./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 00:34:34,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:34:34,988 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 00:34:34,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:34:34,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 00:34:35,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:34:35,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 00:34:35,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 00:34:35,030 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 00:34:35,030 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 00:34:35,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:34:35,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 00:34:35,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:34:35,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:34:35,034 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 00:34:35,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:34:35,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:34:35,035 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:34:35,035 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:34:35,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:34:35,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:34:35,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:34:35,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:34:35,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:34:35,040 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:34:35,040 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:34:35,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:34:35,041 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:34:35,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:34:35,041 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 00:34:35,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 00:34:35,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 00:34:35,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 00:34:35,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:34:35,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:34:35,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:34:35,043 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 00:34:35,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:34:35,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 00:34:35,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 00:34:35,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 00:34:35,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 00:34:35,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f [2024-11-09 00:34:35,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:34:35,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:34:35,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:34:35,318 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:34:35,318 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:34:35,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i [2024-11-09 00:34:36,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:34:37,021 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:34:37,022 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i [2024-11-09 00:34:37,031 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81fbaf7a8/ccda5fe821eb497ba4555677ffb83aa4/FLAG0ab748dfe [2024-11-09 00:34:37,378 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81fbaf7a8/ccda5fe821eb497ba4555677ffb83aa4 [2024-11-09 00:34:37,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:34:37,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:34:37,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:34:37,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:34:37,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:34:37,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9044845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37, skipping insertion in model container [2024-11-09 00:34:37,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,408 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:34:37,600 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2024-11-09 00:34:37,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:34:37,647 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:34:37,658 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2024-11-09 00:34:37,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:34:37,703 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:34:37,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37 WrapperNode [2024-11-09 00:34:37,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:34:37,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:34:37,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:34:37,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:34:37,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,748 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2024-11-09 00:34:37,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:34:37,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:34:37,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:34:37,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:34:37,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,770 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,789 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]. [2024-11-09 00:34:37,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,790 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:34:37,815 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:34:37,815 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:34:37,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:34:37,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (1/1) ... [2024-11-09 00:34:37,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 00:34:37,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 00:34:37,850 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) [2024-11-09 00:34:37,852 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 [2024-11-09 00:34:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:34:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 00:34:37,894 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 00:34:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 00:34:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:34:37,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:34:37,959 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:34:37,961 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:34:38,201 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 00:34:38,205 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:34:38,250 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:34:38,251 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:34:38,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:34:38 BoogieIcfgContainer [2024-11-09 00:34:38,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:34:38,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 00:34:38,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 00:34:38,262 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 00:34:38,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:34:37" (1/3) ... [2024-11-09 00:34:38,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716168da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:34:38, skipping insertion in model container [2024-11-09 00:34:38,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:37" (2/3) ... [2024-11-09 00:34:38,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716168da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:34:38, skipping insertion in model container [2024-11-09 00:34:38,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:34:38" (3/3) ... [2024-11-09 00:34:38,266 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-70.i [2024-11-09 00:34:38,281 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 00:34:38,281 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 00:34:38,342 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 00:34:38,348 INFO L333 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, 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;@783c818d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 00:34:38,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 00:34:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 00:34:38,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 00:34:38,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 00:34:38,365 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 00:34:38,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 00:34:38,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:34:38,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1958802902, now seen corresponding path program 1 times [2024-11-09 00:34:38,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 00:34:38,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036848526] [2024-11-09 00:34:38,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 00:34:38,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:34:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:34:38,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 00:34:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:34:38,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 00:34:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:34:38,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 00:34:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:34:38,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-09 00:34:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:34:38,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 00:34:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:34:38,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 00:34:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:34:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 00:34:38,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 00:34:38,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036848526] [2024-11-09 00:34:38,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036848526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 00:34:38,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 00:34:38,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 00:34:38,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579260633] [2024-11-09 00:34:38,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 00:34:38,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 00:34:38,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 00:34:38,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 00:34:38,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 00:34:38,691 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 00:34:38,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 00:34:38,712 INFO L93 Difference]: Finished difference Result 57 states and 86 transitions. [2024-11-09 00:34:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 00:34:38,716 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-09 00:34:38,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 00:34:38,722 INFO L225 Difference]: With dead ends: 57 [2024-11-09 00:34:38,722 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 00:34:38,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 00:34:38,730 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 00:34:38,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 00:34:38,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 00:34:38,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-09 00:34:38,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 00:34:38,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2024-11-09 00:34:38,777 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 44 [2024-11-09 00:34:38,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 00:34:38,778 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2024-11-09 00:34:38,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 00:34:38,779 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-11-09 00:34:38,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 00:34:38,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 00:34:38,783 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 00:34:38,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 00:34:38,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 00:34:38,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:34:38,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1139575634, now seen corresponding path program 1 times [2024-11-09 00:34:38,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 00:34:38,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539071746] [2024-11-09 00:34:38,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 00:34:38,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:34:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:34:38,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:34:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:34:38,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 00:34:38,956 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 00:34:38,958 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 00:34:38,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 00:34:38,964 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 00:34:39,008 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 00:34:39,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:34:39 BoogieIcfgContainer [2024-11-09 00:34:39,015 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 00:34:39,016 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:34:39,016 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:34:39,016 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:34:39,017 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:34:38" (3/4) ... [2024-11-09 00:34:39,019 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:34:39,020 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:34:39,021 INFO L158 Benchmark]: Toolchain (without parser) took 1639.84ms. Allocated memory is still 159.4MB. Free memory was 90.1MB in the beginning and 96.0MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:34:39,021 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 79.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:34:39,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.36ms. Allocated memory is still 159.4MB. Free memory was 90.0MB in the beginning and 77.1MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:34:39,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.72ms. Allocated memory is still 159.4MB. Free memory was 77.1MB in the beginning and 75.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:34:39,025 INFO L158 Benchmark]: Boogie Preprocessor took 63.69ms. Allocated memory is still 159.4MB. Free memory was 75.3MB in the beginning and 73.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:34:39,026 INFO L158 Benchmark]: RCFGBuilder took 437.54ms. Allocated memory is still 159.4MB. Free memory was 73.4MB in the beginning and 130.3MB in the end (delta: -57.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 00:34:39,026 INFO L158 Benchmark]: TraceAbstraction took 756.14ms. Allocated memory is still 159.4MB. Free memory was 130.3MB in the beginning and 96.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 00:34:39,026 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 159.4MB. Free memory was 96.8MB in the beginning and 96.0MB in the end (delta: 752.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:34:39,028 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 79.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.36ms. Allocated memory is still 159.4MB. Free memory was 90.0MB in the beginning and 77.1MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.72ms. Allocated memory is still 159.4MB. Free memory was 77.1MB in the beginning and 75.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.69ms. Allocated memory is still 159.4MB. Free memory was 75.3MB in the beginning and 73.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 437.54ms. Allocated memory is still 159.4MB. Free memory was 73.4MB in the beginning and 130.3MB in the end (delta: -57.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 756.14ms. Allocated memory is still 159.4MB. Free memory was 130.3MB in the beginning and 96.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 159.4MB. Free memory was 96.8MB in the beginning and 96.0MB in the end (delta: 752.2kB). There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 9.5; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 0; [L25] float var_1_4 = 31.2; [L26] float var_1_5 = 15.639; VAL [isInitial=0, var_1_1=19/2, var_1_2=1, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L62] isInitial = 1 [L63] FCALL initially() [L64] COND TRUE 1 [L65] FCALL updateLastVariables() [L66] CALL updateVariables() [L44] var_1_2 = __VERIFIER_nondet_uchar() [L45] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L45] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=19/2, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L46] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L46] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L47] var_1_3 = __VERIFIER_nondet_uchar() [L48] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_4=156/5, var_1_5=15639/1000] [L48] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_4=156/5, var_1_5=15639/1000] [L49] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L49] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L50] var_1_4 = __VERIFIER_nondet_float() [L51] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=1, var_1_5=15639/1000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=1, var_1_5=15639/1000] [L51] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=1, var_1_5=15639/1000] [L52] var_1_5 = __VERIFIER_nondet_float() [L53] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=1] [L53] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=19/2, var_1_2=-255, var_1_3=1] [L66] RET updateVariables() [L67] CALL step() [L30] unsigned char stepLocal_0 = var_1_2; VAL [isInitial=1, stepLocal_0=-255, var_1_1=19/2, var_1_2=-255, var_1_3=1] [L31] COND TRUE stepLocal_0 && var_1_3 [L32] var_1_1 = (var_1_4 - var_1_5) VAL [isInitial=1, var_1_2=-255, var_1_3=1] [L67] RET step() [L68] CALL, EXPR property() [L58-L59] return (var_1_2 && var_1_3) ? (var_1_1 == ((float) (var_1_4 - var_1_5))) : ((var_1_4 >= var_1_5) ? (var_1_3 ? (var_1_1 == ((float) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))) : (var_1_1 == ((float) var_1_4))) : 1) ; VAL [\result=0, isInitial=1, var_1_2=-255, var_1_3=1] [L68] RET, EXPR property() [L68] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_2=-255, var_1_3=1] [L19] reach_error() VAL [isInitial=1, var_1_2=-255, var_1_3=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 36 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 60/60 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: unable to determine feasibility of some traces [2024-11-09 00:34:39,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 00:34:41,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:34:41,418 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-09 00:34:41,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:34:41,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 00:34:41,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:34:41,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 00:34:41,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 00:34:41,467 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 00:34:41,468 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 00:34:41,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:34:41,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 00:34:41,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:34:41,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:34:41,472 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 00:34:41,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:34:41,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:34:41,473 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:34:41,473 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:34:41,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:34:41,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:34:41,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:34:41,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:34:41,478 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:34:41,478 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:34:41,478 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:34:41,479 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:34:41,479 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:34:41,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:34:41,479 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:34:41,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:34:41,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 00:34:41,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 00:34:41,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 00:34:41,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 00:34:41,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:34:41,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:34:41,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:34:41,484 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 00:34:41,484 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:34:41,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 00:34:41,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 00:34:41,485 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 00:34:41,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 00:34:41,486 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f [2024-11-09 00:34:41,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:34:41,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:34:41,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:34:41,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:34:41,862 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:34:41,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i [2024-11-09 00:34:43,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:34:43,561 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:34:43,562 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i [2024-11-09 00:34:43,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed9c5fc9/74af466696a04fa6959dc220eebc549c/FLAG131a2655a [2024-11-09 00:34:43,590 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed9c5fc9/74af466696a04fa6959dc220eebc549c [2024-11-09 00:34:43,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:34:43,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:34:43,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:34:43,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:34:43,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:34:43,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:43,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52186a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43, skipping insertion in model container [2024-11-09 00:34:43,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:43,627 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:34:43,801 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2024-11-09 00:34:43,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:34:43,858 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:34:43,869 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2024-11-09 00:34:43,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:34:43,905 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:34:43,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43 WrapperNode [2024-11-09 00:34:43,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:34:43,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:34:43,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:34:43,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:34:43,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:43,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:43,945 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2024-11-09 00:34:43,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:34:43,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:34:43,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:34:43,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:34:43,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:43,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:43,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:43,982 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]. [2024-11-09 00:34:43,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:43,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:43,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:43,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:44,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:44,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:44,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:34:44,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:34:44,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:34:44,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:34:44,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (1/1) ... [2024-11-09 00:34:44,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 00:34:44,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 00:34:44,044 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) [2024-11-09 00:34:44,047 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 [2024-11-09 00:34:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:34:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 00:34:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 00:34:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 00:34:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:34:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:34:44,166 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:34:44,168 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:34:44,429 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 00:34:44,430 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:34:44,441 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:34:44,444 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:34:44,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:34:44 BoogieIcfgContainer [2024-11-09 00:34:44,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:34:44,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 00:34:44,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 00:34:44,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 00:34:44,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:34:43" (1/3) ... [2024-11-09 00:34:44,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703b9c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:34:44, skipping insertion in model container [2024-11-09 00:34:44,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:34:43" (2/3) ... [2024-11-09 00:34:44,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703b9c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:34:44, skipping insertion in model container [2024-11-09 00:34:44,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:34:44" (3/3) ... [2024-11-09 00:34:44,455 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-70.i [2024-11-09 00:34:44,472 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 00:34:44,472 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 00:34:44,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 00:34:44,548 INFO L333 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, 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;@48047729, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 00:34:44,549 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 00:34:44,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 00:34:44,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 00:34:44,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 00:34:44,562 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 00:34:44,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 00:34:44,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:34:44,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1958802902, now seen corresponding path program 1 times [2024-11-09 00:34:44,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 00:34:44,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233536635] [2024-11-09 00:34:44,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 00:34:44,589 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 [2024-11-09 00:34:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 00:34:44,592 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) [2024-11-09 00:34:44,593 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 [2024-11-09 00:34:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:34:44,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 00:34:44,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:34:44,831 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 00:34:44,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 00:34:44,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 00:34:44,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233536635] [2024-11-09 00:34:44,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233536635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 00:34:44,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 00:34:44,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 00:34:44,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196876737] [2024-11-09 00:34:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 00:34:44,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 00:34:44,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 00:34:44,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 00:34:44,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 00:34:44,868 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 00:34:44,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 00:34:44,888 INFO L93 Difference]: Finished difference Result 57 states and 86 transitions. [2024-11-09 00:34:44,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 00:34:44,891 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-09 00:34:44,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 00:34:44,897 INFO L225 Difference]: With dead ends: 57 [2024-11-09 00:34:44,897 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 00:34:44,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 00:34:44,903 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 00:34:44,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 00:34:44,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 00:34:44,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-09 00:34:44,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 00:34:44,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2024-11-09 00:34:44,968 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 44 [2024-11-09 00:34:44,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 00:34:44,969 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2024-11-09 00:34:44,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 00:34:44,970 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-11-09 00:34:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 00:34:44,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 00:34:44,974 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 00:34:44,984 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 [2024-11-09 00:34:45,177 WARN L453 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 [2024-11-09 00:34:45,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 00:34:45,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:34:45,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1139575634, now seen corresponding path program 1 times [2024-11-09 00:34:45,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 00:34:45,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363362686] [2024-11-09 00:34:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 00:34:45,180 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 [2024-11-09 00:34:45,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 00:34:45,182 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) [2024-11-09 00:34:45,183 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 [2024-11-09 00:34:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:34:45,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 00:34:45,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:34:55,850 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 00:34:55,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 00:35:10,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 00:35:10,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363362686] [2024-11-09 00:35:10,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363362686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 00:35:10,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1041999552] [2024-11-09 00:35:10,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 00:35:10,768 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:35:10,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-09 00:35:10,770 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) [2024-11-09 00:35:10,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 00:35:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:35:11,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 00:35:11,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:35:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 00:35:23,138 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 00:35:30,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1041999552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 00:35:30,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 00:35:30,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 21 [2024-11-09 00:35:30,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059085181] [2024-11-09 00:35:30,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 00:35:30,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 00:35:30,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 00:35:30,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 00:35:30,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2024-11-09 00:35:30,561 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 22 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 19 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-09 00:35:34,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 00:35:34,971 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2024-11-09 00:35:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 00:35:34,974 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 19 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 44 [2024-11-09 00:35:34,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 00:35:34,975 INFO L225 Difference]: With dead ends: 52 [2024-11-09 00:35:34,976 INFO L226 Difference]: Without dead ends: 50 [2024-11-09 00:35:34,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=256, Invalid=1004, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 00:35:34,977 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 66 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 00:35:34,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 114 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 00:35:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-09 00:35:34,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2024-11-09 00:35:34,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 00:35:34,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2024-11-09 00:35:34,990 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 44 [2024-11-09 00:35:34,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 00:35:34,991 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2024-11-09 00:35:34,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 19 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-09 00:35:34,991 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2024-11-09 00:35:34,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 00:35:34,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 00:35:34,992 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 00:35:35,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-09 00:35:35,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 00:35:35,394 WARN L453 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 [2024-11-09 00:35:35,395 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 00:35:35,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:35:35,396 INFO L85 PathProgramCache]: Analyzing trace with hash -911757502, now seen corresponding path program 1 times [2024-11-09 00:35:35,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 00:35:35,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162653013] [2024-11-09 00:35:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 00:35:35,397 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 [2024-11-09 00:35:35,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 00:35:35,400 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) [2024-11-09 00:35:35,401 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 [2024-11-09 00:35:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:35:35,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 00:35:35,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:35:45,367 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 23 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 00:35:45,367 INFO L311 TraceCheckSpWp]: Computing backward predicates...