/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-55.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 19:35:29,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 19:35:29,580 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 19:35:29,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 19:35:29,590 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 19:35:29,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 19:35:29,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 19:35:29,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 19:35:29,619 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 19:35:29,620 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 19:35:29,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 19:35:29,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 19:35:29,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 19:35:29,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 19:35:29,622 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 19:35:29,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 19:35:29,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 19:35:29,623 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 19:35:29,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 19:35:29,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 19:35:29,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 19:35:29,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 19:35:29,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 19:35:29,626 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 19:35:29,626 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 19:35:29,626 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 19:35:29,627 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 19:35:29,627 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 19:35:29,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 19:35:29,628 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 19:35:29,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 19:35:29,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 19:35:29,628 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 19:35:29,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 19:35:29,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:35:29,631 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 19:35:29,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 19:35:29,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 19:35:29,631 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 19:35:29,631 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 19:35:29,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 19:35:29,632 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 19:35:29,632 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 19:35:29,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 19:35:29,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:35:29,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 19:35:29,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 19:35:29,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 19:35:29,902 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 19:35:29,902 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 19:35:29,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-55.i [2024-11-05 19:35:31,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 19:35:31,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 19:35:31,579 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-55.i [2024-11-05 19:35:31,588 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b31491cd/eab9cae9ee9d406082eb76e303171696/FLAGe2759df6f [2024-11-05 19:35:31,601 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b31491cd/eab9cae9ee9d406082eb76e303171696 [2024-11-05 19:35:31,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 19:35:31,607 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 19:35:31,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 19:35:31,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 19:35:31,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 19:35:31,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:31,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cecd7fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31, skipping insertion in model container [2024-11-05 19:35:31,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:31,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 19:35:31,824 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-55.i[915,928] [2024-11-05 19:35:31,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:35:31,872 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 19:35:31,885 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-55.i[915,928] [2024-11-05 19:35:31,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:35:31,940 INFO L204 MainTranslator]: Completed translation [2024-11-05 19:35:31,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31 WrapperNode [2024-11-05 19:35:31,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 19:35:31,942 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 19:35:31,942 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 19:35:31,942 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 19:35:31,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:31,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:31,979 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-11-05 19:35:31,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 19:35:31,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 19:35:31,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 19:35:31,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 19:35:31,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:31,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:31,994 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:32,004 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]. [2024-11-05 19:35:32,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:32,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:32,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:32,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:32,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:32,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:32,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 19:35:32,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 19:35:32,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 19:35:32,024 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 19:35:32,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (1/1) ... [2024-11-05 19:35:32,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:35:32,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 19:35:32,058 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) [2024-11-05 19:35:32,068 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 [2024-11-05 19:35:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 19:35:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 19:35:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 19:35:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 19:35:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 19:35:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 19:35:32,168 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 19:35:32,170 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 19:35:32,377 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-05 19:35:32,378 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 19:35:32,390 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 19:35:32,390 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 19:35:32,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:35:32 BoogieIcfgContainer [2024-11-05 19:35:32,391 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 19:35:32,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 19:35:32,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 19:35:32,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 19:35:32,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:35:31" (1/3) ... [2024-11-05 19:35:32,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6fc920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:35:32, skipping insertion in model container [2024-11-05 19:35:32,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:31" (2/3) ... [2024-11-05 19:35:32,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6fc920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:35:32, skipping insertion in model container [2024-11-05 19:35:32,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:35:32" (3/3) ... [2024-11-05 19:35:32,401 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-55.i [2024-11-05 19:35:32,419 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 19:35:32,420 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 19:35:32,479 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 19:35:32,485 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;@1564723e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 19:35:32,486 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 19:35:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 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) [2024-11-05 19:35:32,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-05 19:35:32,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:35:32,507 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] [2024-11-05 19:35:32,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:35:32,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:35:32,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1190529033, now seen corresponding path program 1 times [2024-11-05 19:35:32,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:35:32,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849227626] [2024-11-05 19:35:32,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:35:32,540 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 [2024-11-05 19:35:32,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:35:32,542 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) [2024-11-05 19:35:32,543 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 [2024-11-05 19:35:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:35:32,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-05 19:35:32,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:35:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-05 19:35:37,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:35:38,920 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-05 19:35:38,921 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:35:38,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849227626] [2024-11-05 19:35:38,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1849227626] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 19:35:38,922 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 19:35:38,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2024-11-05 19:35:38,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379206558] [2024-11-05 19:35:38,924 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 19:35:38,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-05 19:35:38,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:35:38,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-05 19:35:38,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-05 19:35:38,958 INFO L87 Difference]: Start difference. First operand has 43 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 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 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-05 19:35:39,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:35:39,240 INFO L93 Difference]: Finished difference Result 87 states and 145 transitions. [2024-11-05 19:35:39,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-05 19:35:39,243 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-11-05 19:35:39,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:35:39,253 INFO L225 Difference]: With dead ends: 87 [2024-11-05 19:35:39,253 INFO L226 Difference]: Without dead ends: 47 [2024-11-05 19:35:39,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-05 19:35:39,260 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 12 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-05 19:35:39,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 313 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-05 19:35:39,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-05 19:35:39,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2024-11-05 19:35:39,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 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) [2024-11-05 19:35:39,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2024-11-05 19:35:39,303 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 87 [2024-11-05 19:35:39,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:35:39,305 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-11-05 19:35:39,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-05 19:35:39,306 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-11-05 19:35:39,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-05 19:35:39,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:35:39,310 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] [2024-11-05 19:35:39,316 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 [2024-11-05 19:35:39,511 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 [2024-11-05 19:35:39,511 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:35:39,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:35:39,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1803654436, now seen corresponding path program 1 times [2024-11-05 19:35:39,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:35:39,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779322458] [2024-11-05 19:35:39,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:35:39,513 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 [2024-11-05 19:35:39,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:35:39,515 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) [2024-11-05 19:35:39,517 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 [2024-11-05 19:35:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:35:39,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-05 19:35:39,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:35:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 119 proven. 63 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-05 19:35:40,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:35:43,111 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 66 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-11-05 19:35:43,111 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:35:43,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779322458] [2024-11-05 19:35:43,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1779322458] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:35:43,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:35:43,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2024-11-05 19:35:43,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824754417] [2024-11-05 19:35:43,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:35:43,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-05 19:35:43,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:35:43,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-05 19:35:43,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2024-11-05 19:35:43,117 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 4 states have call successors, (26), 3 states have call predecessors, (26), 7 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-05 19:35:43,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:35:43,793 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2024-11-05 19:35:43,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-05 19:35:43,795 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 4 states have call successors, (26), 3 states have call predecessors, (26), 7 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 88 [2024-11-05 19:35:43,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:35:43,797 INFO L225 Difference]: With dead ends: 67 [2024-11-05 19:35:43,797 INFO L226 Difference]: Without dead ends: 65 [2024-11-05 19:35:43,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=768, Unknown=0, NotChecked=0, Total=992 [2024-11-05 19:35:43,799 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 60 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-05 19:35:43,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 259 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-05 19:35:43,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-05 19:35:43,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 50. [2024-11-05 19:35:43,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-05 19:35:43,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 64 transitions. [2024-11-05 19:35:43,810 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 64 transitions. Word has length 88 [2024-11-05 19:35:43,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:35:43,811 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 64 transitions. [2024-11-05 19:35:43,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 4 states have call successors, (26), 3 states have call predecessors, (26), 7 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-05 19:35:43,811 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2024-11-05 19:35:43,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-05 19:35:43,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:35:43,813 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, 1] [2024-11-05 19:35:43,818 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 [2024-11-05 19:35:44,013 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 [2024-11-05 19:35:44,014 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:35:44,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:35:44,015 INFO L85 PathProgramCache]: Analyzing trace with hash -156847652, now seen corresponding path program 1 times [2024-11-05 19:35:44,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:35:44,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521017411] [2024-11-05 19:35:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:35:44,015 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 [2024-11-05 19:35:44,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:35:44,017 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) [2024-11-05 19:35:44,018 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 [2024-11-05 19:35:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:35:44,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-05 19:35:44,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:35:44,094 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-05 19:35:44,095 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:35:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-05 19:35:44,165 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:35:44,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521017411] [2024-11-05 19:35:44,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1521017411] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 19:35:44,165 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 19:35:44,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2024-11-05 19:35:44,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433566790] [2024-11-05 19:35:44,166 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 19:35:44,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-05 19:35:44,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:35:44,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-05 19:35:44,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-05 19:35:44,168 INFO L87 Difference]: Start difference. First operand 50 states and 64 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-05 19:35:44,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:35:44,197 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2024-11-05 19:35:44,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 19:35:44,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 89 [2024-11-05 19:35:44,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:35:44,198 INFO L225 Difference]: With dead ends: 93 [2024-11-05 19:35:44,198 INFO L226 Difference]: Without dead ends: 0 [2024-11-05 19:35:44,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-05 19:35:44,200 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 2 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 19:35:44,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 137 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 19:35:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-05 19:35:44,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-05 19:35:44,202 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) [2024-11-05 19:35:44,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-05 19:35:44,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2024-11-05 19:35:44,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:35:44,202 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-05 19:35:44,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-05 19:35:44,202 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-05 19:35:44,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-05 19:35:44,205 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-05 19:35:44,209 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 [2024-11-05 19:35:44,405 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 [2024-11-05 19:35:44,408 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-05 19:35:44,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-05 19:35:44,540 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-05 19:35:44,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 07:35:44 BoogieIcfgContainer [2024-11-05 19:35:44,563 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-05 19:35:44,568 INFO L158 Benchmark]: Toolchain (without parser) took 12958.70ms. Allocated memory was 307.2MB in the beginning and 735.1MB in the end (delta: 427.8MB). Free memory was 254.7MB in the beginning and 365.4MB in the end (delta: -110.7MB). Peak memory consumption was 318.4MB. Max. memory is 8.0GB. [2024-11-05 19:35:44,568 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 199.2MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 19:35:44,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.84ms. Allocated memory is still 307.2MB. Free memory was 254.4MB in the beginning and 240.7MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-05 19:35:44,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.06ms. Allocated memory is still 307.2MB. Free memory was 240.4MB in the beginning and 238.6MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-05 19:35:44,569 INFO L158 Benchmark]: Boogie Preprocessor took 41.80ms. Allocated memory is still 307.2MB. Free memory was 238.6MB in the beginning and 236.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 19:35:44,569 INFO L158 Benchmark]: RCFGBuilder took 367.48ms. Allocated memory is still 307.2MB. Free memory was 236.6MB in the beginning and 222.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-05 19:35:44,569 INFO L158 Benchmark]: TraceAbstraction took 12170.30ms. Allocated memory was 307.2MB in the beginning and 735.1MB in the end (delta: 427.8MB). Free memory was 222.2MB in the beginning and 365.4MB in the end (delta: -143.2MB). Peak memory consumption was 285.9MB. Max. memory is 8.0GB. [2024-11-05 19:35:44,571 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 199.2MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 331.84ms. Allocated memory is still 307.2MB. Free memory was 254.4MB in the beginning and 240.7MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.06ms. Allocated memory is still 307.2MB. Free memory was 240.4MB in the beginning and 238.6MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.80ms. Allocated memory is still 307.2MB. Free memory was 238.6MB in the beginning and 236.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 367.48ms. Allocated memory is still 307.2MB. Free memory was 236.6MB in the beginning and 222.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 12170.30ms. Allocated memory was 307.2MB in the beginning and 735.1MB in the end (delta: 427.8MB). Free memory was 222.2MB in the beginning and 365.4MB in the end (delta: -143.2MB). Peak memory consumption was 285.9MB. 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, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.9s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 709 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 572 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 566 IncrementalHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 137 mSDtfsCounter, 566 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 533 GetRequests, 488 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=2, InterpolantAutomatonStates: 31, 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, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 522 ConstructedInterpolants, 25 QuantifiedInterpolants, 2457 SizeOfPredicates, 34 NumberOfNonLiveVariables, 432 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 2055/2184 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: 84]: Loop Invariant Derived loop invariant: ((var_1_3 <= 0) && (var_1_2 <= 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_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9)))) RESULT: Ultimate proved your program to be correct! [2024-11-05 19:35:44,607 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 0 Received shutdown request...