/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_fillercode_fillercodestructure_filler-pr-co_file-74.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:32:34,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:32:34,237 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 12:32:34,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:32:34,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:32:34,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:32:34,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:32:34,263 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:32:34,264 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:32:34,267 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:32:34,267 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:32:34,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:32:34,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:32:34,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:32:34,269 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:32:34,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:32:34,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:32:34,270 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:32:34,270 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:32:34,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:32:34,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:32:34,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:32:34,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:32:34,271 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:32:34,271 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:32:34,271 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:32:34,271 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:32:34,271 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:32:34,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:32:34,272 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:32:34,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:32:34,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:32:34,273 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:32:34,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:32:34,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:32:34,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:32:34,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:32:34,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:32:34,273 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:32:34,274 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:32:34,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:32:34,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:32:34,274 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:32:34,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:32:34,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:32:34,275 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:32:34,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:32:34,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:32:34,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:32:34,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:32:34,502 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:32:34,502 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:32:34,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-74.i [2023-12-16 12:32:35,544 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:32:35,712 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:32:35,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-74.i [2023-12-16 12:32:35,718 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a93f6d88/31d3faf60f6f40a59ad57e9ce3962ba2/FLAG59ad88168 [2023-12-16 12:32:35,729 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a93f6d88/31d3faf60f6f40a59ad57e9ce3962ba2 [2023-12-16 12:32:35,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:32:35,732 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:32:35,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:32:35,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:32:35,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:32:35,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:32:35" (1/1) ... [2023-12-16 12:32:35,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52161d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:35, skipping insertion in model container [2023-12-16 12:32:35,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:32:35" (1/1) ... [2023-12-16 12:32:35,779 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:32:35,898 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_fillercode_fillercodestructure_filler-pr-co_file-74.i[919,932] [2023-12-16 12:32:35,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:32:35,990 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:32:36,001 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_fillercode_fillercodestructure_filler-pr-co_file-74.i[919,932] [2023-12-16 12:32:36,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:32:36,046 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:32:36,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36 WrapperNode [2023-12-16 12:32:36,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:32:36,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:32:36,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:32:36,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:32:36,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,095 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 189 [2023-12-16 12:32:36,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:32:36,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:32:36,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:32:36,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:32:36,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,106 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,124 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 12:32:36,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:32:36,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:32:36,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:32:36,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:32:36,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (1/1) ... [2023-12-16 12:32:36,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:32:36,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:32:36,177 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 12:32:36,182 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 12:32:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:32:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:32:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:32:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:32:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:32:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:32:36,257 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:32:36,258 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:32:37,819 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:32:37,877 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:32:37,877 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:32:37,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:32:37 BoogieIcfgContainer [2023-12-16 12:32:37,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:32:37,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:32:37,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:32:37,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:32:37,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:32:35" (1/3) ... [2023-12-16 12:32:37,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b89cc96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:32:37, skipping insertion in model container [2023-12-16 12:32:37,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:32:36" (2/3) ... [2023-12-16 12:32:37,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b89cc96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:32:37, skipping insertion in model container [2023-12-16 12:32:37,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:32:37" (3/3) ... [2023-12-16 12:32:37,885 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-74.i [2023-12-16 12:32:37,898 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:32:37,898 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:32:37,936 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:32:37,940 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;@7e059c36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:32:37,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:32:37,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 52 states have internal predecessors, (78), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 12:32:37,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 12:32:37,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:32:37,954 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:37,954 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:32:37,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:32:37,958 INFO L85 PathProgramCache]: Analyzing trace with hash 390343211, now seen corresponding path program 1 times [2023-12-16 12:32:37,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:32:37,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263274349] [2023-12-16 12:32:37,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:37,969 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 12:32:37,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:32:37,975 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 12:32:37,977 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 12:32:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:38,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:32:38,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2023-12-16 12:32:38,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:32:38,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:32:38,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263274349] [2023-12-16 12:32:38,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263274349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:32:38,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:32:38,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:32:38,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951882524] [2023-12-16 12:32:38,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:32:38,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:32:38,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:32:38,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:32:38,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:32:38,440 INFO L87 Difference]: Start difference. First operand has 79 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 52 states have internal predecessors, (78), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 12:32:40,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:40,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:32:40,269 INFO L93 Difference]: Finished difference Result 154 states and 277 transitions. [2023-12-16 12:32:40,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:32:40,297 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 161 [2023-12-16 12:32:40,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:32:40,303 INFO L225 Difference]: With dead ends: 154 [2023-12-16 12:32:40,303 INFO L226 Difference]: Without dead ends: 76 [2023-12-16 12:32:40,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 160 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 12:32:40,309 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 12:32:40,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 12:32:40,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-16 12:32:40,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-16 12:32:40,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 49 states have internal predecessors, (68), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 12:32:40,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 118 transitions. [2023-12-16 12:32:40,346 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 118 transitions. Word has length 161 [2023-12-16 12:32:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:32:40,346 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 118 transitions. [2023-12-16 12:32:40,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 12:32:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 118 transitions. [2023-12-16 12:32:40,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 12:32:40,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:32:40,349 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:40,361 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 12:32:40,550 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 12:32:40,550 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:32:40,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:32:40,551 INFO L85 PathProgramCache]: Analyzing trace with hash -436784847, now seen corresponding path program 1 times [2023-12-16 12:32:40,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:32:40,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215290682] [2023-12-16 12:32:40,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:40,552 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 12:32:40,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:32:40,559 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 12:32:40,560 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 12:32:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:40,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 12:32:40,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 12:32:41,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:32:41,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:32:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215290682] [2023-12-16 12:32:41,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215290682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:32:41,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:32:41,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 12:32:41,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564421658] [2023-12-16 12:32:41,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:32:41,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 12:32:41,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:32:41,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 12:32:41,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 12:32:41,994 INFO L87 Difference]: Start difference. First operand 76 states and 118 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:32:44,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:46,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:46,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:32:46,522 INFO L93 Difference]: Finished difference Result 227 states and 353 transitions. [2023-12-16 12:32:46,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 12:32:46,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 161 [2023-12-16 12:32:46,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:32:46,552 INFO L225 Difference]: With dead ends: 227 [2023-12-16 12:32:46,552 INFO L226 Difference]: Without dead ends: 152 [2023-12-16 12:32:46,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 12:32:46,554 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 126 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-16 12:32:46,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 366 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-16 12:32:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-16 12:32:46,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 123. [2023-12-16 12:32:46,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 70 states have internal predecessors, (89), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-16 12:32:46,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 189 transitions. [2023-12-16 12:32:46,574 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 189 transitions. Word has length 161 [2023-12-16 12:32:46,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:32:46,574 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 189 transitions. [2023-12-16 12:32:46,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:32:46,575 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 189 transitions. [2023-12-16 12:32:46,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-16 12:32:46,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:32:46,577 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:46,607 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 (3)] Ended with exit code 0 [2023-12-16 12:32:46,807 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 12:32:46,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:32:46,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:32:46,808 INFO L85 PathProgramCache]: Analyzing trace with hash -448588890, now seen corresponding path program 1 times [2023-12-16 12:32:46,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:32:46,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736053801] [2023-12-16 12:32:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:46,809 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 12:32:46,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:32:46,812 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 12:32:46,813 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 12:32:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:47,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:32:47,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:47,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 12:32:47,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:32:47,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:32:47,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736053801] [2023-12-16 12:32:47,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736053801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:32:47,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:32:47,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:32:47,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078246926] [2023-12-16 12:32:47,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:32:47,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:32:47,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:32:47,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:32:47,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:32:47,614 INFO L87 Difference]: Start difference. First operand 123 states and 189 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:32:49,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:49,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:32:49,617 INFO L93 Difference]: Finished difference Result 214 states and 335 transitions. [2023-12-16 12:32:49,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:32:49,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 162 [2023-12-16 12:32:49,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:32:49,619 INFO L225 Difference]: With dead ends: 214 [2023-12-16 12:32:49,619 INFO L226 Difference]: Without dead ends: 139 [2023-12-16 12:32:49,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:32:49,620 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 22 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 12:32:49,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 210 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 12:32:49,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-12-16 12:32:49,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 135. [2023-12-16 12:32:49,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-16 12:32:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 211 transitions. [2023-12-16 12:32:49,651 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 211 transitions. Word has length 162 [2023-12-16 12:32:49,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:32:49,652 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 211 transitions. [2023-12-16 12:32:49,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 12:32:49,652 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 211 transitions. [2023-12-16 12:32:49,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-16 12:32:49,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:32:49,654 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:49,683 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 12:32:49,866 WARN L477 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 [2023-12-16 12:32:49,866 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:32:49,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:32:49,867 INFO L85 PathProgramCache]: Analyzing trace with hash 138217124, now seen corresponding path program 1 times [2023-12-16 12:32:49,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:32:49,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53422501] [2023-12-16 12:32:49,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:49,868 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 12:32:49,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:32:49,869 INFO L229 MonitoredProcess]: Starting monitored process 5 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 12:32:49,873 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 (5)] Waiting until timeout for monitored process [2023-12-16 12:32:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:50,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 12:32:50,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:32:50,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 620 proven. 78 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2023-12-16 12:32:50,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:32:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 30 proven. 42 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-16 12:32:51,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:32:51,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53422501] [2023-12-16 12:32:51,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53422501] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:32:51,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:32:51,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2023-12-16 12:32:51,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996290976] [2023-12-16 12:32:51,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:32:51,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 12:32:51,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:32:51,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 12:32:51,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-16 12:32:51,458 INFO L87 Difference]: Start difference. First operand 135 states and 211 transitions. Second operand has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 16 states have internal predecessors, (78), 4 states have call successors, (39), 3 states have call predecessors, (39), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2023-12-16 12:32:54,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:32:56,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:32:56,092 INFO L93 Difference]: Finished difference Result 276 states and 408 transitions. [2023-12-16 12:32:56,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 12:32:56,095 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 16 states have internal predecessors, (78), 4 states have call successors, (39), 3 states have call predecessors, (39), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 162 [2023-12-16 12:32:56,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:32:56,097 INFO L225 Difference]: With dead ends: 276 [2023-12-16 12:32:56,097 INFO L226 Difference]: Without dead ends: 201 [2023-12-16 12:32:56,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2023-12-16 12:32:56,098 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 166 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-16 12:32:56,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 449 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-16 12:32:56,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-12-16 12:32:56,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 186. [2023-12-16 12:32:56,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 118 states have (on average 1.2966101694915255) internal successors, (153), 119 states have internal predecessors, (153), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-16 12:32:56,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 273 transitions. [2023-12-16 12:32:56,133 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 273 transitions. Word has length 162 [2023-12-16 12:32:56,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:32:56,134 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 273 transitions. [2023-12-16 12:32:56,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 16 states have internal predecessors, (78), 4 states have call successors, (39), 3 states have call predecessors, (39), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2023-12-16 12:32:56,134 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 273 transitions. [2023-12-16 12:32:56,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-16 12:32:56,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:32:56,136 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:56,149 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 (5)] Forceful destruction successful, exit code 0 [2023-12-16 12:32:56,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 12:32:56,350 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:32:56,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:32:56,351 INFO L85 PathProgramCache]: Analyzing trace with hash 140064166, now seen corresponding path program 1 times [2023-12-16 12:32:56,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:32:56,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990764190] [2023-12-16 12:32:56,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:32:56,351 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 12:32:56,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:32:56,352 INFO L229 MonitoredProcess]: Starting monitored process 6 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 12:32:56,353 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 (6)] Waiting until timeout for monitored process [2023-12-16 12:32:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:32:56,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-16 12:32:56,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:33:40,526 WARN L293 SmtUtils]: Spent 14.19s 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 12:33:52,295 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 12:33:52,312 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:33:53,326 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 12:33:53,398 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:33:53,399 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 163 with TraceHistMax 25,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 12:33:53,402 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 12:33:53,404 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:33:53,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:33:53 BoogieIcfgContainer [2023-12-16 12:33:53,425 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:33:53,425 INFO L158 Benchmark]: Toolchain (without parser) took 77693.37ms. Allocated memory was 243.3MB in the beginning and 292.6MB in the end (delta: 49.3MB). Free memory was 191.3MB in the beginning and 217.4MB in the end (delta: -26.1MB). Peak memory consumption was 23.8MB. Max. memory is 8.0GB. [2023-12-16 12:33:53,426 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:33:53,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.59ms. Allocated memory is still 243.3MB. Free memory was 191.0MB in the beginning and 174.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 12:33:53,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.55ms. Allocated memory is still 243.3MB. Free memory was 174.8MB in the beginning and 172.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 12:33:53,427 INFO L158 Benchmark]: Boogie Preprocessor took 57.62ms. Allocated memory is still 243.3MB. Free memory was 172.2MB in the beginning and 168.3MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 12:33:53,427 INFO L158 Benchmark]: RCFGBuilder took 1724.13ms. Allocated memory is still 243.3MB. Free memory was 168.3MB in the beginning and 209.1MB in the end (delta: -40.8MB). Peak memory consumption was 30.6MB. Max. memory is 8.0GB. [2023-12-16 12:33:53,427 INFO L158 Benchmark]: TraceAbstraction took 75545.44ms. Allocated memory was 243.3MB in the beginning and 292.6MB in the end (delta: 49.3MB). Free memory was 208.0MB in the beginning and 217.4MB in the end (delta: -9.4MB). Peak memory consumption was 39.4MB. Max. memory is 8.0GB. [2023-12-16 12:33:53,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 313.59ms. Allocated memory is still 243.3MB. Free memory was 191.0MB in the beginning and 174.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.55ms. Allocated memory is still 243.3MB. Free memory was 174.8MB in the beginning and 172.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.62ms. Allocated memory is still 243.3MB. Free memory was 172.2MB in the beginning and 168.3MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1724.13ms. Allocated memory is still 243.3MB. Free memory was 168.3MB in the beginning and 209.1MB in the end (delta: -40.8MB). Peak memory consumption was 30.6MB. Max. memory is 8.0GB. * TraceAbstraction took 75545.44ms. Allocated memory was 243.3MB in the beginning and 292.6MB in the end (delta: 49.3MB). Free memory was 208.0MB in the beginning and 217.4MB in the end (delta: -9.4MB). Peak memory consumption was 39.4MB. 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 163 with TraceHistMax 25,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.5s, OverallIterations: 5, TraceHistogramMax: 25, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 334 SdHoareTripleChecker+Valid, 12.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 314 mSDsluCounter, 1140 SdHoareTripleChecker+Invalid, 12.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 723 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 885 IncrementalHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 417 mSDtfsCounter, 885 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 817 GetRequests, 784 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 48 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 646 NumberOfCodeBlocks, 646 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 3061 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1070 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 5880/6000 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