/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-40.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 08:06:42,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 08:06:42,723 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 08:06:42,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 08:06:42,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 08:06:42,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 08:06:42,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 08:06:42,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 08:06:42,762 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 08:06:42,763 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 08:06:42,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 08:06:42,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 08:06:42,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 08:06:42,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 08:06:42,765 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 08:06:42,765 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 08:06:42,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 08:06:42,766 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 08:06:42,766 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 08:06:42,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 08:06:42,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 08:06:42,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 08:06:42,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 08:06:42,768 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 08:06:42,768 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 08:06:42,769 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 08:06:42,769 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 08:06:42,769 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 08:06:42,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 08:06:42,770 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 08:06:42,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 08:06:42,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 08:06:42,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 08:06:42,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 08:06:42,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 08:06:42,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 08:06:42,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 08:06:42,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 08:06:42,773 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 08:06:42,773 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 08:06:42,773 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 08:06:42,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 08:06:42,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 08:06:42,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 08:06:42,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:06:42,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 08:06:43,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 08:06:43,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 08:06:43,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 08:06:43,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 08:06:43,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-40.i [2024-11-03 08:06:44,465 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 08:06:44,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 08:06:44,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-40.i [2024-11-03 08:06:44,679 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b445e32c4/d0d3b5b314424048b4119a4fc3b96eae/FLAG793f9d7e8 [2024-11-03 08:06:44,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b445e32c4/d0d3b5b314424048b4119a4fc3b96eae [2024-11-03 08:06:44,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 08:06:44,701 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 08:06:44,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 08:06:44,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 08:06:44,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 08:06:44,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:44,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f925f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44, skipping insertion in model container [2024-11-03 08:06:44,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:44,738 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 08:06:44,905 WARN L250 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_amount10_file-40.i[915,928] [2024-11-03 08:06:44,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 08:06:44,955 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 08:06:44,967 WARN L250 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_amount10_file-40.i[915,928] [2024-11-03 08:06:44,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 08:06:44,997 INFO L204 MainTranslator]: Completed translation [2024-11-03 08:06:44,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44 WrapperNode [2024-11-03 08:06:44,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 08:06:44,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 08:06:44,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 08:06:45,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 08:06:45,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,040 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-03 08:06:45,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 08:06:45,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 08:06:45,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 08:06:45,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 08:06:45,050 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,065 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]. [2024-11-03 08:06:45,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,072 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 08:06:45,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 08:06:45,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 08:06:45,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 08:06:45,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (1/1) ... [2024-11-03 08:06:45,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 08:06:45,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 08:06:45,114 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) [2024-11-03 08:06:45,117 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 [2024-11-03 08:06:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 08:06:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 08:06:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 08:06:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 08:06:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 08:06:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 08:06:45,228 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 08:06:45,231 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 08:06:46,418 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-03 08:06:46,419 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 08:06:46,434 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 08:06:46,434 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 08:06:46,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:06:46 BoogieIcfgContainer [2024-11-03 08:06:46,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 08:06:46,437 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 08:06:46,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 08:06:46,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 08:06:46,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:06:44" (1/3) ... [2024-11-03 08:06:46,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218bdc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:06:46, skipping insertion in model container [2024-11-03 08:06:46,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:06:44" (2/3) ... [2024-11-03 08:06:46,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218bdc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:06:46, skipping insertion in model container [2024-11-03 08:06:46,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:06:46" (3/3) ... [2024-11-03 08:06:46,442 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-40.i [2024-11-03 08:06:46,454 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 08:06:46,454 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 08:06:46,508 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 08:06:46,514 INFO L333 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, 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;@5f7ffa19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 08:06:46,515 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 08:06:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-03 08:06:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-03 08:06:46,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:06:46,526 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 08:06:46,526 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:06:46,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:06:46,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1830882775, now seen corresponding path program 1 times [2024-11-03 08:06:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:06:46,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681858543] [2024-11-03 08:06:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:06:46,540 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 [2024-11-03 08:06:46,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:06:46,542 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) [2024-11-03 08:06:46,544 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 [2024-11-03 08:06:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:06:46,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 08:06:46,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:06:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-03 08:06:46,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:06:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-03 08:06:47,092 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:06:47,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681858543] [2024-11-03 08:06:47,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [681858543] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 08:06:47,093 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 08:06:47,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 08:06:47,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80625588] [2024-11-03 08:06:47,097 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 08:06:47,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 08:06:47,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:06:47,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 08:06:47,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 08:06:47,129 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-03 08:06:47,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:06:47,151 INFO L93 Difference]: Finished difference Result 77 states and 126 transitions. [2024-11-03 08:06:47,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 08:06:47,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2024-11-03 08:06:47,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:06:47,158 INFO L225 Difference]: With dead ends: 77 [2024-11-03 08:06:47,158 INFO L226 Difference]: Without dead ends: 38 [2024-11-03 08:06:47,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 08:06:47,164 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 08:06:47,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 08:06:47,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-03 08:06:47,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-03 08:06:47,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-03 08:06:47,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2024-11-03 08:06:47,202 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 88 [2024-11-03 08:06:47,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:06:47,203 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2024-11-03 08:06:47,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-03 08:06:47,204 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-11-03 08:06:47,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-03 08:06:47,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:06:47,210 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 08:06:47,225 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 [2024-11-03 08:06:47,411 WARN L453 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 [2024-11-03 08:06:47,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:06:47,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:06:47,413 INFO L85 PathProgramCache]: Analyzing trace with hash 138008983, now seen corresponding path program 1 times [2024-11-03 08:06:47,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:06:47,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233285842] [2024-11-03 08:06:47,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:06:47,414 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 [2024-11-03 08:06:47,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:06:47,415 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) [2024-11-03 08:06:47,416 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 [2024-11-03 08:06:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:06:47,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 08:06:47,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:06:48,045 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-03 08:06:48,046 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:06:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-03 08:06:48,406 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:06:48,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233285842] [2024-11-03 08:06:48,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [233285842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 08:06:48,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 08:06:48,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-03 08:06:48,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411952436] [2024-11-03 08:06:48,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 08:06:48,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 08:06:48,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:06:48,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 08:06:48,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 08:06:48,412 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-03 08:06:49,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:06:49,219 INFO L93 Difference]: Finished difference Result 81 states and 108 transitions. [2024-11-03 08:06:49,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 08:06:49,236 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 88 [2024-11-03 08:06:49,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:06:49,238 INFO L225 Difference]: With dead ends: 81 [2024-11-03 08:06:49,238 INFO L226 Difference]: Without dead ends: 46 [2024-11-03 08:06:49,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-03 08:06:49,240 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 47 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-03 08:06:49,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 102 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-03 08:06:49,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-03 08:06:49,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2024-11-03 08:06:49,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-03 08:06:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2024-11-03 08:06:49,252 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 88 [2024-11-03 08:06:49,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:06:49,253 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2024-11-03 08:06:49,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-03 08:06:49,253 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2024-11-03 08:06:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-03 08:06:49,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:06:49,255 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 08:06:49,269 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 [2024-11-03 08:06:49,456 WARN L453 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 [2024-11-03 08:06:49,456 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:06:49,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:06:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash 139856025, now seen corresponding path program 1 times [2024-11-03 08:06:49,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:06:49,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72170079] [2024-11-03 08:06:49,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:06:49,458 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 [2024-11-03 08:06:49,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:06:49,461 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) [2024-11-03 08:06:49,462 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 [2024-11-03 08:06:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:06:49,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 08:06:49,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:06:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-03 08:06:51,899 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:06:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-03 08:06:53,241 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:06:53,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72170079] [2024-11-03 08:06:53,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [72170079] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 08:06:53,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 08:06:53,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2024-11-03 08:06:53,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960344123] [2024-11-03 08:06:53,242 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 08:06:53,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 08:06:53,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:06:53,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 08:06:53,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-03 08:06:53,244 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-03 08:06:54,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:06:54,895 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2024-11-03 08:06:54,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 08:06:54,896 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 88 [2024-11-03 08:06:54,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:06:54,897 INFO L225 Difference]: With dead ends: 59 [2024-11-03 08:06:54,897 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 08:06:54,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-03 08:06:54,899 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 31 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-03 08:06:54,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 250 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-03 08:06:54,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 08:06:54,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 08:06:54,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 08:06:54,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 08:06:54,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2024-11-03 08:06:54,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:06:54,901 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 08:06:54,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-03 08:06:54,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 08:06:54,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 08:06:54,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 08:06:54,914 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 [2024-11-03 08:06:55,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:06:55,108 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 08:06:55,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 08:06:55,240 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 08:06:55,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 08:06:55 BoogieIcfgContainer [2024-11-03 08:06:55,262 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 08:06:55,263 INFO L158 Benchmark]: Toolchain (without parser) took 10562.28ms. Allocated memory is still 291.5MB. Free memory was 241.9MB in the beginning and 99.0MB in the end (delta: 142.9MB). Peak memory consumption was 145.6MB. Max. memory is 8.0GB. [2024-11-03 08:06:55,265 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory was 139.6MB in the beginning and 139.5MB in the end (delta: 65.2kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 08:06:55,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.06ms. Allocated memory is still 291.5MB. Free memory was 241.4MB in the beginning and 227.7MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 08:06:55,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.82ms. Allocated memory is still 291.5MB. Free memory was 227.7MB in the beginning and 225.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 08:06:55,265 INFO L158 Benchmark]: Boogie Preprocessor took 39.86ms. Allocated memory is still 291.5MB. Free memory was 225.6MB in the beginning and 223.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 08:06:55,266 INFO L158 Benchmark]: RCFGBuilder took 1353.14ms. Allocated memory is still 291.5MB. Free memory was 223.0MB in the beginning and 208.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 08:06:55,266 INFO L158 Benchmark]: TraceAbstraction took 8825.16ms. Allocated memory is still 291.5MB. Free memory was 208.3MB in the beginning and 99.0MB in the end (delta: 109.4MB). Peak memory consumption was 112.0MB. Max. memory is 8.0GB. [2024-11-03 08:06:55,267 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory was 139.6MB in the beginning and 139.5MB in the end (delta: 65.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 294.06ms. Allocated memory is still 291.5MB. Free memory was 241.4MB in the beginning and 227.7MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.82ms. Allocated memory is still 291.5MB. Free memory was 227.7MB in the beginning and 225.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.86ms. Allocated memory is still 291.5MB. Free memory was 225.6MB in the beginning and 223.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1353.14ms. Allocated memory is still 291.5MB. Free memory was 223.0MB in the beginning and 208.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 8825.16ms. Allocated memory is still 291.5MB. Free memory was 208.3MB in the beginning and 99.0MB in the end (delta: 109.4MB). Peak memory consumption was 112.0MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 404 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 278 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 375 IncrementalHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 126 mSDtfsCounter, 375 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 535 GetRequests, 504 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 522 ConstructedInterpolants, 0 QuantifiedInterpolants, 1128 SizeOfPredicates, 20 NumberOfNonLiveVariables, 442 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 2088/2184 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (var_1_8 <= 0) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((0 != cond) && (((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14)))) RESULT: Ultimate proved your program to be correct! [2024-11-03 08:06:55,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...