./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.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 04228aca453f32987dc7c53bca4e08cb18c9aabfe1bbd326fa4a64f045b32803 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:52:51,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:52:51,603 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:52:51,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:52:51,611 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:52:51,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:52:51,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:52:51,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:52:51,635 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:52:51,636 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:52:51,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:52:51,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:52:51,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:52:51,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:52:51,639 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:52:51,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:52:51,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:52:51,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:52:51,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:52:51,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:52:51,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:52:51,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:52:51,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:52:51,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:52:51,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:52:51,645 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:52:51,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:52:51,645 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:52:51,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:52:51,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:52:51,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:52:51,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:52:51,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:52:51,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:52:51,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:52:51,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:52:51,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:52:51,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:52:51,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:52:51,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:52:51,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:52:51,649 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:52:51,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04228aca453f32987dc7c53bca4e08cb18c9aabfe1bbd326fa4a64f045b32803 [2024-10-24 08:52:51,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:52:51,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:52:51,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:52:51,876 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:52:51,876 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:52:51,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i [2024-10-24 08:52:53,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:52:53,470 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:52:53,471 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i [2024-10-24 08:52:53,483 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a458e047c/1fc634620d9344818ac3db328015aefd/FLAG97489de9a [2024-10-24 08:52:53,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a458e047c/1fc634620d9344818ac3db328015aefd [2024-10-24 08:52:53,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:52:53,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:52:53,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:52:53,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:52:53,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:52:53,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c4d01ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53, skipping insertion in model container [2024-10-24 08:52:53,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:52:53,688 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i[916,929] [2024-10-24 08:52:53,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:52:53,756 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:52:53,767 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i[916,929] [2024-10-24 08:52:53,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:52:53,811 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:52:53,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53 WrapperNode [2024-10-24 08:52:53,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:52:53,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:52:53,813 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:52:53,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:52:53,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,895 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2024-10-24 08:52:53,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:52:53,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:52:53,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:52:53,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:52:53,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,936 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]. [2024-10-24 08:52:53,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:52:53,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:52:53,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:52:53,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:52:53,969 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (1/1) ... [2024-10-24 08:52:53,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:52:53,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:52:54,004 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) [2024-10-24 08:52:54,007 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 [2024-10-24 08:52:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:52:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:52:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:52:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:52:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:52:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:52:54,158 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:52:54,160 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:52:54,497 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-24 08:52:54,497 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:52:54,563 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:52:54,564 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:52:54,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:52:54 BoogieIcfgContainer [2024-10-24 08:52:54,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:52:54,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:52:54,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:52:54,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:52:54,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:52:53" (1/3) ... [2024-10-24 08:52:54,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c0d4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:52:54, skipping insertion in model container [2024-10-24 08:52:54,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:53" (2/3) ... [2024-10-24 08:52:54,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c0d4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:52:54, skipping insertion in model container [2024-10-24 08:52:54,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:52:54" (3/3) ... [2024-10-24 08:52:54,577 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-20.i [2024-10-24 08:52:54,601 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:52:54,601 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:52:54,680 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:52:54,685 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;@68059db0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:52:54,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:52:54,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 08:52:54,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 08:52:54,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:54,705 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:54,706 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:54,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:54,711 INFO L85 PathProgramCache]: Analyzing trace with hash 574606129, now seen corresponding path program 1 times [2024-10-24 08:52:54,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:54,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319127496] [2024-10-24 08:52:54,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:54,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:52:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:52:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:52:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:52:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:52:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:52:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:52:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:52:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:52:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 08:52:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:55,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-10-24 08:52:55,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:55,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319127496] [2024-10-24 08:52:55,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319127496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:55,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:55,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:52:55,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550401326] [2024-10-24 08:52:55,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:55,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:52:55,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:55,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:52:55,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:52:55,192 INFO L87 Difference]: Start difference. First operand has 56 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-24 08:52:55,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:55,221 INFO L93 Difference]: Finished difference Result 109 states and 196 transitions. [2024-10-24 08:52:55,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:52:55,224 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 142 [2024-10-24 08:52:55,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:55,230 INFO L225 Difference]: With dead ends: 109 [2024-10-24 08:52:55,230 INFO L226 Difference]: Without dead ends: 54 [2024-10-24 08:52:55,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:52:55,237 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:55,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:52:55,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-24 08:52:55,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-10-24 08:52:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 08:52:55,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 82 transitions. [2024-10-24 08:52:55,288 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 82 transitions. Word has length 142 [2024-10-24 08:52:55,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:55,289 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 82 transitions. [2024-10-24 08:52:55,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-24 08:52:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 82 transitions. [2024-10-24 08:52:55,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 08:52:55,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:55,294 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:55,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:52:55,294 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:55,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:55,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1741718735, now seen corresponding path program 1 times [2024-10-24 08:52:55,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:55,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486337922] [2024-10-24 08:52:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:55,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 08:52:55,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 08:52:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 08:52:55,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 08:52:55,518 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 08:52:55,520 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 08:52:55,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:52:55,524 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 08:52:55,670 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 08:52:55,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:52:55 BoogieIcfgContainer [2024-10-24 08:52:55,673 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 08:52:55,673 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 08:52:55,673 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 08:52:55,674 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 08:52:55,674 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:52:54" (3/4) ... [2024-10-24 08:52:55,676 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 08:52:55,677 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 08:52:55,677 INFO L158 Benchmark]: Toolchain (without parser) took 2180.60ms. Allocated memory was 142.6MB in the beginning and 222.3MB in the end (delta: 79.7MB). Free memory was 71.5MB in the beginning and 183.9MB in the end (delta: -112.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 08:52:55,678 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 91.3MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 08:52:55,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.72ms. Allocated memory is still 142.6MB. Free memory was 71.2MB in the beginning and 57.0MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 08:52:55,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.05ms. Allocated memory was 142.6MB in the beginning and 222.3MB in the end (delta: 79.7MB). Free memory was 57.0MB in the beginning and 194.4MB in the end (delta: -137.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-10-24 08:52:55,679 INFO L158 Benchmark]: Boogie Preprocessor took 71.19ms. Allocated memory is still 222.3MB. Free memory was 194.4MB in the beginning and 191.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 08:52:55,679 INFO L158 Benchmark]: RCFGBuilder took 596.14ms. Allocated memory is still 222.3MB. Free memory was 191.2MB in the beginning and 171.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 08:52:55,679 INFO L158 Benchmark]: TraceAbstraction took 1104.55ms. Allocated memory is still 222.3MB. Free memory was 170.2MB in the beginning and 185.0MB in the end (delta: -14.8MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2024-10-24 08:52:55,680 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 222.3MB. Free memory was 185.0MB in the beginning and 183.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 08:52:55,682 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 91.3MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.72ms. Allocated memory is still 142.6MB. Free memory was 71.2MB in the beginning and 57.0MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.05ms. Allocated memory was 142.6MB in the beginning and 222.3MB in the end (delta: 79.7MB). Free memory was 57.0MB in the beginning and 194.4MB in the end (delta: -137.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.19ms. Allocated memory is still 222.3MB. Free memory was 194.4MB in the beginning and 191.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 596.14ms. Allocated memory is still 222.3MB. Free memory was 191.2MB in the beginning and 171.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1104.55ms. Allocated memory is still 222.3MB. Free memory was 170.2MB in the beginning and 185.0MB in the end (delta: -14.8MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 222.3MB. Free memory was 185.0MB in the beginning and 183.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 to_int at line 108. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 0; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = 0; [L25] signed long int var_1_4 = 2; [L26] signed long int var_1_5 = 8; [L27] signed long int var_1_6 = 999999999; [L28] signed long int var_1_7 = 10; [L29] signed long int var_1_8 = 4; [L30] unsigned long int var_1_9 = 256; [L31] unsigned char var_1_10 = 0; [L32] unsigned long int var_1_11 = 3724367395; [L33] unsigned long int var_1_12 = 25; [L34] unsigned long int var_1_13 = 1; [L35] unsigned char var_1_14 = 1; [L36] unsigned char var_1_15 = 128; [L37] unsigned char var_1_16 = 100; [L112] isInitial = 1 [L113] FCALL initially() [L114] COND TRUE 1 [L115] FCALL updateLastVariables() [L116] CALL updateVariables() [L68] var_1_2 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_3=0, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_3=0, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L69] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_3=0, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L70] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=0, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=0, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L70] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=0, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L71] var_1_3 = __VERIFIER_nondet_long() [L72] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L72] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L73] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L73] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L74] var_1_4 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L75] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L76] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L76] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=8, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L77] var_1_5 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L78] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L79] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L79] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=999999999, var_1_7=10, var_1_8=4, var_1_9=256] [L80] var_1_6 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_6 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=4, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=4, var_1_9=256] [L81] RET assume_abort_if_not(var_1_6 >= -2147483648) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=4, var_1_9=256] [L82] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=4, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=4, var_1_9=256] [L82] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=4, var_1_9=256] [L83] var_1_8 = __VERIFIER_nondet_long() [L84] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L84] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L85] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L85] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L86] var_1_10 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L87] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L88] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L88] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=3724367395, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L89] var_1_11 = __VERIFIER_nondet_ulong() [L90] CALL assume_abort_if_not(var_1_11 >= 3221225470) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L90] RET assume_abort_if_not(var_1_11 >= 3221225470) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L91] CALL assume_abort_if_not(var_1_11 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L91] RET assume_abort_if_not(var_1_11 <= 4294967294) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=25, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L92] var_1_12 = __VERIFIER_nondet_ulong() [L93] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L93] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L94] CALL assume_abort_if_not(var_1_12 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L94] RET assume_abort_if_not(var_1_12 <= 1073741823) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=1, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L95] var_1_13 = __VERIFIER_nondet_ulong() [L96] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L96] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L97] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L97] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=128, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L98] var_1_15 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_15 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L99] RET assume_abort_if_not(var_1_15 >= 127) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L100] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L100] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=100, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L101] var_1_16 = __VERIFIER_nondet_uchar() [L102] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L102] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L103] CALL assume_abort_if_not(var_1_16 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=0, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=0, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L103] RET assume_abort_if_not(var_1_16 <= 127) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=0, var_1_1=0, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L116] RET updateVariables() [L117] CALL step() [L41] COND TRUE \read(var_1_2) [L42] var_1_1 = ((var_1_3 - var_1_4) - var_1_5) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=0, var_1_1=-1, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=0, var_1_9=256] [L46] var_1_7 = ((15.5 + var_1_4) - (var_1_3 - var_1_8)) [L47] unsigned long int stepLocal_2 = var_1_13; [L48] signed long int stepLocal_1 = 5; VAL [isInitial=1, stepLocal_1=5, stepLocal_2=-3221225474, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=0, var_1_1=-1, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_8=0, var_1_9=256] [L49] COND FALSE !(stepLocal_1 >= var_1_11) VAL [isInitial=1, stepLocal_2=-3221225474, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=0, var_1_1=-1, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_8=0, var_1_9=256] [L60] unsigned char stepLocal_0 = var_1_2; VAL [isInitial=1, stepLocal_0=-255, stepLocal_2=-3221225474, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=0, var_1_1=-1, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_8=0, var_1_9=256] [L61] COND TRUE var_1_10 || stepLocal_0 [L62] var_1_9 = ((var_1_11 - var_1_14) - var_1_14) VAL [isInitial=1, stepLocal_2=-3221225474, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=0, var_1_1=-1, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_8=0, var_1_9=4294967292] [L117] RET step() [L118] CALL, EXPR property() [L108-L109] return (((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_4) - var_1_5))) : (var_1_1 == ((signed long int) (var_1_4 + var_1_6)))) && (var_1_7 == ((signed long int) ((15.5 + var_1_4) - (var_1_3 - var_1_8))))) && ((var_1_10 || var_1_2) ? (var_1_9 == ((unsigned long int) ((var_1_11 - var_1_14) - var_1_14))) : (var_1_9 == ((unsigned long int) (var_1_14 + ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))))))) && ((5 >= var_1_11) ? ((var_1_1 >= var_1_8) ? (var_1_14 == ((unsigned char) (128 - 16))) : ((var_1_13 >= ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))) ? (var_1_14 == ((unsigned char) (var_1_15 - var_1_16))) : (var_1_14 == ((unsigned char) var_1_16)))) : 1) ; [L118] RET, EXPR property() [L118] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=0, var_1_1=-1, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=4294967295, var_1_8=0, var_1_9=4294967292] [L19] reach_error() VAL [isInitial=1, var_1_10=1, var_1_11=4294967294, var_1_12=1073741823, var_1_13=-3221225474, var_1_14=1, var_1_15=254, var_1_16=0, var_1_1=-1, var_1_2=-255, var_1_3=2147483647, var_1_4=2147483647, var_1_5=1, var_1_6=0, var_1_7=4294967295, var_1_8=0, var_1_9=4294967292] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 79 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 1104/1104 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 [2024-10-24 08:52:55,707 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/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.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 04228aca453f32987dc7c53bca4e08cb18c9aabfe1bbd326fa4a64f045b32803 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:52:57,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:52:57,785 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-24 08:52:57,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:52:57,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:52:57,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:52:57,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:52:57,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:52:57,825 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:52:57,825 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:52:57,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:52:57,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:52:57,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:52:57,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:52:57,827 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:52:57,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:52:57,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:52:57,828 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:52:57,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:52:57,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:52:57,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:52:57,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:52:57,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:52:57,835 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 08:52:57,836 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 08:52:57,836 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:52:57,836 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 08:52:57,836 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:52:57,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:52:57,837 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:52:57,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:52:57,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:52:57,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:52:57,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:52:57,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:52:57,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:52:57,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:52:57,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:52:57,838 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 08:52:57,838 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 08:52:57,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:52:57,839 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:52:57,839 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:52:57,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:52:57,840 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 08:52:57,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04228aca453f32987dc7c53bca4e08cb18c9aabfe1bbd326fa4a64f045b32803 [2024-10-24 08:52:58,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:52:58,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:52:58,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:52:58,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:52:58,153 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:52:58,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i [2024-10-24 08:52:59,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:52:59,931 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:52:59,932 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i [2024-10-24 08:52:59,941 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deae5828e/cf917a31da7b4f99982c655e7b3725b7/FLAGfc6901f4b [2024-10-24 08:53:00,275 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deae5828e/cf917a31da7b4f99982c655e7b3725b7 [2024-10-24 08:53:00,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:53:00,279 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:53:00,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:53:00,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:53:00,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:53:00,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a3c0486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00, skipping insertion in model container [2024-10-24 08:53:00,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,308 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:53:00,424 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i[916,929] [2024-10-24 08:53:00,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:53:00,492 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:53:00,501 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i[916,929] [2024-10-24 08:53:00,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:53:00,543 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:53:00,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00 WrapperNode [2024-10-24 08:53:00,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:53:00,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:53:00,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:53:00,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:53:00,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,583 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-10-24 08:53:00,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:53:00,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:53:00,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:53:00,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:53:00,593 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,597 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,615 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]. [2024-10-24 08:53:00,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:53:00,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:53:00,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:53:00,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:53:00,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (1/1) ... [2024-10-24 08:53:00,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:53:00,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:53:00,683 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) [2024-10-24 08:53:00,686 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 [2024-10-24 08:53:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:53:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 08:53:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:53:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:53:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:53:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:53:00,806 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:53:00,808 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:53:09,083 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-24 08:53:09,083 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:53:09,131 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:53:09,132 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:53:09,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:53:09 BoogieIcfgContainer [2024-10-24 08:53:09,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:53:09,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:53:09,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:53:09,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:53:09,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:53:00" (1/3) ... [2024-10-24 08:53:09,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78844fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:53:09, skipping insertion in model container [2024-10-24 08:53:09,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:53:00" (2/3) ... [2024-10-24 08:53:09,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78844fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:53:09, skipping insertion in model container [2024-10-24 08:53:09,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:53:09" (3/3) ... [2024-10-24 08:53:09,147 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-20.i [2024-10-24 08:53:09,162 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:53:09,162 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:53:09,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:53:09,238 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;@73abb1be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:53:09,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:53:09,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 08:53:09,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 08:53:09,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:53:09,254 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:53:09,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:53:09,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:53:09,260 INFO L85 PathProgramCache]: Analyzing trace with hash 574606129, now seen corresponding path program 1 times [2024-10-24 08:53:09,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 08:53:09,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397050133] [2024-10-24 08:53:09,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:53:09,275 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 [2024-10-24 08:53:09,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 08:53:09,281 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) [2024-10-24 08:53:09,283 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 [2024-10-24 08:53:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:09,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 08:53:09,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:53:09,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-10-24 08:53:09,640 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 08:53:09,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 08:53:09,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397050133] [2024-10-24 08:53:09,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397050133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:53:09,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:53:09,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:53:09,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289899137] [2024-10-24 08:53:09,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:53:09,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:53:09,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 08:53:09,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:53:09,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:53:09,677 INFO L87 Difference]: Start difference. First operand has 56 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-24 08:53:13,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-24 08:53:13,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:53:13,798 INFO L93 Difference]: Finished difference Result 109 states and 196 transitions. [2024-10-24 08:53:13,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:53:13,829 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 142 [2024-10-24 08:53:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:53:13,836 INFO L225 Difference]: With dead ends: 109 [2024-10-24 08:53:13,836 INFO L226 Difference]: Without dead ends: 54 [2024-10-24 08:53:13,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:53:13,840 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:53:13,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-10-24 08:53:13,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-24 08:53:13,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-10-24 08:53:13,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 08:53:13,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 82 transitions. [2024-10-24 08:53:13,870 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 82 transitions. Word has length 142 [2024-10-24 08:53:13,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:53:13,871 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 82 transitions. [2024-10-24 08:53:13,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-24 08:53:13,871 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 82 transitions. [2024-10-24 08:53:13,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 08:53:13,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:53:13,874 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:53:13,882 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 [2024-10-24 08:53:14,077 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 [2024-10-24 08:53:14,078 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:53:14,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:53:14,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1741718735, now seen corresponding path program 1 times [2024-10-24 08:53:14,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 08:53:14,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279137939] [2024-10-24 08:53:14,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:53:14,079 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 [2024-10-24 08:53:14,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 08:53:14,082 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) [2024-10-24 08:53:14,083 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 [2024-10-24 08:53:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 08:53:14,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 08:53:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 08:53:14,669 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-10-24 08:53:14,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [656784496] [2024-10-24 08:53:14,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:53:14,670 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-24 08:53:14,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-24 08:53:14,673 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-24 08:53:14,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process