./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_operatoramount_amount10_file-27.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_operatoramount_amount10_file-27.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 a2516b40220938196b9b667879c45993cd4bcecc3daa1c811132234d646c2577 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 10:18:22,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 10:18:22,921 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 10:18:22,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 10:18:22,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 10:18:22,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 10:18:22,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 10:18:22,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 10:18:22,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 10:18:22,957 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 10:18:22,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 10:18:22,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 10:18:22,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 10:18:22,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 10:18:22,960 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 10:18:22,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 10:18:22,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 10:18:22,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 10:18:22,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 10:18:22,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 10:18:22,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 10:18:22,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 10:18:22,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 10:18:22,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 10:18:22,965 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 10:18:22,965 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 10:18:22,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 10:18:22,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 10:18:22,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 10:18:22,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 10:18:22,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 10:18:22,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 10:18:22,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 10:18:22,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 10:18:22,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 10:18:22,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 10:18:22,967 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 10:18:22,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 10:18:22,967 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 10:18:22,967 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 10:18:22,967 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 10:18:22,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 10:18:22,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2516b40220938196b9b667879c45993cd4bcecc3daa1c811132234d646c2577 [2024-10-24 10:18:23,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 10:18:23,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 10:18:23,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 10:18:23,179 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 10:18:23,179 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 10:18:23,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-27.i [2024-10-24 10:18:24,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 10:18:24,515 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 10:18:24,515 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-27.i [2024-10-24 10:18:24,522 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d031617c1/07ea051b31ac471cb9c0f7f97737327f/FLAGc9104e8d2 [2024-10-24 10:18:24,535 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d031617c1/07ea051b31ac471cb9c0f7f97737327f [2024-10-24 10:18:24,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 10:18:24,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 10:18:24,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 10:18:24,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 10:18:24,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 10:18:24,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6f1a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24, skipping insertion in model container [2024-10-24 10:18:24,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,567 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 10:18:24,701 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_operatoramount_amount10_file-27.i[915,928] [2024-10-24 10:18:24,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 10:18:24,743 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 10:18:24,753 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_operatoramount_amount10_file-27.i[915,928] [2024-10-24 10:18:24,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 10:18:24,778 INFO L204 MainTranslator]: Completed translation [2024-10-24 10:18:24,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24 WrapperNode [2024-10-24 10:18:24,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 10:18:24,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 10:18:24,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 10:18:24,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 10:18:24,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,804 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 62 [2024-10-24 10:18:24,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 10:18:24,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 10:18:24,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 10:18:24,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 10:18:24,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,814 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,824 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 10:18:24,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 10:18:24,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 10:18:24,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 10:18:24,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 10:18:24,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (1/1) ... [2024-10-24 10:18:24,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 10:18:24,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 10:18:24,865 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 10:18:24,867 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 10:18:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 10:18:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 10:18:24,898 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 10:18:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 10:18:24,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 10:18:24,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 10:18:24,949 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 10:18:24,950 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 10:18:25,097 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-24 10:18:25,098 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 10:18:25,125 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 10:18:25,125 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 10:18:25,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:25 BoogieIcfgContainer [2024-10-24 10:18:25,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 10:18:25,127 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 10:18:25,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 10:18:25,130 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 10:18:25,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:18:24" (1/3) ... [2024-10-24 10:18:25,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105fbd95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:18:25, skipping insertion in model container [2024-10-24 10:18:25,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:24" (2/3) ... [2024-10-24 10:18:25,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105fbd95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:18:25, skipping insertion in model container [2024-10-24 10:18:25,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:25" (3/3) ... [2024-10-24 10:18:25,131 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-27.i [2024-10-24 10:18:25,142 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 10:18:25,143 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 10:18:25,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 10:18:25,189 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;@2444600a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 10:18:25,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 10:18:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-24 10:18:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-24 10:18:25,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:18:25,197 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:18:25,197 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:18:25,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:18:25,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1626744690, now seen corresponding path program 1 times [2024-10-24 10:18:25,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:18:25,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949247725] [2024-10-24 10:18:25,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:18:25,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:18:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:25,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 10:18:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:25,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 10:18:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:25,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 10:18:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:25,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 10:18:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:25,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 10:18:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:25,350 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 10:18:25,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:18:25,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949247725] [2024-10-24 10:18:25,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949247725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:18:25,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:18:25,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 10:18:25,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415125805] [2024-10-24 10:18:25,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:18:25,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 10:18:25,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:18:25,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 10:18:25,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 10:18:25,373 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 10:18:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:18:25,399 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2024-10-24 10:18:25,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 10:18:25,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2024-10-24 10:18:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:18:25,406 INFO L225 Difference]: With dead ends: 43 [2024-10-24 10:18:25,407 INFO L226 Difference]: Without dead ends: 21 [2024-10-24 10:18:25,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 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 10:18:25,411 INFO L432 NwaCegarLoop]: 24 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, 24 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 10:18:25,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 10:18:25,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-10-24 10:18:25,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-10-24 10:18:25,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-24 10:18:25,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2024-10-24 10:18:25,435 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 34 [2024-10-24 10:18:25,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:18:25,436 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-10-24 10:18:25,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 10:18:25,436 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-10-24 10:18:25,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-24 10:18:25,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:18:25,437 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:18:25,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 10:18:25,438 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:18:25,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:18:25,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1719482064, now seen corresponding path program 1 times [2024-10-24 10:18:25,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:18:25,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937796716] [2024-10-24 10:18:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:18:25,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:18:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 10:18:25,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 10:18:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 10:18:25,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 10:18:25,516 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 10:18:25,517 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 10:18:25,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 10:18:25,520 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 10:18:25,542 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 10:18:25,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:18:25 BoogieIcfgContainer [2024-10-24 10:18:25,546 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 10:18:25,547 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 10:18:25,547 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 10:18:25,547 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 10:18:25,547 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:25" (3/4) ... [2024-10-24 10:18:25,549 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 10:18:25,550 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 10:18:25,551 INFO L158 Benchmark]: Toolchain (without parser) took 1012.08ms. Allocated memory is still 190.8MB. Free memory was 124.1MB in the beginning and 121.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2024-10-24 10:18:25,551 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 10:18:25,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.32ms. Allocated memory is still 190.8MB. Free memory was 123.7MB in the beginning and 111.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 10:18:25,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.89ms. Allocated memory is still 190.8MB. Free memory was 111.1MB in the beginning and 109.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 10:18:25,554 INFO L158 Benchmark]: Boogie Preprocessor took 35.61ms. Allocated memory is still 190.8MB. Free memory was 109.3MB in the beginning and 107.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 10:18:25,554 INFO L158 Benchmark]: RCFGBuilder took 285.14ms. Allocated memory is still 190.8MB. Free memory was 107.3MB in the beginning and 155.6MB in the end (delta: -48.4MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-10-24 10:18:25,554 INFO L158 Benchmark]: TraceAbstraction took 419.11ms. Allocated memory is still 190.8MB. Free memory was 154.6MB in the beginning and 122.1MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-24 10:18:25,557 INFO L158 Benchmark]: Witness Printer took 2.92ms. Allocated memory is still 190.8MB. Free memory was 122.1MB in the beginning and 121.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 10:18:25,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.32ms. Allocated memory is still 190.8MB. Free memory was 123.7MB in the beginning and 111.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.89ms. Allocated memory is still 190.8MB. Free memory was 111.1MB in the beginning and 109.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.61ms. Allocated memory is still 190.8MB. Free memory was 109.3MB in the beginning and 107.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.14ms. Allocated memory is still 190.8MB. Free memory was 107.3MB in the beginning and 155.6MB in the end (delta: -48.4MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 419.11ms. Allocated memory is still 190.8MB. Free memory was 154.6MB in the beginning and 122.1MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 2.92ms. Allocated memory is still 190.8MB. Free memory was 122.1MB in the beginning and 121.0MB 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 someBinaryDOUBLEComparisonOperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 64; [L23] unsigned char var_1_4 = 1; [L24] unsigned short int var_1_5 = 16; [L25] unsigned short int var_1_6 = 32; [L26] signed long int var_1_7 = -10; [L27] double var_1_8 = 9999999.5; [L28] double var_1_9 = 10.25; [L60] isInitial = 1 [L61] FCALL initially() [L62] COND TRUE 1 [L63] FCALL updateLastVariables() [L64] CALL updateVariables() [L44] var_1_4 = __VERIFIER_nondet_uchar() [L45] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=64, var_1_5=16, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=64, var_1_5=16, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L45] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=64, var_1_5=16, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L46] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=64, var_1_4=1, var_1_5=16, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=64, var_1_4=1, var_1_5=16, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L46] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, var_1_1=64, var_1_4=1, var_1_5=16, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L47] var_1_5 = __VERIFIER_nondet_ushort() [L48] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=64, var_1_4=1, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=64, var_1_4=1, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L48] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=64, var_1_4=1, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L49] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_1=64, var_1_4=1, var_1_5=65534, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=64, var_1_4=1, var_1_5=65534, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L49] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, var_1_1=64, var_1_4=1, var_1_5=65534, var_1_6=32, var_1_7=-10, var_1_8=19999999/2, var_1_9=41/4] [L50] var_1_9 = __VERIFIER_nondet_double() [L51] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=64, var_1_4=1, var_1_5=65534, var_1_6=32, var_1_7=-10, var_1_8=19999999/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=64, var_1_4=1, var_1_5=65534, var_1_6=32, var_1_7=-10, var_1_8=19999999/2] [L51] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=64, var_1_4=1, var_1_5=65534, var_1_6=32, var_1_7=-10, var_1_8=19999999/2] [L64] RET updateVariables() [L65] CALL step() [L32] var_1_6 = var_1_5 [L33] var_1_7 = var_1_6 [L34] var_1_8 = var_1_9 VAL [isInitial=1, var_1_1=64, var_1_4=1, var_1_5=65534, var_1_6=65534, var_1_7=65534, var_1_8=10000004, var_1_9=10000004] [L35] COND FALSE !((0.5 + var_1_8) != (var_1_8 * 0.5)) [L40] var_1_1 = var_1_5 VAL [isInitial=1, var_1_1=65534, var_1_4=1, var_1_5=65534, var_1_6=65534, var_1_7=65534, var_1_8=10000004, var_1_9=10000004] [L65] RET step() [L66] CALL, EXPR property() [L56-L57] return (((((0.5 + var_1_8) != (var_1_8 * 0.5)) ? (var_1_4 ? (var_1_1 == ((unsigned short int) var_1_5)) : 1) : (var_1_1 == ((unsigned short int) var_1_5))) && (var_1_6 == ((unsigned short int) var_1_5))) && (var_1_7 == ((signed long int) var_1_6))) && (var_1_8 == ((double) var_1_9)) ; [L66] RET, EXPR property() [L66] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=65534, var_1_4=1, var_1_5=65534, var_1_6=65534, var_1_7=65534, var_1_8=10000004, var_1_9=10000004] [L19] reach_error() VAL [isInitial=1, var_1_1=65534, var_1_4=1, var_1_5=65534, var_1_6=65534, var_1_7=65534, var_1_8=10000004, var_1_9=10000004] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 5, 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, 24 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, 24 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 40/40 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 10:18:25,588 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_operatoramount_amount10_file-27.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 a2516b40220938196b9b667879c45993cd4bcecc3daa1c811132234d646c2577 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 10:18:27,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 10:18:27,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-24 10:18:27,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 10:18:27,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 10:18:27,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 10:18:27,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 10:18:27,354 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 10:18:27,355 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 10:18:27,356 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 10:18:27,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 10:18:27,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 10:18:27,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 10:18:27,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 10:18:27,359 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 10:18:27,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 10:18:27,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 10:18:27,360 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 10:18:27,360 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 10:18:27,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 10:18:27,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 10:18:27,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 10:18:27,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 10:18:27,362 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 10:18:27,362 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 10:18:27,362 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 10:18:27,362 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 10:18:27,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 10:18:27,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 10:18:27,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 10:18:27,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 10:18:27,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 10:18:27,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 10:18:27,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 10:18:27,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 10:18:27,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 10:18:27,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 10:18:27,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 10:18:27,364 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 10:18:27,364 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 10:18:27,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 10:18:27,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 10:18:27,366 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 10:18:27,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 10:18:27,366 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 10:18:27,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2516b40220938196b9b667879c45993cd4bcecc3daa1c811132234d646c2577 [2024-10-24 10:18:27,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 10:18:27,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 10:18:27,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 10:18:27,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 10:18:27,632 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 10:18:27,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-27.i [2024-10-24 10:18:28,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 10:18:28,990 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 10:18:28,991 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-27.i [2024-10-24 10:18:28,999 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d456cda6b/cf6c40d532a3453a994fd6b6ba1bf720/FLAG62cf3832b [2024-10-24 10:18:29,013 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d456cda6b/cf6c40d532a3453a994fd6b6ba1bf720 [2024-10-24 10:18:29,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 10:18:29,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 10:18:29,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 10:18:29,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 10:18:29,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 10:18:29,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d202c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29, skipping insertion in model container [2024-10-24 10:18:29,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 10:18:29,179 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_operatoramount_amount10_file-27.i[915,928] [2024-10-24 10:18:29,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 10:18:29,217 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 10:18:29,228 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_operatoramount_amount10_file-27.i[915,928] [2024-10-24 10:18:29,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 10:18:29,269 INFO L204 MainTranslator]: Completed translation [2024-10-24 10:18:29,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29 WrapperNode [2024-10-24 10:18:29,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 10:18:29,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 10:18:29,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 10:18:29,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 10:18:29,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,300 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 62 [2024-10-24 10:18:29,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 10:18:29,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 10:18:29,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 10:18:29,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 10:18:29,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,329 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 10:18:29,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 10:18:29,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 10:18:29,349 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 10:18:29,349 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 10:18:29,350 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (1/1) ... [2024-10-24 10:18:29,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 10:18:29,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 10:18:29,373 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 10:18:29,375 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 10:18:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 10:18:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 10:18:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 10:18:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 10:18:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 10:18:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 10:18:29,457 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 10:18:29,459 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 10:18:30,351 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-24 10:18:30,352 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 10:18:30,389 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 10:18:30,389 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 10:18:30,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:30 BoogieIcfgContainer [2024-10-24 10:18:30,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 10:18:30,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 10:18:30,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 10:18:30,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 10:18:30,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:18:29" (1/3) ... [2024-10-24 10:18:30,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5315dac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:18:30, skipping insertion in model container [2024-10-24 10:18:30,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:18:29" (2/3) ... [2024-10-24 10:18:30,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5315dac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:18:30, skipping insertion in model container [2024-10-24 10:18:30,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:30" (3/3) ... [2024-10-24 10:18:30,398 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-27.i [2024-10-24 10:18:30,420 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 10:18:30,420 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 10:18:30,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 10:18:30,469 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;@6593102, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 10:18:30,469 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 10:18:30,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-24 10:18:30,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-24 10:18:30,477 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:18:30,477 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:18:30,478 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:18:30,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:18:30,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1626744690, now seen corresponding path program 1 times [2024-10-24 10:18:30,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 10:18:30,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614671286] [2024-10-24 10:18:30,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:18:30,495 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 10:18:30,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 10:18:30,498 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 10:18:30,499 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 10:18:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:30,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 10:18:30,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:18:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 10:18:30,688 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 10:18:30,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 10:18:30,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614671286] [2024-10-24 10:18:30,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614671286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:18:30,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:18:30,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 10:18:30,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644111186] [2024-10-24 10:18:30,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:18:30,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 10:18:30,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 10:18:30,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 10:18:30,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 10:18:30,713 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 10:18:31,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:18:31,013 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2024-10-24 10:18:31,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 10:18:31,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 34 [2024-10-24 10:18:31,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:18:31,029 INFO L225 Difference]: With dead ends: 43 [2024-10-24 10:18:31,030 INFO L226 Difference]: Without dead ends: 21 [2024-10-24 10:18:31,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 33 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 10:18:31,034 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 10:18:31,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 10:18:31,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-10-24 10:18:31,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-10-24 10:18:31,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-24 10:18:31,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2024-10-24 10:18:31,064 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 34 [2024-10-24 10:18:31,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:18:31,064 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-10-24 10:18:31,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 10:18:31,065 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-10-24 10:18:31,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-24 10:18:31,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:18:31,066 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:18:31,073 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 10:18:31,266 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 10:18:31,267 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:18:31,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:18:31,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1719482064, now seen corresponding path program 1 times [2024-10-24 10:18:31,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 10:18:31,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591083514] [2024-10-24 10:18:31,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:18:31,268 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 10:18:31,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 10:18:31,270 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 10:18:31,276 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 10:18:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:31,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 10:18:31,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:18:35,133 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 10:18:35,134 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 10:18:35,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 10:18:35,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591083514] [2024-10-24 10:18:35,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591083514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:18:35,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:18:35,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 10:18:35,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287051980] [2024-10-24 10:18:35,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:18:35,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 10:18:35,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 10:18:35,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 10:18:35,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 10:18:35,140 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 10:18:37,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:18:37,468 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2024-10-24 10:18:37,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 10:18:37,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 34 [2024-10-24 10:18:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:18:37,470 INFO L225 Difference]: With dead ends: 52 [2024-10-24 10:18:37,470 INFO L226 Difference]: Without dead ends: 50 [2024-10-24 10:18:37,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2024-10-24 10:18:37,472 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 45 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 10:18:37,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 55 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 10:18:37,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-24 10:18:37,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 34. [2024-10-24 10:18:37,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-24 10:18:37,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2024-10-24 10:18:37,483 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 34 [2024-10-24 10:18:37,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:18:37,484 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2024-10-24 10:18:37,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 10:18:37,484 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2024-10-24 10:18:37,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-24 10:18:37,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:18:37,485 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:18:37,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-24 10:18:37,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 10:18:37,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:18:37,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:18:37,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1773118068, now seen corresponding path program 1 times [2024-10-24 10:18:37,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 10:18:37,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426004729] [2024-10-24 10:18:37,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:18:37,687 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 10:18:37,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 10:18:37,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 10:18:37,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 10:18:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:18:37,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 10:18:37,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:18:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 10:18:55,688 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 10:18:55,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 10:18:55,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426004729] [2024-10-24 10:18:55,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426004729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:18:55,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:18:55,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 10:18:55,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412935574] [2024-10-24 10:18:55,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:18:55,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 10:18:55,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 10:18:55,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 10:18:55,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 10:18:55,691 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 10:19:25,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:19:25,253 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2024-10-24 10:19:25,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 10:19:25,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 35 [2024-10-24 10:19:25,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:19:25,266 INFO L225 Difference]: With dead ends: 54 [2024-10-24 10:19:25,266 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 10:19:25,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-10-24 10:19:25,267 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 48 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-10-24 10:19:25,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 65 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2024-10-24 10:19:25,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 10:19:25,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 10:19:25,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 10:19:25,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 10:19:25,271 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2024-10-24 10:19:25,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:19:25,271 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 10:19:25,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 10:19:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 10:19:25,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 10:19:25,273 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 10:19:25,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-24 10:19:25,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 10:19:25,482 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-24 10:19:25,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 10:19:35,515 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 10:19:35,553 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-24 10:19:35,554 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-24 10:19:35,554 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-24 10:19:35,554 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-24 10:19:35,554 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-24 10:19:35,554 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-24 10:19:35,562 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-24 10:19:35,564 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-24 10:19:35,564 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-24 10:19:35,565 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-24 10:19:35,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:19:35 BoogieIcfgContainer [2024-10-24 10:19:35,571 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 10:19:35,572 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 10:19:35,572 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 10:19:35,573 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 10:19:35,573 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:18:30" (3/4) ... [2024-10-24 10:19:35,574 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 10:19:35,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-24 10:19:35,581 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-10-24 10:19:35,581 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-24 10:19:35,582 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 10:19:35,582 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 10:19:35,650 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 10:19:35,651 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 10:19:35,651 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 10:19:35,651 INFO L158 Benchmark]: Toolchain (without parser) took 66635.08ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 42.4MB in the beginning and 58.9MB in the end (delta: -16.5MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2024-10-24 10:19:35,652 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 10:19:35,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.67ms. Allocated memory is still 69.2MB. Free memory was 42.4MB in the beginning and 48.1MB in the end (delta: -5.7MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-10-24 10:19:35,652 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.69ms. Allocated memory is still 69.2MB. Free memory was 48.1MB in the beginning and 46.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 10:19:35,652 INFO L158 Benchmark]: Boogie Preprocessor took 46.68ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 44.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 10:19:35,653 INFO L158 Benchmark]: RCFGBuilder took 1041.16ms. Allocated memory is still 69.2MB. Free memory was 44.3MB in the beginning and 29.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 10:19:35,653 INFO L158 Benchmark]: TraceAbstraction took 65179.18ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 28.7MB in the beginning and 63.9MB in the end (delta: -35.1MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2024-10-24 10:19:35,653 INFO L158 Benchmark]: Witness Printer took 79.17ms. Allocated memory is still 88.1MB. Free memory was 63.9MB in the beginning and 58.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 10:19:35,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.67ms. Allocated memory is still 69.2MB. Free memory was 42.4MB in the beginning and 48.1MB in the end (delta: -5.7MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.69ms. Allocated memory is still 69.2MB. Free memory was 48.1MB in the beginning and 46.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.68ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 44.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1041.16ms. Allocated memory is still 69.2MB. Free memory was 44.3MB in the beginning and 29.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 65179.18ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 28.7MB in the beginning and 63.9MB in the end (delta: -35.1MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * Witness Printer took 79.17ms. Allocated memory is still 88.1MB. Free memory was 63.9MB in the beginning and 58.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.0s, OverallIterations: 3, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 32.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 15.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 15.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 60 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 26.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=2, InterpolantAutomatonStates: 39, 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, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 21.6s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 580 SizeOfPredicates, 16 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 120/120 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((0 != cond) && ((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9)))) RESULT: Ultimate proved your program to be correct! [2024-10-24 10:19:35,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE