./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.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_floatingpointinfluence_has-floats_file-79.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 af3efeeaacc64cb7477cce5de730b96d7cb2077214786b6ce63a98322017b054 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:03:32,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:03:32,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 23:03:32,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:03:32,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:03:32,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:03:32,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:03:32,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:03:32,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:03:32,801 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:03:32,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:03:32,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:03:32,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:03:32,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:03:32,804 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:03:32,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:03:32,806 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:03:32,806 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:03:32,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:03:32,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:03:32,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:03:32,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:03:32,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:03:32,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:03:32,808 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:03:32,809 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:03:32,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:03:32,809 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:03:32,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:03:32,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:03:32,810 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:03:32,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:03:32,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:03:32,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:03:32,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:03:32,812 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:03:32,812 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 23:03:32,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:03:32,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:03:32,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:03:32,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:03:32,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:03:32,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af3efeeaacc64cb7477cce5de730b96d7cb2077214786b6ce63a98322017b054 [2024-11-08 23:03:33,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:03:33,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:03:33,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:03:33,111 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:03:33,112 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:03:33,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i [2024-11-08 23:03:34,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:03:34,715 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:03:34,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i [2024-11-08 23:03:34,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b202207/1ce478a2ae4e4ac3b1f60653407fb7a5/FLAGde515f648 [2024-11-08 23:03:35,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b202207/1ce478a2ae4e4ac3b1f60653407fb7a5 [2024-11-08 23:03:35,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:03:35,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:03:35,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:03:35,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:03:35,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:03:35,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e9ccad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35, skipping insertion in model container [2024-11-08 23:03:35,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,115 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:03:35,293 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_floatingpointinfluence_has-floats_file-79.i[917,930] [2024-11-08 23:03:35,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:03:35,346 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:03:35,361 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_floatingpointinfluence_has-floats_file-79.i[917,930] [2024-11-08 23:03:35,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:03:35,399 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:03:35,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35 WrapperNode [2024-11-08 23:03:35,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:03:35,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:03:35,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:03:35,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:03:35,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,439 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2024-11-08 23:03:35,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:03:35,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:03:35,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:03:35,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:03:35,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,468 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]. [2024-11-08 23:03:35,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:03:35,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:03:35,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:03:35,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:03:35,486 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (1/1) ... [2024-11-08 23:03:35,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:03:35,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:03:35,522 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) [2024-11-08 23:03:35,524 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 [2024-11-08 23:03:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:03:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:03:35,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:03:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 23:03:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:03:35,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:03:35,639 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:03:35,643 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:03:35,905 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 23:03:35,905 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:03:35,916 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:03:35,916 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:03:35,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:03:35 BoogieIcfgContainer [2024-11-08 23:03:35,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:03:35,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:03:35,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:03:35,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:03:35,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:03:35" (1/3) ... [2024-11-08 23:03:35,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e3f0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:03:35, skipping insertion in model container [2024-11-08 23:03:35,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:35" (2/3) ... [2024-11-08 23:03:35,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e3f0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:03:35, skipping insertion in model container [2024-11-08 23:03:35,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:03:35" (3/3) ... [2024-11-08 23:03:35,929 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-79.i [2024-11-08 23:03:35,945 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:03:35,946 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:03:36,017 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:03:36,026 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;@474c5830, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:03:36,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:03:36,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 23:03:36,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 23:03:36,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:03:36,044 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:03:36,045 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:03:36,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:03:36,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1003782793, now seen corresponding path program 1 times [2024-11-08 23:03:36,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:03:36,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445068101] [2024-11-08 23:03:36,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:03:36,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:03:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:03:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:03:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:03:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:03:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:03:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:03:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:03:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 23:03:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 23:03:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 23:03:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 23:03:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 23:03:36,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:03:36,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445068101] [2024-11-08 23:03:36,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445068101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:03:36,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:03:36,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 23:03:36,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534391612] [2024-11-08 23:03:36,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:03:36,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 23:03:36,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:03:36,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 23:03:36,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:03:36,386 INFO L87 Difference]: Start difference. First operand has 52 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 23:03:36,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:03:36,412 INFO L93 Difference]: Finished difference Result 97 states and 153 transitions. [2024-11-08 23:03:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 23:03:36,414 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2024-11-08 23:03:36,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:03:36,423 INFO L225 Difference]: With dead ends: 97 [2024-11-08 23:03:36,423 INFO L226 Difference]: Without dead ends: 48 [2024-11-08 23:03:36,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:03:36,430 INFO L432 NwaCegarLoop]: 67 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, 67 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 [2024-11-08 23:03:36,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:03:36,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-08 23:03:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-08 23:03:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 23:03:36,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2024-11-08 23:03:36,468 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 79 [2024-11-08 23:03:36,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:03:36,469 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-11-08 23:03:36,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 23:03:36,469 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2024-11-08 23:03:36,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 23:03:36,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:03:36,473 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:03:36,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 23:03:36,473 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:03:36,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:03:36,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1686293135, now seen corresponding path program 1 times [2024-11-08 23:03:36,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:03:36,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205350379] [2024-11-08 23:03:36,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:03:36,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:03:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:03:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:03:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:03:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:03:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:36,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:03:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:03:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:03:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 23:03:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 23:03:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 23:03:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 23:03:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 23:03:37,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:03:37,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205350379] [2024-11-08 23:03:37,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205350379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:03:37,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:03:37,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 23:03:37,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707263537] [2024-11-08 23:03:37,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:03:37,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 23:03:37,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:03:37,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 23:03:37,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 23:03:37,035 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 23:03:37,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:03:37,157 INFO L93 Difference]: Finished difference Result 136 states and 191 transitions. [2024-11-08 23:03:37,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 23:03:37,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 79 [2024-11-08 23:03:37,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:03:37,160 INFO L225 Difference]: With dead ends: 136 [2024-11-08 23:03:37,160 INFO L226 Difference]: Without dead ends: 91 [2024-11-08 23:03:37,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 23:03:37,162 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 58 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 23:03:37,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 511 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 23:03:37,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-08 23:03:37,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 50. [2024-11-08 23:03:37,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 23:03:37,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2024-11-08 23:03:37,180 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 79 [2024-11-08 23:03:37,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:03:37,182 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2024-11-08 23:03:37,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 23:03:37,182 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2024-11-08 23:03:37,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 23:03:37,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:03:37,187 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:03:37,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 23:03:37,187 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:03:37,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:03:37,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1681219236, now seen corresponding path program 1 times [2024-11-08 23:03:37,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:03:37,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42822159] [2024-11-08 23:03:37,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:03:37,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:03:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:03:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:03:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:03:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:03:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:03:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:03:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:03:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 23:03:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 23:03:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 23:03:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 23:03:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:37,531 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 23:03:37,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:03:37,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42822159] [2024-11-08 23:03:37,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42822159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:03:37,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:03:37,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 23:03:37,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77229079] [2024-11-08 23:03:37,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:03:37,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 23:03:37,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:03:37,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 23:03:37,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 23:03:37,536 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 23:03:37,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:03:37,705 INFO L93 Difference]: Finished difference Result 140 states and 194 transitions. [2024-11-08 23:03:37,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 23:03:37,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 80 [2024-11-08 23:03:37,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:03:37,711 INFO L225 Difference]: With dead ends: 140 [2024-11-08 23:03:37,713 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 23:03:37,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 23:03:37,715 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 73 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 23:03:37,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 283 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 23:03:37,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 23:03:37,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 48. [2024-11-08 23:03:37,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 23:03:37,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2024-11-08 23:03:37,732 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 80 [2024-11-08 23:03:37,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:03:37,733 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2024-11-08 23:03:37,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 23:03:37,733 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2024-11-08 23:03:37,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 23:03:37,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:03:37,735 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:03:37,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 23:03:37,736 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:03:37,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:03:37,737 INFO L85 PathProgramCache]: Analyzing trace with hash 776575882, now seen corresponding path program 1 times [2024-11-08 23:03:37,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:03:37,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615844429] [2024-11-08 23:03:37,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:03:37,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:03:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:03:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:03:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:03:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:03:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:03:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:03:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:03:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 23:03:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 23:03:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 23:03:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 23:03:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:38,189 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 23:03:38,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:03:38,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615844429] [2024-11-08 23:03:38,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615844429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:03:38,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:03:38,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 23:03:38,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288872376] [2024-11-08 23:03:38,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:03:38,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 23:03:38,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:03:38,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 23:03:38,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 23:03:38,192 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 23:03:38,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:03:38,319 INFO L93 Difference]: Finished difference Result 99 states and 132 transitions. [2024-11-08 23:03:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 23:03:38,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 81 [2024-11-08 23:03:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:03:38,321 INFO L225 Difference]: With dead ends: 99 [2024-11-08 23:03:38,321 INFO L226 Difference]: Without dead ends: 54 [2024-11-08 23:03:38,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 23:03:38,323 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 44 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 23:03:38,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 133 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 23:03:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-08 23:03:38,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2024-11-08 23:03:38,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 23:03:38,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2024-11-08 23:03:38,336 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 81 [2024-11-08 23:03:38,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:03:38,336 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-11-08 23:03:38,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 23:03:38,337 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2024-11-08 23:03:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 23:03:38,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:03:38,338 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:03:38,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 23:03:38,339 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:03:38,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:03:38,339 INFO L85 PathProgramCache]: Analyzing trace with hash 195526239, now seen corresponding path program 1 times [2024-11-08 23:03:38,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:03:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124613839] [2024-11-08 23:03:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:03:38,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:03:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:03:38,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2002544136] [2024-11-08 23:03:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:03:38,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 23:03:38,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:03:38,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 23:03:38,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 23:03:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:03:38,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:03:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:03:38,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 23:03:38,629 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 23:03:38,631 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 23:03:38,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 23:03:38,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 23:03:38,840 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 23:03:38,900 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 23:03:38,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 11:03:38 BoogieIcfgContainer [2024-11-08 23:03:38,904 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 23:03:38,905 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:03:38,905 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:03:38,905 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:03:38,905 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:03:35" (3/4) ... [2024-11-08 23:03:38,907 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:03:38,908 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:03:38,909 INFO L158 Benchmark]: Toolchain (without parser) took 3829.49ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 125.5MB in the beginning and 152.0MB in the end (delta: -26.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2024-11-08 23:03:38,909 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:03:38,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.80ms. Allocated memory is still 159.4MB. Free memory was 124.7MB in the beginning and 111.0MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:03:38,909 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.37ms. Allocated memory is still 159.4MB. Free memory was 111.0MB in the beginning and 108.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:03:38,910 INFO L158 Benchmark]: Boogie Preprocessor took 40.24ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 105.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:03:38,912 INFO L158 Benchmark]: RCFGBuilder took 434.38ms. Allocated memory is still 159.4MB. Free memory was 105.8MB in the beginning and 119.5MB in the end (delta: -13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 23:03:38,912 INFO L158 Benchmark]: TraceAbstraction took 2984.74ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 119.5MB in the beginning and 152.0MB in the end (delta: -32.6MB). Peak memory consumption was 99.5MB. Max. memory is 16.1GB. [2024-11-08 23:03:38,912 INFO L158 Benchmark]: Witness Printer took 3.44ms. Allocated memory is still 192.9MB. Free memory is still 152.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:03:38,914 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.80ms. Allocated memory is still 159.4MB. Free memory was 124.7MB in the beginning and 111.0MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.37ms. Allocated memory is still 159.4MB. Free memory was 111.0MB in the beginning and 108.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.24ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 105.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.38ms. Allocated memory is still 159.4MB. Free memory was 105.8MB in the beginning and 119.5MB in the end (delta: -13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2984.74ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 119.5MB in the beginning and 152.0MB in the end (delta: -32.6MB). Peak memory consumption was 99.5MB. Max. memory is 16.1GB. * Witness Printer took 3.44ms. Allocated memory is still 192.9MB. Free memory is still 152.0MB. 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 someBinaryDOUBLEComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 79. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] signed char var_1_3 = 0; [L24] signed char var_1_4 = 64; [L25] signed char var_1_5 = 64; [L26] signed long int var_1_6 = -64; [L27] double var_1_8 = 32.5; [L28] double var_1_9 = 1.6; [L29] unsigned short int var_1_10 = 32; [L30] float var_1_11 = 15.5; [L31] unsigned char var_1_12 = 0; [L32] unsigned char var_1_13 = 0; [L33] unsigned short int last_1_var_1_10 = 32; VAL [isInitial=0, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] CALL updateLastVariables() [L85] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L95] RET updateLastVariables() [L96] CALL updateVariables() [L65] var_1_3 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L66] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L67] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L67] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L68] var_1_4 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L69] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L70] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L70] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L71] var_1_5 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L73] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L73] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L74] var_1_8 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_9=8/5] [L75] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_9=8/5] [L76] var_1_9 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L77] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L78] var_1_11 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L79] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L80] var_1_13 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L81] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L82] CALL assume_abort_if_not(var_1_13 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L82] RET assume_abort_if_not(var_1_13 <= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L96] RET updateVariables() [L97] CALL step() [L37] signed long int stepLocal_0 = (((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10)); VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L38] EXPR last_1_var_1_10 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64] [L38] COND FALSE !(stepLocal_0 <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) [L45] var_1_6 = var_1_5 VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] [L47] signed long int stepLocal_1 = var_1_5 + var_1_6; VAL [isInitial=1, last_1_var_1_10=32, stepLocal_1=0, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] [L48] COND FALSE !(var_1_11 < var_1_9) VAL [isInitial=1, last_1_var_1_10=32, stepLocal_1=0, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] [L55] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_1=0, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] [L56] COND TRUE ! var_1_12 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_1=0, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] [L57] COND TRUE ! var_1_12 [L58] var_1_1 = (var_1_3 + -32) VAL [isInitial=1, last_1_var_1_10=32, stepLocal_1=0, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] [L97] RET step() [L98] CALL, EXPR property() [L88] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] [L88] EXPR last_1_var_1_10 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] [L88] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] [L88-L89] return ((((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5)))) && ((var_1_11 < var_1_9) ? (((var_1_5 + var_1_6) <= (~ (var_1_6 % -32))) ? (var_1_10 == ((unsigned short int) var_1_5)) : (var_1_10 == ((unsigned short int) var_1_5))) : 1)) && (var_1_12 == ((unsigned char) var_1_13)) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 994 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 690 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 304 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 88 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 483 NumberOfCodeBlocks, 483 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 415 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 880/880 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 [2024-11-08 23:03:38,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- 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_floatingpointinfluence_has-floats_file-79.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 af3efeeaacc64cb7477cce5de730b96d7cb2077214786b6ce63a98322017b054 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:03:41,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:03:41,198 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 23:03:41,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:03:41,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:03:41,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:03:41,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:03:41,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:03:41,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:03:41,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:03:41,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:03:41,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:03:41,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:03:41,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:03:41,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:03:41,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:03:41,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:03:41,245 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:03:41,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:03:41,246 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:03:41,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:03:41,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:03:41,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:03:41,247 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:03:41,247 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:03:41,248 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:03:41,248 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:03:41,248 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:03:41,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:03:41,249 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:03:41,250 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:03:41,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:03:41,250 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:03:41,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:03:41,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:03:41,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:03:41,251 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:03:41,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:03:41,252 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 23:03:41,252 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:03:41,253 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:03:41,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:03:41,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:03:41,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:03:41,254 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af3efeeaacc64cb7477cce5de730b96d7cb2077214786b6ce63a98322017b054 [2024-11-08 23:03:41,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:03:41,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:03:41,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:03:41,623 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:03:41,623 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:03:41,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i [2024-11-08 23:03:43,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:03:43,484 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:03:43,485 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i [2024-11-08 23:03:43,497 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c47a7a0e/a6b55a8f13a34e3f873ffcb738a7f84b/FLAG68626b671 [2024-11-08 23:03:43,516 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c47a7a0e/a6b55a8f13a34e3f873ffcb738a7f84b [2024-11-08 23:03:43,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:03:43,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:03:43,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:03:43,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:03:43,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:03:43,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a33a7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43, skipping insertion in model container [2024-11-08 23:03:43,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,555 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:03:43,733 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_floatingpointinfluence_has-floats_file-79.i[917,930] [2024-11-08 23:03:43,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:03:43,805 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:03:43,816 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_floatingpointinfluence_has-floats_file-79.i[917,930] [2024-11-08 23:03:43,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:03:43,866 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:03:43,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43 WrapperNode [2024-11-08 23:03:43,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:03:43,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:03:43,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:03:43,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:03:43,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,917 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2024-11-08 23:03:43,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:03:43,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:03:43,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:03:43,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:03:43,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,955 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]. [2024-11-08 23:03:43,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,957 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:43,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:03:43,994 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:03:43,994 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:03:43,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:03:43,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (1/1) ... [2024-11-08 23:03:44,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:03:44,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:03:44,028 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) [2024-11-08 23:03:44,034 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 [2024-11-08 23:03:44,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:03:44,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 23:03:44,067 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:03:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:03:44,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:03:44,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:03:44,138 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:03:44,141 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:03:44,579 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-08 23:03:44,579 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:03:44,594 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:03:44,595 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:03:44,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:03:44 BoogieIcfgContainer [2024-11-08 23:03:44,595 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:03:44,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:03:44,598 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:03:44,602 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:03:44,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:03:43" (1/3) ... [2024-11-08 23:03:44,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6479ce94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:03:44, skipping insertion in model container [2024-11-08 23:03:44,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:03:43" (2/3) ... [2024-11-08 23:03:44,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6479ce94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:03:44, skipping insertion in model container [2024-11-08 23:03:44,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:03:44" (3/3) ... [2024-11-08 23:03:44,606 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-79.i [2024-11-08 23:03:44,623 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:03:44,623 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:03:44,680 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:03:44,686 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;@3cb61f29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:03:44,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:03:44,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 23:03:44,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 23:03:44,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:03:44,700 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:03:44,701 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:03:44,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:03:44,706 INFO L85 PathProgramCache]: Analyzing trace with hash 57112054, now seen corresponding path program 1 times [2024-11-08 23:03:44,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 23:03:44,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110938520] [2024-11-08 23:03:44,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:03:44,719 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 [2024-11-08 23:03:44,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 23:03:44,722 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) [2024-11-08 23:03:44,723 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 [2024-11-08 23:03:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:44,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 23:03:44,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:03:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-08 23:03:44,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 23:03:44,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 23:03:44,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110938520] [2024-11-08 23:03:44,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110938520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:03:44,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:03:44,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 23:03:44,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077855475] [2024-11-08 23:03:44,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:03:44,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 23:03:44,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 23:03:44,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 23:03:44,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:03:44,997 INFO L87 Difference]: Start difference. First operand has 45 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 23:03:45,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:03:45,027 INFO L93 Difference]: Finished difference Result 83 states and 133 transitions. [2024-11-08 23:03:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 23:03:45,030 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2024-11-08 23:03:45,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:03:45,038 INFO L225 Difference]: With dead ends: 83 [2024-11-08 23:03:45,038 INFO L226 Difference]: Without dead ends: 41 [2024-11-08 23:03:45,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:03:45,048 INFO L432 NwaCegarLoop]: 57 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, 57 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 [2024-11-08 23:03:45,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:03:45,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-08 23:03:45,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-08 23:03:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 23:03:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2024-11-08 23:03:45,095 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 76 [2024-11-08 23:03:45,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:03:45,095 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2024-11-08 23:03:45,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 23:03:45,095 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2024-11-08 23:03:45,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 23:03:45,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:03:45,101 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:03:45,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 23:03:45,302 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 [2024-11-08 23:03:45,303 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:03:45,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:03:45,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1491049392, now seen corresponding path program 1 times [2024-11-08 23:03:45,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 23:03:45,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060952661] [2024-11-08 23:03:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:03:45,305 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 [2024-11-08 23:03:45,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 23:03:45,306 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) [2024-11-08 23:03:45,308 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 [2024-11-08 23:03:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:45,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 23:03:45,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:03:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 23:03:45,580 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 23:03:45,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 23:03:45,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060952661] [2024-11-08 23:03:45,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060952661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:03:45,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:03:45,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 23:03:45,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767552791] [2024-11-08 23:03:45,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:03:45,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 23:03:45,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 23:03:45,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 23:03:45,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 23:03:45,585 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 23:03:45,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:03:45,965 INFO L93 Difference]: Finished difference Result 85 states and 116 transitions. [2024-11-08 23:03:45,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 23:03:45,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2024-11-08 23:03:45,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:03:45,972 INFO L225 Difference]: With dead ends: 85 [2024-11-08 23:03:45,972 INFO L226 Difference]: Without dead ends: 47 [2024-11-08 23:03:45,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:03:45,974 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 66 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 23:03:45,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 93 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 23:03:45,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-08 23:03:45,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2024-11-08 23:03:45,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 23:03:45,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions. [2024-11-08 23:03:45,988 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 76 [2024-11-08 23:03:45,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:03:45,990 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions. [2024-11-08 23:03:45,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 23:03:45,991 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2024-11-08 23:03:45,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 23:03:45,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:03:45,993 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:03:45,999 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 [2024-11-08 23:03:46,194 WARN L453 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 [2024-11-08 23:03:46,195 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:03:46,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:03:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1257669406, now seen corresponding path program 1 times [2024-11-08 23:03:46,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 23:03:46,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613008067] [2024-11-08 23:03:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:03:46,196 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 [2024-11-08 23:03:46,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 23:03:46,199 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) [2024-11-08 23:03:46,200 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 [2024-11-08 23:03:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:03:46,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 23:03:46,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:04:33,018 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 23:04:33,019 INFO L311 TraceCheckSpWp]: Computing backward predicates...