-24 11:06:51,235 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 24) c_~var_1_5~0))) (and (bvslt .cse0 ((_ zero_extend 16) c_~var_1_1~0)) (= c_~last_1_var_1_20~0 (_ bv10 16)) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq c_~var_1_11~0 (fp.neg .cse1)) (fp.leq c_~var_1_11~0 (fp.neg .cse2))) (and (fp.leq c_~var_1_11~0 .cse1) (fp.geq c_~var_1_11~0 .cse2)))) (let ((.cse5 ((_ sign_extend 24) c_~var_1_4~0)) (.cse7 (bvadd ((_ sign_extend 16) c_~var_1_15~0) (bvneg (bvadd (bvneg ((_ sign_extend 16) c_~var_1_17~0)) ((_ sign_extend 16) c_~var_1_16~0)))))) (let ((.cse6 (= ((_ extract 15 0) .cse7) c_~var_1_14~0)) (.cse3 (bvsgt .cse5 .cse0))) (or (and .cse3 (let ((.cse4 (bvslt .cse5 .cse7))) (or (and .cse4 (= ((_ extract 15 0) .cse5) c_~var_1_14~0)) (and (not .cse4) .cse6)))) (and (let ((.cse8 (bvslt .cse0 .cse7))) (or (and (= ((_ extract 15 0) .cse0) c_~var_1_14~0) .cse8) (and (not .cse8) .cse6))) (not .cse3))))) (= c_~var_1_11~0 c_~var_1_10~0) (not (= (_ bv0 8) c_~var_1_2~0)) (not (fp.geq c_~last_1_var_1_12~0 (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode c_~var_1_11~0 c_~var_1_13~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 319.0 10.0))))) (= (_ bv16 16) c_~last_1_var_1_21~0) (= (_ bv32 16) c_~last_1_var_1_14~0) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-12-24 11:06:55,324 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 24) c_~var_1_5~0))) (and (bvslt .cse0 ((_ zero_extend 16) c_~var_1_1~0)) (= c_~last_1_var_1_20~0 (_ bv10 16)) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq c_~var_1_11~0 (fp.neg .cse1)) (fp.leq c_~var_1_11~0 (fp.neg .cse2))) (and (fp.leq c_~var_1_11~0 .cse1) (fp.geq c_~var_1_11~0 .cse2)))) (let ((.cse5 ((_ sign_extend 24) c_~var_1_4~0)) (.cse7 (bvadd ((_ sign_extend 16) c_~var_1_15~0) (bvneg (bvadd (bvneg ((_ sign_extend 16) c_~var_1_17~0)) ((_ sign_extend 16) c_~var_1_16~0)))))) (let ((.cse6 (= ((_ extract 15 0) .cse7) c_~var_1_14~0)) (.cse3 (bvsgt .cse5 .cse0))) (or (and .cse3 (let ((.cse4 (bvslt .cse5 .cse7))) (or (and .cse4 (= ((_ extract 15 0) .cse5) c_~var_1_14~0)) (and (not .cse4) .cse6)))) (and (let ((.cse8 (bvslt .cse0 .cse7))) (or (and (= ((_ extract 15 0) .cse0) c_~var_1_14~0) .cse8) (and (not .cse8) .cse6))) (not .cse3))))) (= c_~var_1_11~0 c_~var_1_10~0) (not (= (_ bv0 8) c_~var_1_2~0)) (not (fp.geq c_~last_1_var_1_12~0 (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode c_~var_1_11~0 c_~var_1_13~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 319.0 10.0))))) (= (_ bv16 16) c_~last_1_var_1_21~0) (= (_ bv32 16) c_~last_1_var_1_14~0) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2023-12-24 11:07:03,441 WARN L293 SmtUtils]: Spent 6.69s 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) [2023-12-24 11:07:16,368 WARN L293 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:07:27,601 WARN L293 SmtUtils]: Spent 7.99s 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) [2023-12-24 11:07:47,259 WARN L293 SmtUtils]: Spent 8.30s 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) [2023-12-24 11:07:52,613 WARN L293 SmtUtils]: Spent 5.35s 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) [2023-12-24 11:08:01,712 WARN L293 SmtUtils]: Spent 7.02s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:08:07,606 WARN L293 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:08:25,012 WARN L293 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:08:51,803 WARN L293 SmtUtils]: Spent 7.90s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:09:03,128 WARN L293 SmtUtils]: Spent 5.03s 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) [2023-12-24 11:09:11,425 WARN L293 SmtUtils]: Spent 5.21s 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) [2023-12-24 11:09:23,040 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 24) c_~var_1_5~0))) (and (= ((_ sign_extend 8) c_~var_1_5~0) c_~var_1_21~0) (bvslt .cse0 ((_ zero_extend 16) c_~var_1_1~0)) (= c_~last_1_var_1_20~0 (_ bv10 16)) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq c_~var_1_11~0 (fp.neg .cse1)) (fp.leq c_~var_1_11~0 (fp.neg .cse2))) (and (fp.leq c_~var_1_11~0 .cse1) (fp.geq c_~var_1_11~0 .cse2)))) (let ((.cse5 ((_ sign_extend 24) c_~var_1_4~0)) (.cse7 (bvadd ((_ sign_extend 16) c_~var_1_15~0) (bvneg (bvadd (bvneg ((_ sign_extend 16) c_~var_1_17~0)) ((_ sign_extend 16) c_~var_1_16~0)))))) (let ((.cse6 (= ((_ extract 15 0) .cse7) c_~var_1_14~0)) (.cse3 (bvsgt .cse5 .cse0))) (or (and .cse3 (let ((.cse4 (bvslt .cse5 .cse7))) (or (and .cse4 (= ((_ extract 15 0) .cse5) c_~var_1_14~0)) (and (not .cse4) .cse6)))) (and (let ((.cse8 (bvslt .cse0 .cse7))) (or (and (= ((_ extract 15 0) .cse0) c_~var_1_14~0) .cse8) (and (not .cse8) .cse6))) (not .cse3))))) (= c_~var_1_11~0 c_~var_1_10~0) (let ((.cse10 ((_ to_fp 8 24) c_currentRoundingMode (/ 511.0 2.0)))) (let ((.cse9 (fp.gt .cse10 c_~var_1_11~0))) (or (and (= c_~var_1_18~0 c_~var_1_11~0) (not .cse9)) (and (= c_~var_1_18~0 .cse10) .cse9)))) (not (= (_ bv0 8) c_~var_1_2~0)) (not (fp.geq c_~last_1_var_1_12~0 (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode c_~var_1_11~0 c_~var_1_13~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 319.0 10.0))))) (= c_~var_1_15~0 c_~var_1_20~0) (= (_ bv16 16) c_~last_1_var_1_21~0) (= c_~var_1_23~0 c_~var_1_22~0) (= (_ bv32 16) c_~last_1_var_1_14~0) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-12-24 11:09:34,501 WARN L293 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:09:43,741 WARN L293 SmtUtils]: Spent 5.43s 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) [2023-12-24 11:09:54,429 WARN L293 SmtUtils]: Spent 7.21s 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) [2023-12-24 11:10:03,019 WARN L293 SmtUtils]: Spent 6.33s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:10:19,071 WARN L293 SmtUtils]: Spent 7.86s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:10:28,316 WARN L293 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:10:38,427 WARN L293 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:11:07,154 WARN L293 SmtUtils]: Spent 5.26s 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) [2023-12-24 11:11:18,108 WARN L293 SmtUtils]: Spent 6.62s 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) [2023-12-24 11:11:26,314 WARN L293 SmtUtils]: Spent 8.21s 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) [2023-12-24 11:11:33,407 WARN L293 SmtUtils]: Spent 7.09s 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) [2023-12-24 11:11:38,546 WARN L293 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:11:43,631 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:11:51,091 WARN L293 SmtUtils]: Spent 7.46s 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) [2023-12-24 11:12:05,118 WARN L293 SmtUtils]: Spent 8.30s 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) [2023-12-24 11:12:13,017 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 24) c_~var_1_5~0))) (and (= ((_ sign_extend 8) c_~var_1_5~0) c_~var_1_21~0) (bvslt .cse0 ((_ zero_extend 16) c_~var_1_1~0)) (= c_~last_1_var_1_20~0 (_ bv10 16)) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq c_~var_1_11~0 (fp.neg .cse1)) (fp.leq c_~var_1_11~0 (fp.neg .cse2))) (and (fp.leq c_~var_1_11~0 .cse1) (fp.geq c_~var_1_11~0 .cse2)))) (let ((.cse5 ((_ sign_extend 24) c_~var_1_4~0)) (.cse7 (bvadd ((_ sign_extend 16) c_~var_1_15~0) (bvneg (bvadd (bvneg ((_ sign_extend 16) c_~var_1_17~0)) ((_ sign_extend 16) c_~var_1_16~0)))))) (let ((.cse6 (= ((_ extract 15 0) .cse7) c_~var_1_14~0)) (.cse3 (bvsgt .cse5 .cse0))) (or (and .cse3 (let ((.cse4 (bvslt .cse5 .cse7))) (or (and .cse4 (= ((_ extract 15 0) .cse5) c_~var_1_14~0)) (and (not .cse4) .cse6)))) (and (let ((.cse8 (bvslt .cse0 .cse7))) (or (and (= ((_ extract 15 0) .cse0) c_~var_1_14~0) .cse8) (and (not .cse8) .cse6))) (not .cse3))))) (= c_~var_1_11~0 c_~var_1_10~0) (let ((.cse10 ((_ to_fp 8 24) c_currentRoundingMode (/ 511.0 2.0)))) (let ((.cse9 (fp.gt .cse10 c_~var_1_11~0))) (or (and (= c_~var_1_18~0 c_~var_1_11~0) (not .cse9)) (and (= c_~var_1_18~0 .cse10) .cse9)))) (not (= (_ bv0 8) c_~var_1_2~0)) (= c_~var_1_19~0 .cse0) (not (fp.geq c_~last_1_var_1_12~0 (fp.div c_currentRoundingMode (fp.div c_currentRoundingMode c_~var_1_11~0 c_~var_1_13~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 319.0 10.0))))) (= c_~var_1_15~0 c_~var_1_20~0) (= (_ bv16 16) c_~last_1_var_1_21~0) (= c_~var_1_23~0 c_~var_1_22~0) (= c_~var_1_3~0 (_ bv0 8)) (= (_ bv32 16) c_~last_1_var_1_14~0) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true Received shutdown request... [2023-12-24 11:16:03,772 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 11:16:03,773 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 11:16:04,839 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 11:16:04,980 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 11:16:05,060 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