/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-65.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:31:59,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:31:59,092 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 14:31:59,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:31:59,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:31:59,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:31:59,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:31:59,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:31:59,127 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:31:59,132 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:31:59,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:31:59,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:31:59,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:31:59,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:31:59,134 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:31:59,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:31:59,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:31:59,135 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:31:59,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:31:59,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:31:59,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:31:59,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:31:59,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:31:59,137 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:31:59,137 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:31:59,137 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:31:59,137 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:31:59,137 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:31:59,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:31:59,137 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:31:59,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:31:59,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:31:59,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:31:59,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:31:59,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:31:59,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:31:59,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:31:59,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:31:59,139 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:31:59,139 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:31:59,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:31:59,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:31:59,140 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:31:59,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:31:59,140 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:31:59,140 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:31:59,140 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:31:59,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:31:59,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:31:59,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:31:59,336 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:31:59,336 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:31:59,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-65.i [2023-12-16 14:32:00,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:32:00,515 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:32:00,515 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-65.i [2023-12-16 14:32:00,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ab3b69d/bae1fa3cf9ce4a1a9626cf689e3f6d5b/FLAG95cc877eb [2023-12-16 14:32:00,542 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ab3b69d/bae1fa3cf9ce4a1a9626cf689e3f6d5b [2023-12-16 14:32:00,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:32:00,546 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:32:00,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:32:00,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:32:00,550 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:32:00,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ce1a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00, skipping insertion in model container [2023-12-16 14:32:00,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,583 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:32:00,677 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-65.i[916,929] [2023-12-16 14:32:00,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:32:00,779 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:32:00,791 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-65.i[916,929] [2023-12-16 14:32:00,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:32:00,845 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:32:00,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00 WrapperNode [2023-12-16 14:32:00,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:32:00,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:32:00,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:32:00,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:32:00,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,895 INFO L138 Inliner]: procedures = 27, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2023-12-16 14:32:00,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:32:00,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:32:00,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:32:00,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:32:00,904 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,921 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 14:32:00,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:32:00,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:32:00,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:32:00,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:32:00,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (1/1) ... [2023-12-16 14:32:00,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:32:00,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:32:00,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 14:32:01,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 14:32:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:32:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:32:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:32:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:32:01,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:32:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:32:01,120 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:32:01,122 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:32:14,198 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:32:14,249 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:32:14,249 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:32:14,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:32:14 BoogieIcfgContainer [2023-12-16 14:32:14,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:32:14,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:32:14,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:32:14,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:32:14,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:32:00" (1/3) ... [2023-12-16 14:32:14,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64233a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:32:14, skipping insertion in model container [2023-12-16 14:32:14,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:32:00" (2/3) ... [2023-12-16 14:32:14,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64233a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:32:14, skipping insertion in model container [2023-12-16 14:32:14,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:32:14" (3/3) ... [2023-12-16 14:32:14,255 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-65.i [2023-12-16 14:32:14,268 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:32:14,268 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:32:14,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:32:14,327 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;@4914200b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:32:14,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:32:14,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 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) [2023-12-16 14:32:14,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-16 14:32:14,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:32:14,350 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:32:14,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:32:14,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:32:14,355 INFO L85 PathProgramCache]: Analyzing trace with hash 493026370, now seen corresponding path program 1 times [2023-12-16 14:32:14,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:32:14,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118599591] [2023-12-16 14:32:14,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:14,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:14,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:32:14,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:32:14,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 14:32:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:14,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:32:14,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:32:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 942 proven. 0 refuted. 0 times theorem prover too weak. 1042 trivial. 0 not checked. [2023-12-16 14:32:14,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:32:14,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:32:14,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118599591] [2023-12-16 14:32:14,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118599591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:32:14,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:32:14,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:32:14,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835805830] [2023-12-16 14:32:14,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:32:14,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:32:14,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:32:14,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:32:14,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:32:14,937 INFO L87 Difference]: Start difference. First operand has 89 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 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 24.5) internal successors, (49), 2 states have internal predecessors, (49), 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) [2023-12-16 14:32:19,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:32:19,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:32:19,241 INFO L93 Difference]: Finished difference Result 175 states and 316 transitions. [2023-12-16 14:32:19,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:32:19,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 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 202 [2023-12-16 14:32:19,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:32:19,332 INFO L225 Difference]: With dead ends: 175 [2023-12-16 14:32:19,332 INFO L226 Difference]: Without dead ends: 87 [2023-12-16 14:32:19,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:32:19,337 INFO L413 NwaCegarLoop]: 135 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, 135 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 [2023-12-16 14:32:19,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2023-12-16 14:32:19,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-12-16 14:32:19,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-12-16 14:32:19,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 53 states have internal predecessors, (74), 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) [2023-12-16 14:32:19,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 138 transitions. [2023-12-16 14:32:19,372 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 138 transitions. Word has length 202 [2023-12-16 14:32:19,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:32:19,372 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 138 transitions. [2023-12-16 14:32:19,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 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) [2023-12-16 14:32:19,373 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 138 transitions. [2023-12-16 14:32:19,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-16 14:32:19,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:32:19,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:32:19,392 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 [2023-12-16 14:32:19,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:19,586 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:32:19,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:32:19,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1585079114, now seen corresponding path program 1 times [2023-12-16 14:32:19,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:32:19,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041922495] [2023-12-16 14:32:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:19,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:19,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:32:19,589 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:32:19,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 14:32:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:19,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 14:32:19,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:32:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-12-16 14:32:21,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:32:21,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:32:21,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041922495] [2023-12-16 14:32:21,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041922495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:32:21,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:32:21,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 14:32:21,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724944955] [2023-12-16 14:32:21,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:32:21,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 14:32:21,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:32:21,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 14:32:21,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 14:32:21,821 INFO L87 Difference]: Start difference. First operand 87 states and 138 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-16 14:32:26,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:32:30,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:32:34,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:32:38,926 WARN L539 Checker$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 [] [2023-12-16 14:32:42,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:32:46,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:32:46,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:32:46,945 INFO L93 Difference]: Finished difference Result 289 states and 459 transitions. [2023-12-16 14:32:47,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 14:32:47,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 202 [2023-12-16 14:32:47,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:32:47,042 INFO L225 Difference]: With dead ends: 289 [2023-12-16 14:32:47,042 INFO L226 Difference]: Without dead ends: 203 [2023-12-16 14:32:47,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 14:32:47,044 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 115 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 67 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2023-12-16 14:32:47,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 432 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 19 Invalid, 6 Unknown, 0 Unchecked, 25.1s Time] [2023-12-16 14:32:47,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-16 14:32:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 172. [2023-12-16 14:32:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 105 states have (on average 1.361904761904762) internal successors, (143), 105 states have internal predecessors, (143), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-16 14:32:47,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 271 transitions. [2023-12-16 14:32:47,065 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 271 transitions. Word has length 202 [2023-12-16 14:32:47,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:32:47,066 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 271 transitions. [2023-12-16 14:32:47,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-16 14:32:47,066 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 271 transitions. [2023-12-16 14:32:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-16 14:32:47,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:32:47,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:32:47,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 14:32:47,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:47,282 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:32:47,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:32:47,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1048151664, now seen corresponding path program 1 times [2023-12-16 14:32:47,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:32:47,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217831880] [2023-12-16 14:32:47,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:47,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:47,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:32:47,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:32:47,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 14:32:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:47,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 14:32:47,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:32:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1120 proven. 102 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2023-12-16 14:32:50,406 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:32:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 78 proven. 105 refuted. 0 times theorem prover too weak. 1801 trivial. 0 not checked. [2023-12-16 14:32:52,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:32:52,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217831880] [2023-12-16 14:32:52,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217831880] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:32:52,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:32:52,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-16 14:32:52,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29560926] [2023-12-16 14:32:52,099 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:32:52,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 14:32:52,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:32:52,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 14:32:52,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-16 14:32:52,101 INFO L87 Difference]: Start difference. First operand 172 states and 271 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 3 states have call successors, (51), 3 states have call predecessors, (51), 7 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2023-12-16 14:32:58,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:33:02,898 WARN L539 Checker$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 [] [2023-12-16 14:33:06,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:33:10,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:33:14,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:33:18,924 WARN L539 Checker$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 [] Received shutdown request... [2023-12-16 14:33:20,308 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:33:20,309 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 [2023-12-16 14:33:21,335 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 [2023-12-16 14:33:21,509 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 14:33:21,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 14:33:21,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 392 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2023-12-16 14:33:21,527 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 310 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 67 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2023-12-16 14:33:21,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 395 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 357 Invalid, 6 Unknown, 0 Unchecked, 26.3s Time] [2023-12-16 14:33:21,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 14:33:21,529 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 14:33:21,533 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 14:33:21,535 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 14:33:21,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:33:21 BoogieIcfgContainer [2023-12-16 14:33:21,537 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 14:33:21,537 INFO L158 Benchmark]: Toolchain (without parser) took 80991.43ms. Allocated memory is still 283.1MB. Free memory was 223.7MB in the beginning and 177.0MB in the end (delta: 46.7MB). Peak memory consumption was 47.6MB. Max. memory is 8.0GB. [2023-12-16 14:33:21,537 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 119.9MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 14:33:21,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.93ms. Allocated memory is still 283.1MB. Free memory was 223.7MB in the beginning and 206.6MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 14:33:21,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.40ms. Allocated memory is still 283.1MB. Free memory was 206.6MB in the beginning and 203.8MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 14:33:21,538 INFO L158 Benchmark]: Boogie Preprocessor took 57.55ms. Allocated memory is still 283.1MB. Free memory was 203.8MB in the beginning and 199.3MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 14:33:21,538 INFO L158 Benchmark]: RCFGBuilder took 13295.46ms. Allocated memory is still 283.1MB. Free memory was 199.0MB in the beginning and 225.9MB in the end (delta: -26.9MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. [2023-12-16 14:33:21,538 INFO L158 Benchmark]: TraceAbstraction took 67285.52ms. Allocated memory is still 283.1MB. Free memory was 224.8MB in the beginning and 177.0MB in the end (delta: 47.8MB). Peak memory consumption was 47.8MB. Max. memory is 8.0GB. [2023-12-16 14:33:21,539 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 119.9MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 298.93ms. Allocated memory is still 283.1MB. Free memory was 223.7MB in the beginning and 206.6MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.40ms. Allocated memory is still 283.1MB. Free memory was 206.6MB in the beginning and 203.8MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.55ms. Allocated memory is still 283.1MB. Free memory was 203.8MB in the beginning and 199.3MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 13295.46ms. Allocated memory is still 283.1MB. Free memory was 199.0MB in the beginning and 225.9MB in the end (delta: -26.9MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. * TraceAbstraction took 67285.52ms. Allocated memory is still 283.1MB. Free memory was 224.8MB in the beginning and 177.0MB in the end (delta: 47.8MB). Peak memory consumption was 47.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.2s, OverallIterations: 3, TraceHistogramMax: 32, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 59.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 mSolverCounterUnknown, 438 SdHoareTripleChecker+Valid, 55.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 425 mSDsluCounter, 962 SdHoareTripleChecker+Invalid, 55.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 566 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 378 IncrementalHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 396 mSDtfsCounter, 378 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 815 GetRequests, 792 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 31 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 607 NumberOfCodeBlocks, 607 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 806 ConstructedInterpolants, 0 QuantifiedInterpolants, 2325 SizeOfPredicates, 6 NumberOfNonLiveVariables, 989 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 7729/7936 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown