/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-27.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 00:08:16,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 00:08:16,862 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 00:08:16,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 00:08:16,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 00:08:16,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 00:08:16,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 00:08:16,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 00:08:16,882 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 00:08:16,882 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 00:08:16,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 00:08:16,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 00:08:16,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 00:08:16,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 00:08:16,883 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 00:08:16,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 00:08:16,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 00:08:16,884 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 00:08:16,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 00:08:16,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 00:08:16,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 00:08:16,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 00:08:16,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 00:08:16,886 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 00:08:16,886 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 00:08:16,886 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 00:08:16,886 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 00:08:16,886 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 00:08:16,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 00:08:16,887 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 00:08:16,887 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 00:08:16,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 00:08:16,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 00:08:16,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 00:08:16,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 00:08:16,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 00:08:16,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 00:08:16,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 00:08:16,889 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 00:08:16,889 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 00:08:16,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 00:08:16,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 00:08:16,889 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 00:08:16,890 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 00:08:16,890 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 00:08:16,890 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 00:08:16,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 00:08:17,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 00:08:17,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 00:08:17,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 00:08:17,072 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 00:08:17,072 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 00:08:17,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-27.i [2023-12-24 00:08:18,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 00:08:18,383 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 00:08:18,384 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-27.i [2023-12-24 00:08:18,390 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a5a15eca/ebae294af43a481fa693b349090b68f2/FLAG50d9070b8 [2023-12-24 00:08:18,400 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a5a15eca/ebae294af43a481fa693b349090b68f2 [2023-12-24 00:08:18,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 00:08:18,403 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 00:08:18,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 00:08:18,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 00:08:18,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 00:08:18,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bf35b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18, skipping insertion in model container [2023-12-24 00:08:18,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,432 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 00:08:18,545 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-27.i[915,928] [2023-12-24 00:08:18,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 00:08:18,585 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 00:08:18,595 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-27.i[915,928] [2023-12-24 00:08:18,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 00:08:18,620 INFO L206 MainTranslator]: Completed translation [2023-12-24 00:08:18,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18 WrapperNode [2023-12-24 00:08:18,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 00:08:18,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 00:08:18,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 00:08:18,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 00:08:18,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,649 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2023-12-24 00:08:18,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 00:08:18,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 00:08:18,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 00:08:18,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 00:08:18,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,662 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,677 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 00:08:18,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 00:08:18,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 00:08:18,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 00:08:18,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 00:08:18,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (1/1) ... [2023-12-24 00:08:18,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 00:08:18,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 00:08:18,722 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 00:08:18,730 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 00:08:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 00:08:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 00:08:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 00:08:18,746 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 00:08:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 00:08:18,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 00:08:18,801 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 00:08:18,803 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 00:08:19,005 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 00:08:19,044 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 00:08:19,044 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 00:08:19,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 12:08:19 BoogieIcfgContainer [2023-12-24 00:08:19,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 00:08:19,046 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 00:08:19,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 00:08:19,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 00:08:19,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 12:08:18" (1/3) ... [2023-12-24 00:08:19,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2499611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 12:08:19, skipping insertion in model container [2023-12-24 00:08:19,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:08:18" (2/3) ... [2023-12-24 00:08:19,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2499611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 12:08:19, skipping insertion in model container [2023-12-24 00:08:19,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 12:08:19" (3/3) ... [2023-12-24 00:08:19,051 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-27.i [2023-12-24 00:08:19,063 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 00:08:19,063 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 00:08:19,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 00:08:19,101 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;@2f72e1ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 00:08:19,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 00:08:19,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-24 00:08:19,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-24 00:08:19,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 00:08:19,116 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:08:19,116 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 00:08:19,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 00:08:19,120 INFO L85 PathProgramCache]: Analyzing trace with hash 774957483, now seen corresponding path program 1 times [2023-12-24 00:08:19,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 00:08:19,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301875787] [2023-12-24 00:08:19,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 00:08:19,130 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 00:08:19,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 00:08:19,133 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 00:08:19,139 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 00:08:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 00:08:19,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 00:08:19,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 00:08:19,280 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-12-24 00:08:19,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 00:08:19,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 00:08:19,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301875787] [2023-12-24 00:08:19,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301875787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 00:08:19,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 00:08:19,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 00:08:19,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142143715] [2023-12-24 00:08:19,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 00:08:19,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 00:08:19,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 00:08:19,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 00:08:19,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 00:08:19,307 INFO L87 Difference]: Start difference. First operand has 44 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 00:08:19,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 00:08:19,356 INFO L93 Difference]: Finished difference Result 87 states and 150 transitions. [2023-12-24 00:08:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 00:08:19,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 103 [2023-12-24 00:08:19,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 00:08:19,363 INFO L225 Difference]: With dead ends: 87 [2023-12-24 00:08:19,364 INFO L226 Difference]: Without dead ends: 42 [2023-12-24 00:08:19,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 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 00:08:19,369 INFO L413 NwaCegarLoop]: 59 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, 59 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 00:08:19,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 00:08:19,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-12-24 00:08:19,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-12-24 00:08:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-24 00:08:19,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 62 transitions. [2023-12-24 00:08:19,399 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 62 transitions. Word has length 103 [2023-12-24 00:08:19,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 00:08:19,399 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 62 transitions. [2023-12-24 00:08:19,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 00:08:19,399 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 62 transitions. [2023-12-24 00:08:19,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-24 00:08:19,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 00:08:19,401 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:08:19,406 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 [2023-12-24 00:08:19,608 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 00:08:19,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 00:08:19,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 00:08:19,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1463489641, now seen corresponding path program 1 times [2023-12-24 00:08:19,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 00:08:19,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761703748] [2023-12-24 00:08:19,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 00:08:19,613 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 00:08:19,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 00:08:19,615 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 00:08:19,616 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 00:08:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 00:08:19,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-24 00:08:19,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 00:08:29,816 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 114 proven. 117 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-12-24 00:08:29,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 00:09:00,478 WARN L293 SmtUtils]: Spent 10.53s on a formula simplification. DAG size of input: 164 DAG size of output: 160 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 00:09:16,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 00:09:16,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761703748] [2023-12-24 00:09:16,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761703748] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 00:09:16,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [956967885] [2023-12-24 00:09:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 00:09:16,786 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 00:09:16,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 00:09:16,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 00:09:16,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-24 00:09:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 00:09:17,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-24 00:09:17,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 00:09:22,717 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 95 proven. 84 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-12-24 00:09:22,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 00:09:53,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [956967885] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 00:09:53,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 00:09:53,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 27 [2023-12-24 00:09:53,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012447459] [2023-12-24 00:09:53,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 00:09:53,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-24 00:09:53,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 00:09:53,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-24 00:09:53,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=845, Unknown=0, NotChecked=0, Total=1056 [2023-12-24 00:09:53,179 INFO L87 Difference]: Start difference. First operand 42 states and 62 transitions. Second operand has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 26 states have internal predecessors, (61), 7 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-24 00:09:57,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 00:09:57,717 INFO L93 Difference]: Finished difference Result 191 states and 256 transitions. [2023-12-24 00:09:57,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-24 00:09:57,718 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 26 states have internal predecessors, (61), 7 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 103 [2023-12-24 00:09:57,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 00:09:57,721 INFO L225 Difference]: With dead ends: 191 [2023-12-24 00:09:57,721 INFO L226 Difference]: Without dead ends: 189 [2023-12-24 00:09:57,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=728, Invalid=3054, Unknown=0, NotChecked=0, Total=3782 [2023-12-24 00:09:57,723 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 259 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-24 00:09:57,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 322 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-24 00:09:57,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-24 00:09:57,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 98. [2023-12-24 00:09:57,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 58 states have internal predecessors, (69), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-24 00:09:57,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2023-12-24 00:09:57,743 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 103 [2023-12-24 00:09:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 00:09:57,743 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2023-12-24 00:09:57,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 26 states have internal predecessors, (61), 7 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-24 00:09:57,744 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2023-12-24 00:09:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-24 00:09:57,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 00:09:57,745 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:09:57,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-24 00:09:57,953 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 00:09:58,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 00:09:58,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 00:09:58,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 00:09:58,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1520747943, now seen corresponding path program 1 times [2023-12-24 00:09:58,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 00:09:58,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248840757] [2023-12-24 00:09:58,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 00:09:58,154 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 00:09:58,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 00:09:58,156 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 00:09:58,169 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 00:09:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 00:09:58,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-24 00:09:58,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 00:10:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 114 proven. 117 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-12-24 00:10:05,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 00:10:39,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 00:10:39,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248840757] [2023-12-24 00:10:39,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248840757] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 00:10:39,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [878831742] [2023-12-24 00:10:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 00:10:39,339 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 00:10:39,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 00:10:39,340 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 00:10:39,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-24 00:10:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 00:10:39,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-24 00:10:39,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 00:10:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 340 proven. 99 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-24 00:10:46,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 00:11:19,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [878831742] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 00:11:19,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 00:11:19,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22] total 36 [2023-12-24 00:11:19,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621780999] [2023-12-24 00:11:19,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 00:11:19,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-24 00:11:19,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 00:11:19,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-24 00:11:19,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=1566, Unknown=0, NotChecked=0, Total=1980 [2023-12-24 00:11:19,078 INFO L87 Difference]: Start difference. First operand 98 states and 137 transitions. Second operand has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 34 states have internal predecessors, (76), 10 states have call successors, (34), 10 states have call predecessors, (34), 14 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) [2023-12-24 00:11:29,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 00:11:29,813 INFO L93 Difference]: Finished difference Result 201 states and 263 transitions. [2023-12-24 00:11:29,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-24 00:11:29,814 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 34 states have internal predecessors, (76), 10 states have call successors, (34), 10 states have call predecessors, (34), 14 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) Word has length 103 [2023-12-24 00:11:29,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 00:11:29,815 INFO L225 Difference]: With dead ends: 201 [2023-12-24 00:11:29,816 INFO L226 Difference]: Without dead ends: 199 [2023-12-24 00:11:29,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1866 ImplicationChecksByTransitivity, 33.3s TimeCoverageRelationStatistics Valid=1352, Invalid=5454, Unknown=0, NotChecked=0, Total=6806 [2023-12-24 00:11:29,819 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 171 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-24 00:11:29,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 424 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-24 00:11:29,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-12-24 00:11:29,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 151. [2023-12-24 00:11:29,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 87 states have (on average 1.1264367816091954) internal successors, (98), 88 states have internal predecessors, (98), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-24 00:11:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 200 transitions. [2023-12-24 00:11:29,859 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 200 transitions. Word has length 103 [2023-12-24 00:11:29,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 00:11:29,861 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 200 transitions. [2023-12-24 00:11:29,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.054054054054054) internal successors, (76), 34 states have internal predecessors, (76), 10 states have call successors, (34), 10 states have call predecessors, (34), 14 states have return successors, (34), 10 states have call predecessors, (34), 10 states have call successors, (34) [2023-12-24 00:11:29,863 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 200 transitions. [2023-12-24 00:11:29,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-24 00:11:29,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 00:11:29,868 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:11:29,876 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 00:11:30,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-24 00:11:30,278 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 00:11:30,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 00:11:30,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 00:11:30,281 INFO L85 PathProgramCache]: Analyzing trace with hash 654143015, now seen corresponding path program 1 times [2023-12-24 00:11:30,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 00:11:30,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997600299] [2023-12-24 00:11:30,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 00:11:30,282 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 00:11:30,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 00:11:30,284 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) [2023-12-24 00:11:30,285 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 [2023-12-24 00:11:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 00:11:30,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 00:11:30,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 00:11:30,572 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-24 00:11:30,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 00:11:30,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 00:11:30,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997600299] [2023-12-24 00:11:30,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997600299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 00:11:30,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 00:11:30,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 00:11:30,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836982301] [2023-12-24 00:11:30,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 00:11:30,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 00:11:30,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 00:11:30,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 00:11:30,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 00:11:30,575 INFO L87 Difference]: Start difference. First operand 151 states and 200 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 00:11:30,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 00:11:30,849 INFO L93 Difference]: Finished difference Result 249 states and 335 transitions. [2023-12-24 00:11:30,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 00:11:30,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 103 [2023-12-24 00:11:30,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 00:11:30,858 INFO L225 Difference]: With dead ends: 249 [2023-12-24 00:11:30,858 INFO L226 Difference]: Without dead ends: 152 [2023-12-24 00:11:30,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 00:11:30,859 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 49 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 00:11:30,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 220 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 00:11:30,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-24 00:11:30,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 145. [2023-12-24 00:11:30,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 81 states have (on average 1.0864197530864197) internal successors, (88), 82 states have internal predecessors, (88), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-24 00:11:30,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 190 transitions. [2023-12-24 00:11:30,910 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 190 transitions. Word has length 103 [2023-12-24 00:11:30,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 00:11:30,911 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 190 transitions. [2023-12-24 00:11:30,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 00:11:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 190 transitions. [2023-12-24 00:11:30,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-24 00:11:30,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 00:11:30,912 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:11:30,918 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 [2023-12-24 00:11:31,122 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 [2023-12-24 00:11:31,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 00:11:31,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 00:11:31,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1886023323, now seen corresponding path program 1 times [2023-12-24 00:11:31,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 00:11:31,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780578174] [2023-12-24 00:11:31,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 00:11:31,123 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 00:11:31,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 00:11:31,125 INFO L229 MonitoredProcess]: Starting monitored process 8 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 00:11:31,139 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 (8)] Waiting until timeout for monitored process [2023-12-24 00:11:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 00:11:31,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 00:11:31,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 00:11:31,346 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-24 00:11:31,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 00:11:31,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 00:11:31,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780578174] [2023-12-24 00:11:31,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780578174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 00:11:31,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 00:11:31,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 00:11:31,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324866030] [2023-12-24 00:11:31,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 00:11:31,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 00:11:31,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 00:11:31,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 00:11:31,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-24 00:11:31,348 INFO L87 Difference]: Start difference. First operand 145 states and 190 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 00:11:31,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 00:11:31,533 INFO L93 Difference]: Finished difference Result 145 states and 190 transitions. [2023-12-24 00:11:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 00:11:31,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 104 [2023-12-24 00:11:31,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 00:11:31,534 INFO L225 Difference]: With dead ends: 145 [2023-12-24 00:11:31,534 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 00:11:31,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-24 00:11:31,536 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 27 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 00:11:31,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 65 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 00:11:31,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 00:11:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 00:11:31,537 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 00:11:31,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 00:11:31,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2023-12-24 00:11:31,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 00:11:31,538 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 00:11:31,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-24 00:11:31,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 00:11:31,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 00:11:31,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 00:11:31,547 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 (8)] Ended with exit code 0 [2023-12-24 00:11:31,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 00:11:31,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 00:11:32,347 INFO L899 garLoopResultBuilder]: For program point L85(lines 60 86) no Hoare annotation was computed. [2023-12-24 00:11:32,347 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 58) no Hoare annotation was computed. [2023-12-24 00:11:32,347 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-24 00:11:32,347 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-24 00:11:32,348 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-12-24 00:11:32,348 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-24 00:11:32,348 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,348 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,348 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-12-24 00:11:32,348 INFO L895 garLoopResultBuilder]: At program point L65(line 65) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,348 INFO L895 garLoopResultBuilder]: At program point L65-1(line 65) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,348 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-24 00:11:32,348 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 57) no Hoare annotation was computed. [2023-12-24 00:11:32,348 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-12-24 00:11:32,349 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 49) no Hoare annotation was computed. [2023-12-24 00:11:32,349 INFO L899 garLoopResultBuilder]: For program point L45-2(lines 45 49) no Hoare annotation was computed. [2023-12-24 00:11:32,349 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,349 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,349 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 59) no Hoare annotation was computed. [2023-12-24 00:11:32,349 INFO L899 garLoopResultBuilder]: For program point L66(line 66) no Hoare annotation was computed. [2023-12-24 00:11:32,349 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 00:11:32,349 INFO L895 garLoopResultBuilder]: At program point L99-3(lines 99 105) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,349 INFO L899 garLoopResultBuilder]: For program point L99-4(lines 99 105) no Hoare annotation was computed. [2023-12-24 00:11:32,349 INFO L895 garLoopResultBuilder]: At program point L62(line 62) the Hoare annotation is: (and (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,349 INFO L895 garLoopResultBuilder]: At program point L62-1(line 62) the Hoare annotation is: (and (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,349 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,349 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,350 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-24 00:11:32,350 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 00:11:32,350 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,350 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,350 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-12-24 00:11:32,350 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,350 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,350 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,350 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-24 00:11:32,350 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2023-12-24 00:11:32,350 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 43) no Hoare annotation was computed. [2023-12-24 00:11:32,350 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,351 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (and (bvsle ~var_1_3~0 (_ bv1073741823 32)) (bvsle ~var_1_5~0 (_ bv1073741823 32)) (bvsge ~var_1_5~0 (_ bv0 32)) (= (bvadd ~last_1_var_1_13~0 (_ bv128 32)) (_ bv0 32)) (= (bvadd (_ bv128 32) ~var_1_13~0) (_ bv0 32))) [2023-12-24 00:11:32,351 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-24 00:11:32,351 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-24 00:11:32,351 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-24 00:11:32,351 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-24 00:11:32,353 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-24 00:11:32,355 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 00:11:32,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 12:11:32 BoogieIcfgContainer [2023-12-24 00:11:32,362 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 00:11:32,363 INFO L158 Benchmark]: Toolchain (without parser) took 193959.86ms. Allocated memory was 320.9MB in the beginning and 1.0GB in the end (delta: 696.3MB). Free memory was 269.1MB in the beginning and 847.4MB in the end (delta: -578.3MB). Peak memory consumption was 600.4MB. Max. memory is 8.0GB. [2023-12-24 00:11:32,363 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 177.2MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 00:11:32,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.61ms. Allocated memory is still 320.9MB. Free memory was 269.1MB in the beginning and 256.0MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-24 00:11:32,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.51ms. Allocated memory is still 320.9MB. Free memory was 256.0MB in the beginning and 253.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 00:11:32,364 INFO L158 Benchmark]: Boogie Preprocessor took 43.31ms. Allocated memory is still 320.9MB. Free memory was 253.9MB in the beginning and 251.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 00:11:32,364 INFO L158 Benchmark]: RCFGBuilder took 350.35ms. Allocated memory is still 320.9MB. Free memory was 251.8MB in the beginning and 231.3MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-24 00:11:32,364 INFO L158 Benchmark]: TraceAbstraction took 193316.27ms. Allocated memory was 320.9MB in the beginning and 1.0GB in the end (delta: 696.3MB). Free memory was 230.3MB in the beginning and 847.4MB in the end (delta: -617.1MB). Peak memory consumption was 561.6MB. Max. memory is 8.0GB. [2023-12-24 00:11:32,365 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 177.2MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 216.61ms. Allocated memory is still 320.9MB. Free memory was 269.1MB in the beginning and 256.0MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.51ms. Allocated memory is still 320.9MB. Free memory was 256.0MB in the beginning and 253.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.31ms. Allocated memory is still 320.9MB. Free memory was 253.9MB in the beginning and 251.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 350.35ms. Allocated memory is still 320.9MB. Free memory was 251.8MB in the beginning and 231.3MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 193316.27ms. Allocated memory was 320.9MB in the beginning and 1.0GB in the end (delta: 696.3MB). Free memory was 230.3MB in the beginning and 847.4MB in the end (delta: -617.1MB). Peak memory consumption was 561.6MB. 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, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 193.3s, OverallIterations: 5, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 506 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 506 mSDsluCounter, 1090 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 850 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1769 IncrementalHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 240 mSDtfsCounter, 1769 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 827 GetRequests, 674 SyntacticMatches, 1 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2913 ImplicationChecksByTransitivity, 58.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=3, InterpolantAutomatonStates: 104, 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, 5 MinimizatonAttempts, 146 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 120 PreInvPairs, 156 NumberOfFragments, 334 HoareAnnotationTreeSize, 120 FormulaSimplifications, 7932 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FormulaSimplificationsInter, 2784 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 174.2s InterpolantComputationTime, 722 NumberOfCodeBlocks, 722 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 715 ConstructedInterpolants, 1 QuantifiedInterpolants, 9372 SizeOfPredicates, 91 NumberOfNonLiveVariables, 1206 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 3391/3808 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: 99]: Loop Invariant Derived loop invariant: (((((var_1_3 <= 1073741823) && (var_1_5 <= 1073741823)) && (var_1_5 >= 0)) && (((last_1_var_1_13 + 128) % 4294967296) == 0)) && (((128 + var_1_13) % 4294967296) == 0)) RESULT: Ultimate proved your program to be correct! [2023-12-24 00:11:32,418 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...