./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_loopvsstraightlinecode_25-while_file-70.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ccbd3d527b155627328a35d6caa52dc0505af33db01f6600e6e4ac6df0debf6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 16:35:44,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 16:35:44,095 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 16:35:44,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 16:35:44,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 16:35:44,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 16:35:44,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 16:35:44,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 16:35:44,133 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 16:35:44,134 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 16:35:44,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 16:35:44,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 16:35:44,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 16:35:44,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 16:35:44,138 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 16:35:44,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 16:35:44,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 16:35:44,139 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 16:35:44,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 16:35:44,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 16:35:44,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 16:35:44,141 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 16:35:44,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 16:35:44,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 16:35:44,145 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 16:35:44,145 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 16:35:44,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 16:35:44,145 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 16:35:44,145 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 16:35:44,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 16:35:44,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 16:35:44,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 16:35:44,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:35:44,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 16:35:44,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 16:35:44,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 16:35:44,147 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 16:35:44,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 16:35:44,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 16:35:44,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 16:35:44,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 16:35:44,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 16:35:44,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ccbd3d527b155627328a35d6caa52dc0505af33db01f6600e6e4ac6df0debf6 [2024-11-16 16:35:44,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 16:35:44,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 16:35:44,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 16:35:44,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 16:35:44,420 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 16:35:44,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-70.i [2024-11-16 16:35:45,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 16:35:46,169 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 16:35:46,169 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-70.i [2024-11-16 16:35:46,178 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/777142547/661b4185ad6e4aceaa6fb97b234ba055/FLAG0d8c9ccba [2024-11-16 16:35:46,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/777142547/661b4185ad6e4aceaa6fb97b234ba055 [2024-11-16 16:35:46,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 16:35:46,193 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 16:35:46,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 16:35:46,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 16:35:46,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 16:35:46,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6015f64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46, skipping insertion in model container [2024-11-16 16:35:46,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,222 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 16:35:46,397 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_loopvsstraightlinecode_25-while_file-70.i[915,928] [2024-11-16 16:35:46,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:35:46,465 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 16:35:46,477 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_loopvsstraightlinecode_25-while_file-70.i[915,928] [2024-11-16 16:35:46,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:35:46,520 INFO L204 MainTranslator]: Completed translation [2024-11-16 16:35:46,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46 WrapperNode [2024-11-16 16:35:46,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 16:35:46,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 16:35:46,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 16:35:46,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 16:35:46,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,577 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2024-11-16 16:35:46,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 16:35:46,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 16:35:46,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 16:35:46,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 16:35:46,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,599 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,634 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]. [2024-11-16 16:35:46,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,646 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,671 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 16:35:46,672 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 16:35:46,672 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 16:35:46,672 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 16:35:46,673 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (1/1) ... [2024-11-16 16:35:46,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:35:46,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:35:46,709 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) [2024-11-16 16:35:46,716 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 [2024-11-16 16:35:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 16:35:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 16:35:46,759 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 16:35:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 16:35:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 16:35:46,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 16:35:46,843 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 16:35:46,846 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 16:35:47,100 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L77: havoc property_#t~bitwise14#1;havoc property_#t~ite16#1;havoc property_#t~bitwise15#1;havoc property_#t~short17#1; [2024-11-16 16:35:47,140 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-16 16:35:47,141 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 16:35:47,171 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 16:35:47,172 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 16:35:47,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:35:47 BoogieIcfgContainer [2024-11-16 16:35:47,172 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 16:35:47,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 16:35:47,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 16:35:47,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 16:35:47,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:35:46" (1/3) ... [2024-11-16 16:35:47,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce9885a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:35:47, skipping insertion in model container [2024-11-16 16:35:47,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:46" (2/3) ... [2024-11-16 16:35:47,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce9885a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:35:47, skipping insertion in model container [2024-11-16 16:35:47,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:35:47" (3/3) ... [2024-11-16 16:35:47,189 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-70.i [2024-11-16 16:35:47,206 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 16:35:47,207 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 16:35:47,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 16:35:47,284 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;@70491d6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 16:35:47,284 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 16:35:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 47 states have internal predecessors, (62), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 16:35:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 16:35:47,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:35:47,298 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:35:47,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:35:47,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:35:47,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1059856978, now seen corresponding path program 1 times [2024-11-16 16:35:47,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:35:47,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553645567] [2024-11-16 16:35:47,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:35:47,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:35:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:35:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:35:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:35:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:35:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:35:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:35:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:35:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:35:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:35:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:35:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:35:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:35:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:35:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:47,665 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 16:35:47,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:35:47,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553645567] [2024-11-16 16:35:47,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553645567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:35:47,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:35:47,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 16:35:47,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743931475] [2024-11-16 16:35:47,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:35:47,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 16:35:47,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:35:47,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 16:35:47,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:35:47,705 INFO L87 Difference]: Start difference. First operand has 62 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 47 states have internal predecessors, (62), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 16:35:47,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:35:47,741 INFO L93 Difference]: Finished difference Result 116 states and 182 transitions. [2024-11-16 16:35:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 16:35:47,743 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 92 [2024-11-16 16:35:47,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:35:47,754 INFO L225 Difference]: With dead ends: 116 [2024-11-16 16:35:47,755 INFO L226 Difference]: Without dead ends: 57 [2024-11-16 16:35:47,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:35:47,764 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:35:47,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:35:47,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-16 16:35:47,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-16 16:35:47,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 42 states have internal predecessors, (54), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 16:35:47,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 80 transitions. [2024-11-16 16:35:47,801 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 80 transitions. Word has length 92 [2024-11-16 16:35:47,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:35:47,801 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 80 transitions. [2024-11-16 16:35:47,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 16:35:47,802 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2024-11-16 16:35:47,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 16:35:47,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:35:47,805 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:35:47,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 16:35:47,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:35:47,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:35:47,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1350398065, now seen corresponding path program 1 times [2024-11-16 16:35:47,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:35:47,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976204837] [2024-11-16 16:35:47,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:35:47,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:35:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:35:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:35:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:35:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:35:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:35:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:35:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:35:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:35:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:35:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:35:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:35:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:35:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:35:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 16:35:49,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:35:49,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976204837] [2024-11-16 16:35:49,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976204837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:35:49,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:35:49,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 16:35:49,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465240855] [2024-11-16 16:35:49,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:35:49,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 16:35:49,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:35:49,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 16:35:49,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:35:49,741 INFO L87 Difference]: Start difference. First operand 57 states and 80 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 16:35:50,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:35:50,071 INFO L93 Difference]: Finished difference Result 142 states and 200 transitions. [2024-11-16 16:35:50,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 16:35:50,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-11-16 16:35:50,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:35:50,074 INFO L225 Difference]: With dead ends: 142 [2024-11-16 16:35:50,074 INFO L226 Difference]: Without dead ends: 88 [2024-11-16 16:35:50,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 16:35:50,077 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 54 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:35:50,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 165 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:35:50,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-16 16:35:50,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 69. [2024-11-16 16:35:50,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 54 states have internal predecessors, (72), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 16:35:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 98 transitions. [2024-11-16 16:35:50,089 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 98 transitions. Word has length 92 [2024-11-16 16:35:50,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:35:50,091 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 98 transitions. [2024-11-16 16:35:50,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 16:35:50,091 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 98 transitions. [2024-11-16 16:35:50,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 16:35:50,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:35:50,094 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:35:50,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 16:35:50,094 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:35:50,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:35:50,095 INFO L85 PathProgramCache]: Analyzing trace with hash 844839440, now seen corresponding path program 1 times [2024-11-16 16:35:50,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:35:50,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741740417] [2024-11-16 16:35:50,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:35:50,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:35:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:35:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:35:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:35:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:35:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:35:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:35:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:35:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:35:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:35:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:35:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:35:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:35:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:35:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,178 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 16:35:50,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:35:50,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741740417] [2024-11-16 16:35:50,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741740417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:35:50,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:35:50,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 16:35:50,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886581717] [2024-11-16 16:35:50,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:35:50,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 16:35:50,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:35:50,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 16:35:50,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 16:35:50,181 INFO L87 Difference]: Start difference. First operand 69 states and 98 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 16:35:50,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:35:50,219 INFO L93 Difference]: Finished difference Result 152 states and 213 transitions. [2024-11-16 16:35:50,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 16:35:50,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-11-16 16:35:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:35:50,223 INFO L225 Difference]: With dead ends: 152 [2024-11-16 16:35:50,223 INFO L226 Difference]: Without dead ends: 86 [2024-11-16 16:35:50,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 16:35:50,225 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 34 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:35:50,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 162 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:35:50,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-16 16:35:50,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 69. [2024-11-16 16:35:50,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 54 states have internal predecessors, (71), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 16:35:50,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2024-11-16 16:35:50,242 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 97 transitions. Word has length 92 [2024-11-16 16:35:50,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:35:50,242 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 97 transitions. [2024-11-16 16:35:50,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 16:35:50,243 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions. [2024-11-16 16:35:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 16:35:50,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:35:50,248 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:35:50,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 16:35:50,249 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:35:50,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:35:50,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1707317521, now seen corresponding path program 1 times [2024-11-16 16:35:50,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:35:50,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247787034] [2024-11-16 16:35:50,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:35:50,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:35:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:35:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:35:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:35:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:35:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:35:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:35:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:35:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:35:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:35:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:35:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:35:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:35:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:35:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 16:35:50,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:35:50,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247787034] [2024-11-16 16:35:50,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247787034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:35:50,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:35:50,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 16:35:50,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423603431] [2024-11-16 16:35:50,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:35:50,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 16:35:50,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:35:50,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 16:35:50,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 16:35:50,470 INFO L87 Difference]: Start difference. First operand 69 states and 97 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 16:35:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:35:50,537 INFO L93 Difference]: Finished difference Result 152 states and 211 transitions. [2024-11-16 16:35:50,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 16:35:50,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-11-16 16:35:50,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:35:50,539 INFO L225 Difference]: With dead ends: 152 [2024-11-16 16:35:50,539 INFO L226 Difference]: Without dead ends: 86 [2024-11-16 16:35:50,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:35:50,541 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 32 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 16:35:50,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 261 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:35:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-16 16:35:50,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 67. [2024-11-16 16:35:50,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 52 states have internal predecessors, (68), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 16:35:50,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 94 transitions. [2024-11-16 16:35:50,555 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 94 transitions. Word has length 92 [2024-11-16 16:35:50,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:35:50,555 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 94 transitions. [2024-11-16 16:35:50,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 16:35:50,558 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 94 transitions. [2024-11-16 16:35:50,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 16:35:50,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:35:50,559 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:35:50,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 16:35:50,560 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:35:50,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:35:50,564 INFO L85 PathProgramCache]: Analyzing trace with hash -617033714, now seen corresponding path program 1 times [2024-11-16 16:35:50,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:35:50,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021607974] [2024-11-16 16:35:50,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:35:50,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:35:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:35:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:35:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:35:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:35:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:35:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:35:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:35:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:35:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:35:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:35:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:35:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:35:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:35:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-16 16:35:50,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:35:50,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021607974] [2024-11-16 16:35:50,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021607974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 16:35:50,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99813380] [2024-11-16 16:35:50,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:35:50,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:35:50,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:35:50,989 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) [2024-11-16 16:35:50,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 16:35:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:51,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-16 16:35:51,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:35:51,340 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 148 proven. 24 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-16 16:35:51,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 16:35:51,652 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-16 16:35:51,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99813380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 16:35:51,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 16:35:51,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2024-11-16 16:35:51,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272944705] [2024-11-16 16:35:51,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 16:35:51,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 16:35:51,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:35:51,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 16:35:51,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-16 16:35:51,660 INFO L87 Difference]: Start difference. First operand 67 states and 94 transitions. Second operand has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-16 16:35:52,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:35:52,163 INFO L93 Difference]: Finished difference Result 171 states and 233 transitions. [2024-11-16 16:35:52,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 16:35:52,163 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 95 [2024-11-16 16:35:52,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:35:52,165 INFO L225 Difference]: With dead ends: 171 [2024-11-16 16:35:52,165 INFO L226 Difference]: Without dead ends: 107 [2024-11-16 16:35:52,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-16 16:35:52,167 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 242 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 16:35:52,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 366 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 16:35:52,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-16 16:35:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 99. [2024-11-16 16:35:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.2875) internal successors, (103), 81 states have internal predecessors, (103), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 16:35:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2024-11-16 16:35:52,177 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 95 [2024-11-16 16:35:52,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:35:52,177 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2024-11-16 16:35:52,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-16 16:35:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2024-11-16 16:35:52,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 16:35:52,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:35:52,179 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:35:52,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 16:35:52,379 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 [2024-11-16 16:35:52,380 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:35:52,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:35:52,382 INFO L85 PathProgramCache]: Analyzing trace with hash -487950995, now seen corresponding path program 1 times [2024-11-16 16:35:52,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:35:52,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811926707] [2024-11-16 16:35:52,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:35:52,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:35:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:35:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:35:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:35:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:35:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:35:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:35:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:35:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:35:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:35:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:35:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:35:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:35:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:35:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,147 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 16:35:53,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:35:53,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811926707] [2024-11-16 16:35:53,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811926707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:35:53,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:35:53,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 16:35:53,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292182108] [2024-11-16 16:35:53,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:35:53,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 16:35:53,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:35:53,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 16:35:53,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 16:35:53,151 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 16:35:53,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:35:53,603 INFO L93 Difference]: Finished difference Result 110 states and 143 transitions. [2024-11-16 16:35:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 16:35:53,604 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-16 16:35:53,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:35:53,606 INFO L225 Difference]: With dead ends: 110 [2024-11-16 16:35:53,606 INFO L226 Difference]: Without dead ends: 107 [2024-11-16 16:35:53,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-16 16:35:53,608 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 66 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 16:35:53,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 472 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 16:35:53,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-16 16:35:53,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2024-11-16 16:35:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 85 states have internal predecessors, (107), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 16:35:53,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 137 transitions. [2024-11-16 16:35:53,627 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 137 transitions. Word has length 95 [2024-11-16 16:35:53,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:35:53,627 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 137 transitions. [2024-11-16 16:35:53,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 16:35:53,627 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 137 transitions. [2024-11-16 16:35:53,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 16:35:53,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:35:53,633 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:35:53,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 16:35:53,633 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:35:53,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:35:53,634 INFO L85 PathProgramCache]: Analyzing trace with hash -910436721, now seen corresponding path program 1 times [2024-11-16 16:35:53,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:35:53,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004681830] [2024-11-16 16:35:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:35:53,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:35:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:35:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 16:35:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 16:35:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 16:35:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 16:35:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 16:35:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 16:35:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 16:35:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 16:35:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 16:35:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 16:35:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 16:35:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 16:35:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 16:35:53,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:35:53,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004681830] [2024-11-16 16:35:53,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004681830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:35:53,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:35:53,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 16:35:53,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973468491] [2024-11-16 16:35:53,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:35:53,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 16:35:53,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:35:53,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 16:35:53,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 16:35:53,762 INFO L87 Difference]: Start difference. First operand 103 states and 137 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 16:35:53,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:35:53,936 INFO L93 Difference]: Finished difference Result 263 states and 346 transitions. [2024-11-16 16:35:53,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 16:35:53,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-16 16:35:53,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:35:53,939 INFO L225 Difference]: With dead ends: 263 [2024-11-16 16:35:53,939 INFO L226 Difference]: Without dead ends: 163 [2024-11-16 16:35:53,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 16:35:53,940 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 77 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 16:35:53,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 215 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 16:35:53,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-16 16:35:53,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 112. [2024-11-16 16:35:53,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 93 states have (on average 1.3118279569892473) internal successors, (122), 94 states have internal predecessors, (122), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 16:35:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 152 transitions. [2024-11-16 16:35:53,961 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 152 transitions. Word has length 95 [2024-11-16 16:35:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:35:53,962 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 152 transitions. [2024-11-16 16:35:53,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 16:35:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 152 transitions. [2024-11-16 16:35:53,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 16:35:53,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:35:53,963 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:35:53,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 16:35:53,967 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:35:53,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:35:53,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1587579216, now seen corresponding path program 1 times [2024-11-16 16:35:53,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:35:53,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121813719] [2024-11-16 16:35:53,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:35:53,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:35:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 16:35:53,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 16:35:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 16:35:54,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 16:35:54,049 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 16:35:54,050 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 16:35:54,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 16:35:54,057 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:35:54,138 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 16:35:54,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:35:54 BoogieIcfgContainer [2024-11-16 16:35:54,140 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 16:35:54,141 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 16:35:54,141 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 16:35:54,141 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 16:35:54,142 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:35:47" (3/4) ... [2024-11-16 16:35:54,144 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-16 16:35:54,145 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 16:35:54,146 INFO L158 Benchmark]: Toolchain (without parser) took 7952.83ms. Allocated memory was 138.4MB in the beginning and 268.4MB in the end (delta: 130.0MB). Free memory was 83.5MB in the beginning and 175.5MB in the end (delta: -91.9MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2024-11-16 16:35:54,146 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 16:35:54,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.21ms. Allocated memory is still 138.4MB. Free memory was 83.5MB in the beginning and 69.2MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 16:35:54,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.20ms. Allocated memory is still 138.4MB. Free memory was 69.2MB in the beginning and 65.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 16:35:54,147 INFO L158 Benchmark]: Boogie Preprocessor took 92.51ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 65.9MB in the beginning and 154.7MB in the end (delta: -88.8MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-11-16 16:35:54,147 INFO L158 Benchmark]: IcfgBuilder took 500.90ms. Allocated memory is still 184.5MB. Free memory was 154.7MB in the beginning and 134.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-16 16:35:54,147 INFO L158 Benchmark]: TraceAbstraction took 6964.69ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 133.8MB in the beginning and 176.5MB in the end (delta: -42.7MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2024-11-16 16:35:54,147 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 268.4MB. Free memory was 176.5MB in the beginning and 175.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 16:35:54,149 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.21ms. Allocated memory is still 138.4MB. Free memory was 83.5MB in the beginning and 69.2MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.20ms. Allocated memory is still 138.4MB. Free memory was 69.2MB in the beginning and 65.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.51ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 65.9MB in the beginning and 154.7MB in the end (delta: -88.8MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * IcfgBuilder took 500.90ms. Allocated memory is still 184.5MB. Free memory was 154.7MB in the beginning and 134.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6964.69ms. Allocated memory was 184.5MB in the beginning and 268.4MB in the end (delta: 83.9MB). Free memory was 133.8MB in the beginning and 176.5MB in the end (delta: -42.7MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 268.4MB. Free memory was 176.5MB in the beginning and 175.5MB in the end (delta: 1.0MB). 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 77. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 0; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_3 = 1; [L25] unsigned short int var_1_4 = 19138; [L26] unsigned short int var_1_5 = 0; [L27] signed char var_1_6 = 25; [L28] signed long int var_1_7 = -50; [L29] double var_1_8 = 8.3; [L30] unsigned char var_1_9 = 128; [L31] unsigned char var_1_10 = 1; [L32] double var_1_11 = 256.2; VAL [isInitial=0, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L81] isInitial = 1 [L82] FCALL initially() [L83] COND TRUE 1 [L84] FCALL updateLastVariables() [L85] CALL updateVariables() [L53] var_1_2 = __VERIFIER_nondet_uchar() [L54] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L54] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L55] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L55] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L56] var_1_3 = __VERIFIER_nondet_ushort() [L57] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L57] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L58] CALL assume_abort_if_not(var_1_3 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L58] RET assume_abort_if_not(var_1_3 <= 16383) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=19138, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L59] var_1_4 = __VERIFIER_nondet_ushort() [L60] CALL assume_abort_if_not(var_1_4 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L60] RET assume_abort_if_not(var_1_4 >= 16383) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L61] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L61] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L62] var_1_5 = __VERIFIER_nondet_ushort() [L63] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L63] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L64] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L64] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=128] [L65] var_1_9 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_9 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L66] RET assume_abort_if_not(var_1_9 >= 127) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L67] CALL assume_abort_if_not(var_1_9 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L67] RET assume_abort_if_not(var_1_9 <= 255) VAL [isInitial=1, var_1_10=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L68] var_1_10 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L69] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L70] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L70] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, var_1_10=127, var_1_11=1281/5, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L71] var_1_11 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L72] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=127, var_1_1=0, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L85] RET updateVariables() [L86] CALL step() [L36] COND TRUE \read(var_1_2) [L37] var_1_1 = ((17222 - var_1_3) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_5)) VAL [isInitial=1, var_1_10=127, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L39] unsigned short int stepLocal_0 = var_1_4; VAL [isInitial=1, stepLocal_0=29917, var_1_10=127, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L40] EXPR var_1_5 << var_1_1 VAL [isInitial=1, stepLocal_0=29917, var_1_10=127, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L40] EXPR ((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1)) VAL [isInitial=1, stepLocal_0=29917, var_1_10=127, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=255] [L40] COND FALSE !(stepLocal_0 <= ((((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1))))) [L43] var_1_7 = (var_1_5 + (var_1_1 + var_1_4)) VAL [isInitial=1, var_1_10=127, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=76927, var_1_8=83/10, var_1_9=255] [L45] COND TRUE (var_1_9 - ((((5) > (var_1_10)) ? (5) : (var_1_10)))) >= var_1_3 [L46] var_1_8 = var_1_11 VAL [isInitial=1, var_1_10=127, var_1_11=76932, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=76927, var_1_8=76932, var_1_9=255] [L48] COND FALSE !(var_1_2 && (var_1_4 >= (var_1_3 + var_1_7))) VAL [isInitial=1, var_1_10=127, var_1_11=76932, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=76927, var_1_8=76932, var_1_9=255] [L86] RET step() [L87] CALL, EXPR property() [L77] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_3) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_5)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_3 + var_1_7))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1))))) ? (var_1_7 == ((signed long int) (((((var_1_5 - var_1_3)) < (var_1_4)) ? ((var_1_5 - var_1_3)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_5 + (var_1_1 + var_1_4))))) VAL [isInitial=1, var_1_10=127, var_1_11=76932, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=76927, var_1_8=76932, var_1_9=255] [L77] EXPR var_1_5 << var_1_1 VAL [isInitial=1, var_1_10=127, var_1_11=76932, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=76927, var_1_8=76932, var_1_9=255] [L77] EXPR ((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1)) VAL [isInitial=1, var_1_10=127, var_1_11=76932, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=76927, var_1_8=76932, var_1_9=255] [L77] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_3) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_5)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_3 + var_1_7))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1))))) ? (var_1_7 == ((signed long int) (((((var_1_5 - var_1_3)) < (var_1_4)) ? ((var_1_5 - var_1_3)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_5 + (var_1_1 + var_1_4))))) VAL [isInitial=1, var_1_10=127, var_1_11=76932, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=76927, var_1_8=76932, var_1_9=255] [L77-L78] return (((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_3) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_5)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_3 + var_1_7))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_3) > ((var_1_5 << var_1_1))) ? (var_1_3) : ((var_1_5 << var_1_1))))) ? (var_1_7 == ((signed long int) (((((var_1_5 - var_1_3)) < (var_1_4)) ? ((var_1_5 - var_1_3)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_5 + (var_1_1 + var_1_4)))))) && (((var_1_9 - ((((5) > (var_1_10)) ? (5) : (var_1_10)))) >= var_1_3) ? (var_1_8 == ((double) var_1_11)) : 1) ; [L87] RET, EXPR property() [L87] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=127, var_1_11=76932, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=76927, var_1_8=76932, var_1_9=255] [L19] reach_error() VAL [isInitial=1, var_1_10=127, var_1_11=76932, var_1_1=47010, var_1_2=1, var_1_3=128, var_1_4=29917, var_1_5=0, var_1_6=25, var_1_7=76927, var_1_8=76932, var_1_9=255] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 8, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 509 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 505 mSDsluCounter, 1717 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1181 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 975 IncrementalHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 536 mSDtfsCounter, 975 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 392 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=7, InterpolantAutomatonStates: 44, 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, 7 MinimizatonAttempts, 118 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 843 NumberOfCodeBlocks, 843 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 834 ConstructedInterpolants, 0 QuantifiedInterpolants, 3134 SizeOfPredicates, 7 NumberOfNonLiveVariables, 219 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 2736/2808 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 [2024-11-16 16:35:54,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-70.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ccbd3d527b155627328a35d6caa52dc0505af33db01f6600e6e4ac6df0debf6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 16:35:56,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 16:35:56,464 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-16 16:35:56,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 16:35:56,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 16:35:56,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 16:35:56,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 16:35:56,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 16:35:56,504 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 16:35:56,505 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 16:35:56,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 16:35:56,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 16:35:56,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 16:35:56,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 16:35:56,508 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 16:35:56,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 16:35:56,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 16:35:56,512 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 16:35:56,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 16:35:56,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 16:35:56,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 16:35:56,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 16:35:56,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 16:35:56,514 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 16:35:56,515 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-16 16:35:56,515 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 16:35:56,515 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-16 16:35:56,515 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 16:35:56,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 16:35:56,516 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 16:35:56,516 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 16:35:56,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 16:35:56,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 16:35:56,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 16:35:56,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:35:56,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 16:35:56,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 16:35:56,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 16:35:56,519 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-16 16:35:56,519 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-16 16:35:56,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 16:35:56,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 16:35:56,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 16:35:56,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 16:35:56,520 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ccbd3d527b155627328a35d6caa52dc0505af33db01f6600e6e4ac6df0debf6 [2024-11-16 16:35:56,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 16:35:56,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 16:35:56,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 16:35:56,892 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 16:35:56,892 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 16:35:56,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-70.i [2024-11-16 16:35:58,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 16:35:58,684 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 16:35:58,685 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-70.i [2024-11-16 16:35:58,693 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b0edf15/a2d7050a663a4ee39e01d00962af6438/FLAG925a0cb36 [2024-11-16 16:35:58,705 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b0edf15/a2d7050a663a4ee39e01d00962af6438 [2024-11-16 16:35:58,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 16:35:58,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 16:35:58,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 16:35:58,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 16:35:58,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 16:35:58,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:35:58" (1/1) ... [2024-11-16 16:35:58,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8064fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:58, skipping insertion in model container [2024-11-16 16:35:58,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:35:58" (1/1) ... [2024-11-16 16:35:58,739 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 16:35:58,926 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_loopvsstraightlinecode_25-while_file-70.i[915,928] [2024-11-16 16:35:58,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:35:58,999 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 16:35:59,010 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_loopvsstraightlinecode_25-while_file-70.i[915,928] [2024-11-16 16:35:59,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:35:59,079 INFO L204 MainTranslator]: Completed translation [2024-11-16 16:35:59,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59 WrapperNode [2024-11-16 16:35:59,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 16:35:59,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 16:35:59,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 16:35:59,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 16:35:59,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,133 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2024-11-16 16:35:59,137 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 16:35:59,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 16:35:59,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 16:35:59,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 16:35:59,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,155 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,172 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]. [2024-11-16 16:35:59,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,184 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 16:35:59,199 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 16:35:59,199 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 16:35:59,199 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 16:35:59,200 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (1/1) ... [2024-11-16 16:35:59,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:35:59,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:35:59,235 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) [2024-11-16 16:35:59,241 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 [2024-11-16 16:35:59,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 16:35:59,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-16 16:35:59,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 16:35:59,287 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 16:35:59,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 16:35:59,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 16:35:59,364 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 16:35:59,366 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 16:35:59,592 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-16 16:35:59,593 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 16:35:59,608 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 16:35:59,608 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 16:35:59,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:35:59 BoogieIcfgContainer [2024-11-16 16:35:59,609 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 16:35:59,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 16:35:59,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 16:35:59,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 16:35:59,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:35:58" (1/3) ... [2024-11-16 16:35:59,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1884fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:35:59, skipping insertion in model container [2024-11-16 16:35:59,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:59" (2/3) ... [2024-11-16 16:35:59,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1884fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:35:59, skipping insertion in model container [2024-11-16 16:35:59,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:35:59" (3/3) ... [2024-11-16 16:35:59,618 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-70.i [2024-11-16 16:35:59,634 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 16:35:59,634 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 16:35:59,692 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 16:35:59,700 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;@3d0a842e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 16:35:59,700 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 16:35:59,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 16:35:59,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-16 16:35:59,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:35:59,717 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:35:59,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:35:59,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:35:59,726 INFO L85 PathProgramCache]: Analyzing trace with hash 781843591, now seen corresponding path program 1 times [2024-11-16 16:35:59,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 16:35:59,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019887121] [2024-11-16 16:35:59,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:35:59,743 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 [2024-11-16 16:35:59,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 16:35:59,746 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) [2024-11-16 16:35:59,755 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 [2024-11-16 16:35:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:35:59,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 16:35:59,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:35:59,979 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-16 16:35:59,981 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 16:35:59,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 16:35:59,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019887121] [2024-11-16 16:35:59,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019887121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:35:59,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:35:59,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 16:35:59,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825372887] [2024-11-16 16:35:59,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:35:59,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 16:35:59,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 16:36:00,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 16:36:00,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:36:00,012 INFO L87 Difference]: Start difference. First operand has 47 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 16:36:00,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:36:00,033 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2024-11-16 16:36:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 16:36:00,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2024-11-16 16:36:00,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:36:00,040 INFO L225 Difference]: With dead ends: 86 [2024-11-16 16:36:00,040 INFO L226 Difference]: Without dead ends: 42 [2024-11-16 16:36:00,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:36:00,048 INFO L432 NwaCegarLoop]: 58 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, 58 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 [2024-11-16 16:36:00,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:36:00,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-16 16:36:00,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-16 16:36:00,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 16:36:00,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2024-11-16 16:36:00,088 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 88 [2024-11-16 16:36:00,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:36:00,089 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-11-16 16:36:00,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 16:36:00,089 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-11-16 16:36:00,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-16 16:36:00,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:36:00,096 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 16:36:00,103 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 [2024-11-16 16:36:00,300 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 [2024-11-16 16:36:00,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:36:00,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:36:00,302 INFO L85 PathProgramCache]: Analyzing trace with hash 499986982, now seen corresponding path program 1 times [2024-11-16 16:36:00,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 16:36:00,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248624056] [2024-11-16 16:36:00,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:36:00,303 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 [2024-11-16 16:36:00,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 16:36:00,307 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) [2024-11-16 16:36:00,308 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 [2024-11-16 16:36:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:36:00,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-16 16:36:00,499 INFO L278 TraceCheckSpWp]: Computing forward predicates...