/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-ci_file-46.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 10:54:32,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 10:54:32,805 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 10:54:32,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 10:54:32,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 10:54:32,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 10:54:32,831 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 10:54:32,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 10:54:32,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 10:54:32,834 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 10:54:32,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 10:54:32,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 10:54:32,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 10:54:32,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 10:54:32,837 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 10:54:32,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 10:54:32,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 10:54:32,837 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 10:54:32,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 10:54:32,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 10:54:32,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 10:54:32,838 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 10:54:32,838 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 10:54:32,839 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 10:54:32,839 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 10:54:32,839 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 10:54:32,839 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 10:54:32,839 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 10:54:32,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 10:54:32,839 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 10:54:32,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 10:54:32,840 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 10:54:32,840 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 10:54:32,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 10:54:32,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 10:54:32,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 10:54:32,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 10:54:32,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 10:54:32,841 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 10:54:32,841 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 10:54:32,841 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 10:54:32,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 10:54:32,842 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 10:54:32,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 10:54:32,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 10:54:32,842 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 10:54:32,842 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 10:54:33,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 10:54:33,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 10:54:33,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 10:54:33,050 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 10:54:33,050 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 10:54:33,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i [2023-12-23 10:54:34,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 10:54:34,242 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 10:54:34,243 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i [2023-12-23 10:54:34,248 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbe15d8b9/d3376328af7c4d458c85685ab5731730/FLAG805262abc [2023-12-23 10:54:34,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbe15d8b9/d3376328af7c4d458c85685ab5731730 [2023-12-23 10:54:34,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 10:54:34,264 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 10:54:34,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 10:54:34,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 10:54:34,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 10:54:34,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318888e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34, skipping insertion in model container [2023-12-23 10:54:34,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,291 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 10:54:34,381 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-ci_file-46.i[919,932] [2023-12-23 10:54:34,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 10:54:34,436 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 10:54:34,443 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-ci_file-46.i[919,932] [2023-12-23 10:54:34,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 10:54:34,485 INFO L206 MainTranslator]: Completed translation [2023-12-23 10:54:34,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34 WrapperNode [2023-12-23 10:54:34,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 10:54:34,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 10:54:34,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 10:54:34,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 10:54:34,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,517 INFO L138 Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 168 [2023-12-23 10:54:34,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 10:54:34,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 10:54:34,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 10:54:34,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 10:54:34,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,530 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,545 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]. [2023-12-23 10:54:34,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 10:54:34,584 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 10:54:34,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 10:54:34,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 10:54:34,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (1/1) ... [2023-12-23 10:54:34,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 10:54:34,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 10:54:34,605 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) [2023-12-23 10:54:34,614 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 [2023-12-23 10:54:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 10:54:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 10:54:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 10:54:34,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 10:54:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 10:54:34,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 10:54:34,682 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 10:54:34,683 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 10:54:48,019 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 10:54:48,051 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 10:54:48,051 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 10:54:48,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:54:48 BoogieIcfgContainer [2023-12-23 10:54:48,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 10:54:48,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 10:54:48,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 10:54:48,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 10:54:48,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:54:34" (1/3) ... [2023-12-23 10:54:48,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7128ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:54:48, skipping insertion in model container [2023-12-23 10:54:48,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:54:34" (2/3) ... [2023-12-23 10:54:48,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7128ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:54:48, skipping insertion in model container [2023-12-23 10:54:48,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:54:48" (3/3) ... [2023-12-23 10:54:48,057 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-46.i [2023-12-23 10:54:48,069 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 10:54:48,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 10:54:48,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 10:54:48,107 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;@2ac55aaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 10:54:48,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 10:54:48,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 43 states have internal predecessors, (64), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-23 10:54:48,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-23 10:54:48,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 10:54:48,138 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 10:54:48,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 10:54:48,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 10:54:48,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1892454879, now seen corresponding path program 1 times [2023-12-23 10:54:48,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 10:54:48,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016420903] [2023-12-23 10:54:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 10:54:48,152 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 [2023-12-23 10:54:48,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 10:54:48,156 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) [2023-12-23 10:54:48,159 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 [2023-12-23 10:54:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 10:54:48,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 10:54:48,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 10:54:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2023-12-23 10:54:48,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 10:54:48,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 10:54:48,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016420903] [2023-12-23 10:54:48,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016420903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 10:54:48,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 10:54:48,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 10:54:48,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60492579] [2023-12-23 10:54:48,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 10:54:48,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 10:54:48,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 10:54:48,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 10:54:48,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 10:54:48,922 INFO L87 Difference]: Start difference. First operand has 68 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 43 states have internal predecessors, (64), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-23 10:54:53,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 10:54:53,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 10:54:53,625 INFO L93 Difference]: Finished difference Result 132 states and 239 transitions. [2023-12-23 10:54:53,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 10:54:53,865 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2023-12-23 10:54:53,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 10:54:53,870 INFO L225 Difference]: With dead ends: 132 [2023-12-23 10:54:53,870 INFO L226 Difference]: Without dead ends: 65 [2023-12-23 10:54:53,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 10:54:53,875 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-23 10:54:53,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-12-23 10:54:53,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-12-23 10:54:53,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-12-23 10:54:53,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-23 10:54:53,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 101 transitions. [2023-12-23 10:54:53,908 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 101 transitions. Word has length 145 [2023-12-23 10:54:53,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 10:54:53,908 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 101 transitions. [2023-12-23 10:54:53,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-23 10:54:53,909 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 101 transitions. [2023-12-23 10:54:53,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-23 10:54:53,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 10:54:53,911 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 10:54:53,925 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 [2023-12-23 10:54:54,112 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 [2023-12-23 10:54:54,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 10:54:54,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 10:54:54,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1978970192, now seen corresponding path program 1 times [2023-12-23 10:54:54,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 10:54:54,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749782294] [2023-12-23 10:54:54,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 10:54:54,118 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 [2023-12-23 10:54:54,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 10:54:54,120 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) [2023-12-23 10:54:54,126 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 [2023-12-23 10:54:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 10:54:54,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 10:54:54,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 10:54:54,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-23 10:54:54,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 10:54:54,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 10:54:54,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749782294] [2023-12-23 10:54:54,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749782294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 10:54:54,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 10:54:54,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 10:54:54,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398114253] [2023-12-23 10:54:54,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 10:54:54,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 10:54:54,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 10:54:54,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 10:54:54,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 10:54:54,964 INFO L87 Difference]: Start difference. First operand 65 states and 101 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-23 10:54:59,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 10:55:03,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 10:55:04,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 10:55:04,687 INFO L93 Difference]: Finished difference Result 148 states and 230 transitions. [2023-12-23 10:55:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 10:55:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 146 [2023-12-23 10:55:04,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 10:55:04,929 INFO L225 Difference]: With dead ends: 148 [2023-12-23 10:55:04,930 INFO L226 Difference]: Without dead ends: 84 [2023-12-23 10:55:04,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 10:55:04,931 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 23 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-12-23 10:55:04,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 182 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2023-12-23 10:55:04,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-23 10:55:04,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 73. [2023-12-23 10:55:04,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 48 states have internal predecessors, (67), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-23 10:55:04,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 113 transitions. [2023-12-23 10:55:04,941 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 113 transitions. Word has length 146 [2023-12-23 10:55:04,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 10:55:04,942 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 113 transitions. [2023-12-23 10:55:04,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-23 10:55:04,943 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 113 transitions. [2023-12-23 10:55:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-23 10:55:04,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 10:55:04,944 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 10:55:04,960 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 [2023-12-23 10:55:05,154 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 [2023-12-23 10:55:05,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 10:55:05,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 10:55:05,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1883672752, now seen corresponding path program 1 times [2023-12-23 10:55:05,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 10:55:05,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322265302] [2023-12-23 10:55:05,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 10:55:05,156 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 [2023-12-23 10:55:05,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 10:55:05,157 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) [2023-12-23 10:55:05,159 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 [2023-12-23 10:55:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 10:55:05,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 10:55:05,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 10:55:09,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 462 proven. 96 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-12-23 10:55:09,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 10:55:10,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 10:55:10,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322265302] [2023-12-23 10:55:10,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322265302] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 10:55:10,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1918158515] [2023-12-23 10:55:10,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 10:55:10,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 10:55:10,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 10:55:10,456 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 10:55:10,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-23 10:55:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 10:55:11,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 10:55:11,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 10:55:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 462 proven. 96 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-12-23 10:55:15,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 10:55:15,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1918158515] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 10:55:15,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 10:55:15,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-12-23 10:55:15,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823284555] [2023-12-23 10:55:15,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 10:55:15,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 10:55:15,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 10:55:15,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 10:55:15,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-23 10:55:15,455 INFO L87 Difference]: Start difference. First operand 73 states and 113 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-23 10:55:24,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 10:55:28,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 10:55:32,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 10:55:36,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 10:55:40,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 10:55:44,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 10:55:48,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 10:55:51,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 10:55:54,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 10:55:54,085 INFO L93 Difference]: Finished difference Result 190 states and 280 transitions. [2023-12-23 10:55:54,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-23 10:55:54,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 146 [2023-12-23 10:55:54,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 10:55:54,088 INFO L225 Difference]: With dead ends: 190 [2023-12-23 10:55:54,088 INFO L226 Difference]: Without dead ends: 118 [2023-12-23 10:55:54,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2023-12-23 10:55:54,091 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 121 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 21 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2023-12-23 10:55:54,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 228 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 462 Invalid, 7 Unknown, 0 Unchecked, 37.4s Time] [2023-12-23 10:55:54,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-23 10:55:54,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 109. [2023-12-23 10:55:54,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 78 states have internal predecessors, (104), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-23 10:55:54,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 158 transitions. [2023-12-23 10:55:54,102 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 158 transitions. Word has length 146 [2023-12-23 10:55:54,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 10:55:54,102 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 158 transitions. [2023-12-23 10:55:54,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-23 10:55:54,103 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 158 transitions. [2023-12-23 10:55:54,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-23 10:55:54,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 10:55:54,104 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 10:55:54,119 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 [2023-12-23 10:55:54,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-23 10:55:54,516 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 10:55:54,517 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 10:55:54,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 10:55:54,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1741919145, now seen corresponding path program 1 times [2023-12-23 10:55:54,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 10:55:54,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682022552] [2023-12-23 10:55:54,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 10:55:54,518 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 [2023-12-23 10:55:54,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 10:55:54,519 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) [2023-12-23 10:55:54,525 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 [2023-12-23 10:57:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 10:57:28,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 10:57:28,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 10:57:45,285 WARN L293 SmtUtils]: Spent 8.53s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:57:49,525 WARN L854 $PredicateComparison]: unable to prove that (exists ((~var_1_11~0 (_ FloatingPoint 8 24))) (fp.eq (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 255.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_11~0)) ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 4999998.0 5.0))))) is different from false [2023-12-23 10:57:53,671 WARN L876 $PredicateComparison]: unable to prove that (exists ((~var_1_11~0 (_ FloatingPoint 8 24))) (fp.eq (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 255.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_11~0)) ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 4999998.0 5.0))))) is different from true [2023-12-23 10:58:06,414 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:58:19,147 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:58:31,878 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:58:44,634 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:58:57,363 WARN L293 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:59:10,124 WARN L293 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:59:22,868 WARN L293 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:59:35,656 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 10:59:48,385 WARN L293 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:00:01,157 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:00:13,933 WARN L293 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:00:26,687 WARN L293 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:00:39,418 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:00:52,197 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:01:04,934 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:01:04,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-23 11:01:04,935 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 11:01:04,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:01:04,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682022552] [2023-12-23 11:01:04,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682022552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 11:01:04,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 11:01:04,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 11:01:04,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999319381] [2023-12-23 11:01:04,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 11:01:04,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 11:01:04,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:01:04,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 11:01:04,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=7, Unknown=2, NotChecked=4, Total=20 [2023-12-23 11:01:04,937 INFO L87 Difference]: Start difference. First operand 109 states and 158 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-23 11:01:09,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:14,298 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 255.0 2.0)))) (and (= c_~var_1_17~0 .cse0) (exists ((~var_1_11~0 (_ FloatingPoint 8 24))) (fp.eq (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 255.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_11~0)) ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 4999998.0 5.0))))) (= c_~last_1_var_1_17~0 .cse0) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-12-23 11:01:18,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:23,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:27,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:31,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:35,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:39,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:45,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:49,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:53,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:57,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:01:57,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:01:57,966 INFO L93 Difference]: Finished difference Result 226 states and 328 transitions. [2023-12-23 11:01:58,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 11:01:58,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 147 [2023-12-23 11:01:58,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:01:58,229 INFO L225 Difference]: With dead ends: 226 [2023-12-23 11:01:58,230 INFO L226 Difference]: Without dead ends: 224 [2023-12-23 11:01:58,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=13, Invalid=12, Unknown=3, NotChecked=14, Total=42 [2023-12-23 11:01:58,232 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 67 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 47 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 278 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time [2023-12-23 11:01:58,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 336 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 14 Invalid, 11 Unknown, 278 Unchecked, 48.4s Time] [2023-12-23 11:01:58,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-12-23 11:01:58,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 174. [2023-12-23 11:01:58,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 116 states have (on average 1.3017241379310345) internal successors, (151), 117 states have internal predecessors, (151), 50 states have call successors, (50), 7 states have call predecessors, (50), 7 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-23 11:01:58,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 251 transitions. [2023-12-23 11:01:58,280 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 251 transitions. Word has length 147 [2023-12-23 11:01:58,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:01:58,281 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 251 transitions. [2023-12-23 11:01:58,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-23 11:01:58,281 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 251 transitions. [2023-12-23 11:01:58,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-23 11:01:58,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:01:58,283 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 11:01:58,311 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 [2023-12-23 11:01:58,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2023-12-23 11:01:58,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:01:58,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:01:58,484 INFO L85 PathProgramCache]: Analyzing trace with hash 33088217, now seen corresponding path program 1 times [2023-12-23 11:01:58,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:01:58,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578712938] [2023-12-23 11:01:58,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:01:58,485 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 [2023-12-23 11:01:58,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:01:58,486 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2023-12-23 11:01:58,500 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 (7)] Waiting until timeout for monitored process [2023-12-23 11:01:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:01:59,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 11:01:59,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:02:03,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 657 proven. 90 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-12-23 11:02:03,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 11:02:03,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:02:03,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578712938] [2023-12-23 11:02:03,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578712938] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 11:02:03,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [610664069] [2023-12-23 11:02:03,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:02:03,807 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 11:02:03,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 11:02:03,808 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 11:02:03,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-23 11:02:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:02:04,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 11:02:04,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:02:07,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 638 proven. 72 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2023-12-23 11:02:07,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 11:02:08,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [610664069] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 11:02:08,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 11:02:08,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 13 [2023-12-23 11:02:08,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225565203] [2023-12-23 11:02:08,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 11:02:08,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-23 11:02:08,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:02:08,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-23 11:02:08,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-23 11:02:08,094 INFO L87 Difference]: Start difference. First operand 174 states and 251 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 5 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2023-12-23 11:02:16,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:20,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:24,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:28,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:32,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:36,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:40,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:44,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:48,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:52,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:54,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:54,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:02:54,324 INFO L93 Difference]: Finished difference Result 337 states and 465 transitions. [2023-12-23 11:02:54,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-23 11:02:54,325 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 5 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) Word has length 147 [2023-12-23 11:02:54,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:02:54,328 INFO L225 Difference]: With dead ends: 337 [2023-12-23 11:02:54,328 INFO L226 Difference]: Without dead ends: 229 [2023-12-23 11:02:54,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2023-12-23 11:02:54,329 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 134 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 49 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.1s IncrementalHoareTripleChecker+Time [2023-12-23 11:02:54,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 223 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 393 Invalid, 9 Unknown, 0 Unchecked, 45.1s Time] [2023-12-23 11:02:54,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-12-23 11:02:54,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 194. [2023-12-23 11:02:54,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 131 states have (on average 1.2671755725190839) internal successors, (166), 132 states have internal predecessors, (166), 50 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-23 11:02:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 266 transitions. [2023-12-23 11:02:54,357 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 266 transitions. Word has length 147 [2023-12-23 11:02:54,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:02:54,359 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 266 transitions. [2023-12-23 11:02:54,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 5 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2023-12-23 11:02:54,360 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 266 transitions. [2023-12-23 11:02:54,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-23 11:02:54,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:02:54,363 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 11:02:54,384 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 (7)] Forceful destruction successful, exit code 0 [2023-12-23 11:02:54,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-23 11:02:54,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 11:02:54,781 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:02:54,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:02:54,781 INFO L85 PathProgramCache]: Analyzing trace with hash -2134946155, now seen corresponding path program 1 times [2023-12-23 11:02:54,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:02:54,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797096980] [2023-12-23 11:02:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:02:54,782 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 [2023-12-23 11:02:54,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:02:54,783 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-12-23 11:02:54,783 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 (9)] Waiting until timeout for monitored process [2023-12-23 11:04:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:04:52,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 11:04:52,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:05:09,115 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:05:13,370 WARN L854 $PredicateComparison]: unable to prove that (exists ((~var_1_11~0 (_ FloatingPoint 8 24))) (fp.eq (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 255.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_11~0)) ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 4999998.0 5.0))))) is different from false [2023-12-23 11:05:17,531 WARN L876 $PredicateComparison]: unable to prove that (exists ((~var_1_11~0 (_ FloatingPoint 8 24))) (fp.eq (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 255.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_11~0)) ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 4999998.0 5.0))))) is different from true [2023-12-23 11:05:30,346 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:05:43,075 WARN L293 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:05:55,850 WARN L293 SmtUtils]: Spent 8.53s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:06:08,558 WARN L293 SmtUtils]: Spent 8.46s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:06:21,293 WARN L293 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:06:34,060 WARN L293 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:06:46,809 WARN L293 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:06:57,598 WARN L293 SmtUtils]: Spent 6.52s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:07:10,391 WARN L293 SmtUtils]: Spent 8.54s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:07:23,171 WARN L293 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:07:35,921 WARN L293 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:07:48,684 WARN L293 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:08:01,419 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:08:13,974 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:08:26,735 WARN L293 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:08:26,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-23 11:08:26,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 11:08:26,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:08:26,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797096980] [2023-12-23 11:08:26,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797096980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 11:08:26,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 11:08:26,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 11:08:26,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941960215] [2023-12-23 11:08:26,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 11:08:26,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 11:08:26,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:08:26,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 11:08:26,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=7, Unknown=2, NotChecked=4, Total=20 [2023-12-23 11:08:26,738 INFO L87 Difference]: Start difference. First operand 194 states and 266 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-23 11:08:31,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:08:36,164 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 255.0 2.0)))) (and (= c_~var_1_17~0 .cse0) (exists ((~var_1_11~0 (_ FloatingPoint 8 24))) (fp.eq (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 255.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_11~0)) ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 4999998.0 5.0))))) (= c_~last_1_var_1_17~0 .cse0) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-12-23 11:08:40,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:08:45,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:08:49,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:08:51,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:08:55,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:08:59,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:09:04,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:09:08,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:09:13,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:09:17,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:09:17,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:09:17,951 INFO L93 Difference]: Finished difference Result 254 states and 354 transitions. [2023-12-23 11:09:18,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 11:09:18,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 147 [2023-12-23 11:09:18,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:09:18,200 INFO L225 Difference]: With dead ends: 254 [2023-12-23 11:09:18,200 INFO L226 Difference]: Without dead ends: 252 [2023-12-23 11:09:18,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=13, Invalid=12, Unknown=3, NotChecked=14, Total=42 [2023-12-23 11:09:18,201 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 67 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 47 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 278 IncrementalHoareTripleChecker+Unchecked, 46.6s IncrementalHoareTripleChecker+Time [2023-12-23 11:09:18,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 336 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 15 Invalid, 10 Unknown, 278 Unchecked, 46.6s Time] [2023-12-23 11:09:18,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-23 11:09:18,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 194. [2023-12-23 11:09:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 131 states have (on average 1.2671755725190839) internal successors, (166), 132 states have internal predecessors, (166), 50 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-23 11:09:18,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 266 transitions. [2023-12-23 11:09:18,212 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 266 transitions. Word has length 147 [2023-12-23 11:09:18,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:09:18,212 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 266 transitions. [2023-12-23 11:09:18,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-23 11:09:18,212 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 266 transitions. [2023-12-23 11:09:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-23 11:09:18,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:09:18,214 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 11:09:18,242 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 (9)] Forceful destruction successful, exit code 0 [2023-12-23 11:09:18,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 [2023-12-23 11:09:18,432 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:09:18,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:09:18,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1488640740, now seen corresponding path program 1 times [2023-12-23 11:09:18,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:09:18,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804933204] [2023-12-23 11:09:18,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:09:18,433 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 [2023-12-23 11:09:18,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:09:18,434 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-12-23 11:09:18,435 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 (10)] Waiting until timeout for monitored process Received shutdown request... [2023-12-23 11:09:19,187 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 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 11:09:19,193 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 [2023-12-23 11:09:20,387 WARN L435 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 (10)] Forcibly destroying the process [2023-12-23 11:09:20,394 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 [2023-12-23 11:09:20,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-23 11:09:20,400 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 11:09:20,408 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 (10)] Forceful destruction successful, exit code 137 [2023-12-23 11:09:20,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 [2023-12-23 11:09:20,408 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 148 with TraceHistMax 23,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1804933204] and IpTcStrategyModuleCvc4 [1426783348]. [2023-12-23 11:09:20,412 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-23 11:09:20,413 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 11:09:20,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 11:09:20 BoogieIcfgContainer [2023-12-23 11:09:20,415 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 11:09:20,415 INFO L158 Benchmark]: Toolchain (without parser) took 886150.99ms. Allocated memory was 199.2MB in the beginning and 245.4MB in the end (delta: 46.1MB). Free memory was 165.5MB in the beginning and 99.4MB in the end (delta: 66.1MB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. [2023-12-23 11:09:20,415 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory is still 156.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 11:09:20,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.78ms. Allocated memory is still 199.2MB. Free memory was 165.3MB in the beginning and 149.7MB in the end (delta: 15.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-23 11:09:20,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.18ms. Allocated memory is still 199.2MB. Free memory was 149.7MB in the beginning and 147.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-23 11:09:20,415 INFO L158 Benchmark]: Boogie Preprocessor took 65.44ms. Allocated memory is still 199.2MB. Free memory was 147.2MB in the beginning and 143.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 11:09:20,416 INFO L158 Benchmark]: RCFGBuilder took 13467.98ms. Allocated memory is still 199.2MB. Free memory was 143.5MB in the beginning and 116.8MB in the end (delta: 26.8MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-23 11:09:20,428 INFO L158 Benchmark]: TraceAbstraction took 872361.42ms. Allocated memory was 199.2MB in the beginning and 245.4MB in the end (delta: 46.1MB). Free memory was 116.0MB in the beginning and 99.4MB in the end (delta: 16.5MB). Peak memory consumption was 63.8MB. Max. memory is 8.0GB. [2023-12-23 11:09:20,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-23 11:09:20,430 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 199.2MB. Free memory is still 156.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 220.78ms. Allocated memory is still 199.2MB. Free memory was 165.3MB in the beginning and 149.7MB in the end (delta: 15.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.18ms. Allocated memory is still 199.2MB. Free memory was 149.7MB in the beginning and 147.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.44ms. Allocated memory is still 199.2MB. Free memory was 147.2MB in the beginning and 143.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 13467.98ms. Allocated memory is still 199.2MB. Free memory was 143.5MB in the beginning and 116.8MB in the end (delta: 26.8MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 872361.42ms. Allocated memory was 199.2MB in the beginning and 245.4MB in the end (delta: 46.1MB). Free memory was 116.0MB in the beginning and 99.4MB in the end (delta: 16.5MB). Peak memory consumption was 63.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 148 with TraceHistMax 23,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1804933204] and IpTcStrategyModuleCvc4 [1426783348]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 872.3s, OverallIterations: 7, TraceHistogramMax: 23, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 204.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 mSolverCounterUnknown, 420 SdHoareTripleChecker+Valid, 191.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 412 mSDsluCounter, 1403 SdHoareTripleChecker+Invalid, 189.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 556 IncrementalHoareTripleChecker+Unchecked, 833 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 898 IncrementalHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 570 mSDtfsCounter, 898 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1268 GetRequests, 1216 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 30.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=5, InterpolantAutomatonStates: 52, 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, 6 MinimizatonAttempts, 163 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 216.6s SatisfiabilityAnalysisTime, 446.9s InterpolantComputationTime, 1171 NumberOfCodeBlocks, 1171 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1163 ConstructedInterpolants, 46 QuantifiedInterpolants, 6906 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1998 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 7742/8096 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