/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_loopvsstraightlinecode_25-1loop_file-82.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 00:59:56,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 00:59:56,287 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 00:59:56,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 00:59:56,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 00:59:56,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 00:59:56,316 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 00:59:56,317 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 00:59:56,317 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 00:59:56,320 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 00:59:56,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 00:59:56,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 00:59:56,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 00:59:56,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 00:59:56,322 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 00:59:56,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 00:59:56,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 00:59:56,323 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 00:59:56,323 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 00:59:56,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 00:59:56,324 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 00:59:56,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 00:59:56,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 00:59:56,325 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 00:59:56,325 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 00:59:56,325 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 00:59:56,325 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 00:59:56,325 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 00:59:56,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 00:59:56,326 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 00:59:56,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 00:59:56,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 00:59:56,327 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 00:59:56,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 00:59:56,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 00:59:56,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 00:59:56,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 00:59:56,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 00:59:56,328 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 00:59:56,328 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 00:59:56,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 00:59:56,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 00:59:56,328 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 00:59:56,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 00:59:56,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 00:59:56,329 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 00:59:56,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 00:59:56,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 00:59:56,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 00:59:56,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 00:59:56,550 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 00:59:56,551 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 00:59:56,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-82.i [2023-12-24 00:59:57,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 00:59:57,807 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 00:59:57,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-82.i [2023-12-24 00:59:57,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffcd71faf/7afd90b82523411e9157a8a30a25699c/FLAG18c8ff9b2 [2023-12-24 00:59:57,827 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffcd71faf/7afd90b82523411e9157a8a30a25699c [2023-12-24 00:59:57,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 00:59:57,830 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 00:59:57,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 00:59:57,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 00:59:57,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 00:59:57,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 12:59:57" (1/1) ... [2023-12-24 00:59:57,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fea5a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:57, skipping insertion in model container [2023-12-24 00:59:57,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 12:59:57" (1/1) ... [2023-12-24 00:59:57,861 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 00:59:57,955 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_loopvsstraightlinecode_25-1loop_file-82.i[915,928] [2023-12-24 00:59:57,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 00:59:57,988 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 00:59:57,998 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_loopvsstraightlinecode_25-1loop_file-82.i[915,928] [2023-12-24 00:59:58,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 00:59:58,025 INFO L206 MainTranslator]: Completed translation [2023-12-24 00:59:58,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58 WrapperNode [2023-12-24 00:59:58,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 00:59:58,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 00:59:58,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 00:59:58,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 00:59:58,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,053 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2023-12-24 00:59:58,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 00:59:58,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 00:59:58,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 00:59:58,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 00:59:58,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,070 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,081 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]. [2023-12-24 00:59:58,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,096 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 00:59:58,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 00:59:58,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 00:59:58,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 00:59:58,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (1/1) ... [2023-12-24 00:59:58,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 00:59:58,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 00:59:58,142 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) [2023-12-24 00:59:58,160 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 [2023-12-24 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 00:59:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 00:59:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 00:59:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 00:59:58,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 00:59:58,252 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 00:59:58,256 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 00:59:58,493 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 00:59:58,525 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 00:59:58,525 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 00:59:58,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 12:59:58 BoogieIcfgContainer [2023-12-24 00:59:58,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 00:59:58,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 00:59:58,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 00:59:58,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 00:59:58,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 12:59:57" (1/3) ... [2023-12-24 00:59:58,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e864bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 12:59:58, skipping insertion in model container [2023-12-24 00:59:58,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:59:58" (2/3) ... [2023-12-24 00:59:58,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e864bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 12:59:58, skipping insertion in model container [2023-12-24 00:59:58,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 12:59:58" (3/3) ... [2023-12-24 00:59:58,532 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-82.i [2023-12-24 00:59:58,544 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 00:59:58,545 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 00:59:58,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 00:59:58,606 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;@49072053, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 00:59:58,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 00:59:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-24 00:59:58,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-24 00:59:58,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 00:59:58,626 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 00:59:58,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 00:59:58,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 00:59:58,634 INFO L85 PathProgramCache]: Analyzing trace with hash -803428359, now seen corresponding path program 1 times [2023-12-24 00:59:58,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 00:59:58,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299944413] [2023-12-24 00:59:58,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 00:59:58,656 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 [2023-12-24 00:59:58,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 00:59:58,660 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) [2023-12-24 00:59:58,666 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 [2023-12-24 00:59:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 00:59:58,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 00:59:58,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 00:59:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-24 00:59:58,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 00:59:58,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 00:59:58,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299944413] [2023-12-24 00:59:58,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299944413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 00:59:58,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 00:59:58,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 00:59:58,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35776146] [2023-12-24 00:59:58,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 00:59:58,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 00:59:58,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 00:59:58,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 00:59:58,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 00:59:58,861 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-24 00:59:58,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 00:59:58,914 INFO L93 Difference]: Finished difference Result 59 states and 93 transitions. [2023-12-24 00:59:58,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 00:59:58,917 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 43 [2023-12-24 00:59:58,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 00:59:58,923 INFO L225 Difference]: With dead ends: 59 [2023-12-24 00:59:58,923 INFO L226 Difference]: Without dead ends: 28 [2023-12-24 00:59:58,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 00:59:58,929 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 00:59:58,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 00:59:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-12-24 00:59:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-12-24 00:59:58,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-24 00:59:58,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 39 transitions. [2023-12-24 00:59:58,964 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 39 transitions. Word has length 43 [2023-12-24 00:59:58,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 00:59:58,964 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 39 transitions. [2023-12-24 00:59:58,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-24 00:59:58,964 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2023-12-24 00:59:58,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-24 00:59:58,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 00:59:58,966 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 00:59:58,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-24 00:59:59,170 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 [2023-12-24 00:59:59,170 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 00:59:59,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 00:59:59,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1208433675, now seen corresponding path program 1 times [2023-12-24 00:59:59,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 00:59:59,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309401782] [2023-12-24 00:59:59,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 00:59:59,172 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 [2023-12-24 00:59:59,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 00:59:59,174 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) [2023-12-24 00:59:59,176 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 [2023-12-24 00:59:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 00:59:59,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-24 00:59:59,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 01:00:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-24 01:00:02,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 01:00:02,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 01:00:02,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309401782] [2023-12-24 01:00:02,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309401782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 01:00:02,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 01:00:02,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 01:00:02,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399616501] [2023-12-24 01:00:02,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 01:00:02,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 01:00:02,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 01:00:02,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 01:00:02,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-24 01:00:02,128 INFO L87 Difference]: Start difference. First operand 28 states and 39 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-24 01:00:02,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 01:00:02,348 INFO L93 Difference]: Finished difference Result 62 states and 84 transitions. [2023-12-24 01:00:02,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 01:00:02,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 43 [2023-12-24 01:00:02,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 01:00:02,350 INFO L225 Difference]: With dead ends: 62 [2023-12-24 01:00:02,350 INFO L226 Difference]: Without dead ends: 60 [2023-12-24 01:00:02,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-24 01:00:02,351 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 49 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 01:00:02,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 129 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 01:00:02,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-24 01:00:02,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2023-12-24 01:00:02,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 37 states have internal predecessors, (50), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-24 01:00:02,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2023-12-24 01:00:02,362 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 74 transitions. Word has length 43 [2023-12-24 01:00:02,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 01:00:02,363 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 74 transitions. [2023-12-24 01:00:02,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-24 01:00:02,363 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 74 transitions. [2023-12-24 01:00:02,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-24 01:00:02,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 01:00:02,366 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 01:00:02,370 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 [2023-12-24 01:00:02,569 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 [2023-12-24 01:00:02,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 01:00:02,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 01:00:02,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1179538666, now seen corresponding path program 1 times [2023-12-24 01:00:02,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 01:00:02,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664444190] [2023-12-24 01:00:02,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 01:00:02,572 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 [2023-12-24 01:00:02,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 01:00:02,576 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) [2023-12-24 01:00:02,632 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 [2023-12-24 01:00:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 01:00:02,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 01:00:02,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 01:00:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-24 01:00:02,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 01:00:02,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 01:00:02,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664444190] [2023-12-24 01:00:02,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664444190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 01:00:02,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 01:00:02,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 01:00:02,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579737167] [2023-12-24 01:00:02,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 01:00:02,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 01:00:02,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 01:00:02,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 01:00:02,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 01:00:02,667 INFO L87 Difference]: Start difference. First operand 52 states and 74 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-24 01:00:02,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 01:00:02,710 INFO L93 Difference]: Finished difference Result 79 states and 110 transitions. [2023-12-24 01:00:02,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 01:00:02,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2023-12-24 01:00:02,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 01:00:02,711 INFO L225 Difference]: With dead ends: 79 [2023-12-24 01:00:02,711 INFO L226 Difference]: Without dead ends: 48 [2023-12-24 01:00:02,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 01:00:02,712 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 01:00:02,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 01:00:02,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-24 01:00:02,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-24 01:00:02,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-24 01:00:02,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 64 transitions. [2023-12-24 01:00:02,719 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 64 transitions. Word has length 44 [2023-12-24 01:00:02,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 01:00:02,719 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 64 transitions. [2023-12-24 01:00:02,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-24 01:00:02,719 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions. [2023-12-24 01:00:02,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-24 01:00:02,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 01:00:02,721 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-24 01:00:02,735 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 [2023-12-24 01:00:02,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 01:00:02,933 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 01:00:02,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 01:00:02,934 INFO L85 PathProgramCache]: Analyzing trace with hash -902347554, now seen corresponding path program 1 times [2023-12-24 01:00:02,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 01:00:02,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837769413] [2023-12-24 01:00:02,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 01:00:02,935 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 [2023-12-24 01:00:02,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 01:00:02,936 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 01:00:02,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 01:00:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 01:00:03,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 01:00:03,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 01:00:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 160 proven. 1 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-24 01:00:03,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 01:00:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-24 01:00:03,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 01:00:03,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837769413] [2023-12-24 01:00:03,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837769413] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 01:00:03,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 01:00:03,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-24 01:00:03,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521510167] [2023-12-24 01:00:03,128 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 01:00:03,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 01:00:03,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 01:00:03,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 01:00:03,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-24 01:00:03,132 INFO L87 Difference]: Start difference. First operand 48 states and 64 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-24 01:00:03,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 01:00:03,180 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2023-12-24 01:00:03,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 01:00:03,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 85 [2023-12-24 01:00:03,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 01:00:03,181 INFO L225 Difference]: With dead ends: 50 [2023-12-24 01:00:03,181 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 01:00:03,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-24 01:00:03,182 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 4 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 01:00:03,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 81 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 01:00:03,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 01:00:03,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 01:00:03,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 01:00:03,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 01:00:03,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2023-12-24 01:00:03,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 01:00:03,183 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 01:00:03,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-24 01:00:03,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 01:00:03,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 01:00:03,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 01:00:03,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 01:00:03,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 01:00:03,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 01:00:03,439 INFO L895 garLoopResultBuilder]: At program point L64(line 64) the Hoare annotation is: (and (= (bvadd ~var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= (bvadd ~last_1_var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= |ULTIMATE.start_main_~k_loop~0#1| (_ bv0 32))) [2023-12-24 01:00:03,439 INFO L899 garLoopResultBuilder]: For program point L64-1(line 64) no Hoare annotation was computed. [2023-12-24 01:00:03,439 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-24 01:00:03,439 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-24 01:00:03,439 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-24 01:00:03,439 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 42) no Hoare annotation was computed. [2023-12-24 01:00:03,439 INFO L899 garLoopResultBuilder]: For program point L69(lines 59 70) no Hoare annotation was computed. [2023-12-24 01:00:03,439 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 58) no Hoare annotation was computed. [2023-12-24 01:00:03,440 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (and (= (bvadd ~var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= (bvadd ~last_1_var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= |ULTIMATE.start_main_~k_loop~0#1| (_ bv0 32))) [2023-12-24 01:00:03,440 INFO L895 garLoopResultBuilder]: At program point L61-1(line 61) the Hoare annotation is: (and (= (bvadd ~var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= (bvadd ~last_1_var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= |ULTIMATE.start_main_~k_loop~0#1| (_ bv0 32))) [2023-12-24 01:00:03,440 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-24 01:00:03,440 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2023-12-24 01:00:03,440 INFO L895 garLoopResultBuilder]: At program point L82-3(lines 82 88) the Hoare annotation is: (or (and (= (bvadd ~var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= (bvadd ~last_1_var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= |ULTIMATE.start_main_~k_loop~0#1| (_ bv0 32))) (= |ULTIMATE.start_main_~k_loop~0#1| (_ bv1 32))) [2023-12-24 01:00:03,440 INFO L899 garLoopResultBuilder]: For program point L82-4(lines 82 88) no Hoare annotation was computed. [2023-12-24 01:00:03,440 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 57) no Hoare annotation was computed. [2023-12-24 01:00:03,440 INFO L895 garLoopResultBuilder]: At program point L66(line 66) the Hoare annotation is: (and (= (bvadd ~var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= (bvadd ~last_1_var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= |ULTIMATE.start_main_~k_loop~0#1| (_ bv0 32))) [2023-12-24 01:00:03,440 INFO L899 garLoopResultBuilder]: For program point L66-1(line 66) no Hoare annotation was computed. [2023-12-24 01:00:03,440 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 01:00:03,441 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-12-24 01:00:03,441 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 54) no Hoare annotation was computed. [2023-12-24 01:00:03,441 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 01:00:03,441 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 38) no Hoare annotation was computed. [2023-12-24 01:00:03,441 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 32 58) no Hoare annotation was computed. [2023-12-24 01:00:03,441 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2023-12-24 01:00:03,441 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (and (= (bvadd ~var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= (bvadd ~last_1_var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= |ULTIMATE.start_main_~k_loop~0#1| (_ bv0 32))) [2023-12-24 01:00:03,441 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (and (= (bvadd ~var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= (bvadd ~last_1_var_1_10~0 (_ bv10 32)) (_ bv0 32)) (= |ULTIMATE.start_main_~k_loop~0#1| (_ bv0 32))) [2023-12-24 01:00:03,441 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-24 01:00:03,441 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-24 01:00:03,441 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-24 01:00:03,441 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-24 01:00:03,444 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-24 01:00:03,445 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 01:00:03,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 01:00:03 BoogieIcfgContainer [2023-12-24 01:00:03,452 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 01:00:03,452 INFO L158 Benchmark]: Toolchain (without parser) took 5622.61ms. Allocated memory was 278.9MB in the beginning and 487.6MB in the end (delta: 208.7MB). Free memory was 237.5MB in the beginning and 265.4MB in the end (delta: -27.9MB). Peak memory consumption was 181.8MB. Max. memory is 8.0GB. [2023-12-24 01:00:03,452 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 190.8MB. Free memory is still 144.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 01:00:03,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.56ms. Allocated memory is still 278.9MB. Free memory was 237.5MB in the beginning and 224.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-24 01:00:03,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.05ms. Allocated memory is still 278.9MB. Free memory was 224.9MB in the beginning and 222.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 01:00:03,453 INFO L158 Benchmark]: Boogie Preprocessor took 45.15ms. Allocated memory is still 278.9MB. Free memory was 222.8MB in the beginning and 220.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 01:00:03,453 INFO L158 Benchmark]: RCFGBuilder took 426.33ms. Allocated memory is still 278.9MB. Free memory was 220.2MB in the beginning and 203.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-24 01:00:03,453 INFO L158 Benchmark]: TraceAbstraction took 4924.71ms. Allocated memory was 278.9MB in the beginning and 487.6MB in the end (delta: 208.7MB). Free memory was 202.3MB in the beginning and 265.4MB in the end (delta: -63.0MB). Peak memory consumption was 146.2MB. Max. memory is 8.0GB. [2023-12-24 01:00:03,454 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 190.8MB. Free memory is still 144.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.56ms. Allocated memory is still 278.9MB. Free memory was 237.5MB in the beginning and 224.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.05ms. Allocated memory is still 278.9MB. Free memory was 224.9MB in the beginning and 222.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.15ms. Allocated memory is still 278.9MB. Free memory was 222.8MB in the beginning and 220.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 426.33ms. Allocated memory is still 278.9MB. Free memory was 220.2MB in the beginning and 203.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 4924.71ms. Allocated memory was 278.9MB in the beginning and 487.6MB in the end (delta: 208.7MB). Free memory was 202.3MB in the beginning and 265.4MB in the end (delta: -63.0MB). Peak memory consumption was 146.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 300 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 182 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 118 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 31 PreInvPairs, 39 NumberOfFragments, 103 HoareAnnotationTreeSize, 31 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FormulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 295 ConstructedInterpolants, 0 QuantifiedInterpolants, 618 SizeOfPredicates, 14 NumberOfNonLiveVariables, 394 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 740/742 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: ((((((var_1_10 + 10) % 4294967296) == 0) && (((last_1_var_1_10 + 10) % 4294967296) == 0)) && (k_loop == 0)) || (k_loop == 1)) RESULT: Ultimate proved your program to be correct! [2023-12-24 01:00:03,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...