./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6be8c61124ae7b0d434e1a6e7e7df1be3e3bca0c1d0e7a5376e369656416ef61 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:59:33,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:59:34,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:59:34,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:59:34,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:59:34,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:59:34,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:59:34,100 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:59:34,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:59:34,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:59:34,101 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:59:34,102 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:59:34,102 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:59:34,102 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:59:34,103 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:59:34,103 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:59:34,103 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:59:34,103 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:59:34,103 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:59:34,103 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:59:34,103 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:59:34,103 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:59:34,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:59:34,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:59:34,104 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:59:34,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:59:34,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:59:34,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:59:34,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:59:34,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:59:34,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:59:34,105 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:59:34,105 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:59:34,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:59:34,105 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:59:34,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:59:34,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:59:34,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:59:34,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:59:34,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:59:34,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:59:34,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:59:34,106 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:59:34,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:59:34,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:59:34,106 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:59:34,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:59:34,106 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 6be8c61124ae7b0d434e1a6e7e7df1be3e3bca0c1d0e7a5376e369656416ef61 [2024-11-14 03:59:34,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:59:34,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:59:34,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:59:34,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:59:34,476 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:59:34,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c Unable to find full path for "g++" [2024-11-14 03:59:36,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:59:36,726 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:59:36,743 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2024-11-14 03:59:36,760 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/data/e9bfa9ea6/39790ef3057b4076838a3092cdb035b8/FLAG6c959a6d9 [2024-11-14 03:59:36,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/data/e9bfa9ea6/39790ef3057b4076838a3092cdb035b8 [2024-11-14 03:59:36,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:59:36,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:59:36,976 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:59:36,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:59:36,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:59:36,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:59:36" (1/1) ... [2024-11-14 03:59:36,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d541a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:36, skipping insertion in model container [2024-11-14 03:59:36,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:59:36" (1/1) ... [2024-11-14 03:59:36,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:59:37,123 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c[352,365] [2024-11-14 03:59:37,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:59:37,135 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:59:37,147 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c[352,365] [2024-11-14 03:59:37,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:59:37,162 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:59:37,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37 WrapperNode [2024-11-14 03:59:37,162 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:59:37,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:59:37,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:59:37,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:59:37,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,193 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-11-14 03:59:37,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:59:37,194 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:59:37,194 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:59:37,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:59:37,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,208 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:59:37,210 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:59:37,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:59:37,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:59:37,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (1/1) ... [2024-11-14 03:59:37,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:59:37,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:59:37,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:59:37,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:59:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:59:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:59:37,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:59:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:59:37,341 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:59:37,343 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:59:37,404 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-14 03:59:37,405 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:59:37,423 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:59:37,423 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:59:37,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:59:37 BoogieIcfgContainer [2024-11-14 03:59:37,424 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:59:37,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:59:37,426 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:59:37,430 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:59:37,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:59:36" (1/3) ... [2024-11-14 03:59:37,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65745b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:59:37, skipping insertion in model container [2024-11-14 03:59:37,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:37" (2/3) ... [2024-11-14 03:59:37,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65745b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:59:37, skipping insertion in model container [2024-11-14 03:59:37,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:59:37" (3/3) ... [2024-11-14 03:59:37,433 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2024-11-14 03:59:37,448 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:59:37,450 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp1.c that has 1 procedures, 6 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 03:59:37,500 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:59:37,512 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=FINITE_AUTOMATA, 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;@6f98b397, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:59:37,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:59:37,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2024-11-14 03:59:37,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:59:37,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:37,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:59:37,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:59:37,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash 42445, now seen corresponding path program 1 times [2024-11-14 03:59:37,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:37,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830335039] [2024-11-14 03:59:37,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:37,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:59:37,621 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:59:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:59:37,654 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:59:37,656 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:59:37,658 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:59:37,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:59:37,665 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:59:37,678 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:59:37,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:59:37 BoogieIcfgContainer [2024-11-14 03:59:37,681 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:59:37,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:59:37,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:59:37,682 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:59:37,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:59:37" (3/4) ... [2024-11-14 03:59:37,686 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:59:37,686 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:59:37,688 INFO L158 Benchmark]: Toolchain (without parser) took 712.72ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 59.3MB in the end (delta: 34.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:59:37,688 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:37,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.88ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.7MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:59:37,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.95ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:37,689 INFO L158 Benchmark]: Boogie Preprocessor took 15.67ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 81.1MB in the end (delta: 432.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:37,690 INFO L158 Benchmark]: RCFGBuilder took 213.39ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 71.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:59:37,690 INFO L158 Benchmark]: TraceAbstraction took 256.05ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 59.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:59:37,690 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 117.4MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:37,693 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.88ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.7MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.95ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.67ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 81.1MB in the end (delta: 432.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 213.39ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 71.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 256.05ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 59.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 117.4MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of to_int at line 9, overapproximation of to_real at line 10. Possible FailurePath: [L6] unsigned int i, j; [L7] double d; [L9] i=100.0 [L10] d=i [L11] j=d [L12] COND TRUE !(j==100) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 03:59:37,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6be8c61124ae7b0d434e1a6e7e7df1be3e3bca0c1d0e7a5376e369656416ef61 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:59:40,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:59:40,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:59:40,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:59:40,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:59:40,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:59:40,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:59:40,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:59:40,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:59:40,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:59:40,596 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:59:40,597 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:59:40,597 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:59:40,597 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:59:40,597 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:59:40,597 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:59:40,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:59:40,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:59:40,598 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:59:40,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:59:40,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:59:40,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:59:40,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:59:40,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:59:40,599 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:59:40,599 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:59:40,599 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:59:40,599 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:59:40,599 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:59:40,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:59:40,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:59:40,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:59:40,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:59:40,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:59:40,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:59:40,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:59:40,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:59:40,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:59:40,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:59:40,604 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:59:40,604 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:59:40,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:59:40,604 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:59:40,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 6be8c61124ae7b0d434e1a6e7e7df1be3e3bca0c1d0e7a5376e369656416ef61 [2024-11-14 03:59:41,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:59:41,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:59:41,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:59:41,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:59:41,030 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:59:41,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c Unable to find full path for "g++" [2024-11-14 03:59:42,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:59:43,240 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:59:43,241 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2024-11-14 03:59:43,250 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/data/7cf09116f/005f2804ddff4bedb8260c5b3bd05200/FLAG05913811e [2024-11-14 03:59:43,275 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/data/7cf09116f/005f2804ddff4bedb8260c5b3bd05200 [2024-11-14 03:59:43,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:59:43,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:59:43,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:59:43,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:59:43,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:59:43,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b08e11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43, skipping insertion in model container [2024-11-14 03:59:43,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,309 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:59:43,495 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c[352,365] [2024-11-14 03:59:43,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:59:43,523 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:59:43,541 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c[352,365] [2024-11-14 03:59:43,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:59:43,565 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:59:43,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43 WrapperNode [2024-11-14 03:59:43,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:59:43,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:59:43,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:59:43,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:59:43,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,610 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-11-14 03:59:43,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:59:43,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:59:43,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:59:43,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:59:43,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,640 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:59:43,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:59:43,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:59:43,650 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:59:43,651 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (1/1) ... [2024-11-14 03:59:43,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:59:43,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:59:43,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:59:43,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:59:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:59:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:59:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:59:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:59:43,812 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:59:43,814 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:59:44,056 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-14 03:59:44,056 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:59:44,070 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:59:44,071 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:59:44,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:59:44 BoogieIcfgContainer [2024-11-14 03:59:44,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:59:44,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:59:44,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:59:44,085 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:59:44,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:59:43" (1/3) ... [2024-11-14 03:59:44,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d1be32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:59:44, skipping insertion in model container [2024-11-14 03:59:44,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:43" (2/3) ... [2024-11-14 03:59:44,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d1be32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:59:44, skipping insertion in model container [2024-11-14 03:59:44,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:59:44" (3/3) ... [2024-11-14 03:59:44,089 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2024-11-14 03:59:44,109 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:59:44,111 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp1.c that has 1 procedures, 8 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 03:59:44,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:59:44,203 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=FINITE_AUTOMATA, 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;@7947f04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:59:44,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:59:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2024-11-14 03:59:44,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:59:44,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:44,216 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:59:44,217 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:59:44,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:44,228 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2024-11-14 03:59:44,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:59:44,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592337156] [2024-11-14 03:59:44,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:44,241 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:59:44,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:59:44,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:59:44,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 03:59:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:59:44,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:59:44,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:59:44,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:59:44,505 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:59:44,505 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:59:44,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592337156] [2024-11-14 03:59:44,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592337156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:59:44,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:59:44,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:59:44,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558377635] [2024-11-14 03:59:44,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:59:44,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:59:44,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:59:44,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:59:44,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:59:44,545 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-14 03:59:44,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:44,585 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2024-11-14 03:59:44,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:59:44,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2024-11-14 03:59:44,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:44,594 INFO L225 Difference]: With dead ends: 11 [2024-11-14 03:59:44,595 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:59:44,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:59:44,601 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 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 [2024-11-14 03:59:44,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:59:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:59:44,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:59:44,627 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) [2024-11-14 03:59:44,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:59:44,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2024-11-14 03:59:44,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:44,635 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:59:44,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-14 03:59:44,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:59:44,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:59:44,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:59:44,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 03:59:44,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:59:44,847 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:59:44,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 03:59:44,857 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:59:44,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:59:44 BoogieIcfgContainer [2024-11-14 03:59:44,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:59:44,875 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:59:44,875 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:59:44,875 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:59:44,877 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:59:44" (3/4) ... [2024-11-14 03:59:44,881 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:59:44,892 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-14 03:59:44,892 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 03:59:44,893 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 03:59:44,893 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 03:59:44,975 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:59:44,975 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 03:59:44,975 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:59:44,978 INFO L158 Benchmark]: Toolchain (without parser) took 1696.17ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 48.9MB in the end (delta: 44.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-14 03:59:44,978 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:44,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.19ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.8MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:59:44,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.62ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:44,981 INFO L158 Benchmark]: Boogie Preprocessor took 35.83ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.9MB in the end (delta: 789.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:44,981 INFO L158 Benchmark]: RCFGBuilder took 421.55ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 71.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:59:44,982 INFO L158 Benchmark]: TraceAbstraction took 798.22ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 53.0MB in the end (delta: 17.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:59:44,983 INFO L158 Benchmark]: Witness Printer took 100.67ms. Allocated memory is still 117.4MB. Free memory was 53.0MB in the beginning and 48.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:44,988 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.19ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.8MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.62ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.83ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.9MB in the end (delta: 789.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 421.55ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 71.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 798.22ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 53.0MB in the end (delta: 17.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 100.67ms. Allocated memory is still 117.4MB. Free memory was 53.0MB in the beginning and 48.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: 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 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, 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, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 1 QuantifiedInterpolants, 14 SizeOfPredicates, 1 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be correct! [2024-11-14 03:59:45,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113f884-9924-4811-8fb9-de8354319008/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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