/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-30.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:50:59,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:50:59,090 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 14:50:59,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:50:59,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:50:59,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:50:59,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:50:59,118 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:50:59,118 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:50:59,121 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:50:59,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:50:59,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:50:59,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:50:59,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:50:59,124 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:50:59,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:50:59,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:50:59,125 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:50:59,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:50:59,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:50:59,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:50:59,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:50:59,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:50:59,126 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:50:59,126 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:50:59,126 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:50:59,126 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:50:59,126 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:50:59,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:50:59,127 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:50:59,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:50:59,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:50:59,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:50:59,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:50:59,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:50:59,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:50:59,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:50:59,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:50:59,129 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:50:59,129 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:50:59,129 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:50:59,129 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:50:59,129 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:50:59,129 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:50:59,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:50:59,130 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:50:59,130 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:50:59,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:50:59,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:50:59,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:50:59,325 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:50:59,325 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:50:59,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-30.i [2023-12-16 14:51:00,412 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:51:00,593 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:51:00,593 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-30.i [2023-12-16 14:51:00,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0160d6a05/f883021af4a14f86b57ba4ce753d5f3b/FLAG1474c93ff [2023-12-16 14:51:00,611 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0160d6a05/f883021af4a14f86b57ba4ce753d5f3b [2023-12-16 14:51:00,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:51:00,614 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:51:00,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:51:00,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:51:00,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:51:00,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29df9c3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00, skipping insertion in model container [2023-12-16 14:51:00,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:51:00,742 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-30.i[915,928] [2023-12-16 14:51:00,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:51:00,772 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:51:00,781 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-30.i[915,928] [2023-12-16 14:51:00,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:51:00,835 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:51:00,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00 WrapperNode [2023-12-16 14:51:00,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:51:00,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:51:00,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:51:00,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:51:00,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,864 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2023-12-16 14:51:00,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:51:00,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:51:00,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:51:00,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:51:00,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,888 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 14:51:00,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,901 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:51:00,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:51:00,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:51:00,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:51:00,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (1/1) ... [2023-12-16 14:51:00,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:51:00,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:51:00,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 14:51:00,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 14:51:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:51:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:51:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:51:00,961 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:51:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:51:00,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:51:01,009 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:51:01,010 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:51:02,266 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:51:02,304 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:51:02,305 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:51:02,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:51:02 BoogieIcfgContainer [2023-12-16 14:51:02,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:51:02,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:51:02,307 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:51:02,309 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:51:02,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:51:00" (1/3) ... [2023-12-16 14:51:02,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228d5c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:51:02, skipping insertion in model container [2023-12-16 14:51:02,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:00" (2/3) ... [2023-12-16 14:51:02,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228d5c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:51:02, skipping insertion in model container [2023-12-16 14:51:02,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:51:02" (3/3) ... [2023-12-16 14:51:02,311 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-30.i [2023-12-16 14:51:02,331 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:51:02,331 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:51:02,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:51:02,372 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c4084d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:51:02,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:51:02,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-16 14:51:02,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 14:51:02,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:51:02,409 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:51:02,410 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:51:02,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:51:02,415 INFO L85 PathProgramCache]: Analyzing trace with hash 624855087, now seen corresponding path program 1 times [2023-12-16 14:51:02,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:51:02,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52062583] [2023-12-16 14:51:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:51:02,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:51:02,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:51:02,426 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:51:02,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 14:51:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:51:02,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:51:02,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:51:02,632 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-12-16 14:51:02,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:51:02,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:51:02,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52062583] [2023-12-16 14:51:02,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52062583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:51:02,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:51:02,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:51:02,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202807179] [2023-12-16 14:51:02,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:51:02,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:51:02,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:51:02,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:51:02,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:51:02,658 INFO L87 Difference]: Start difference. First operand has 36 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 14:51:02,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:51:02,758 INFO L93 Difference]: Finished difference Result 69 states and 119 transitions. [2023-12-16 14:51:02,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:51:02,772 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 70 [2023-12-16 14:51:02,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:51:02,777 INFO L225 Difference]: With dead ends: 69 [2023-12-16 14:51:02,777 INFO L226 Difference]: Without dead ends: 34 [2023-12-16 14:51:02,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:51:02,781 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 14:51:02,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 14:51:02,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-16 14:51:02,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-12-16 14:51:02,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-16 14:51:02,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2023-12-16 14:51:02,806 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 49 transitions. Word has length 70 [2023-12-16 14:51:02,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:51:02,806 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 49 transitions. [2023-12-16 14:51:02,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 14:51:02,806 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2023-12-16 14:51:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 14:51:02,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:51:02,808 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:51:02,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 14:51:03,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:51:03,017 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:51:03,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:51:03,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1704056433, now seen corresponding path program 1 times [2023-12-16 14:51:03,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:51:03,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017281240] [2023-12-16 14:51:03,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:51:03,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:51:03,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:51:03,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:51:03,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 14:51:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:51:03,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 14:51:03,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:51:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-16 14:51:03,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:51:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-16 14:51:04,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:51:04,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017281240] [2023-12-16 14:51:04,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017281240] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 14:51:04,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 14:51:04,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-16 14:51:04,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398219290] [2023-12-16 14:51:04,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:51:04,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 14:51:04,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:51:04,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 14:51:04,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 14:51:04,213 INFO L87 Difference]: Start difference. First operand 34 states and 49 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 14:51:05,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:51:05,396 INFO L93 Difference]: Finished difference Result 123 states and 165 transitions. [2023-12-16 14:51:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 14:51:05,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 70 [2023-12-16 14:51:05,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:51:05,402 INFO L225 Difference]: With dead ends: 123 [2023-12-16 14:51:05,402 INFO L226 Difference]: Without dead ends: 90 [2023-12-16 14:51:05,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-12-16 14:51:05,403 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 76 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 14:51:05,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 132 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 14:51:05,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-16 14:51:05,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 51. [2023-12-16 14:51:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 36 states have internal predecessors, (46), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 14:51:05,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2023-12-16 14:51:05,414 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 70 [2023-12-16 14:51:05,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:51:05,414 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2023-12-16 14:51:05,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 14:51:05,414 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2023-12-16 14:51:05,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 14:51:05,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:51:05,421 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:51:05,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 14:51:05,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:51:05,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:51:05,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:51:05,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1704116015, now seen corresponding path program 1 times [2023-12-16 14:51:05,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:51:05,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479171526] [2023-12-16 14:51:05,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:51:05,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:51:05,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:51:05,642 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:51:05,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 14:51:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:51:05,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 14:51:05,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:51:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-16 14:51:09,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:51:42,735 WARN L293 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 61 DAG size of output: 56 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-16 14:51:52,542 WARN L293 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-16 14:52:16,945 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:52:16,945 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:52:17,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 14:52:18,145 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 14:52:18,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 14:52:18,189 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 14:52:18,190 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 71 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. [2023-12-16 14:52:18,193 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 14:52:18,195 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 14:52:18,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:52:18 BoogieIcfgContainer [2023-12-16 14:52:18,199 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 14:52:18,200 INFO L158 Benchmark]: Toolchain (without parser) took 77585.79ms. Allocated memory was 189.8MB in the beginning and 685.8MB in the end (delta: 496.0MB). Free memory was 144.5MB in the beginning and 563.1MB in the end (delta: -418.6MB). Peak memory consumption was 77.7MB. Max. memory is 8.0GB. [2023-12-16 14:52:18,200 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 14:52:18,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.99ms. Allocated memory is still 189.8MB. Free memory was 144.5MB in the beginning and 131.6MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 14:52:18,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.11ms. Allocated memory is still 189.8MB. Free memory was 131.6MB in the beginning and 129.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 14:52:18,201 INFO L158 Benchmark]: Boogie Preprocessor took 42.27ms. Allocated memory is still 189.8MB. Free memory was 129.8MB in the beginning and 127.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 14:52:18,201 INFO L158 Benchmark]: RCFGBuilder took 1397.91ms. Allocated memory is still 189.8MB. Free memory was 127.4MB in the beginning and 111.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 14:52:18,202 INFO L158 Benchmark]: TraceAbstraction took 75892.64ms. Allocated memory was 189.8MB in the beginning and 685.8MB in the end (delta: 496.0MB). Free memory was 111.0MB in the beginning and 563.1MB in the end (delta: -452.2MB). Peak memory consumption was 44.2MB. Max. memory is 8.0GB. [2023-12-16 14:52:18,203 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 219.99ms. Allocated memory is still 189.8MB. Free memory was 144.5MB in the beginning and 131.6MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.11ms. Allocated memory is still 189.8MB. Free memory was 131.6MB in the beginning and 129.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.27ms. Allocated memory is still 189.8MB. Free memory was 129.8MB in the beginning and 127.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1397.91ms. Allocated memory is still 189.8MB. Free memory was 127.4MB in the beginning and 111.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 75892.64ms. Allocated memory was 189.8MB in the beginning and 685.8MB in the end (delta: 496.0MB). Free memory was 111.0MB in the beginning and 563.1MB in the end (delta: -452.2MB). Peak memory consumption was 44.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 71 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.8s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 178 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 90 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 213 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 39 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 207 ConstructedInterpolants, 2 QuantifiedInterpolants, 454 SizeOfPredicates, 7 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 642/660 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown