./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_square-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu --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 fa8669e514192921cf64fdf0639cd37a443816328604ea9b0272ab52a6769b9f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:30,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:30,671 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:55:30,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:30,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:30,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:30,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:30,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:30,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:30,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:30,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:30,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:30,716 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:30,717 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:30,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:30,719 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:30,719 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:30,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:30,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:30,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:30,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:30,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:30,724 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:30,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:30,725 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:30,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:30,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:30,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:30,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:30,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:30,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:30,730 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:30,731 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:30,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:30,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:30,732 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:30,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:30,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:30,734 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:30,734 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa8669e514192921cf64fdf0639cd37a443816328604ea9b0272ab52a6769b9f [2023-11-19 07:55:31,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:31,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:31,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:31,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:31,118 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:31,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/float-benchs/inv_square-1.c [2023-11-19 07:55:34,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:34,602 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:34,603 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/sv-benchmarks/c/float-benchs/inv_square-1.c [2023-11-19 07:55:34,612 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/data/1a896b658/2d9b6e882874402d8785b02be01c43c4/FLAG9a316f792 [2023-11-19 07:55:34,633 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/data/1a896b658/2d9b6e882874402d8785b02be01c43c4 [2023-11-19 07:55:34,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:34,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:34,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:34,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:34,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:34,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be649bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34, skipping insertion in model container [2023-11-19 07:55:34,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:34,864 WARN L240 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_52476fc3-0e97-4b84-bde2-b741e00d36c6/sv-benchmarks/c/float-benchs/inv_square-1.c[487,500] [2023-11-19 07:55:34,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:34,889 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:34,903 WARN L240 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_52476fc3-0e97-4b84-bde2-b741e00d36c6/sv-benchmarks/c/float-benchs/inv_square-1.c[487,500] [2023-11-19 07:55:34,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:34,923 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:34,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34 WrapperNode [2023-11-19 07:55:34,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:34,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:34,926 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:34,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:34,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,970 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2023-11-19 07:55:34,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:34,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:34,972 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:34,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:34,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:34,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:35,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:35,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:35,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:35,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:35,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (1/1) ... [2023-11-19 07:55:35,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:35,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:35,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:35,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:35,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:35,214 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:35,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:35,327 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:35,336 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:35,337 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:55:35,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:35 BoogieIcfgContainer [2023-11-19 07:55:35,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:35,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:35,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:35,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:35,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:34" (1/3) ... [2023-11-19 07:55:35,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5420177f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:35, skipping insertion in model container [2023-11-19 07:55:35,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:34" (2/3) ... [2023-11-19 07:55:35,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5420177f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:35, skipping insertion in model container [2023-11-19 07:55:35,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:35" (3/3) ... [2023-11-19 07:55:35,353 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square-1.c [2023-11-19 07:55:35,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:35,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:55:35,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:35,441 INFO L357 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, mHoare=true, 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;@2c546f68, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:35,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:55:35,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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) [2023-11-19 07:55:35,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:55:35,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:35,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:35,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:35,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1804966375, now seen corresponding path program 1 times [2023-11-19 07:55:35,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:35,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806413974] [2023-11-19 07:55:35,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:35,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:35,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:35,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:35,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806413974] [2023-11-19 07:55:35,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806413974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:35,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:35,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:35,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841155955] [2023-11-19 07:55:35,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:35,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:35,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:35,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:35,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:35,695 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-19 07:55:35,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:35,716 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-11-19 07:55:35,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:35,718 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-11-19 07:55:35,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:35,727 INFO L225 Difference]: With dead ends: 23 [2023-11-19 07:55:35,728 INFO L226 Difference]: Without dead ends: 8 [2023-11-19 07:55:35,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:35,736 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:35,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:35,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-19 07:55:35,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-19 07:55:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2023-11-19 07:55:35,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2023-11-19 07:55:35,782 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2023-11-19 07:55:35,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:35,783 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2023-11-19 07:55:35,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-19 07:55:35,784 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-11-19 07:55:35,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:55:35,785 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:35,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:35,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:55:35,786 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:35,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:35,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1806813417, now seen corresponding path program 1 times [2023-11-19 07:55:35,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:35,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457463093] [2023-11-19 07:55:35,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:35,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:35,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:35,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:35,895 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:55:35,897 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:55:35,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:55:35,905 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:55:35,909 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:55:35,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:55:35 BoogieIcfgContainer [2023-11-19 07:55:35,935 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:55:35,936 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:35,936 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:35,937 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:35,937 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:35" (3/4) ... [2023-11-19 07:55:35,940 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:55:35,941 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:35,942 INFO L158 Benchmark]: Toolchain (without parser) took 1297.55ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 68.4MB in the beginning and 87.3MB in the end (delta: -19.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-19 07:55:35,943 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:35,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.60ms. Allocated memory is still 115.3MB. Free memory was 68.4MB in the beginning and 57.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:55:35,948 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.87ms. Allocated memory is still 115.3MB. Free memory was 57.9MB in the beginning and 56.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:35,949 INFO L158 Benchmark]: Boogie Preprocessor took 42.34ms. Allocated memory is still 115.3MB. Free memory was 56.6MB in the beginning and 55.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:35,952 INFO L158 Benchmark]: RCFGBuilder took 325.92ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 55.4MB in the beginning and 110.4MB in the end (delta: -55.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-19 07:55:35,953 INFO L158 Benchmark]: TraceAbstraction took 591.06ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 87.3MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:35,954 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 142.6MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:35,962 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.60ms. Allocated memory is still 115.3MB. Free memory was 68.4MB in the beginning and 57.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.87ms. Allocated memory is still 115.3MB. Free memory was 57.9MB in the beginning and 56.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.34ms. Allocated memory is still 115.3MB. Free memory was 56.6MB in the beginning and 55.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 325.92ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 55.4MB in the beginning and 110.4MB in the end (delta: -55.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 591.06ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 87.3MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 142.6MB. Free memory is still 87.3MB. 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: 13]: 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 someBinaryFLOATComparisonOperation at line 22, overapproximation of someBinaryArithmeticFLOAToperation at line 23. Possible FailurePath: [L17] float x, y, z; [L19] x = __VERIFIER_nondet_float() [L20] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L20] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L22] COND TRUE x != 0.f [L23] y = x * x [L24] CALL __VERIFIER_assert(y != 0.f) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, 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, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:55:36,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu --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 fa8669e514192921cf64fdf0639cd37a443816328604ea9b0272ab52a6769b9f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:38,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:38,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:55:39,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:39,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:39,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:39,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:39,038 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:39,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:39,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:39,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:39,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:39,043 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:39,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:39,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:39,048 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:39,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:39,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:39,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:39,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:39,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:39,058 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:55:39,059 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:55:39,059 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:55:39,060 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:39,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:39,061 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:39,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:39,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:39,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:39,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:39,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:39,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:39,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:39,067 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:55:39,068 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:55:39,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:39,068 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:39,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:39,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:39,071 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:55:39,071 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:39,071 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa8669e514192921cf64fdf0639cd37a443816328604ea9b0272ab52a6769b9f [2023-11-19 07:55:39,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:39,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:39,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:39,578 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:39,579 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:39,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/float-benchs/inv_square-1.c [2023-11-19 07:55:42,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:43,321 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:43,322 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/sv-benchmarks/c/float-benchs/inv_square-1.c [2023-11-19 07:55:43,331 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/data/295776710/58376cbd14da46b082b4f02a41460d89/FLAGe45eff244 [2023-11-19 07:55:43,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/data/295776710/58376cbd14da46b082b4f02a41460d89 [2023-11-19 07:55:43,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:43,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:43,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:43,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:43,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:43,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411c8f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43, skipping insertion in model container [2023-11-19 07:55:43,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,395 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:43,573 WARN L240 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_52476fc3-0e97-4b84-bde2-b741e00d36c6/sv-benchmarks/c/float-benchs/inv_square-1.c[487,500] [2023-11-19 07:55:43,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:43,616 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:43,636 WARN L240 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_52476fc3-0e97-4b84-bde2-b741e00d36c6/sv-benchmarks/c/float-benchs/inv_square-1.c[487,500] [2023-11-19 07:55:43,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:43,665 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:43,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43 WrapperNode [2023-11-19 07:55:43,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:43,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:43,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:43,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:43,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,713 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2023-11-19 07:55:43,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:43,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:43,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:43,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:43,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,769 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:43,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:43,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:43,779 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:43,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:43,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:43,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:43,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:55:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:43,960 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:43,962 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:44,629 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:44,638 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:44,639 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:55:44,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:44 BoogieIcfgContainer [2023-11-19 07:55:44,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:44,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:44,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:44,655 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:44,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:43" (1/3) ... [2023-11-19 07:55:44,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf48847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:44, skipping insertion in model container [2023-11-19 07:55:44,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (2/3) ... [2023-11-19 07:55:44,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf48847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:44, skipping insertion in model container [2023-11-19 07:55:44,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:44" (3/3) ... [2023-11-19 07:55:44,660 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square-1.c [2023-11-19 07:55:44,682 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:44,682 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:55:44,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:44,753 INFO L357 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, mHoare=true, 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;@1f80fa8a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:44,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:55:44,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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) [2023-11-19 07:55:44,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:55:44,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:44,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:44,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:44,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:44,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1804966375, now seen corresponding path program 1 times [2023-11-19 07:55:44,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:44,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849057704] [2023-11-19 07:55:44,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:44,793 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 [2023-11-19 07:55:44,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:44,799 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:55:44,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:55:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:44,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:55:44,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:45,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:45,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:55:45,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849057704] [2023-11-19 07:55:45,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849057704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:45,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:45,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:45,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884391566] [2023-11-19 07:55:45,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:45,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:45,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:55:45,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:45,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:45,058 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-19 07:55:45,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:45,072 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-11-19 07:55:45,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:45,075 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-11-19 07:55:45,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:45,084 INFO L225 Difference]: With dead ends: 23 [2023-11-19 07:55:45,084 INFO L226 Difference]: Without dead ends: 8 [2023-11-19 07:55:45,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:45,092 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:45,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:55:45,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-19 07:55:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-19 07:55:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2023-11-19 07:55:45,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2023-11-19 07:55:45,127 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2023-11-19 07:55:45,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:45,128 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2023-11-19 07:55:45,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-19 07:55:45,128 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-11-19 07:55:45,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:55:45,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:45,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:45,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:45,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:55:45,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:55:45,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:45,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1806813417, now seen corresponding path program 1 times [2023-11-19 07:55:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:55:45,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638124847] [2023-11-19 07:55:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:45,336 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 [2023-11-19 07:55:45,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:55:45,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:55:45,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:55:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:45,460 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:45,540 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-19 07:55:45,540 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:55:45,542 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:55:45,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:45,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:55:45,747 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:55:45,751 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:55:45,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:55:45 BoogieIcfgContainer [2023-11-19 07:55:45,776 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:55:45,777 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:45,777 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:45,777 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:45,778 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:44" (3/4) ... [2023-11-19 07:55:45,779 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 07:55:45,829 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:55:45,829 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:45,830 INFO L158 Benchmark]: Toolchain (without parser) took 2476.78ms. Allocated memory is still 86.0MB. Free memory was 62.5MB in the beginning and 38.1MB in the end (delta: 24.4MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:45,830 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:45,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.74ms. Allocated memory is still 86.0MB. Free memory was 62.5MB in the beginning and 51.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:55:45,835 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.91ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 49.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:45,835 INFO L158 Benchmark]: Boogie Preprocessor took 61.24ms. Allocated memory is still 86.0MB. Free memory was 49.9MB in the beginning and 48.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:45,836 INFO L158 Benchmark]: RCFGBuilder took 869.90ms. Allocated memory is still 86.0MB. Free memory was 48.7MB in the beginning and 62.3MB in the end (delta: -13.6MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-11-19 07:55:45,836 INFO L158 Benchmark]: TraceAbstraction took 1125.42ms. Allocated memory is still 86.0MB. Free memory was 61.5MB in the beginning and 40.0MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:55:45,837 INFO L158 Benchmark]: Witness Printer took 52.46ms. Allocated memory is still 86.0MB. Free memory was 40.0MB in the beginning and 38.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:45,844 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.74ms. Allocated memory is still 86.0MB. Free memory was 62.5MB in the beginning and 51.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.91ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 49.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.24ms. Allocated memory is still 86.0MB. Free memory was 49.9MB in the beginning and 48.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 869.90ms. Allocated memory is still 86.0MB. Free memory was 48.7MB in the beginning and 62.3MB in the end (delta: -13.6MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1125.42ms. Allocated memory is still 86.0MB. Free memory was 61.5MB in the beginning and 40.0MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 52.46ms. Allocated memory is still 86.0MB. Free memory was 40.0MB in the beginning and 38.1MB in the end (delta: 1.9MB). 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 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] float x, y, z; [L19] x = __VERIFIER_nondet_float() [L20] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L20] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L22] COND TRUE x != 0.f [L23] y = x * x [L24] CALL __VERIFIER_assert(y != 0.f) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, 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, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 1 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:55:45,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52476fc3-0e97-4b84-bde2-b741e00d36c6/bin/uautomizer-verify-uCwYo4JHxu/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE