/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_50-1loop_file-15.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:08:28,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:08:29,064 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 14:08:29,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:08:29,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:08:29,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:08:29,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:08:29,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:08:29,086 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:08:29,087 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:08:29,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:08:29,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:08:29,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:08:29,088 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:08:29,089 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:08:29,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:08:29,089 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:08:29,090 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:08:29,090 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:08:29,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:08:29,090 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:08:29,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:08:29,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:08:29,093 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:08:29,093 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:08:29,094 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:08:29,094 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:08:29,094 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:08:29,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:08:29,095 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:08:29,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:08:29,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:08:29,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:08:29,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:08:29,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:08:29,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:08:29,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:08:29,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:08:29,097 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:08:29,097 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:08:29,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:08:29,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:08:29,098 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:08:29,098 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:08:29,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:08:29,098 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:08:29,098 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:08:29,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:08:29,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:08:29,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:08:29,345 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:08:29,345 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:08:29,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-15.i [2023-12-16 14:08:30,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:08:30,726 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:08:30,726 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-15.i [2023-12-16 14:08:30,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e8b85e1/38eea2199e71411a8b71600e28d8fbc5/FLAGaaa87aa17 [2023-12-16 14:08:30,748 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e8b85e1/38eea2199e71411a8b71600e28d8fbc5 [2023-12-16 14:08:30,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:08:30,753 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:08:30,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:08:30,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:08:30,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:08:30,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:08:30" (1/1) ... [2023-12-16 14:08:30,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1454d609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:30, skipping insertion in model container [2023-12-16 14:08:30,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:08:30" (1/1) ... [2023-12-16 14:08:30,792 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:08:30,927 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_50-1loop_file-15.i[915,928] [2023-12-16 14:08:30,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:08:30,992 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:08:31,002 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_50-1loop_file-15.i[915,928] [2023-12-16 14:08:31,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:08:31,046 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:08:31,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31 WrapperNode [2023-12-16 14:08:31,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:08:31,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:08:31,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:08:31,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:08:31,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,097 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153 [2023-12-16 14:08:31,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:08:31,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:08:31,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:08:31,098 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:08:31,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,123 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 14:08:31,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:08:31,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:08:31,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:08:31,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:08:31,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (1/1) ... [2023-12-16 14:08:31,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:08:31,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:08:31,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 14:08:31,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 14:08:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:08:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:08:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:08:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:08:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:08:31,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:08:31,340 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:08:31,342 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:08:33,884 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:08:33,934 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:08:33,935 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:08:33,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:08:33 BoogieIcfgContainer [2023-12-16 14:08:33,935 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:08:33,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:08:33,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:08:33,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:08:33,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:08:30" (1/3) ... [2023-12-16 14:08:33,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4c8296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:08:33, skipping insertion in model container [2023-12-16 14:08:33,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:08:31" (2/3) ... [2023-12-16 14:08:33,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4c8296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:08:33, skipping insertion in model container [2023-12-16 14:08:33,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:08:33" (3/3) ... [2023-12-16 14:08:33,953 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-15.i [2023-12-16 14:08:33,982 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:08:33,982 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:08:34,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:08:34,024 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;@17412b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:08:34,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:08:34,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 39 states have internal predecessors, (54), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 14:08:34,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 14:08:34,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:08:34,050 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:08:34,051 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:08:34,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:08:34,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1831857295, now seen corresponding path program 1 times [2023-12-16 14:08:34,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:08:34,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864656365] [2023-12-16 14:08:34,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:08:34,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:08:34,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:08:34,072 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:08:34,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 14:08:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:08:34,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:08:34,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:08:34,511 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2023-12-16 14:08:34,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:08:34,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:08:34,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864656365] [2023-12-16 14:08:34,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864656365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:08:34,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:08:34,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:08:34,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798599916] [2023-12-16 14:08:34,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:08:34,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:08:34,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:08:34,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:08:34,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:08:34,546 INFO L87 Difference]: Start difference. First operand has 61 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 39 states have internal predecessors, (54), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 14:08:35,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:08:35,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:08:35,677 INFO L93 Difference]: Finished difference Result 121 states and 207 transitions. [2023-12-16 14:08:35,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:08:35,680 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 128 [2023-12-16 14:08:35,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:08:35,686 INFO L225 Difference]: With dead ends: 121 [2023-12-16 14:08:35,686 INFO L226 Difference]: Without dead ends: 59 [2023-12-16 14:08:35,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:08:35,696 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 14:08:35,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 14:08:35,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-16 14:08:35,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-16 14:08:35,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 14:08:35,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 89 transitions. [2023-12-16 14:08:35,731 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 89 transitions. Word has length 128 [2023-12-16 14:08:35,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:08:35,732 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 89 transitions. [2023-12-16 14:08:35,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 14:08:35,732 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions. [2023-12-16 14:08:35,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 14:08:35,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:08:35,734 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:08:35,744 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 [2023-12-16 14:08:35,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:08:35,936 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:08:35,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:08:35,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1424716739, now seen corresponding path program 1 times [2023-12-16 14:08:35,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:08:35,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134293687] [2023-12-16 14:08:35,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:08:35,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:08:35,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:08:35,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:08:35,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 14:08:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:08:36,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 14:08:36,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:08:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 14:08:37,351 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:08:37,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:08:37,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134293687] [2023-12-16 14:08:37,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134293687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:08:37,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:08:37,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 14:08:37,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119020253] [2023-12-16 14:08:37,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:08:37,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 14:08:37,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:08:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 14:08:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 14:08:37,357 INFO L87 Difference]: Start difference. First operand 59 states and 89 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 14:08:38,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:08:40,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:08:40,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:08:40,587 INFO L93 Difference]: Finished difference Result 176 states and 266 transitions. [2023-12-16 14:08:40,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 14:08:40,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 128 [2023-12-16 14:08:40,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:08:40,590 INFO L225 Difference]: With dead ends: 176 [2023-12-16 14:08:40,590 INFO L226 Difference]: Without dead ends: 118 [2023-12-16 14:08:40,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 14:08:40,592 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 50 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 14:08:40,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 242 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 14:08:40,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-16 14:08:40,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 98. [2023-12-16 14:08:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 55 states have internal predecessors, (67), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 14:08:40,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 147 transitions. [2023-12-16 14:08:40,625 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 147 transitions. Word has length 128 [2023-12-16 14:08:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:08:40,625 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 147 transitions. [2023-12-16 14:08:40,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 14:08:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 147 transitions. [2023-12-16 14:08:40,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 14:08:40,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:08:40,628 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:08:40,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 14:08:40,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:08:40,841 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:08:40,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:08:40,842 INFO L85 PathProgramCache]: Analyzing trace with hash 850163593, now seen corresponding path program 1 times [2023-12-16 14:08:40,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:08:40,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283209661] [2023-12-16 14:08:40,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:08:40,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:08:40,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:08:40,844 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:08:40,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 14:08:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:08:41,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 14:08:41,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:08:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 14:08:43,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:08:43,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:08:43,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283209661] [2023-12-16 14:08:43,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283209661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:08:43,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:08:43,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 14:08:43,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397251446] [2023-12-16 14:08:43,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:08:43,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 14:08:43,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:08:43,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 14:08:43,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 14:08:43,126 INFO L87 Difference]: Start difference. First operand 98 states and 147 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 14:08:48,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 14:08:56,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 14:08:58,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 14:08:58,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:08:58,092 INFO L93 Difference]: Finished difference Result 214 states and 323 transitions. [2023-12-16 14:08:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 14:08:58,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 129 [2023-12-16 14:08:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:08:58,113 INFO L225 Difference]: With dead ends: 214 [2023-12-16 14:08:58,113 INFO L226 Difference]: Without dead ends: 156 [2023-12-16 14:08:58,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 14:08:58,114 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 76 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2023-12-16 14:08:58,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 215 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2023-12-16 14:08:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-12-16 14:08:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 100. [2023-12-16 14:08:58,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 57 states have internal predecessors, (69), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 14:08:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 149 transitions. [2023-12-16 14:08:58,148 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 149 transitions. Word has length 129 [2023-12-16 14:08:58,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:08:58,149 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 149 transitions. [2023-12-16 14:08:58,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 14:08:58,149 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 149 transitions. [2023-12-16 14:08:58,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 14:08:58,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:08:58,155 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:08:58,168 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 (4)] Ended with exit code 0 [2023-12-16 14:08:58,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:08:58,356 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:08:58,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:08:58,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1551228171, now seen corresponding path program 1 times [2023-12-16 14:08:58,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:08:58,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299760153] [2023-12-16 14:08:58,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:08:58,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:08:58,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:08:58,359 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:08:58,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 14:08:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:08:58,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 14:08:58,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:08:59,386 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 336 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-12-16 14:08:59,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:08:59,857 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 18 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 14:08:59,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:08:59,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299760153] [2023-12-16 14:08:59,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299760153] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:08:59,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:08:59,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-16 14:08:59,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017462911] [2023-12-16 14:08:59,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:08:59,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 14:08:59,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:08:59,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 14:08:59,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-16 14:08:59,860 INFO L87 Difference]: Start difference. First operand 100 states and 149 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (40), 3 states have call predecessors, (40), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2023-12-16 14:09:01,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:09:05,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:09:06,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:09:06,004 INFO L93 Difference]: Finished difference Result 234 states and 339 transitions. [2023-12-16 14:09:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 14:09:06,021 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (40), 3 states have call predecessors, (40), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 129 [2023-12-16 14:09:06,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:09:06,025 INFO L225 Difference]: With dead ends: 234 [2023-12-16 14:09:06,025 INFO L226 Difference]: Without dead ends: 174 [2023-12-16 14:09:06,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=198, Invalid=402, Unknown=0, NotChecked=0, Total=600 [2023-12-16 14:09:06,034 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 268 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-16 14:09:06,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 232 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-16 14:09:06,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-16 14:09:06,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 106. [2023-12-16 14:09:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 61 states have (on average 1.180327868852459) internal successors, (72), 61 states have internal predecessors, (72), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 14:09:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 152 transitions. [2023-12-16 14:09:06,062 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 152 transitions. Word has length 129 [2023-12-16 14:09:06,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:09:06,063 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 152 transitions. [2023-12-16 14:09:06,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (40), 3 states have call predecessors, (40), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2023-12-16 14:09:06,063 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 152 transitions. [2023-12-16 14:09:06,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 14:09:06,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:09:06,064 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:09:06,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 14:09:06,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:09:06,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:09:06,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:09:06,276 INFO L85 PathProgramCache]: Analyzing trace with hash 62737019, now seen corresponding path program 1 times [2023-12-16 14:09:06,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:09:06,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788405230] [2023-12-16 14:09:06,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:09:06,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:09:06,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:09:06,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:09:06,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 14:09:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:09:06,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 14:09:06,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:09:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-12-16 14:09:06,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:09:07,120 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 14:09:07,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:09:07,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788405230] [2023-12-16 14:09:07,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788405230] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:09:07,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:09:07,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-16 14:09:07,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900113594] [2023-12-16 14:09:07,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:09:07,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 14:09:07,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:09:07,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 14:09:07,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 14:09:07,123 INFO L87 Difference]: Start difference. First operand 106 states and 152 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 14:09:09,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:09:09,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:09:09,914 INFO L93 Difference]: Finished difference Result 181 states and 250 transitions. [2023-12-16 14:09:09,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 14:09:09,915 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 130 [2023-12-16 14:09:09,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:09:09,916 INFO L225 Difference]: With dead ends: 181 [2023-12-16 14:09:09,916 INFO L226 Difference]: Without dead ends: 119 [2023-12-16 14:09:09,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 251 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-16 14:09:09,917 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 114 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 14:09:09,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 119 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 14:09:09,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-16 14:09:09,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 111. [2023-12-16 14:09:09,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 64 states have (on average 1.078125) internal successors, (69), 64 states have internal predecessors, (69), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 14:09:09,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 149 transitions. [2023-12-16 14:09:09,941 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 149 transitions. Word has length 130 [2023-12-16 14:09:09,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:09:09,941 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 149 transitions. [2023-12-16 14:09:09,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 14:09:09,942 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 149 transitions. [2023-12-16 14:09:09,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 14:09:09,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:09:09,943 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:09:09,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 14:09:10,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:09:10,154 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:09:10,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:09:10,155 INFO L85 PathProgramCache]: Analyzing trace with hash -66551237, now seen corresponding path program 1 times [2023-12-16 14:09:10,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:09:10,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393737191] [2023-12-16 14:09:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:09:10,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:09:10,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:09:10,157 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) [2023-12-16 14:09:10,158 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 [2023-12-16 14:09:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:09:10,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 14:09:10,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:09:10,699 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-12-16 14:09:10,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:09:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 14:09:10,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:09:10,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393737191] [2023-12-16 14:09:10,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393737191] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:09:10,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:09:10,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-16 14:09:10,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170974664] [2023-12-16 14:09:10,949 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:09:10,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 14:09:10,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:09:10,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 14:09:10,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 14:09:10,952 INFO L87 Difference]: Start difference. First operand 111 states and 149 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 14:09:12,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 14:09:13,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:09:13,026 INFO L93 Difference]: Finished difference Result 182 states and 241 transitions. [2023-12-16 14:09:13,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 14:09:13,026 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 130 [2023-12-16 14:09:13,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:09:13,028 INFO L225 Difference]: With dead ends: 182 [2023-12-16 14:09:13,028 INFO L226 Difference]: Without dead ends: 119 [2023-12-16 14:09:13,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 251 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-16 14:09:13,030 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 133 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 14:09:13,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 120 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 14:09:13,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-16 14:09:13,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 111. [2023-12-16 14:09:13,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 64 states have (on average 1.0625) internal successors, (68), 64 states have internal predecessors, (68), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 14:09:13,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 148 transitions. [2023-12-16 14:09:13,052 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 148 transitions. Word has length 130 [2023-12-16 14:09:13,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:09:13,052 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 148 transitions. [2023-12-16 14:09:13,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 14:09:13,053 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 148 transitions. [2023-12-16 14:09:13,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 14:09:13,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:09:13,054 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:09:13,067 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 [2023-12-16 14:09:13,267 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 [2023-12-16 14:09:13,267 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:09:13,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:09:13,268 INFO L85 PathProgramCache]: Analyzing trace with hash -9292935, now seen corresponding path program 1 times [2023-12-16 14:09:13,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:09:13,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610458657] [2023-12-16 14:09:13,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:09:13,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:09:13,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:09:13,270 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) [2023-12-16 14:09:13,270 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 [2023-12-16 14:09:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:09:13,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 14:09:13,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 14:09:44,827 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:09:44,838 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:09:45,843 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 (8)] Forceful destruction successful, exit code 0 [2023-12-16 14:09:46,043 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 14:09:46,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 14:09:46,057 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 14:09:46,057 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 131 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. [2023-12-16 14:09:46,061 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:09:46,063 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 14:09:46,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:09:46 BoogieIcfgContainer [2023-12-16 14:09:46,064 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 14:09:46,065 INFO L158 Benchmark]: Toolchain (without parser) took 75312.14ms. Allocated memory was 250.6MB in the beginning and 300.9MB in the end (delta: 50.3MB). Free memory was 196.5MB in the beginning and 164.6MB in the end (delta: 32.0MB). Peak memory consumption was 83.4MB. Max. memory is 8.0GB. [2023-12-16 14:09:46,065 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 137.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 14:09:46,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.32ms. Allocated memory is still 250.6MB. Free memory was 196.5MB in the beginning and 181.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 14:09:46,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.44ms. Allocated memory is still 250.6MB. Free memory was 181.9MB in the beginning and 179.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 14:09:46,066 INFO L158 Benchmark]: Boogie Preprocessor took 43.66ms. Allocated memory is still 250.6MB. Free memory was 179.3MB in the beginning and 176.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 14:09:46,066 INFO L158 Benchmark]: RCFGBuilder took 2792.92ms. Allocated memory is still 250.6MB. Free memory was 176.1MB in the beginning and 153.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 14:09:46,066 INFO L158 Benchmark]: TraceAbstraction took 72118.12ms. Allocated memory was 250.6MB in the beginning and 300.9MB in the end (delta: 50.3MB). Free memory was 152.5MB in the beginning and 164.6MB in the end (delta: -12.1MB). Peak memory consumption was 39.3MB. Max. memory is 8.0GB. [2023-12-16 14:09:46,067 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 137.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 291.32ms. Allocated memory is still 250.6MB. Free memory was 196.5MB in the beginning and 181.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.44ms. Allocated memory is still 250.6MB. Free memory was 181.9MB in the beginning and 179.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.66ms. Allocated memory is still 250.6MB. Free memory was 179.3MB in the beginning and 176.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 2792.92ms. Allocated memory is still 250.6MB. Free memory was 176.1MB in the beginning and 153.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 72118.12ms. Allocated memory was 250.6MB in the beginning and 300.9MB in the end (delta: 50.3MB). Free memory was 152.5MB in the beginning and 164.6MB in the end (delta: -12.1MB). Peak memory consumption was 39.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 131 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.1s, OverallIterations: 7, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 645 SdHoareTripleChecker+Valid, 28.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 641 mSDsluCounter, 1014 SdHoareTripleChecker+Invalid, 27.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 526 mSDsCounter, 569 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 651 IncrementalHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 569 mSolverCounterUnsat, 488 mSDtfsCounter, 651 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1190 GetRequests, 1129 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=5, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 160 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 774 NumberOfCodeBlocks, 774 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1154 ConstructedInterpolants, 2 QuantifiedInterpolants, 3752 SizeOfPredicates, 23 NumberOfNonLiveVariables, 1309 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 6438/6840 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown